API Development is an effective way for software to communicate and interact with each other over the internet. It’s a great way for developers to expand the capabilities of a program or systems by creating interfaces and allow data to be shared between different types of technology. With an API, existing systems can connect and more advanced solutions can be made. Hiring an API Developer can enable businesses to streamline processes and enable a much faster integration of existing software solutions.

API Developers are skilled engineers specialized in creating new APIs and maintaining existing ones. They are responsible for developing and troubleshooting current APIs, designing APIs from standards-based web services, maintaining inventory and implementing authorization mechanisms. Additionally, they incorporate different technologies together to create advanced software solutions that integrate cloud systems like Amazon Web Services or MongoDB and APIs with point-and-click platforms, like WordPress or HubSpot.

Here’s some projects that our expert API Developer made real:

  • Creating advanced databases on different cloud systems
  • Linking between two cameras from a microscope
  • Interfacing with customizing Wordpress themes, Woocommerce themes and SMS services
  • Building secure back end systems to analyze different public APIs
  • Applying sophisticated authorization mechanisms
  • Creating comprehensive ecommerce websites using MERN Stack
  • Developing node APIs for exchange markets using Node.js, Web3.js, Ether.js
  • Automatically out of stocking items from supplier’s stock through an API system.

It is no surprise that good API Development is the cornerstone of many successful software solutions. Our expert API Developers are well experienced in developing suitable solutions for projects ranging from app development to SaaS applications, game development to enterprise system integrations. WithFreelancer.com, businesses can easily hire one of these skilled professionals to build their own bespoke projects that are perfectly tailored for their needs. So why not post your own project on Freelancer today and hire an expert API Developer?

Müşterilerimiz, API Developers freelancerlarımızı 88,532 değerlendirme içinden 5 üzerinden 4.9 ile derecelendirdi.
API Developers İşe Alın

API Development is an effective way for software to communicate and interact with each other over the internet. It’s a great way for developers to expand the capabilities of a program or systems by creating interfaces and allow data to be shared between different types of technology. With an API, existing systems can connect and more advanced solutions can be made. Hiring an API Developer can enable businesses to streamline processes and enable a much faster integration of existing software solutions.

API Developers are skilled engineers specialized in creating new APIs and maintaining existing ones. They are responsible for developing and troubleshooting current APIs, designing APIs from standards-based web services, maintaining inventory and implementing authorization mechanisms. Additionally, they incorporate different technologies together to create advanced software solutions that integrate cloud systems like Amazon Web Services or MongoDB and APIs with point-and-click platforms, like WordPress or HubSpot.

Here’s some projects that our expert API Developer made real:

  • Creating advanced databases on different cloud systems
  • Linking between two cameras from a microscope
  • Interfacing with customizing Wordpress themes, Woocommerce themes and SMS services
  • Building secure back end systems to analyze different public APIs
  • Applying sophisticated authorization mechanisms
  • Creating comprehensive ecommerce websites using MERN Stack
  • Developing node APIs for exchange markets using Node.js, Web3.js, Ether.js
  • Automatically out of stocking items from supplier’s stock through an API system.

It is no surprise that good API Development is the cornerstone of many successful software solutions. Our expert API Developers are well experienced in developing suitable solutions for projects ranging from app development to SaaS applications, game development to enterprise system integrations. WithFreelancer.com, businesses can easily hire one of these skilled professionals to build their own bespoke projects that are perfectly tailored for their needs. So why not post your own project on Freelancer today and hire an expert API Developer?

Müşterilerimiz, API Developers freelancerlarımızı 88,532 değerlendirme içinden 5 üzerinden 4.9 ile derecelendirdi.
API Developers İşe Alın

Filtre

Son aramalarım
Şuna göre filtrele:
Bütçe
ile
ile
ile
Tür
Beceri
Diller
    İş Durumu
    211 iş bulundu
    Full-Stack Maintenance
    6 gün left
    Onaylı

    Ad hoc updates and maintenance - Postgres + AWS + payload

    €9 / hr Average bid
    €9 / hr Ortalama Teklif
    39 teklifler

    the goal is to create a seamlesss, high-end ecommerce experience where customers browse entirely on our custom frontend () while Shopify operates invisibly in the background for checkout, inventory, and order management. ⸻ Key Objective: Ensure customers NEVER interact with or see the Shopify domain (.). The entire experience should feel like a single, cohesive website under southlocals.com. ⸻ Scope of Work: 1. Shopify Headless Integration • Connect Lovable frontend to Shopify using: • Storefront API (GraphQL preferred) • Pull: • Products • Variants • Pricing • Images ⸻ 2. Product Display (Frontend) • Build or integrate product data into Lovable frontend • Ensure: • Fast load times • Clean product grid + product pages...

    €23 Average bid
    €23 Ortalama Teklif
    53 teklifler
    PAN Card API Docs Package
    6 gün left
    Onaylı

    I run , a portal that already generates and corrects PAN cards, and I’m ready to open up the underlying service as a commercial API. I need a specialist who can turn the existing internal endpoints into well-structured public documentation and design a straightforward pay-as-you-go user plan. The documentation must live inside my portal, look professional on both desktop and mobile, and cover everything a developer needs to get productive fast: every endpoint and method, detailed error codes with handling advice, plus the rate limits and quota rules that match the plan you help me define. Authentication will be handled through API keys only, so the docs should include key creation, usage and rotation guidelines. For the user plan, I want a single pay-as-you-go model that clearly st...

    €63 Average bid
    €63 Ortalama Teklif
    30 teklifler

    I need a full-stack mobile solution that mirrors the core flow of Jedlo: customers browse restaurants, add dishes to a cart, pay securely with credit or debit cards, then watch their courier move in real time until the meal arrives. Key screens and logic include user sign-up/login by email or mobile number, searchable restaurant and menu listings with price details, checkout with integrated card gateway, live order-tracking map, and push notifications that confirm the order, update delivery status, and occasionally highlight promotions. An admin web panel must let me and individual restaurant owners handle menus, prices, orders, payouts, and user issues. Delivery partners require a pared-down login of their own so they can accept jobs, follow GPS routes, and mark orders complete. The in...

    €362 Average bid
    €362 Ortalama Teklif
    67 teklifler

    Mobile App (Android + iOS) I run a cricket portal called and I am looking to build high-performance mobile applications for both Android and iOS. The goal is to deliver a fast, real-time cricket experience where users can follow live matches ball-by-ball, read breaking news, and interact with other fans without needing a browser. Scope of Work Develop Android and iOS apps that replicate the core functionality of the website with a modern, responsive mobile experience. Key Features Live Scores Real-time score updates Ball-by-ball commentary Minimal latency and smooth UI updates News Feed Latest cricket news Fast loading and smooth scrolling Clean reading interface with caching Fan Interaction Live chat or match-based comments Real-time engagement Authentication Google Sign-In Facebook Log...

    €1949 Average bid
    €1949 Ortalama Teklif
    80 teklifler

    I want my Shopify store to talk smoothly to my existing, fully-configured Shiprocket account so orders move from “paid” to “shipped” without any manual work. The key outcomes I need are: • Every new Shopify order should flow into Shiprocket automatically, ready for label generation. • As soon as a label is generated or a shipment is picked up, the tracking number must feed back to Shopify and update the customer order status so shoppers see real-time tracking information in their account and email. My Shiprocket account is live and the settings are already in place; what’s missing is the technical bridge between Shopify and Shiprocket. You’ll handle the API connection, webhook setup, carrier/service mapping, and a quick round of test orde...

    €211 Average bid
    €211 Ortalama Teklif
    67 teklifler

    We are looking to develop a cloud-based multi-vendor rental marketplace platform for renting electronics, gaming consoles, laptops, and other assets. The platform will include vendor management, product listings, real-time booking, secure payments, logistics tracking, and an admin dashboard. It should be built with a scalable cloud architecture and support future expansion. Due to the sensitive nature of the project, a refundable security deposit of 10% (approx. $2,300) may be required from the selected developer/team to ensure data security, commitment, and protection against potential breaches. The amount will be fully refunded upon successful project completion. Key modules I expect you to deliver 1. Responsive web application plus companion iOS and Android apps sharing a common API...

    €19531 Average bid
    €19531 Ortalama Teklif
    47 teklifler

    I’m putting together a small proof-of-concept web app and need an experienced React developer who can move quickly from wireframe to working build. The interface should feel simple and minimalistic, built entirely with reusable React components and clean JSX. State and prop management must enable real-time updates so the screen always reflects the latest data without a page refresh. Navigation will rely on a menu with dropdown items; no side drawers or tab bars are required. Behind the scenes, I want a lightweight Node + Express API hooked to a MongoDB collection. The front end should consume that API for full CRUD while keeping response times snappy. Deliverables • React front end with minimalistic styling and dropdown menu navigation • Real-time data layer (WebSock...

    €9 Average bid
    €9 Ortalama Teklif
    24 teklifler

    I need the existing ANZ gateway upgraded to ANZ Bank Worldline Global gateway so customers can continue to pay without leaving the site. You’ll work directly with the Worldline REST API and build and install the new gateway. I will supply API keys, test credentials and server access to the AWS server where the website is hosted. Acceptance will be based on: 1. Passing transactions in Worldline’s sandbox, then live environment, with clear success and fail states reflected in the OpenCart order timeline. 2. No PHP notices, warnings or overrides to core files; code follows PSR-12 and OpenCart coding standards. If you’ve previously integrated Worldline let me know—the learning curve will be minimal. I’m aiming to test and push to production in a week, so ...

    €142 Average bid
    €142 Ortalama Teklif
    35 teklifler

    I am creating an online visa-appointment platform that removes fraud and black-market bookings through strong identity checks and a transparent slot-allocation engine. The core of the system is Supabase on the backend, with Sumsub handling passport, facial-match and liveness verification, and Twilio (plus email) delivering real-time notifications. Both the admin and consulate dashboards are equally critical. The admin side focuses first on system settings and notification controls, while the consulate view needs clear priority rules, slot visibility and a friction-free workflow for approving or rejecting applicants. I am after a clean, fast UI—nothing design-heavy, just intuitive screens built with solid front-end practices. I’m looking for a full-stack developer who is com...

    €3526 Average bid
    €3526 Ortalama Teklif
    137 teklifler

    Project Title: Python Backend Developer with AWS Expertise Project Description: Looking for a highly skilled Python backend developer with expertise in AWS to work on fixing bugs, building APIs, and optimizing backend performance. The developer must be comfortable working remotely via TeamViewer. This is an 8-month fixed-term project with a monthly budget of ₹15,000 - ₹17,000 INR. Budget: ₹15,000 - ₹17,000 INR per month

    €66 Average bid
    €66 Ortalama Teklif
    14 teklifler

    I need a working MVP that covers the full trucking workflow on three fronts: a customer-facing mobile app, a driver-facing mobile app, and a lightweight web dashboard for operations. Purpose The customer app must let shippers request a truck for their load, watch its progress on a live map, and stay in direct contact with the driver. On the other side, the driver app should surface incoming orders, allow quick acceptance or rejection, and keep the load status updated until delivery is complete. The web dashboard will give my team basic oversight of active trips, registered users, and key metrics. Core functionality (must be in the first release) • Truck tracking in real time • Order creation and end-to-end management • Seamless customer–driver communication (in-app c...

    €495 Average bid
    €495 Ortalama Teklif
    124 teklifler

    I’m putting together my first in-house payroll tool and the one thing I cannot compromise on is accurate tax calculation. The system will only ever handle a modest staff list—fewer than fifty people—so I’m not looking for an enterprise monster, just something lean that gets the numbers right every pay cycle. Here’s what I have in mind: • Core task: pull basic employee data (name, gross pay, filing status, allowances, any pre-tax or post-tax deductions) and return precise federal, state, and local withholding figures. • I’d like the calculations to follow the current IRS tables automatically; if you prefer plugging in a lookup file or an API, that works as long as it stays up to date. • The output should be easy to export—CSV or...

    €19 Average bid
    €19 Ortalama Teklif
    14 teklifler

    Requerimientos del Sistema de Gestión Académica 1. Registro de Alumnos • Formulario de registro detallado para estudiantes. • Almacenamiento de información académica del alumno. • Almacenamiento de documentos relacionados al estudiante. • Consulta de información estudiantil. • Actualización de datos del estudiante. ________________________________________ 2. Pre-Matrículas y Matrículas • Proceso de matrícula de estudiantes. • Sistema automatizado de matrícula. • Generación automática de códigos de matrícula. • Generación de recibos de matrícula. • Historial de matrículas por estudiante. _____________________________________...

    €435 Average bid
    €435 Ortalama Teklif
    83 teklifler

    I’m launching and need the foundations of a social-network site built. The first release centres on user accounts: visitors should be able to sign up, log in, and create a personal profile that displays a picture and short bio. I’d like clean, modular code that makes it easy to layer in messaging, a news feed, and other community tools later, but those extras are out of scope for this milestone. I’m open to the stack you feel most comfortable with—React, Vue, or another modern front-end paired with a secure Node, Django, or comparable back-end are all fine—as long as you include straightforward authentication, image upload/processing for the avatar, and a responsive layout. Deliverables: • Responsive web interface with sign-up / log-in flow • ...

    €17 / hr Average bid
    €17 / hr Ortalama Teklif
    197 teklifler

    About ProviderNow ProviderNow is an AI-powered healthcare technology company redefining what it means to access care in America. We believe healthcare should be radically accessible, easy to use, affordable to everyone, and built around real people, not insurance bureaucracy. Our platform connects individuals to licensed medical professionals for urgent primary and preventive care, mental health and substance use support, and wellness services like weight loss, hormonal therapy, and hair restoration, all delivered virtually, securely, and on-demand. Through our FREE MEMBERSHIP, users receive personalized health insights from Pauli AI, our proprietary AI health assistant, and gain access to a comprehensive suite of low-cost medical services. Whether you need a same-day visit, an ongoing ...

    €812 Average bid
    €812 Ortalama Teklif
    205 teklifler

    I need an individual fullstack developer (Flutter frontend + Node.js/PHP backend) to debug and stabilize my app. AI assistance is allowed, but all fixes must be verified manually, fully tested, and auditable. Scope / Core Issues: WebSocket / chat: reconnection logic, sync, error handling Wallet persistence: app forgets wallet on restart Balance update delay: refresh required Transaction history: wrong API endpoints, missing logs QR scanner: missing for sending funds Crypto backend APIs inactive: register, create, restore, tokens, notifications Requirements: Maximum 62 hours, preferred less Tasks will be audited Clear documentation and testing required Individual developer only – no teams Payment: Fixed-price milestone Payment released after verification of fixes No...

    €12 / hr Average bid
    €12 / hr Ortalama Teklif
    252 teklifler

    Project Description: I am looking for an experienced WordPress developer to implement a new custom function on my website. The task involves adding specific functionality that is not available in the current theme or plugins, so it will require custom development. The solution should follow WordPress best practices and be compatible with the existing website structure. Requirements: • Strong experience with WordPress development • Good knowledge of PHP, MySQL, HTML, CSS, and JavaScript • Experience with custom WordPress functions, hooks, and APIs • Ability to write clean, maintainable code • Experience working with existing WordPress themes and plugins without breaking current functionality Project Scope: • Review the current WordPress setup • I...

    €128 Average bid
    €128 Ortalama Teklif
    278 teklifler

    Digital Identity Engineer Zurich Services US (Schaumburg, IL) seeks a Digital Identity Engineer responsible for sustaining and enhancing the operations of existing platforms, as well as coordinating and managing scope, estimations, and delivery of multiple small to large-scale projects to achieve desired organization goals and benefits. Specific duties include: define program/project requirements; design, implement, test and maintain production systems; publish priorities for efforts within the program that will be broken down into multiple project streams and maintain master schedule with clear dependencies; analyze programs to ensure that they efficiently use computer and storage resources; recommend appropriate changes as necessary; responsible for research, analysis, and design of all ...

    €49 / hr Average bid
    €49 / hr Ortalama Teklif
    27 teklifler

    I am developing an application in PHP/MySQL that needs to automatically send WhatsApp messages to my customers. I have already registered my business on the Meta platform (WhatsApp Business) and obtained access to the Graph API. However, I am completely lost when navigating Meta's menus and settings. I do not know how to create and get message templates approved, nor how to structure the API calls to send: Simple messages (text + URL link), Messages with an image + URL link, Messages with a PDF attachment + URL link. Simple message All these messages will always contain a URL link (to redirect to a web page). I need assistance with: Validating the templates with Meta (creation, submission, approval) while ensuring compliance with their content policies. Generating the API cal...

    €32 Average bid
    €32 Ortalama Teklif
    91 teklifler

    I need a small-to-mid-size piece of software that will fully automate an internal process. The exact workflow and data sources will be shared once we sign an NDA, but in broad strokes the task involves reading structured input, applying a set of business rules, and producing an export that can be fed straight into our existing system. The schedule is tight: I’d like a first usable build, complete with source code and basic documentation, delivered within seven days of project start. Because of that, I’m looking for someone who can point to relevant, real-world experience with similar automation projects—please highlight the most comparable work you’ve done and the technologies you used. If you’re confident you can turn around a clean, reliable solution o...

    €25 / hr Average bid
    €25 / hr Ortalama Teklif
    15 teklifler

    Project Overview: "The Fresh Lab"Concept: A premium D2C (Direct-to-Consumer) platform where users can design their own fruit salads, platters, or snack boxes. Instead of buying pre-mixed bowls, customers have 100% control over the ingredients, portion sizes, and cutting styles. Core Features & Functionalities1. Interactive Fruit Customizer (The "Builder")This is the heart of the website. A step-by-step UI for the user:Pick Your Base: Choose from seasonal fruits (Mango, Watermelon) or exotic ones (Kiwi, Dragon Fruit, Avocado).Choose the Cut: Options for Cubes, Slices, Wedges, or Whole Selection: Precise control (e.g., 150g of Apple and 50g of Blueberries).Visual Representation: A dynamic 3D or 2D image that updates as the user adds fruits to their virtual bowl.2. Sm...

    €78 Average bid
    €78 Ortalama Teklif
    19 teklifler

    I run the cricket portal and now I need the same experience packaged as a native Android application. The app has to mirror the website’s real-time score cards, rolling news feed, and the user comment/chat section so fans can follow and react to every ball without opening a browser. Smooth, low-latency updates are critical, especially during live matches. Users should sign in quickly through social media rather than the traditional email-and-password flow. Once authenticated they must land straight in the live scores area, with seamless navigation to news and chat. Deliverables • Full Android Studio project with clean, well-documented source code • Release-ready APK plus signed bundle for Play Store submission • Brief setup guide covering API keys, social logi...

    €629 Average bid
    €629 Ortalama Teklif
    55 teklifler

    We are looking for a Senior Java Backend Developer with deep expertise in high-performance data architectures to join our team. As we scale our career pathway platform, your primary focus will be optimizing how we store, retrieve, and search complex datasets. You will be responsible for bridging our robust Java/Spring services with a modern data stack centered around MongoDB and Elasticsearch to provide our users with lightning-fast, relevant results. Key Responsibilities * Data Architecture: Design and implement scalable data models in MongoDB, ensuring efficient document structures for high-speed read/write operations. * Search Optimization: Architect and maintain Elasticsearch clusters, including index management, custom mapping, and complex query DSL optimization to power advanced s...

    €979 Average bid
    €979 Ortalama Teklif
    144 teklifler

    I need a full-stack developer (or team) to create an instant buy-and-sell platform for USDT that feels as smooth as any modern fintech app. The site must allow customers in India to purchase or liquidate USDT with UPI, bank transfer, IMPS, or even cash deposit, then push the funds straight to their TRC20 or BEP20 wallet within seconds. Website want like this ---> Core flow 1. Visitor chooses Buy or Sell 2. Enters amount and picks a payment rail 3. Completes the transfer 4. Receives USDT (or INR) instantly Key requirements • Authentication: simple email verification during sign-up, with the code auto-expiring after five minutes. • UI: modern, sleek, fully responsive design—no dated templates. • Speed: the matching engine and payment callbacks need...

    €104 Average bid
    €104 Ortalama Teklif
    10 teklifler

    I run a fully custom React JS platform that presents investment dashboards to our users. I now need the site to pull live security-market data—specifically stock prices, detailed company financials, and the complete annual and quarterly reports for every covered company to summarize the data—directly from the Corporate data API provider we license. The task breaks down into two connected pieces: 1) API hookup • Authenticate against the vendor’s security market corporate API. • Build efficient React-friendly service calls (REST or GraphQL, whichever the API supports) that return stock prices, financial statements, and the full text of 10-K / 10-Q-style filings. • Cache or paginate data so pages stay fast even when a user requests multiple compani...

    €278 Average bid
    €278 Ortalama Teklif
    46 teklifler

    I need an informational website built from the ground up and want every piece of content—illustrations, creatives, related images and animations—to be generated on-the-fly by an AI stack that combines Nanobanana 2 with Claude. The goal is a visually engaging, scroll-driven experience in which visitors keep discovering fresh, AI-crafted visuals as they move down each page. Here is what matters most to me: • Architecture: a clean, modern front-end (your preferred framework is fine) that can call Nanobanana 2 + Claude through API hooks you wire up. • Content workflow: the site should automatically request and display new graphics or short motion snippets in context, matching the section topic without manual intervention. • Visual style: “scroll” is...

    €480 Average bid
    €480 Ortalama Teklif
    85 teklifler

    I already process transactions through a Mobile Money aggregator, but it lacks two things I now need: 1) a shareable payment-link flow, and 2) additional ways for customers to pay. Here is what I’m after. You will leverage the aggregator’s REST API (and its webhooks) to generate a unique checkout URL for each order. When a shopper opens that URL they must be able to pay not only with their existing Mobile Money wallet but also with Visa/Mastercard credit or debit cards and other popular mobile wallets. Once the payment is completed or fails, the system should post the result back to my backend so I can automatically update order status. Key deliverables • A secure payment-link generator coded in Node that plugs into my current stack. • Front-end checkout scr...

    €131 Average bid
    €131 Ortalama Teklif
    153 teklifler

    I need to build a complete dataset of every individual trade ever executed on sports betting markets on Polymarket, a prediction market platform running on the Polygon blockchain. The end goal is a structured file where each row represents a single trade fill, containing the wallet address, the market and event it belongs to, which sport/league it falls under, the outcome being traded, price per share, number of shares, USDC amount, timestamp, transaction hash, and whether that wallet was the maker or taker. Each row should also include the settlement result of that market (which outcome won) so that I can calculate profit and loss on my own. The dataset needs to be granular and complete enough that I can perform any analysis I want on trader behavior, performance, and patterns after deliv...

    €250 Average bid
    €250 Ortalama Teklif
    46 teklifler

    Our company is a platform that combines LLM observability, user intent analytics, explainable AI, and embedded AI Ethics — empowering companies to scale Generative AI with transparency, trust, and traceable responsibility. We turn every AI response into a safe, explainable, and auditable decision, ensuring ethical alignment from prompt to impact. NON-INVASIVE ARCHITECTURE FULL FEATURE LIST 1. LLM Observability Engine What it does: Detects hallucinations, contradictions, ambiguity, or timeouts Back-End: FastAPI, Prompt Log DB, Anomaly Classifier Front-End: Table view, risk icons, filters 2. User Behavior & Friction Analysis What it does: Detects frustration, reprompt loops, abandonment Back-End: Event tracker, heatmap aggregator Front-End: Heatmaps, UX breakdown, friction fla...

    €21 / hr Average bid
    €21 / hr Ortalama Teklif
    149 teklifler

    We are looking for a Ukrainian Junior Python Developer with an interest in AI to assist with development tasks on a contract basis. This is a great opportunity for someone early in their career who wants to gain hands-on experience working on AI-related projects. Responsibilities - Assist with Python development tasks - Work with AI-related tools, APIs, or libraries - Write clean, maintainable code - Help with testing, debugging, and improving existing code - Collaborate with the team and communicate progress Requirements - Based in Ukraine - Good English communication skills (written and spoken) - Basic to intermediate Python knowledge - Interest in AI / machine learning - Familiarity with Git - Ability to work independently and meet deadlines Nice to Have - Experience with pytest or o...

    €20 / hr Average bid
    €20 / hr Ortalama Teklif
    125 teklifler

    I need an attendance system built for our employees that works smoothly on Android and pairs with a browser-based control dashboard. The core job is to let staff check in and out during their shifts, while I can monitor the logs in real time from the web panel. Here is what I expect: • Android mobile app – clean UI where employees tap to check in and check out, with the data pushed instantly to the server. • Web dashboard – secure login for managers to view, filter, and export attendance records, plus basic user management so we can add or deactivate employee profiles. • Shared backend – REST or GraphQL API, database schema, and any admin scripts necessary to keep everything in sync. Acceptance is simple: after installation I should be able to create...

    €113 Average bid
    €113 Ortalama Teklif
    47 teklifler

    My automation for creating TextNow accounts is 95 % finished—emulation, US residential proxies, and the full production call sequence are already set up. The only blocker is PerimeterX: each registration request is being stopped by its bot-detection layer. I will share a text file containing raw request/response pairs, headers and current cookies, so you can replicate the exact flow locally. Using that material, I need a Python routine that programmatically secures the required PerimeterX token (or equivalent cookie) and lets the rest of the script proceed without triggering a challenge. Deliverables • A self-contained, well-documented Python module/class that returns a valid PerimeterX token on demand • Integration instructions showing how to drop the solution into m...

    €93 Average bid
    €93 Ortalama Teklif
    68 teklifler

    I need a self-contained module that lets my web application talk to a TRC20 wallet through a direct Binance connection. Once wired up, the user must be able to: • Send and receive TRC20 tokens • View a complete, paginated transaction history • Check their live account balance in real time The front end is currently React, with a Node back end, but I’m happy for you to bring your own stack as long as it uses stable libraries such as TronWeb, or the official Binance API and keeps private keys on the client side. Your code should be clean, well-commented and easy for another developer to drop into a Git repo, run `npm install`, and be up and running with minimal configuration. Please include any environment variables or API keys that need to be set, and a br...

    €227 Average bid
    €227 Ortalama Teklif
    19 teklifler

    I’m starting from a clean slate and need a developer who can build an elegant portfolio site on Strapi CMS. The goal is to showcase my work through a well-structured image gallery, invite enquiries with a simple yet reliable contact form, and reinforce credibility via a dedicated testimonials section—all managed easily through Strapi’s content-modeling interface. You’ll set up the Strapi backend, create the necessary content types for projects, images, testimonials, and messages, and wire them to a modern frontend of your choice (React, , Nuxt, or similar). Clean code, modular components, and clear documentation are essential so I can extend the site later without headaches. Deliverables: • Strapi project with content types and role-based permissions configur...

    €3 / hr Average bid
    €3 / hr Ortalama Teklif
    78 teklifler

    I want to build a complete membership-based loyalty and discount ecosystem from the ground up. The project covers a responsive web portal plus companion apps for both iOS and Android, all driven by a single cloud database and supported by ongoing maintenance. Core experience Members will join the club, move through tiered levels, and unlock exclusive discounts that participating merchants can publish in real time. A streamlined onboarding flow is needed for both consumers and merchants, and each user type—admin, merchant, and member—must see only the data relevant to them through separate dashboards. Key deliverables • Web portal designed for desktop and mobile browsers • Native or high-performance cross-platform apps for iOS and Android released to their stor...

    €5015 Average bid
    €5015 Ortalama Teklif
    199 teklifler

    I need a full-stack developer (or team) who can take this project from concept to deployment: a professional-grade crypto investment and USDT exchange platform with a clean, modern fintech UI and a rock-solid, secure backend. Core user flow • Visitors create an account, deposit USDT through an on-site wallet integration, select from several investment plans, track earnings in a personal dashboard, and submit withdrawal requests when ready. • An admin console gives me total oversight of users, deposits, withdrawals, plans, and the full transaction log. Key modules to deliver 1. Registration & login with standard email/password (expandable to 2FA later). 2. Responsive dashboard showing balance, active plans, earnings, and full transaction history. 3. Deposit workflo...

    €103 Average bid
    €103 Ortalama Teklif
    14 teklifler

    I have an existing ASP.NET Core application that already relies on a Kendo Grid for data presentation. I now need a fully functional cashier POS screen added to the project, built with the same tech stack so the look, feel, and performance stay consistent. The core requirement is inventory management from the POS interface—adding items to the cart should immediately reflect stock levels and prevent overselling. All CRUD operations for products must remain in Kendo Grid, but the new screen should surface quantity-on-hand in real time and write changes back to the current database context. Key expectations • Seamless routing from my current menu to the new POS page • Responsive layout suitable for a touchscreen terminal • Instant stock deduction on completed s...

    €57 Average bid
    €57 Ortalama Teklif
    97 teklifler

    I'm looking for a skilled developer to create a Chrome extension that automates job searching and do little 2-3 steps more on one specific website. The extension should: - Automate searching for jobs - Perform 2-3 additional steps bot should be done very very fast Ideal skills and experience: - Proficiency in JavaScript - Experience developing Chrome extensions - Familiarity with web scraping and automation tools - Detail-oriented and reliable call me if you want on - +918708832574 Please provide samples of similar work and estimated delivery time.

    €57 Average bid
    €57 Ortalama Teklif
    26 teklifler

    I need a complete pharmacy system that combines fast, accurate billing with a robust inventory back-end. The core of the project is a billing module that can issue invoices automatically and feed data straight into a live stock ledger, so every sale adjusts inventory in real time. Inventory control must include: • Real-time stock updates the moment items are sold, returned, or received • Low-stock alerts triggered at thresholds I can set per SKU • Batch and expiry-date tracking so I always know what lots are nearing expiry and can pull reports by batch number The platform also has to talk to my existing tech stack. It should exchange data smoothly with: • Our Point of Sale system for front-counter transactions • The ERP system that handles purcha...

    €325 Average bid
    Yerel
    €325 Ortalama Teklif
    66 teklifler

    I’m building a classic, professional-looking website that will serve as the account hub for an upcoming mobile app. Visitors must be able to create an account with their email, confirm it through a verification link, and have their details stored in MongoDB. From there, the site needs to expose a secure API so the mobile app can: • check a user’s premium status in real time • grant or revoke the free premium rewards we’ll offer at launch A referral system is central to the concept. Each new user should automatically receive a unique referral link and a scannable QR code. When someone signs up through that code, the original referrer’s premium membership is extended; the database has to track these relationships so the extension logic stays accura...

    €98 Average bid
    €98 Ortalama Teklif
    41 teklifler

    I need a lightweight web application that lets users locate and download property documents. The entire focus is speedy, accurate search and easy retrieval. Core search requirements • By property address • By owner name • By document number Once a match is found, users should be able to view a quick preview (PDF or image) and download the the documents required by paying a small fee. Deliverables 1. Responsive website deployed to a test server of my choosing 2. Script or pipeline that ingests new deed PDFs and updates the index automatically 3. Source code with clear setup instructions (README)

    €68 Average bid
    €68 Ortalama Teklif
    77 teklifler

    We are building a fintech governance platform called ClearTek that manages milestone-based capital governance and investor transparency for film productions. The platform acts as a governance layer for film financing, tracking project deposits, their conditions, and their approval status, without ever taking custody of funds. ​ We already have an Electron prototype with the UI mostly built, but the code is still in prototype shape and needs to be cleaned up, structured for production, and wired to a reliable persistence layer. ​ The four core components we need implemented cleanly are: ​ Deposit / investment registry (structured list of deposits/investments with metadata and status). ​ Custodian awareness (the platform tracks which external party holds funds; the app itself never holds...

    €9 / hr Average bid
    €9 / hr Ortalama Teklif
    123 teklifler

    Project: Lead Generation and Email Outreach Automation Tool About the Business We are a custom joinery and shopfitting company based in Melbourne, Australia. We want to reach out to potential clients in a systematic and professional way. We need a tool that finds these businesses automatically, collects their contact information, and sends them personalised emails on our behalf. What the Tool Must Do 1. Find Businesses Search for businesses across 305 Melbourne suburbs in these five categories: Builders and construction companies Architects Interior designers Cabinet makers Shop fitters For each business found, the tool must collect: Business name Address Phone number Website Email address Instagram profile link LinkedIn profile link Contact person name (if available) Email address is...

    €357 Average bid
    €357 Ortalama Teklif
    132 teklifler

    Saya sudah memiliki situs/aplikasi yang berfungsi, namun saya merasa masih banyak potensi yang belum tergarap. Fokus utama saya adalah meningkatkan fungsionalitas yang ada dengan menambahkan fitur tambahan yang benar-benar membantu pengguna. Saya belum begitu paham sisi teknisnya, jadi saya butuh seseorang yang: • Dapat berdiskusi bersama saya untuk memetakan kebutuhan fitur baru. • Menyusun rencana pengembangan yang jelas dan mudah saya ikuti. • Membangun, menguji, dan memastikan fitur berjalan mulus di lingkungan produksi. • Memberikan dokumentasi singkat serta panduan penggunaan agar saya bisa memelihara fitur tersebut ke depannya. Jika Anda juga mampu melakukan peningkatan kecepatan atau penyegaran tampilan di saat yang sama, itu akan menjadi nilai tambah, t...

    €17 Average bid
    €17 Ortalama Teklif
    5 teklifler

    I am looking for a developer to build a system that interacts directly with the Amazon Hiring APIs used on in order to automatically detect and book available shifts without using a browser or Chrome extension. Currently the booking process happens through the website UI, but I want a backend system that communicates directly with the API endpoints to make the process significantly faster and more efficient. Core Requirements 1. Direct API Communication The system must communicate directly with the Amazon Hiring GraphQL APIs used by the website. Examples include APIs responsible for: • User authentication • Job card search • Shift availability • Shift booking The system must replicate the same request structure used by the website, including: • headers • to...

    €330 Average bid
    €330 Ortalama Teklif
    34 teklifler

    We are looking for an experienced team or agency to take on this project long-term. Project Overview The goal of this project is to have hundreds of real users collecting survey data for us. These users will contact real people by email and ask them survey questions. What Needs to Be Built To make this possible, you will need to build a micro-task platform where users can: Sign up and create an account View available survey tasks Complete survey tasks by contacting people and collecting responses Submit the collected data through the platform User Acquisition You will also be responsible for marketing the platform and acquiring the first 100–1000 users who will complete these tasks. My Role My role will simply be to: Create and publish the survey tasks Pay users for complet...

    €8632 Average bid
    €8632 Ortalama Teklif
    147 teklifler

    Project Description: We are a web hosting company based in Hyderabad, India. We are migrating our billing platform from WHMCS to and need an experienced developer to build a custom domain registrar module. What We Need: We require a fully functional domain registrar integration module for that connects with Cosmotown API. Module Must Support: ✓ Domain availability check / search ✓ Domain registration ✓ Domain renewal ✓ Domain transfer ✓ Domain deletion / cancellation ✓ DNS management (nameserver updates) ✓ Domain locking / unlocking ✓ WHOIS privacy / ID protection ✓ EPP / auth code retrieval ✓ Auto-sync domain expiry dates ✓ Premium domain support ✓ TLD pricing sync ✓ Indian TLDs (.in, ., . etc.) Technical Requirements: - Built using Upmind Module SDK / API - PHP 8.x compatible - Cosmo...

    €67 Average bid
    €67 Ortalama Teklif
    30 teklifler

    We are a small startup working towards a goal what we need is a web app with the following - 2 static pages 2 pages connected to a database where it reads data from the database adding a radar chart to one page adding a filter to filter out data on one page 2 pages with a questionnaire (one short one long, questions provided, need to process one short 30-45 second video and around 3 pdf's for the long questionnaire) 3 instances of payment processing (most likely a stripe integration, also need to email a pdf with the receipt with one payment integration) a simple user login showing payment history of user total 6 pages (2 static, 4 dynamic with some functionality) Monetization and reporting are part of the prototype. I need three separate payment touchpoints wired up through Stripe...

    €882 Average bid
    Gizlilik Anlaşması
    €882 Ortalama Teklif
    266 teklifler

    Sizin için Tavsiye Edilen Makaleler