API stands for Application Programming Interface, and it is an layer of interface that allows programs to interact with each other. An experienced API developer can build complex interactions between applications, making them faster, more reliable, and accurate. Whether you need a second opinion on your existing application or you want to create an entirely new application for your business, an expert API Developer can do the job for you.

An API Developer's job does not stop at developing. They can also work on design and implementation testing, guide through the entire architect process from prototyping to implementation, create custom system integration solution based on the project requirements, and collaborate with other teams to develop systems that meet customer expectations.

When hiring an API Developer through Freelancer.com, rest assured that they are as competent as any hired onsite software engineer.

Here’s some projects our experts have worked on:

  • Building custom interfaces to move large amounts of data efficiently between applications
  • Working with Javascript to allow websites to access external information relating to weather conditions
  • Creating Grafana dashboards for quick and easy visualization of data points
  • Developing scripts to connect external APIs with more heavy-duty platforms like Microsoft Azure
  • Debugging mobile apps involving fishing
  • Integrating AI capabilities into online shops
  • Automating regression tests so developers can work faster and more accurately

No matter what your business needs are in terms of API development, our expert freelancers are ready to take on the challenge and provide support whenever you need it. With expertise in debugging applications and web development, you're guaranteed to find the right developer for your project! So why wait? Post your project today at Freelancers.com and reap the benefits of working with an expert API Developer now!

Müşterilerimiz, API Developers freelancerlarımızı 172,192 değerlendirme içinden 5 üzerinden 4.9 ile derecelendirdi.
API Developers İşe Alın

API stands for Application Programming Interface, and it is an layer of interface that allows programs to interact with each other. An experienced API developer can build complex interactions between applications, making them faster, more reliable, and accurate. Whether you need a second opinion on your existing application or you want to create an entirely new application for your business, an expert API Developer can do the job for you.

An API Developer's job does not stop at developing. They can also work on design and implementation testing, guide through the entire architect process from prototyping to implementation, create custom system integration solution based on the project requirements, and collaborate with other teams to develop systems that meet customer expectations.

When hiring an API Developer through Freelancer.com, rest assured that they are as competent as any hired onsite software engineer.

Here’s some projects our experts have worked on:

  • Building custom interfaces to move large amounts of data efficiently between applications
  • Working with Javascript to allow websites to access external information relating to weather conditions
  • Creating Grafana dashboards for quick and easy visualization of data points
  • Developing scripts to connect external APIs with more heavy-duty platforms like Microsoft Azure
  • Debugging mobile apps involving fishing
  • Integrating AI capabilities into online shops
  • Automating regression tests so developers can work faster and more accurately

No matter what your business needs are in terms of API development, our expert freelancers are ready to take on the challenge and provide support whenever you need it. With expertise in debugging applications and web development, you're guaranteed to find the right developer for your project! So why wait? Post your project today at Freelancers.com and reap the benefits of working with an expert API Developer now!

Müşterilerimiz, API Developers freelancerlarımızı 172,192 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
    53 iş bulundu

    Busco un especialista en automatización de WhatsApp Business y chatbots (ManyChat, WATI, API de Meta u otra herramienta) con experiencia en el sector inmobiliario para automatizar el proceso de atención a prospectos de mis inmuebles ya publicados. ​Requisitos y objetivos del proyecto: ​Perfilamiento de prospectos inmobiliarios: Configurar un flujo automatizado que haga preguntas clave al cliente (presupuesto, método de pago/crédito, zona de interés, urgencia de compra/renta) para filtrar y validar su perfil antes de coordinar una visita. ​Identificación de inmueble: Identificar de cuál de mis inmuebles publicados viene interesado el cliente. ​Agendamiento automático de citas: Integrar el chat con un calendario (Google Calendar, Calend...

    €127 Average bid
    €127 Ortalama Teklif
    67 teklifler
    €570 Ortalama Teklif
    91 teklifler

    GoHighLevel + WhatsApp + Reservo API — Duplicación e integración Presupuesto: US$125 luego la entrega me tomo 5 días para revisión no aya errores Entrega: lo más rápido posible, idealmente el mismo día Busco un freelancer con experiencia en GoHighLevel, WhatsApp, APIs/Webhooks y, preferiblemente, Python para realizar una integración sencilla. 1. Duplicar mi bot actual Actualmente tengo un bot de WhatsApp funcionando en GoHighLevel, configurado en portugués. Quiero duplicarlo en una nueva subcuenta y convertir la copia al español. MUY IMPORTANTE NO quiero que se modifique absolutamente nada del bot original. El bot original debe continuar funcionando exactamente como está. No modificar: Workflows origin...

    €11 / hr Average bid
    €11 / hr Ortalama Teklif
    135 teklifler

    My B2B store can’t advertise right now because Google Merchant Center flags a mix of business-profile problems, product-data errors and policy violations. I need the account brought back to full compliance and live ads running again. What’s happening inside GMC • Business details, product details and general policy sections all show warnings. • On the product side, many items are disapproved or limited because information is either incorrect or missing. Scope of work 1. Audit the current Merchant Center suspension notices, then update every business-profile field so no “Business details issues” remain. 2. Rebuild or repair the product feed (using Feed Rules, Google Sheets or API—whatever suits you) to eliminate the “Incorrect product ...

    €33 Average bid
    €33 Ortalama Teklif
    24 teklifler

    I need a straightforward yet rock-solid trading bot that can live on Binance around the clock. The core logic is a 100-level grid: as price drifts down it should accumulate positions level by level, then release them automatically on the ascent to the next level up. Everything has to flow through the official Binance API with secure key handling, low-latency order placement and sensible error recovery. Code & stack • Please write the bot in Python; that is my firm preference because I already use Python for other automation tasks and want to read or tweak the logic later. • Clear, modular structure and comments are important so maintenance is easy. Pairs & strategy tuning I do not have fixed trading pairs in mind and would value your market insight. Feel free to reco...

    €129 Average bid
    €129 Ortalama Teklif
    82 teklifler

    Cloud Pricing Validation & Test Automation Framework Designed and developed an end-to-end Python automation framework to scrape and validate cloud pricing data from AWS and Azure platforms. Built Selenium-based UI automation using the Page Object Model (POM) and PyTest framework to validate pricing calculators, search functionality, filters, and region selection. Implemented API validation using the requests library to compare pricing data with scraped UI data. Automated data storage in SQLite and performed SQL-based validation for duplicates, missing values, and historical price comparison. Generated HTML execution reports, detailed logs, CSV/Excel summaries, and dashboards to monitor pricing changes and regression results. Integrated modular architecture with reusable utilities, con...

    €88 Average bid
    €88 Ortalama Teklif
    42 teklifler

    I am an active Zerodha user in Kochi who wants to move from discretionary trades to a fully automated workflow. The priority is hands-on, in-person guidance that walks me through every practical step of setting up and running an algorithmic strategy with Zerodha’s Kite Connect API. Here is what I need from our sessions: • A complete local development environment on my laptop (Python, required libraries, IDE, version control). • Creation and management of API keys, plus secure handling of credentials. • A working template script that connects, pulls live market data, places orders, and logs activity. • Guidance on back-testing that same script so I can validate performance before going live. • Best-practice risk controls (position sizing, stop-loss ...

    €116 Average bid
    €116 Ortalama Teklif
    101 teklifler

    We need a developer who already has a working ESG / Sustainability Reporting platform that can be customized and delivered as a complete multi-tenant SaaS solution. MANDATORY: You must provide a walkthrough video or live demo credentials of your existing platform in the bid. Bids without this will be eliminated. Required Features Email + OTP login Multi-entity structure (Company, Entities, Branches, Regions) Stakeholders management + Survey tool Materiality assessment Metrics/KPIs management (assign to entities, enable/disable) Data collection with evidence upload and approval workflow Customizable dashboards with filters, ESG scores, SDG alignment, and performance tracking Multi-framework reporting (GRI, ISSB, SASB, TCFD, GHG Protocol) Settings: branding (logo & colors), ESG weight...

    €527 Average bid
    €527 Ortalama Teklif
    166 teklifler

    A brand-new website is going live and every form, click and download has to feed straight into Keap so visitors are instantly welcomed, tagged and nurtured. The core task is to plan and implement the strategic link between site and CRM with engagement-boosting automation at its heart. Here’s what needs to happen: • Map each website touch-point (landing pages, lead magnets, contact forms) to the right Keap tags, custom fields and goals. • Build email marketing automations that fire as soon as a visitor converts—welcome series, behavioural follow-ups and re-engagement loops. • Ensure data moves seamlessly and in real time via Keap’s API, webhooks or Zapier, eliminating manual entry. • Provide a clear, testable hand-off: a sample lead submitted on ...

    €16 / hr Average bid
    €16 / hr Ortalama Teklif
    238 teklifler

    I am looking for an experienced company or development team that can provide a complete White-Label iGaming Platform under my own brand. The solution should be production-ready, scalable, secure, and allow me to launch my own online casino business with minimal development time. Scope of Work The white-label solution should include: • Casino Games • 5,000+ Casino Games • Slots • Live Casino • Aviator • Crash Games • Roulette • Blackjack • Baccarat • Poker • Monopoly • Fishing Games • Table Games • Instant Games • Sports Betting • Game Providers Integration with multiple game providers such as: • Evolution • Pragmatic Play • Spribe • BGaming • SmartSoft • Hacksaw Gaming &bull...

    €1706 Average bid
    €1706 Ortalama Teklif
    219 teklifler

    **Project Title:** AI Agent that Finds Google Maps Businesses and Automatically Creates Websites for Them ### Overview I need an AI-powered agent/system that can: 1. Collect business data from Google Maps (name, address, phone, website, category, reviews, photos, etc.) 2. Automatically generate a complete website for each business using AI 3. Deliver the finished website (or a link to it) ### Core Features Needed **1. Google Maps Business Collection** - Search and extract businesses by location, category, or keyword - Collect key data: business name, address, phone number, website (if any), Google rating, number of reviews, category, opening hours, photos, etc. - Support bulk extraction (hundreds or thousands of businesses) - Preferably use official APIs or reliable methods (Google Plac...

    €76 Average bid
    €76 Ortalama Teklif
    134 teklifler

    Necesito un bot que, al cerrar cada vela de 4 horas, consulte los precios de tres activos clave—petróleo (crudo), Nasdaq 100 y oro—y envíe un resumen inmediato tanto a mi canal de Telegram como a mi número de WhatsApp. El mensaje debe incluir como mínimo: • Precio de cierre de la última vela de 4 h • Variación porcentual frente a la vela anterior Si resulta sencillo añadir un par de indicadores básicos (por ejemplo RSI o cruce de medias) para enriquecer el texto, perfecto; pero el core del proyecto es la notificación puntual de precios. Prefiero una solución en Python o Node .js porque ya trabajo con esos entornos, aunque estoy abierto a la tecnología que mejor garantice estabilidad...

    €36 Average bid
    €36 Ortalama Teklif
    35 teklifler

    $5-10 MAX Quick Fix Add Profit Capture Exit Logic (Polymarket Bot) I need a new exit rule that allows the bot to close positions early once a high percentage of the maximum possible profit is reached, instead of waiting for market expiry. Logic: Each position on Polymarket has a max payout of $1.00, so: max_profit = 1.00 - entry_price current_profit = current_price - entry_price profit_ratio = current_profit / max_profit Exit Condition: Add a configurable parameter: profit_capture_threshold (example: 0.70 – 0.85) If: profit_ratio >= profit_capture_threshold Then: Immediately close the position Lock in profit Free up buying power for new trades Example: Entry = 0.77 Max profit = 0.23 Current price = 0.94 Current profit = 0.17 profit_ratio = 0.17 / 0.23 ≈ 0.74 I...

    €37 Average bid
    €37 Ortalama Teklif
    44 teklifler

    I already have a working Python script that gathers hotel data for an academic study, but all traffic must now exit through a legitimate VPN endpoint located in one specific country. I need clear, step-by-step guidance to get this running on my Linux server without interrupting the scraper’s flow. Scope of work • Recommend non commercial VPN provider (NordVPN, ExpressVPN, Surfshark, or another comparable option) that allows API or CLI control. • Supply installation commands and configuration files (OpenVPN or WireGuard) that lock the connection to the required country. • Show how to automate reconnection on reboot or network drop, confirming the IP still resolves to that country. • Demonstrate, with a short Python snippet, how to trigger the scraper only a...

    €52 Average bid
    €52 Ortalama Teklif
    81 teklifler

    I need a specialist who can wire up my existing CallRail implementation so every phone call and form submission on three custom-coded landing pages is reported as both a Google Ads enhanced conversion and a GA4 event. The site is built using base44 ai agent consudting of .jsx/css/html and can easily integrate with any platform — everything should run through Google Tag Manager and API. What I want done • Build or refine a GTM container that fires on phone calls and form fills captured by CallRail. • Zapier workflow for new callers, repeat callers, good_leads, tagged calls as qualified/converted. • callrail fotmfills is integrated into lead docket using also would like to share lead docket updates back to callrail or Google ads for a full ROI spend for cases/clients...

    €884 Average bid
    €884 Ortalama Teklif
    124 teklifler

    I have an algo trading system currently running on Delta Exchange for both single-user and multi-user setups. I also have a single-user algo trading system running on Shark Exchange. I now want to replicate the existing Shark Exchange single-user code into a **multi-user setup**. The complete infrastructure and setup are already running on **Amazon Web Services (AWS)**. In addition to the multi-user Shark Exchange integration, I need a few minor changes to my website: * Replace Delta Exchange details with Shark Exchange details in 2–3 places. * Add a **Forgot Password** functionality. * Add a **logging system** for the multi-user setup to track user activity, API activity, orders, errors, etc. The existing system is already functional, so I am primarily looking for someone who ca...

    €52 Average bid
    €52 Ortalama Teklif
    18 teklifler

    Busco desarrollar un sistema de facturación en línea que se conecte de forma automática con ARCA para la emisión y registro de comprobantes. El programa debe calcular y reflejar correctamente el IVA y el impuesto interno en cada factura. Alcance principal: • Plataforma 100 % web, accesible desde cualquier navegador moderno. • Conexión estable con la API de ARCA: alta, anulación y consulta de facturas. • Cálculo detallado de impuestos (IVA e imp interno) según normativa vigente. Funciones adicionales imprescindibles: • Gestión de inventarios: altas, bajas, alertas de stock y valorización. • Integración con sistemas de contabilidad (exportación o sincronización de...

    €138 Average bid
    €138 Ortalama Teklif
    86 teklifler

    I am architecting “GoD Console,” an end-to-end trading platform that has to work seamlessly on both desktop (Windows, macOS, Linux) and mobile (iOS, Android). The system ingests real-time Telegram signals and YouTube live-stream commentary, routes them through an AI instruction-and-memory layer, then drives a strategy engine capable of back-testing, paper trading and live execution through multiple broker APIs. Core modules that need to be engineered and wired together: • Signal ingestion: high-throughput Telegram reader and live-caption/ASR pipeline for YouTube streams. • AI layer: pluggable provider model with automatic fail-over and the option to “bring your own host” so local/offline models can slot in when cloud APIs such as OpenAI, Google Clou...

    €982 Average bid
    €982 Ortalama Teklif
    45 teklifler

    I run a Shopify store that relies on the Appstle Subscriptions app. Everything works smoothly except for one critical point: the automatic discounts I set up apply perfectly to the customer’s first order, but vanish on every subsequent recurring charge. I need someone who really understands Shopify’s subscription flow and Appstle’s API/webhooks to: • Trace why the discount code (or automatic discount) is dropping off after the initial purchase. • Implement the fix—whether it’s a rules tweak inside Appstle, a Liquid/cart script, or a small piece of custom code—so every renewal reflects the correct, pre-configured discount without manual intervention. • Test at least two renewal cycles in a staging environment and walk me through h...

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

    I have an existing live project and I need help in setting up the WhatsApp Business API keys. Since long time my account is stuck in the "Review in Progress" status (almost 30 days) you dont have to do any integration with backend or anything. on screenshare just need to discuss how to resolve this issue which i am facing with the WhatsApp Business API

    €56 Average bid
    €56 Ortalama Teklif
    62 teklifler

    I manage our university’s Student Information System and need a technically savvy partner to keep it running at peak performance while we expand its capabilities. Day to day, the work ranges from fine-tuning system configuration, maintaining a clean permission hierarchy, and automating routine admin tasks, through to digging into database queries when the system slows down or an integration drops data. You’ll be hands-on with: • System configuration & ongoing management • User account lifecycle, roles, and permissions • Reporting, analytics, and custom queries Current pain points I want resolved quickly: • Intermittent performance slow-downs during high-traffic periods • Data integration failures between the SIS and our LMS/HR platforms ...

    €58146 Average bid
    €58146 Ortalama Teklif
    55 teklifler

    I want to go live as a bold and vibrant women’s-wear destination built on Shopify. The store is not yet themed, so I’ll rely on you to shape the full look and feel, from homepage to checkout, keeping colours, typography and imagery high-energy and fashion-forward. Alongside the build, I need seamless Instagram auto-sync. Each new collection image, every post or story, and the hashtags and captions that drive engagement on Instagram must flow straight into the relevant product pages and gallery sections of the site with no manual intervention. If Meta ever changes an endpoint, I expect the integration to stay stable through best-practice API handling. Because I am based in Vadodara, local collaboration is a plus, but I’m open to remote talent if communication is crisp a...

    €62 Average bid
    €62 Ortalama Teklif
    54 teklifler

    I have between 8,000-10,000 items sitting on my supplier’s website that now need to live on my own Shopify store. Every listing must be migrated exactly as it currently appears—same title, same wording in the description—while also pulling across each product’s images, current price, live availability status, SKU, and relevant tags. You are free to use whatever workflow suits you best: manual entry, CSV-based import, Shopify API, or a reputable bulk-sync app. What matters is that once the job is done I can filter, search, and sell every item in Shopify with the right media, correct pricing, accurate stock level, and clean SKU structure. Deliverables • Complete import of 8,000-10,000 products, fully published and organized in Shopify • All images, pri...

    €16 / hr Average bid
    €16 / hr Ortalama Teklif
    66 teklifler
    Legal US VIN Lookup
    3 gün left
    Onaylı

    I need a reliable partner to perform daily, fully legal VIN lookups on U.S. vehicles. Every VIN I send must return a comprehensive report that merges data from CARFAX, AutoCheck, and the National Motor Vehicle Title Information System (NMVTIS). Mandatory coverage • Vehicle history • Ownership details • Accident reports Beyond those, I’m interested in any additional data points you can lawfully provide—title brands, open recalls, odometer readings, auction images, service records, and more. The richer the dataset, the better. Trial phase I will supply two to three sample VINs first. Send back complete reports so I can verify depth, accuracy, and formatting before we move forward. Ongoing workflow & deliverables • Daily turn-around on new VINs I ...

    €43 / hr Average bid
    €43 / hr Ortalama Teklif
    16 teklifler

    I’m implementing QuoteIQ as our central field service hub and need a professional experienced in QuoteIQ to configure the platform end-to-end, link it to QuickBooks, and reconcile our existing database for seamless functionality. Scope of work: • Activate and customize the three core modules we rely on most—Scheduling & Dispatching, Work Order Management, and Customer Management—tailored to fit our business processes. • Build a scheduling and dispatch board that supports real-time updates, route optimization, and technician tracking. My team must see changes instantly on mobile. • Set up work-order workflows with job-status tracking, accurate time-tracking integrated, and an efficient notification system for both the office team and field crew. • ...

    €405 Average bid
    €405 Ortalama Teklif
    158 teklifler

    I need a reliable way to capture every car listing that appears on Facebook Marketplace across the entire United States and extract the seller’s direct phone number from each ad. The listings change quickly, so I want a fresh pull every 24 hours and the results delivered as a clean CSV file I can drop straight into my CRM. Here’s what the file should include each day: • Listing URL • Ad title exactly as posted • Asking price • City / state shown in the ad • Date and time the ad was scraped • Seller’s name (if visible) • Seller’s phone number in a normalized format The CSV must overwrite the previous day’s file or arrive as a clearly time-stamped new file; either way, I should always know I’m working with...

    €393 Average bid
    €393 Ortalama Teklif
    167 teklifler

    I need a cloud-hosted CRM built from the ground up for a growing laundry franchise. The core priority is robust multi-store franchise management, so every branch can operate independently while still feeding real-time data to head office. Key workflow: • Each store logs in through its own portal to record orders, update statuses, and see today’s targets. • A live sales dashboard rolls those numbers up instantly so I can compare performance across branches from any browser or mobile device. Billing & invoicing must be friction-free. The system should generate fully customizable invoices that reflect our branding and service codes, then trigger automated payment reminders until a balance is cleared. From the central admin console I want the power to: • Add or ...

    €223 Average bid
    €223 Ortalama Teklif
    56 teklifler

    I run a newly formed peptide-focused e-commerce LLC registered in the United States and I’m ready to streamline three critical pieces at once: 1. Integrate PayU as our primary payment gateway directly into the storefront so customers can check out smoothly. 2. Establish the right banking structure to support that processor and protect cash flow. 3. Put a solid bookkeeping workflow in place together with a forward-looking U.S. tax strategy that keeps the business compliant while minimizing liability. For the first item I only need the integration work—API hook-up, secure tokens, test transactions, and a quick hand-off document so my team can maintain it going forward. Configuration, sandbox testing, and any PCI-DSS considerations should be folded into the build. On ...

    €10 / hr Average bid
    €10 / hr Ortalama Teklif
    152 teklifler

    I’m looking for a ready-to-run or custom-built tool that lets me scrape Instagram user profiles on my own machine and pull out one thing only: contact details. Specifically, I need a clean export of any publicly listed or hidden emails and phone numbers from both public and private accounts I feed into the tool. Here’s the workflow I have in mind: • I drop in a list of usernames (CSV or TXT is fine). • The software signs in with my credentials (handling login challenges or two-factor gracefully). • It navigates each profile, extracts any email address or phone number it can locate—whether surfaced on the profile page, within the bio, or via the “email/phone” buttons Instagram shows to logged-in users. • Results come back in a CSV w...

    €114 Average bid
    €114 Ortalama Teklif
    128 teklifler

    Freelancer Enterprise is **Seeking Enterprise Software Owners – Repository Licensing Opportunity** Do you own a **large, proprietary software application** that you've built yourself or with your team? We're looking to connect with software developers, startups, and technology companies interested in licensing their software repositories for technical evaluation and AI research. ### We're looking for repositories that include: * 50,000+ lines of source code * At least 5 meaningful Git commits * At least 5 meaningful Pull Requests (PRs) * Complete, executable application (not just sample code) * Test cases and technical documentation * Enterprise-grade architecture and development history ### Examples of suitable applications: * Enterprise Applications * SaaS Plat...

    €69504 Average bid
    €69504 Ortalama Teklif
    129 teklifler
    Bulk Shopify Product Upload
    2 gün left
    Onaylı

    I have between 8,000-10,000 items sitting on my supplier’s website that now need to live on my own Shopify store. Every listing must be migrated exactly as it currently appears—same title, same wording in the description—while also pulling across each product’s images, current price, live availability status, SKU, and relevant tags. You are free to use whatever workflow suits you best: manual entry, CSV-based import, Shopify API, or a reputable bulk-sync app. What matters is that once the job is done I can filter, search, and sell every item in Shopify with the right media, correct pricing, accurate stock level, and clean SKU structure. Deliverables • Complete import of 8,000-10,000 products, fully published and organized in Shopify • All images, pri...

    €166 Average bid
    €166 Ortalama Teklif
    257 teklifler

    I need a self-hosted script that automatically reads every new Instagram post in my feed (no restrictions to hashtags or accounts) and then leaves a thoughtful comment that ties directly to the caption’s wording. The automation must rely only on code I can run on my own machine or server—no cloud services, commercial schedulers, or other third-party apps. Core logic • Pull each fresh post and extract the full caption text. • Run lightweight text analysis/NLP to understand the main topic or sentiment. • Generate a short, human-sounding reply that feels relevant to that text. • Publish the comment instantly through the official Instagram Graph API or another method that stays within Instagram’s policy limits. Deliverables 1. Fully commented s...

    €13 Average bid
    €13 Ortalama Teklif
    11 teklifler

    I already run a WhatsApp Business account, but it still shows as “unverified.” I need someone who knows the Meta Business Manager flow inside-out to walk me through the remaining steps, review the documents I have prepared, and make sure the green checkmark appears without delays or rejections. Right after the verification is complete, I want the WhatsApp Cloud/API environment configured so I can launch fully automated messaging from our server. That includes generating the API keys, linking the number, setting an initial webhook, and proving that a sample template message can be sent successfully. Please have prior, hands-on experience with recent Meta/WhatsApp policy changes; I don’t want to waste requests or hit rate limits while testing. If you can finish both pie...

    €21 Average bid
    €21 Ortalama Teklif
    72 teklifler

    Overview: This opportunity is supporting a large-scale, multi-year Oracle business transformation for a major utility organization. The company is implementing several Oracle platforms across the enterprise, including Oracle NMS (Network Management System), Customer-to-Meter (C2M), Oracle Field Service, and Oracle Integration Cloud (OIC), with a major go-live scheduled later this year. The team is looking to bring more integration expertise in-house rather than relying on external consulting partners, creating an opportunity for an experienced Oracle Integration Cloud (OIC) Engineer to play a key role in building and supporting enterprise integrations. This is a hands-on engineering position focused on designing, developing, and maintaining integrations between critical utility and opera...

    €612 Average bid
    €612 Ortalama Teklif
    21 teklifler

    My Squareup Hosted Checkout keeps throwing authentication errors and I’m convinced the trouble sits inside the payment-method settings of my panel. I need a fresh pair of eyes to confirm that the correct Client ID and Client Secret from my Square developer dashboard are in place, that the environment (sandbox vs. production) is set properly, and that any required redirect or webhook URLs match what Square expects. You’ll log in, trace the credential flow, adjust anything that’s off, then run a quick test transaction so I can see a clean “approved” response instead of the current auth failure. A short hand-off note explaining what was changed will wrap it up. If you know your way around Squareup APIs, OAuth flows, and hosted checkout settings, this should...

    €19 Average bid
    €19 Ortalama Teklif
    94 teklifler

    We are building a robust, production-grade automated fulfillment and pricing engine for an store. We have already designed the system architecture, business logic, and error handling rules. We need an experienced backend developer to implement the code quickly and cleanly. DO NOT APPLY if you only know standard web scraping (Selenium/BeautifulSoup) or basic scripts. We need a developer who understands asynchronous Python architecture, state machines, API authentication flows, and queue-based order handling. Core System Requirements & Scope Authentication & Session Management: Implement OAuth2/Cognito-based token acquisition (/api/client-credentials & /api/authentication/seller/token). Manage persistent seller sessions with dynamic token refreshing, automated retries, and s...

    €161 Average bid
    €161 Ortalama Teklif
    92 teklifler

    **Job Title:** Senior ERP Product Architect & Business Systems Auditor **Experience Level:** 10+ Years (Enterprise Resource Planning) **Engagement:** Part-Time / Fractional / Strategic Advisory (10–15 hours/week) **Location:** Remote --- About the Role We are building a next-generation, high-density Enterprise Resource Planning (ERP) platform. The application combines universal ERP core modules (Accounting, HRMS & Payroll, Sales/CRM, Production, and Logistics/Route Planning) with highly flexible, industry-specific custom logic (such as dimensional pricing, yield/breakage tracking, and specialized field dispatch). We are seeking a **Senior ERP Product Architect / Systems Auditor** with **over 10 years of deep domain experience** in enterprise software (e.g., SAP, Oracl...

    €866 Average bid
    €866 Ortalama Teklif
    32 teklifler

    The goal is to turn my existing TradingView option-trading signals into fully automated orders on my Zerodha account. I already have a set of indicator-based ideas coded on TradingView; what’s missing is the fine-tuning of the logic and a rock-solid bridge that can fire option trades in real time. Options are the only asset class I plan to trade. Before going live I need the strategy refined, back-tested, and wrapped in solid risk controls—position sizing, dynamic stop-loss, max daily drawdown, and clean exit rules included. I expect the solution to use TradingView webhooks (or a comparable low-latency method) and Zerodha’s Kite Connect API. Python is preferred for the middleware, but I’m flexible if you can justify another stack. Clear logging, error handling, an...

    €95 Average bid
    €95 Ortalama Teklif
    55 teklifler

    I have a custom integration that keeps Total Synergy and Trello in sync through their public REST APIs. Lately, I’ve spotted dates drifting out of alignment, so the immediate objective is to pinpoint where the sync is breaking down – I’m not chasing speed improvements yet, just accuracy. Your task will involve: - Checking that the webhooks are functioning properly based on the required functionality. - Analyzing and ensuring accurate database syncing between Total Synergy and Trello. - Debugging any issues you uncover with explanations provided. This is a one-time fix. However, if your work is excellent and meets expectations, there is an opportunity for another job within the same system involving changes and further debugging. Deliverables: • Ensure all noted di...

    €87 Average bid
    €87 Ortalama Teklif
    157 teklifler

    Customer Portal & Admin Portal Requirements Project Overview Develop a modern, secure, and scalable multi-tenant Customer Portal and Admin Portal for managing Business Phone System (PBX/UCaaS) services. The platform should provide customers with a self-service experience while giving administrators complete control over provisioning, billing, support, and system management. Customer Portal The Customer Portal should allow customers to: Manage Business Phone System (PBX/UCaaS) services. View and manage extensions, users, departments, ring groups, queues, IVRs, voicemail, call routing, and other PBX features. Manage Direct Inward Dial (DID) numbers. Configure call forwarding, caller ID, business hours, time conditions, and other telephony features. Auto-provision IP phones and suppor...

    €2314 Average bid
    €2314 Ortalama Teklif
    61 teklifler
    Bot Python WhatsApp Guías
    1 gün left
    Onaylı

    Necesito un bot escrito en Python que utilice la API de WhatsApp para el envío automático de guías de paquetería a mis clientes. El alcance inicial se centra únicamente en el envío, sin gestión de confirmaciones ni actualizaciones de estado. Flujo deseado 1. Yo descargo las guías en PDF en mi computadora o dispositivo Android. 2. El bot lee cada PDF, extrae los datos clave (número de guía, nombre del destinatario, teléfono, etc.) y construye el mensaje con la plantilla que yo proporcione. 3. Envía el mensaje al número de WhatsApp correspondiente a través de la API oficial. Requisitos técnicos • Python 3.x y librerías comunes de lectura de PDF (por ejemplo, PyPDF2 o pdf...

    €57 Average bid
    €57 Ortalama Teklif
    79 teklifler

    My in-house Chrome extension suddenly refuses to load at all—no icon, no background processes, nothing. I need an experienced extension developer to step in, pinpoint the cause, and restore full functionality. You’ll get access to the current source (manifest v3), the last working build, and a short screen-capture of the failure in Chrome 125. If third-party conflicts or API deprecations are involved, I’d like a brief note so I can avoid repeating the problem on future updates. Deliverables: • Diagnose and document the root cause of the “extension not loading” issue. • Supply corrected code and a compiled .crx or unpacked folder ready for testing. • Confirm the fix works on the latest stable Chrome for Windows and macOS. No UI red...

    €23 Average bid
    €23 Ortalama Teklif
    46 teklifler

    I need a bot that connects to the IQ Option platform and sends real-time trading signals specifically for cryptocurrencies. The core goal is speed and accuracy: as soon as a qualifying setup appears, the bot must push the alert without delay. Scope of work • Build or integrate with the IQ Option API/web interface. • Track chosen crypto pairs continuously, applying proven technical indicators or custom logic we agree on. • Fire signals the moment conditions are met and deliver them instantly (email, Telegram, or another fast channel you recommend). • Include basic configuration so I can adjust pairs, indicator thresholds, and risk parameters without touching code. Key expectations • Millisecond-level data polling or websocket usage to keep signals truly in...

    €95 Average bid
    €95 Ortalama Teklif
    17 teklifler

    We are seeking a US-based Project Manager with experience in justice, municipal court, and e-citation software implementations to lead system integration projects for municipal courts and clerk offices across the United States. The ideal candidate will manage the implementation and integration of Court Management Systems (CMS) with e-citation platforms, serving as the primary point of contact between courts, clerk offices, technical teams, and software vendors. This role requires a strong understanding of court workflows, statutory requirements, and software implementation best practices. Key Responsibilities Lead end-to-end implementation of municipal court and justice software solutions. Coordinate API and FTP integrations between e-citation platforms and Court Management Systems (CMS)...

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

    I’m gearing up for an e-invoicing integration round and need two fully functional sandbox environments: one in Microsoft Dynamics 365 Finance & Operations and one in SAP S/4HANA. Both tenants must stay live for roughly three months with no feature, user-count, or transaction limits so I can run realistic invoice flows end-to-end. Core scope The work revolves around Invoices, Credit Notes, Receipts and the customer management module in each system. I will be posting, voiding, adjusting and exporting documents, then pushing them to an external e-invoice gateway, so every related button, API and report has to be enabled out of the box. What I expect from you • Provision or broker fresh trial/demo tenants for each platform. • Supply admin-level credentials and any c...

    €111 Average bid
    €111 Ortalama Teklif
    82 teklifler

    We already have OTP and transaction templates working through WhatsApp Manager, and now we want to extend this into a marketing/social messaging utility that can handle bulk sends with personalization. Let me lay out a complete scope of work for such a system: Functional Scope 1. Template Management • Fetch approved templates directly from Meta WhatsApp Manager API. • Display available templates (Marketing, Utility, Authentication). • Support text + image templates (header image, body text, footer, CTA buttons). 2. Data Upload & Processing • Upload Excel/CSV file containing: o Customer Name o Phone Number (with country code) o Optional fields (email, city, etc.) • Validate numbers (format, duplicates, opt in compliance). • Map Excel columns to template va...

    €10 / hr Average bid
    €10 / hr Ortalama Teklif
    44 teklifler

    I need a full-stack developer to build a Library Management System (Mobile & Web). Key features required: ​Book Catalog & Inventory: List all books with Title, Author, Category, Shelf Location, Price, and status (Available/Borrowed). ​Search & Filter: Instant search by Book Title, Author Name, Category, or ISBN. ​QR Code Scanning: Scan QR code on a book to instantly view book details and status, or issue/return books. ​Borrowing & Student Tracking: Track Student Name, ID, Issue Date, Due Date, borrowing duration, and overdue days count. ​Fine & Due Management: Automatic fine calculation for late returns and pending dues status per student. ​Admin Dashboard: Overview of total books, active borrowings, overdue alerts, and member management.

    €52 Average bid
    €52 Ortalama Teklif
    33 teklifler

    I need an Android application for our college library management project, and speed is critical—I’d like to see a working build as soon as possible. The heart of the app is a reliable, fast QR / barcode scanner that can read labels on every book in our collection. A successful scan should instantly pull up (or create) a record that stores the book title, author, call number, and any notes we decide to attach later. Beyond scanning, the app must let us: • add or edit book information manually when a code is missing or damaged • record the borrower’s name or student-ID with a single tap • set a due date and have it saved to the same record for quick lookup A clean, minimal interface is enough—functionality matters more than elaborate design. Y...

    €39 Average bid
    €39 Ortalama Teklif
    40 teklifler

    I’m looking for a Laravel developer who can plug a admin dashboard and user dashboard and create a new admin dashboard - simple and sleak, and also installing it on website

    €140 Average bid
    €140 Ortalama Teklif
    415 teklifler

    Sizin için Tavsiye Edilen Makaleler