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Full-Stack Developer — Looking to Create a CRM that will be linked to our Mobile App. Developer must be willing to have a meeting to discuss the project prior to hiring. IF YOU CANT HAVE A MEETING TO DISCUSS PLEASE DO NOT APPLY! I am looking for an experienced Convex + React/[login to view URL] full-stack developer to migrate an existing production software application currently built/hosted through [login to view URL] into an independent development and hosting environment that I fully control. The goal is to remove our dependency on Hercules while preserving the existing application's functionality, users, database, integrations, and overall design. The final system needs to be fully managed through GitHub, allowing our team to make updates, deploy new versions, and maintain the software without being locked into Hercules. What You Will Be Responsible For 1. Audit the Existing Hercules Application Review the existing Hercules application and architecture. Identify the frontend framework, backend architecture, Convex configuration, APIs, integrations, authentication, database structure, file storage, and Hercules-specific dependencies. Determine the best architecture for moving the application to independent infrastructure. Provide a migration plan before major changes are made. 2. Migrate the Application Export and migrate the existing source code. Migrate the Convex backend/functions. Migrate the database and production data. Migrate uploaded files/images where applicable. Preserve existing users and application functionality. Reconfigure environment variables and secrets. Remove or replace Hercules-specific dependencies. Maintain the current UI/UX unless changes are specifically requested. 3. Set Up GitHub-Based Development The final project must be stored in a GitHub repository owned by me/my company. I want a professional development workflow such as: Feature Branch → Pull Request → Testing → Merge → Production Deployment The developer should configure GitHub properly for ongoing development and deployment. 4. Set Up Independent Hosting I want the application deployed to hosting infrastructure that I control. I am open to recommendations for the hosting architecture, including options such as: Vercel Cloudflare AWS DigitalOcean Other suitable cloud infrastructure For Convex, I am open to either: Convex Cloud, or Self-hosted Convex The developer should recommend the best option based on scalability, reliability, security, cost, and maintenance. 5. CI/CD Deployment Set up automated deployment through GitHub. For example: GitHub → Build/Test → Deploy to Staging → Production I want to be able to update the software in the future without needing Hercules. The system should support: Production deployments Staging/testing environment Environment variables/secrets Build verification Deployment logs Rollback capability Git-based version control 6. Testing Before the migration is considered complete, the developer must thoroughly test the application, including: User registration/login Existing user accounts Database functionality Admin functionality User dashboards Forms APIs Payments Notifications File/image uploads Mobile/PWA functionality Third-party integrations Convex functions Authentication Any existing automated processes The goal is for the migrated application to function the same as the current production application. Important Ownership Requirement I must retain ownership and administrative access to the entire system. The following must be under my/company's accounts: GitHub repository Hosting account Convex account/project Domain/DNS Cloud infrastructure Database API accounts Third-party integrations Deployment credentials I do not want the application dependent on a developer's personal accounts. The developer may have access for development purposes, but the company must remain the owner of the infrastructure and source code. Required Experience You should have strong hands-on experience with: Convex React [login to view URL] TypeScript JavaScript GitHub Git/GitHub workflows CI/CD Cloud hosting REST APIs Authentication systems Database migrations Production SaaS applications Environment variables/secrets Docker Cloud infrastructure Strongly Preferred Experience with: [login to view URL] Hercules application exports/migrations Convex production deployments Self-hosted Convex Vercel AWS Cloudflare GitHub Actions PWA applications Payment integrations Large-scale SaaS applications Important: Hercules Experience If you have previously migrated an application from [login to view URL], please explain exactly what you migrated and what infrastructure you moved it to. If you have not worked with Hercules before, you should still apply if you have extensive experience migrating production applications from proprietary/no-code or hosted platforms into independent infrastructure. Deliverables At completion, I expect: Fully migrated application GitHub repository Production deployment Staging/testing environment Migrated database Migrated files/assets Working Convex backend Working authentication Working APIs/integrations CI/CD deployment pipeline Environment configuration Production testing Database backup procedure Deployment documentation Rollback procedure Documentation explaining how to make future updates
Project ID: 40725846
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Hi, This is mainly a controlled platform migration, not just a rebuild. The biggest risk is losing parity with the current CRM while moving away from Hercules, especially around Convex, auth, data, files, and any live integrations. I’d start by mapping the existing app flow and dependencies so the migration plan protects users, records, and deployment access from day one. My first focus would be a full audit of the current production setup, then moving the code and data into accounts owned by your company. After that, I’d set up the GitHub workflow, staging/production pipeline, and verify the core CRM flows end to end: login, dashboards, forms, APIs, uploads, payments, notifications, and mobile/PWA behavior. Initial work focus: - Audit Hercules dependencies - Confirm Convex architecture - Migrate code and data - Set up GitHub workflow - Configure staging and production deploys One quick question: do you already have access to the current Hercules export and Convex project ownership, or is part of the handover still needed? Team overview: [login to view URL] Can review this through Freelancer chat/video call, 11 AM–8 PM IST, if needed. Regards, Ghanu & Samir KESHAV INFOTECH
$8 USD in 25 days
9.4
9.4
238 freelancers are bidding on average $15 USD/hour for this job

Hello, We carefully studied the description of your project and we can confirm that we understand your needs and are also interested in your project. Our team has the necessary resources to start your project as soon as possible and complete it in a very short time. We are 25 years in this business and our technical specialists have strong experience in Mobile App Development, React.js, Full Stack Development, React Native, React.js Framework, Ionic React and other technologies relevant to your project. Please, review our profile https://www.freelancer.com/u/tangramua where you can find detailed information about our company, our portfolio, and the client's recent reviews. Please contact us via Freelancer Chat to discuss your project in details. Best regards, Sales department Tangram Canada Inc.
$20 USD in 5 days
8.2
8.2

Hey there! I see you’re looking to migrate your CRM application and complete the mobile app. Your main goal seems to be creating a seamless integration between the CRM and the mobile app, which is crucial for user experience. I noticed you’re seeking a full-stack developer with expertise in React.js and mobile app development. Could you clarify the specific functionalities you envision for the CRM? Also, are there any existing platforms or tools you’re currently using that you’d like to integrate or migrate from? To help ensure a smooth transition, I suggest breaking the project into phases: starting with the CRM core functionalities, then developing the mobile app, and finally linking the two. This approach can help manage risks and ensure alignment with your goals. I have experience with similar projects, including a regional tutoring platform, an internal CRM for a property agency, and a React Native field-reporting app. Looking forward to your thoughts!
$15 USD in 30 days
6.6
6.6

Hello Sir, I have already worked on similar types of website and software development projects and I am confident that I can successfully handle your project. I am a full-time freelancer with **17+ years of experience** in web development, software development, automation, and API integrations. My expertise includes: * Android app development * ASP.NET C# web and software development * Python automation and web scraping (Amazon, Instagram, Facebook, Google Maps, LinkedIn, Telegram, and other custom scraping solutions) * JavaScript, jQuery, AJAX, Bootstrap, HTML5 * Microsoft SQL Server database development * Payment gateway integration * SMS, Email, Banking, Financial, and Insurance API integration * Custom automation bots and workflow automation software I focus on delivering **high-quality, scalable, and reliable solutions** with clean code and long-term support. Please contact me in private chat so we can discuss your requirements in detail. I can also show you a **demo of similar projects** I have completed. Looking forward to working with you. Thanks & Regards
$15 USD in 2 days
5.7
5.7

Hello, I hope this message finds you well. I have thoroughly reviewed the project requirements for migrating your CRM application and completing the mobile app. With my expertise in Mobile App Development, React.js, and Full Stack Development, I am confident in delivering the desired outcome. My approach involves a structured confirmation of requirements, meticulous planning, clean implementation, rigorous testing, and transparent milestone-based progress updates. I prioritize understanding the real business objectives behind the project to ensure long-term success. You can view examples of my previous work in my portfolio: ⭐⭐ https://www.freelancer.com/u/CodeAnchors ⭐⭐ To ensure a smooth transition, could you please clarify your top priority or key business goal for this project? I am looking forward to discussing the project further in an open chat to finalize the scope seamlessly. Best regards, Muhammad Anas Khan
$15 USD in 40 days
5.8
5.8

Hercules lock-in usually bites at the Convex deploy key and auth config, so the audit starts there before any code moves. I'd export the Convex schema and functions, stand up your own Convex project, then run a data migration with a read-only dry run first so we compare document counts and a few user records before cutting over. File storage IDs are the quiet risk: Convex storage IDs don't survive a project move, so uploaded images need re-upload plus a reference rewrite, and I'd script that rather than do it by hand. GitHub Actions with a preview deploy per pull request and a separate staging Convex deployment gives you the branch, PR, test, merge flow, with rollback as a redeploy of the previous commit. Everything gets created in your accounts from day one (GitHub org, Convex, Vercel, DNS), and I'd hand over written docs for updates, backups and rollback so your team isn't tied to me either. Yes to a meeting before hiring, through Freelancer chat once we connect there. First milestone can be the audit and written migration plan, about 3 days after we start, released only when you've read it and agree with the plan. Can you tell me roughly how many users and what auth the app uses now (Convex Auth, Clerk, or something else)?
$20 USD in 40 days
5.6
5.6

Hi mate, I have extensive experience with React, Node.js, PWA applications, cloud deployments, and production migrations. I’d be happy to have a meeting before hiring to review the Hercules application and discuss the migration plan. Questions: 1. Do you currently have access to the Hercules source/export and Convex production environment? 2. Do you prefer Convex Cloud or self-hosted Convex for the new infrastructure? Proposed Solution & Approach: I recommend first auditing the existing Hercules architecture, dependencies, Convex backend, database, authentication, integrations, and file storage. Then I’ll migrate the application to GitHub with a professional branch/PR workflow, configure independent hosting, staging, CI/CD, secrets, backups, testing, and rollback. The migration will preserve existing users, data, functionality, and UI/UX while removing Hercules dependencies. Portfolio: facesconsent.com- React, Node.js Full Stack mmccgroup.com- PWA About Me: I'm Tejash J, a full-stack developer experienced in React, Node.js, PWA, APIs, cloud infrastructure, authentication, and production applications. I focus on secure, scalable deployments and clean Git-based development workflows. Timeline & Budget: Once we discuss the existing application and scope, I’ll provide a fixed estimate and timeline. Let’s build something great together. Best regards, Tejash J
$12 USD in 40 days
5.8
5.8

From what I've understood, you need to move an existing production CRM away from Hercules into infrastructure your company fully controls, while preserving users, data, functionality, integrations and the existing UI, and completing the connected mobile experience. I can start with a full audit of the current application, map the frontend/backend/data dependencies, then migrate the application and Convex environment through staging before production. I’ll also set up GitHub-based development, CI/CD, backups, rollback and deployment documentation so your team can maintain it independently. A few important questions: * Do you already have an export/source package from the current Hercules application? * Is the existing mobile app partially completed, and which workflows are still outstanding? * Do you want to keep Convex Cloud or are you considering self-hosted Convex? * Which third-party integrations and payment flows are currently critical to production? * Are there any existing authentication or user-account constraints that must remain unchanged? I’m available for the required meeting before hiring and can walk through the migration approach, risks and proposed staging-to-production process with you. Please note: The budget and timeline in my bid are placeholders. Best Regards, Sagar
$12 USD in 40 days
5.2
5.2

Having worked on multiple complex projects leveraging Convex in the past, I possess the knowledge and technical experience to perform detailed audits of existing applications, identify dependencies, and ensure seamless migrations while preserving data integrity. My main priority is to aid you in becoming fully independent and self-sufficient, so I commit to delivering a fully managed system through GitHub that facilitates easy updates and deployment by all team members. In addition to migration and management, my expertise also aligns with your requirements of setting up GitHub-based development and independent hosting as well as implementing continuous integration/continuous delivery (CI/CD) deployment. I have hands-on experience with various hosting architectures including Vercel, Cloudflare, AWS and DigitalOcean and would recommend an option based on factors like scalability, reliability, security, cost, and maintenance. Using my comprehensive testing plans encompassing user registration/logins, existing user accounts maintenance of database functionality, admin functionality among others. Lastly, but most importantly for me as well is your stated importance on maintaining ownership. Your project will be under your purview with my access limited solely to the development purposes. If automation that removes manual intervention and minimizes risks/errors is what you're looking for while migrating your CRM App & completing the Mobile App then let's hop into a meeting!
$15 USD in 40 days
4.6
4.6

Hi there, The moment I read "Migrate CRM Application and complete Mobile App", I knew it was a strong match for exactly what we do best. What stood out to me is how clearly you’ve described what you want — and clarity like that is where we deliver our very best work. From your brief I can see this involves react, frontend, backend — all areas we handle in-house. We specialise in Mobile App Development, React.js, Full Stack Development, React Native, which lines up directly with what you need. How we'd approach it: - Map out the scope, pages and data models up front - Build the frontend and backend with clean, scalable code - Test across devices and browsers, then deploy - Hand over with documentation and post-launch support I also noted you don’t need being locked into Hercules — that’s clear, and I’ll keep the work clean and strictly on-brief. Happy to work hourly with transparent time tracking and regular check-ins. I’ll fold in your feedback fast and keep refining until the result feels exactly right to you. Happy to jump on a quick chat to walk through scope and timelines whenever suits you. Best regards, FreeLancers360 Let’s connect in chat and get started — message me anytime and I’ll reply right away!
$8 USD in 7 days
4.2
4.2

Hi, there. I understand this is more than a simple code transfer. The goal is to move a production CRM away from Hercules while keeping the existing users, data, integrations, Convex backend and application behavior intact, then put the whole system under your company’s ownership. I’d begin with a full audit of the current Hercules application and its dependencies, then map the migration before touching production. From there I’d move the source, Convex functions, database, files and environment configuration into your GitHub and chosen infrastructure, with separate staging and production environments. I’d also set up the GitHub workflow and CI/CD pipeline with testing, deployment logs and rollback support. Before handoff, I’d test authentication, dashboards, APIs, payments, notifications, uploads and mobile/PWA functionality against the existing system. I’m also available for the required meeting before hiring so we can review the current setup and migration plan together. Looking forward to work with you. Thanks Fernando
$12 USD in 40 days
3.7
3.7

Hi, I have read your requirements very well and understand that you need someone who can code Shopify and frontend pages quickly, efficiently, and with strong attention to detail. I have hands-on experience with Shopify, HTML, CSS, JavaScript, responsive layouts, and website optimization, and I’m comfortable handling multiple pages/jobs with fast turnaround. I’m really excited to work with you and make your experience better in the digital world. I can focus on clean code, pixel-accurate implementation, mobile responsiveness, and timely delivery. A few questions: Will you provide the designs/Figma or should I build from references? How many pages do you usually assign per job? Do you need ongoing development support? Connect on a chat to discuss well. Let's connect; waiting for your response. Best regards, Arshiya
$12 USD in 40 days
3.4
3.4

Hi, Migrating your CRM while finishing the mobile app fails if web and React Native drift on the same contacts, deals, and dashboards. I will migrate the CRM on React.js with a shared API layer, then complete the React Native app against those endpoints so both stay in sync. I can deliver within your $8 to $15 budget across clear milestones. Message me to get started. P.S. Your brief lists both React Native and Ionic React. I will confirm which mobile path you want before touching screens.
$8 USD in 40 days
2.6
2.6

Hello Dear, I'm Md Ruhul Ajom, a Full-Stack Web & Mobile App Developer with over 10 years of professional experience, and I'm excited about the opportunity to work with you. I can start your project immediately and am committed to delivering high-quality results. I have extensive experience in web and mobile application development, custom software solutions, API integration, database design, performance optimization, and bug fixing. My expertise includes React, Vue.js, Laravel, PHP, Python, Automation, Twilio, REST API, WordPress, JavaScript, React Native, MySQL, REST APIs, Git, Docker, Linux, SEO, eCommerce, and Shopify I understand you're looking for a reliable developer to build a secure, scalable, and user-friendly solution that meets your business needs. I prioritize clean code, timely delivery, and clear communication throughout the project. I'm ready to discuss your requirements and help bring your vision to life. Best regards, Md Ruhul Ajom
$12 USD in 40 days
4.9
4.9

Hi, The core challenge is moving your production CRM from a managed platform into infrastructure you control without breaking functionality or losing data. That's straightforward in theory but requires careful sequencing in practice. My approach: audit the Hercules export first—how Convex functions are structured, what custom logic lives in backend versus frontend, and which integrations depend on Hercules-specific features. Then I'd recommend Vercel for the frontend and Convex Cloud for the backend (simpler than self-hosting, better for your team's maintenance), migrate the database and files in staging before touching production. The main risk is authentication and user session handling during cutover. I'd run both systems in parallel for a few days, migrate users incrementally, and keep rollback capability. Testing covers all flows—registration, payments, file uploads, integrations—against real production data in staging first. For CI/CD, I'd set up GitHub Actions to run tests on every PR, deploy to staging automatically, and require manual approval for production. This gives your team control and visibility without needing me for future deploys. All infrastructure, credentials, and repositories stay under your accounts from day one. I'm available to discuss the project and timeline. Let me know when works for a call. Thanks, Felix.
$15 USD in 40 days
0.0
0.0

I've migrated production apps from Hercules to independent infrastructure before, so this is right in my wheelhouse. I'll audit the existing Hercules setup, document the architecture, and plan the migration. Then I'll export the code, migrate the Convex backend and database, and set up GitHub with feature branches, PRs, and automated deployments. For hosting, I'll recommend Vercel for the frontend and Convex Cloud for the backend, or self-hosted Convex if needed. The CI/CD pipeline will handle builds, staging deploys, and production rollouts with rollback capability. I'll validate all functionality including user flows, payments, and integrations before handing over full ownership. I can start immediately. Thanks, Andrii.
$11.50 USD in 40 days
2.9
2.9

Hi, I went through your project details and understand what you're looking to achieve. I'd be interested in working with you on this. Based on the requirements you've shared, I can handle the project from start to completion while keeping the work aligned with your expectations, timeline, and desired outcome. My approach is straightforward: first, I'll make sure the requirements and expected deliverables are clear. Then I'll complete the work in structured stages, share progress along the way, incorporate your feedback, and deliver the final work after everything has been reviewed. Before we begin, I have a couple of questions about your requirements that will help me understand the scope more accurately. Feel free to message me so we can discuss the details and determine the best way to move forward. Best regards, Anum
$12 USD in 40 days
0.0
0.0

Hi, I am available for the pre-hire meeting, so let us set a time. Migrating your Hercules app to infrastructure you fully own, with GitHub workflows and CI/CD, is the goal. I have not worked with Hercules specifically, so I would rather say that than claim it, but I have migrated production apps off proprietary platforms, and the pattern is familiar: audit the code and Convex functions, export the database and files, then rebuild the deployment around your own accounts. I would start with the audit and a written migration plan before touching anything, since your users and payment integrations make this a careful move rather than a clean slate. Everything ends up under your GitHub, hosting, and Convex accounts, with staging, rollback, and documentation included. Confident I can deliver high quality results within your deadline if awarded. Talk soon.
$12 USD in 40 days
0.0
0.0

Hi I'd handle this as a controlled production migration: first map exactly what Hercules currently owns or abstracts, then move the code, Convex data/functions, files, authentication and integrations into infrastructure your company fully controls. Before cutover, I'll reproduce the current application in staging and verify existing users, CRM workflows, payments, uploads, notifications, APIs and mobile/PWA behavior there. GitHub will become the source of truth with feature branches, PRs, build/test checks, staging deployment and a controlled production release with rollback available. I wouldn't lock in Vercel vs AWS or Convex Cloud vs self-hosted Convex before the audit—the right choice should reflect your actual workload, maintenance tolerance and existing dependencies. All repositories, hosting, Convex projects, credentials and deployment access will remain under your company's accounts, so you're not replacing Hercules with another developer dependency. I'm happy to have the required meeting before hiring. One thing I'd like to clarify there: is the current mobile client React Native/Ionic/PWA, and what specifically remains unfinished? Thanks, Belal
$12 USD in 40 days
0.0
0.0

I understand your goals and will deliver clear work on time while keeping you updated. With over 12 years of experience in Digital Marketing, SEO, Google Ads, AEO, GEO, Web Development and AI visibility, I’m Noman. I’ve completed 100+ Digital Marketing, SEO, AEO and GEO projects, helping businesses improve online visibility, attract qualified leads and increase conversions. I have also developed 500+ WordPress/WooCommerce websites, 100+ Wix websites, 100+ Shopify stores and applications, 50+ Squarespace websites, and integrated 100+ Stripe payment solutions. You can visit my profile to check my latest work and recent reviews. Looking forward to working with you, connect in chat. Thank you, Noman
$8 USD in 40 days
0.0
0.0

As a highly experienced Full Stack Developer with an emphasis on Laravel, PHP, and Python and an impressive 14+ year career in the industry, I am ideally positioned to drive your project migrating the CRM app and completing the mobile app. My extensive portfolio brings together the necessary skills to handle both frontend and backend tasks on React.js and Next.js. Your requirements for migrating the application from Hercules to an independent environment is well within my expertise. I have a seasoned sense of understanding for other people's work and can navigate confidently around various interpretive sources to create comprehensive documentation before executing a major change. Having this plan will ensure that your existing users' data, functions, design, API's, UX/UI, integrations are all effectively migrated. Finally, my self-assuredness using GitHub for version control including deployment, my familiarity with hosting infrastructure including options like Vercel, Cloudflare AWS, etc makes me skilled in setting up a professional development workflow in line with your company. I appreciate your appetite for ownership as I've always worked to foster such relationships where clients always have control over everything even when it is stored in another person's hands.
$10 USD in 40 days
0.0
0.0

Jacksonville, United States
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€750-1500 EUR
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₹37500-75000 INR
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₹12500-37500 INR
$250-750 USD
$250-750 USD
$30-250 USD
$250-750 USD
₹750-1250 INR / hour
$3000-5000 AUD
₹600-1500 INR
₹37500-75000 INR
₹750-1250 INR / hour
₹5000-12000 INR
₹1500-12500 INR
₹12500-37500 INR
₹12500-37500 INR
$30-250 USD