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I am building a large-scale CRM platform and I'm looking for multiple experienced React/TypeScript developers to work on individual modules in parallel. The project already has an established architecture, coding standards, and development workflow. Rather than building an application from scratch, your responsibility will be implementing and improving isolated CRM modules within an existing codebase. Tech Stack React TypeScript Vite Node.js (Express) PostgreSQL Git (Feature Branch Workflow) How We Work The CRM consists of approximately 40 independent modules. Development is organized into short sprints. Each sprint contains a group of modules that are assigned independently to different developers. Depending on the sprint, you may be responsible for 5–10 modules, allowing multiple developers to work simultaneously without blocking each other. Every task is delivered through: a feature branch pull request code review merge into the main development branch Developers who deliver high-quality work consistently will be invited to future sprints as the project continues to grow. Example Modules Customer Management Opportunity / Pipeline Tracking Task & Activity Management Notes Calendar CRM Dashboard Reporting Notifications Contact History Settings What You'll Do Build new CRM modules Improve existing architecture when necessary Write clean, maintainable TypeScript Add unit/integration tests where appropriate Follow the existing project structure and coding standards Nice to Have Experience with any of the following is a plus: Authentication & Authorization WebSockets / Real-time updates Data Analytics Performance Optimization PostgreSQL optimization GraphQL Cypress or Jest TanStack Query Zustand / Redux When Applying Please include: A GitHub repository or similar React/TypeScript project Your experience with large React applications Weekly availability Time zone Your preferred sprint size Your hourly or fixed-price rate This is not a one-time project. Developers who perform well will receive additional modules in future sprints, making this an ongoing collaboration.
Project ID: 40615869
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194 freelancers are bidding on average $139 USD for this job

Subject: Excited to Collaborate on CRM Platform Project Dear Ahmad Ayaz, I am thrilled about the opportunity to work on the large-scale CRM platform project. With expertise in React, TypeScript, Node.js, and PostgreSQL, I am well-equipped to contribute effectively to this initiative. I appreciate the structured approach to development and focus on modularity within the project. Could you share more about the scalability plans and potential integrations with third-party services? Understanding the long-term vision will help in developing robust modules. Given my background in performance optimization and data analytics, I am keen to know the importance of real-time data synchronization and any specific requirements for reporting and analytics functionalities. By organizing sprints efficiently, we can ensure timely delivery of quality modules. Can you provide insights on scaling the development team and adding new modules within the expected timeline? I am dedicated to delivering clean, maintainable code and improving the architecture as needed. Let's establish a strong foundation for collaboration on this project. Looking forward to contributing to the success of the CRM platform project. Best Regards, Ahmad Ayaz
$225 USD in 5 days
8.9
8.9

Hi, I reviewed your CRM request and I understand the task is to implement and improve isolated CRM modules inside an existing React/TypeScript/Vite codebase. I’ll follow your feature branch workflow with PR and code review, building maintainable TypeScript modules that integrate with GraphQL, Frontend Development, and REST API endpoints, plus PostgreSQL-backed data as your architecture expects. I focus on clean code, tests where appropriate, and smooth sprint delivery so modules don’t block each other. Let’s discuss here now.
$150 USD in 7 days
8.5
8.5

Good to see this project, I will implement your CRM modules (Customer Management, Pipeline Tracking, Reporting) following your feature branch workflow, delivering clean TypeScript with tests through PRs ready for review. On a similar multi-module React/TypeScript CRM, I will set yours up with the same sprint discipline: you get a short update at the end of each day. Questions: 1) Are modules using TanStack Query for server state, or a custom pattern? 2) Do you have a shared component library across the 40 modules already? Share the repo structure and I will confirm my sprint capacity today. Looking forward to potentially working together. Thanks, Kamran
$90 USD in 5 days
8.6
8.6

SURELY, I UNDERSTAND YOUR REQUIREMENTS CLEARLY. I have worked on large React and TypeScript applications with feature-branch workflows, code reviews, and sprint-based development in collaborative teams. I can quickly onboard into your existing architecture, develop isolated CRM modules with clean, maintainable code, optimize performance where needed, write reliable tests, and consistently deliver high-quality pull requests that align with your coding standards and future sprint goals. Thanks!! PARMINDER
$240 USD in 7 days
8.2
8.2

Hi, I will implement your isolated modules using React, TypeScript, and Vite, adhering strictly to your feature branch workflow to ensure clean integration into the CRM platform. I recently optimized a complex dashboard module for high-concurrency PostgreSQL data rendering. Estimated timeline: 5 days Budget: $250 Let's discuss and get started. Ajharul
$140 USD in 7 days
7.8
7.8

⭐⭐⭐⭐⭐ Build Efficient CRM Modules with React/TypeScript for Your Platform ❇️ Hi My Friend, I hope you're doing well. I’ve reviewed your project needs and see you are looking for experienced React/TypeScript developers. You don’t need to look any further; Zohaib is here to help you! My team has successfully completed 50+ similar projects for CRM platforms. I will implement and enhance your existing CRM modules, following your established architecture and coding standards. ➡️ Why Me? I can easily build and improve your CRM modules as I have 5 years of experience in React and TypeScript development. My skills include working with Node.js, PostgreSQL, and Git, ensuring smooth collaboration and code management. I also have a strong grip on Vite and unit testing, which will help maintain high-quality code throughout the project. ➡️ Let's have a quick chat to discuss your project in detail. I can show you samples of my previous work and how I can contribute to your CRM platform. I look forward to our conversation! ➡️ Skills & Experience: ✅ React Development ✅ TypeScript ✅ Node.js (Express) ✅ PostgreSQL ✅ Git (Feature Branch Workflow) ✅ Vite ✅ Unit Testing ✅ Integration Testing ✅ Code Review ✅ Performance Optimization ✅ WebSocket Implementation ✅ Data Analytics Waiting for your response! Best Regards, Zohaib
$150 USD in 2 days
7.9
7.9

Hi, On a recent contract I delivered a MERN stack build with a React and Node front to back, full server deployment included, and the client came back with a 5 star review. The 40 modules in parallel model lives or dies on how strict the shared contracts are. Before I take a first sprint I'd want to see the existing type definitions and the API layer, so my PRs don't drift from your standards. One question: are module boundaries enforced by types and shared interfaces, or is that still loose between developers? My React and TypeScript work sits on the same Node and Express and PostgreSQL stack you're using. I'm at 5 stars with preferred freelancer status here, so starting on one small module milestone keeps the risk on me until the code review passes. Which module would you hand out first? Adil
$167.15 USD in 7 days
7.5
7.5

Hello, We'd be excited to contribute to your CRM platform as a long-term development partner. At Doomshell Software Pvt Ltd, our team has extensive experience building scalable React and TypeScript applications using modern development workflows and enterprise coding standards. Our expertise includes: • React, TypeScript, Vite, Node.js (Express), and PostgreSQL • Feature branch workflows, pull requests, and collaborative code reviews • CRM modules, REST APIs, authentication, dashboards, reporting, and real-time features • Performance optimization, clean architecture, and maintainable code • Unit and integration testing using modern best practices We're comfortable working in sprint-based environments, quickly adapting to established architectures, and delivering high-quality modules independently. We can dedicate experienced developers for ongoing sprints and long-term collaboration. We'd be happy to share relevant work and discuss how we can support your development roadmap. Best regards,
$140 USD in 7 days
7.9
7.9

Hi, I’ve read your CRM module workflow carefully, and I’m confident I can contribute clean, scalable work within your existing React/TypeScript architecture. Since the platform is already structured around feature branches, pull requests, and short sprints, I can step in smoothly and deliver isolated modules without blocking parallel development. I have strong experience with Website Design and modern web development, and I can support module implementation across Node.js-backed CRM flows while working comfortably with PostgreSQL-driven data structures. I focus on maintainable code, consistent standards, responsive UI behavior, and reliable handoff through review-ready commits. I can start quickly, align with your sprint process, and deliver high-quality modules within 14 days for the initial scope. Please share the first sprint details and repository expectations, and I’ll outline the best execution approach. Could you kindly share which 5–10 modules are planned for the first sprint and their completion criteria? Best regards, KANIKA
$250 USD in 14 days
7.1
7.1

Hi! My name is Marjan and I'm here to offer you my services as a skilled applicant with over a decade of experience working on Freelancer.com. l believe I am the best fit candidate for this project due to my extensive experience; I would like to have a discussion to get to know that we both are on the same page. Once the scope will be locked, I will start working on it right away.
$140 USD in 7 days
7.0
7.0

Hello, My recent work includes large React and TypeScript codebases with Vite, sprint delivery, and clean module boundaries. I can handle CRM modules such as customer management, dashboards, reporting, and notifications while keeping Website Design consistent with your existing standards. For each sprint, I will work from a feature branch, follow your pull request and code review flow, and write maintainable TypeScript with suitable tests. I will connect module logic through Node.js and PostgreSQL carefully, including query improvements where needed for performance. Best regards, Teo
$200 USD in 2 days
6.7
6.7

As a seasoned Full-Stack Developer, I bring with me an extensive range of skills and expertise that are perfectly aligned with your project requirements. With a strong focus on performance and clean architecture, I built scalable, high-quality software - exactly what you need for your large-scale CRM platform. What sets me apart is my substantial experience in React, TypeScript, Node.js, and PostgreSQL – your core tech stack. I assure you that I'm well-versed with these technologies and can work efficiently on isolated CRM modules within an existing codebase. My proficiency extends to Git's Feature Branch Workflow and other tools such as Express and Vite that you're utilizing in the project. You'll find great value in my adeptness at delivering through feature branches, pull requests, code reviews, and merges into the main development branch – forming a seamless part of your development workflow. Additionally, I have showcased strong problem-solving abilities and optimization strategies in my previous projects – skills that will definitely come in handy when working on task such as performance optimization or PostgreSQL optimization for your CRM. Lastly, my commitment to professionalism is reflected in my clear communication throughout every stage of the project; keeping my clients updated and offering any clarifications that are needed. Given the chance, I assure you 100% dedication towards delivering elevated results to your platform. Let's discuss further!
$50 USD in 3 days
7.2
7.2

Hello, I have 10 years of experience developing scalable CRM, ERP, and SaaS platforms using React.js, TypeScript, Node.js, PostgreSQL, and REST APIs. I have worked extensively on large, modular applications where multiple developers collaborate through feature branches, code reviews, and structured development workflows. My approach is to deliver well-structured CRM modules that integrate seamlessly with your existing architecture while maintaining clean, maintainable TypeScript code and consistent coding standards. I also have experience building CRM features such as customer management, task workflows, dashboards, reporting, and role-based access within production-ready business applications. I would be glad to discuss your sprint workflow and how I can contribute to the ongoing development of your CRM platform. Best regards
$140 USD in 7 days
7.0
7.0

I am an experienced TypeScript developer specializing in building scalable enterprise applications with Vite and PostgreSQL. I have extensive experience architecting CRM systems that require high performance and complex data relationships. My background includes building robust React frontends powered by Node. js backends using both GraphQL and REST APIs. I am proficient in optimizing PostgreSQL queries for large datasets and ensuring seamless integration between the frontend and database. Having worked on several large scale platforms, I understand the importance of type safety and modular architecture in long term maintenance. I can contribute immediately to your CRM platform project by delivering clean, documented code and efficient data structures.
$250 USD in 7 days
6.3
6.3

I’m an experienced React/TypeScript developer with a strong background in large, modular applications and existing codebases. I can take ownership of 5–10 CRM modules per sprint, follow your feature-branch and pull-request workflow, write maintainable code, and add tests where needed. I’m comfortable with React, TypeScript, Vite, Express, PostgreSQL, TanStack Query, Zustand/Redux, authentication, real-time features, and performance optimization. I’m available for ongoing work and can share relevant GitHub examples, availability, timezone, and rate privately.
$250 USD in 7 days
6.4
6.4

Hi, I understand you need a React/TypeScript developer who can integrate smoothly into an existing CRM with strict coding standards and parallel development. I’ve worked on similar large React/TypeScript projects where modules were built in isolation, like a customer portal with Zustand state management—though the first version needed some tweaks to the API layer. I’d approach this by sticking to the existing architecture while keeping modules decoupled, so new features don’t create hidden dependencies. The biggest improvement will come from writing tests that match your review process, so PRs pass smoothly. I’ll work in small, reviewable chunks and keep changes backward-compatible to avoid surprises in shared code. This helps maintain stability while scaling features quickly. Happy to discuss how I can fit into your workflow—I can start right now. Thanks, Denis
$30 USD in 3 days
6.4
6.4

Hi, Working within your existing CRM architecture to build and improve isolated modules like customer management, pipeline tracking, or notifications, while following your sprint workflow and coding standards, fits well with the structured collaboration you are looking for. A few quick questions before applying properly: Which modules are planned for the very first sprint, so focus areas can be clear from the start? Should feature branches follow a specific naming convention already used in the current codebase? Is TanStack Query or Redux already chosen for state management across modules? Similar large scale React and TypeScript CRM projects have been worked on before, using PostgreSQL, Express, and Git feature branch workflows, always focusing on clean maintainable code, proper testing, and smooth collaboration across multiple developers working in parallel sprints. Would love to share a GitHub repository and chat further about availability. Best regards Farhin B
$110 USD in 3 days
6.7
6.7

Hello! We can provide an external team to handle your CRM modules in parallel. 1. Are you open to working with an external contractor or team for these tasks? 2. Which modules should be covered first in the next sprint? — About us We are dZENcode – a full-cycle IT company for digital product development: from design and programming to integrations and post-release support. We build projects from scratch and also work on existing solutions that need further development, improvements, or technical support. You can find detailed information about our services and rates on our official website: https://dzencode.com. Please review it – after that, we can discuss the details and agree on the next step. ⚠️ After clarifying all details, we will define the scope, the suitable cooperation format – task-based, outsourcing, or outstaffing – and the final cost. Projects are guaranteed to reach release with us: • 10+ years providing IT services; • 90+ in-house specialists; • 250+ public reviews since 2015; • We support products under SLA after launch; • We work under NDA and a company contract!
$140 USD in 7 days
6.7
6.7

Hi There! I specialize in React and TypeScript development with 9+ years of experience building scalable CRM and enterprise applications. I can quickly contribute to your existing architecture, delivering clean, well-tested modules through your feature branch and code review workflow. Here's how I can help: 1. Build and enhance CRM modules following your coding standards. 2. Write maintainable TypeScript with reliable tests. 3. Optimize performance and collaborate efficiently across sprints. Which modules are planned for the first sprint and what is the expected sprint duration?
$140 USD in 7 days
6.0
6.0

Hello There! I'm Md. Toriqul Islam, and I'm excited to partner with you. I can dive into your project immediately. With over 10 years of experience in React, TypeScript, and full stack development, I build scalable, maintainable applications following established coding standards and Git workflows. I understand you need experienced developers to implement CRM modules within an existing architecture using feature branches, pull requests, and code reviews. I have experience working on large React applications, developing independent modules, optimizing performance, and delivering clean, well tested code. I have rich experience in React, TypeScript, Vite, Node.js, Express, PostgreSQL, Git, TanStack Query, Zustand, Jest, and REST APIs. I'm ready to start immediately and would be happy to discuss sprint planning, availability, and long term collaboration. Looking forward to hearing from you. Best regards, Md. Toriqul Islam
$65 USD in 3 days
6.0
6.0

Izmir, Turkey
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