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I need a skilled React developer to jump into my existing code-base and complete a new feature from concept to merge-ready pull request. The exact area—whether state management, hooks, or a UI component—will be clarified as soon as you come aboard, but you should be comfortable working across a typical modern stack that includes React 18, functional components, and JSX/TSX. Here’s how I picture the collaboration: • First, you review the current repository, ask any clarifying questions, and outline a concise plan for the feature. • Next, you implement the solution in clean, well-commented code, following our linting rules and component structure. • Finally, you supply a PR with passing unit tests and a short hand-off note so I can verify, merge, and deploy with confidence. Good communication and the ability to explain your decisions are important to me—I want to understand the trade-offs you make along the way. If you’ve worked with performance optimisation, advanced hooks, or complex component lifecycles before, let me know; those skills often come in handy here. Deliverables: a functional, tested React feature integrated into the existing repository and ready for production.
Project ID: 40637752
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94 freelancers are bidding on average ₹23,037 INR for this job

Hi there, I will review your existing repository, outline a clear plan, and deliver clean, well-commented React 18 / TypeScript code adhering strictly to your component structure and linting standards. I will provide a merge-ready pull request with passing unit tests and a clear hand-off note to ensure a seamless integration and deployment process. Best regards, Nikhil
₹13,000 INR in 3 days
6.3
6.3

Your feature will fail in production if the component re-renders trigger cascading state updates that weren't caught in local testing. I've debugged this exact scenario in React 18 apps where useEffect dependencies were incomplete. Quick questions - are you using Context API or a state library like Redux/Zustand for cross-component state? And what's your current test coverage percentage so I know where to focus unit tests? Here is the architectural approach: - REACT 18 HOOKS: Implement the feature using useMemo and useCallback to prevent unnecessary re-renders that degrade performance under load. - UNIT TESTING: Write Jest tests covering edge cases and integration points, ensuring your CI pipeline catches regressions before merge. - TECHNICAL DOCUMENTATION: Deliver inline comments explaining architectural decisions plus a PR summary documenting trade-offs and rollback steps. I've built production-ready React features for 8+ SaaS products where performance and maintainability were non-negotiable. Let's schedule a 15-minute call to review your repo structure before I start coding.
₹22,500 INR in 7 days
7.1
7.1

Hi, I will jump into your React 18 repo and ship the new feature as a merge-ready PR with passing unit tests. I'll start by reading the code, matching your component structure and lint rules, then share a short plan before writing anything. You will receive: A concise feature plan for your approval Commented React code in your style A PR with unit tests and hand-off note I understand you want to follow the trade-offs, so I'll explain each decision in the PR. First draft ready in 3-4 days. 1) Is the codebase TSX or JSX, and which test runner do you use? Best regards, Shayan
₹13,750 INR in 9 days
5.3
5.3

As a seasoned Full Stack Developer with a specific focus on Frontend Development and JavaScript, I'm poised to join your React team and hit the ground running. Over my 8+ years of experience, I've successfully delivered over 200 projects, which demonstrates my aptitude for understanding and integrating with existing code bases. Open communication is integral to my work ethic; I ensure that you're informed about crucial decisions while maintaining high standards of 'clean-coding'. Alongside passing unit tests and thorough documentation for easy hand-off, you can expect a productive collaboration and reliable results from me. My extensive experience improving performance optimization and handling complex lifecycles will undoubtedly benefit your project. Ready to get started? Let's combine my technical skills, proven track record in delivering scalable solutions, and your project goals to build something amazing. I look forward to exploring how our collaboration can elevate your existing repository.
₹24,999 INR in 7 days
5.1
5.1

As an accomplished React developer with an extensive background in the MERN stack, I am well-positioned to take on your project. I have worked on numerous tasks similar to this one, where I join existing code-bases and successfully complete features following best practices. I'll kickstart our collaboration by reviewing your current repository carefully and presenting a clear outline for the feature at hand. The transparency and open communication that you prioritize align perfectly with my work ethic - I ensure comprehensive explanations behind my coding decisions to keep us on the same page. My expertise goes beyond just writing functional code; I bring to the table a solid understanding of state management, advanced hooks, component lifecycles, and performance optimization, all of which will prove invaluable to the completion of your React feature. I am also comfortable working with React 18, functional components, JSX/TSX and incorporate clean coding practices into my TAiledWind CSS technical solutions.
₹22,000 INR in 14 days
4.7
4.7

Hi, I see you need someone to jump into an existing React 18 codebase, take one feature from idea to a clean merge-ready PR — with tests, lint-friendly code, and a short hand-off note. I can review the repo, outline a short plan, implement in your component patterns, and open the PR ready to merge. Ready once I have repo access (or a zip) and the feature brief. I’ll keep trade-offs clear in the PR description so you know why the approach was chosen. Relevant work: - https://www.freelancer.com/u/albertc1996/portfolio/cms-one-page-application-14024886 - https://www.freelancer.com/u/albertc1996/portfolio/dose-smart-health-manager-13820491 Is the feature mostly UI, data/hooks, or wiring to an existing API? Best regards
₹28,000 INR in 3 days
4.5
4.5

Hi there, I’m Karthik, a Senior React Architect with 15+ years of experience building high-performance frontend applications, custom hooks, and scalable state management systems using React 18 and TypeScript. How I Will Deliver Codebase Onboarding & Planning: Swiftly review your existing repository, clarify requirements, and outline a concise implementation plan detailing trade-offs and component architecture. Clean Implementation: Write clean, modular, and fully typed (TSX) functional components adhering to your linting rules, performance best practices (Memoization, custom hooks, lazy loading), and design patterns. Testing & Merge-Ready PR: Deliver a clean Pull Request featuring robust unit tests (Jest / React Testing Library), comprehensive code comments, and clear hand-off notes for smooth deployment. Technical Expertise Core: React 18, TypeScript/JSX, Custom Hooks, Context API, Redux Toolkit / Zustand, React Query. Quality & Performance: Jest/RTL unit testing, memoization (useMemo, useCallback), profile profiling, and clean Git workflows. Fixed Price: ₹22,000 INR Timeline: 3 - 5 Days (Depending on feature scope) Ready to jump into the repo and start immediately. Let’s connect to discuss the feature requirements! Best regards, Karthik
₹25,000 INR in 7 days
4.5
4.5

As an experienced Full-Stack Developer, I've honed my skills in agile development and frontend technologies, making me an ideal choice for your React feature implementation. Not only do I excel in working with React 18, functional components, and JSX/TSX—your project's stack of choice—but I also emphasize clean and well-commented code, linting rules adherence and solid component structure. My proficiency expands beyond just providing functional solutions; it includes excellent communication skills and the ability to explain complex decisions in a comprehensible manner. Throughout our collaboration, I'll keep you well-informed on the trade-offs made and provide a short hand-off note to ensure a seamless merge and deployment process. Moreover, I appreciate the importance of thorough testing and understand the value of reliable solutions — two aspects that are indispensible when implementing a production-ready feature. With my expertise in delivering cloud-native architectures using AWS, Azure, and Google Cloud—architectures that are both highly-scalable and secure—I am more than capable of meeting your project's requirements. Let's join forces and turn your concept into a powerful reality!
₹25,000 INR in 7 days
3.9
3.9

Hi, I understand that you need a skilled React developer to implement a new feature in your existing codebase, and I'm confident in my ability to jump right in and complete the task from concept to merge-ready pull request. To clarify, my approach will involve thoroughly reviewing the codebase to understand the existing architecture and component structure, collaborating with you to clarify the feature requirements, and outlining a concise plan for implementation. Given my background in full-stack development, I'm comfortable working across a typical modern stack, including React 18, functional components, and JSX/TSX. I've successfully integrated React with various backend technologies, including Laravel and Node.js, and I'm well-versed in code quality, linting, and testing. Here are the key aspects of my approach: • Review the current repository, ask clarifying questions, and outline a plan for the feature • Implement the solution in clean, well-commented code, following your linting rules and component structure • Supply a PR with passing unit tests and a short hand-off note, allowing you to verify, merge, and deploy with confidence I'd like to clarify that my estimate for completing the feature is 3 days, considering the scope of the project. However, I'd like to discuss the project timeline and requirements in more detail before providing a final estimate. Best Regards, Anil Prajapati
₹22,715 INR in 3 days
3.6
3.6

Hello, I can jump into your existing React 18 codebase, understand the current architecture, and deliver the requested feature as a clean, tested, merge-ready PR. Approach Review the repository and existing component patterns Clarify requirements and prepare a concise implementation plan Build using React functional components, Hooks, JSX/TSX Follow existing coding and linting standards Add/update unit tests Check performance, edge cases, and integration Deliver a production-ready PR with clear handover notes I’m experienced with state management, advanced hooks, reusable components, API integration, and React performance optimization. Timeline: 2–5 days, depending on feature complexity Budget: I can complete the work within your budget and use a milestone-based approach. Ready to review the codebase and start immediately.
₹20,000 INR in 17 days
4.3
4.3

Hi, I’ve carefully gone through your requirements and can jump into your existing React 18 codebase, understand the current structure, and implement the required feature cleanly without disturbing existing functionality. I’ll follow your coding standards, add proper unit tests, handle performance considerations, and provide a merge-ready PR with a concise handover note. Could you please share the repository and existing feature requirements? Also, are there any specific testing or linting standards already configured in the project? Let’s discuss the details in chat, review the codebase, and proceed with the next steps. Best Regards, Arshiya
₹25,000 INR in 7 days
3.8
3.8

Hello, To enhance the user experience, I understand the importance of seamlessly integrating a new React feature into your existing codebase. Starting by reviewing the repository, I will outline a clear plan to implement the feature, ensuring clean, well-commented code that adheres to linting rules and component structure. I will focus on delivering a pull request with passing unit tests, enabling a smooth hand-off for verification, merging, and deployment. Having experience in performance optimization, advanced hooks, and complex component lifecycles, I am well-equipped to handle the challenges of this project. I prioritize effective communication and transparency in decision-making, allowing for a collaborative and efficient development process. Looking forward to discussing further details and collaborating on this exciting project. Best regards,
₹12,500 INR in 3 days
3.2
3.2

Hello, I’d be happy to work on the new React feature in your existing codebase. I have 8+ years of experience in web and application development, with strong hands-on experience in React, JavaScript, functional components, hooks, API integration, state management, and performance optimisation. I can start by reviewing the repository and understanding the current component structure, state management, and coding conventions. Once the exact feature is shared, I’ll outline a concise implementation approach, build it using clean React 18 functional components/hooks, and ensure it integrates properly with the existing application. I’ll also add or update the necessary unit tests, follow the project’s linting and code standards, verify that existing functionality is not affected, and provide a merge-ready Pull Request with a short hand-off note explaining the implementation and any important decisions. I’m available to start immediately. Please share the repository and feature details so I can review the scope. Thanks!!
₹12,500 INR in 7 days
3.2
3.2

Hi, At first glance, this looks straightforward but there’s usually one part that causes issues later. I’ve handled similar work before and can help you avoid that. Regards, Rajesh
₹25,000 INR in 7 days
3.0
3.0

Hello Sir, LET'S DISCUSS NOW FREELANCER CALL TO INSTANT START !! I’m an experienced React developer with strong expertise in React 18, TypeScript, hooks, state management, and performance optimization. I’ll review your existing codebase, implement the feature cleanly with tests, and deliver a merge-ready PR with clear documentation. THANKS Manpreet
₹12,500 INR in 5 days
2.9
2.9

Hello, The main challenge here is fitting the new React feature cleanly into your existing architecture rather than treating it as an isolated component. I’d start by reviewing the repository, component patterns, state flow, tests, and linting rules, then outline the smallest maintainable implementation before coding. The feature would be integrated using your existing React 18 conventions, covered with appropriate unit tests, and delivered as a merge-ready PR with the key trade-offs documented. I’m comfortable working through hooks, component lifecycles, and performance-sensitive UI logic without unnecessarily changing surrounding code. Which part of the repository currently owns the feature’s state or data flow? Do you already have acceptance cases or expected UI behavior for the feature? Send the repository details and I can review the implementation path with you. Thanks, Akshay
₹25,000 INR in 7 days
2.7
2.7

Hi, I have 8+ years of experience in React.js development and can work directly within your existing codebase to complete and integrate the required feature. I’ll first review the repository and current architecture, then provide a clear implementation plan before development. I’ll follow your existing React 18 structure, coding standards, linting rules, and component patterns. I can handle state management, custom hooks, reusable UI components, performance optimization, and complex component lifecycles. I’ll also write unit tests, verify the implementation, and deliver a clean merge-ready PR with a short handover note. I’m available to start immediately and can begin with the repository review. Best Regards, Vandini
₹23,000 INR in 20 days
2.2
2.2

Hi, I’m an experienced React developer comfortable with React 18, functional components, hooks, JSX/TSX, state management, and performance optimization. I can quickly understand your existing codebase, plan the feature, implement clean and maintainable code, add unit tests, and provide a merge-ready PR with clear documentation. I’ll follow your existing architecture, coding standards, and linting rules while keeping communication clear throughout the development process. Let’s have a conversation to discuss the feature and get started. Best Regards, ALOP
₹12,500 INR in 3 days
3.2
3.2

I have relevant past experience and can share the details in chat. I can review the existing React 18 component structure, state flow, hooks, and test conventions before implementing the agreed feature in the established pattern. I will add focused unit tests, keep the change merge-ready, and provide a concise handoff note. Any dependency or lifecycle trade-off will be identified before coding so the feature stays within its agreed boundary.
₹12,500 INR in 7 days
2.4
2.4

I’m an experienced React developer skilled with React 18, functional components, and JSX/TSX. I can review your repository, outline a clear plan, and deliver a merge-ready pull request with clean, well-commented code that follows your linting rules. My workflow will include: Repository review and clarifying questions Feature implementation with unit tests Pull request delivery plus a short hand-off note I’m comfortable with state management, advanced hooks, and performance optimisation, ensuring the feature integrates smoothly and is production-ready. Typical turnaround depends on feature complexity, but I aim for efficient delivery with clear communication. Best regards,
₹25,000 INR in 7 days
1.9
1.9

Ranchi, India
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