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I’m running a production web app built with React, TypeScript and a Node.js API. Everything functions, yet the codebase has sprawled into huge, responsibility-packed files. Logic sits inside components, duplication is everywhere and backend processing is starting to slow us down. What I need now is a careful, end-to-end refactor that delivers genuinely modular code without breaking any current feature. The priorities • Split the oversized front-end and back-end files into clear, well-named modules so each piece does one thing. • Extract reusable React components, hooks and shared utilities, eliminating duplicates. • Reorganise the Node.js layer so backend processing is leaner and quicker, tightening any obvious performance bottlenecks. Deliverables • Refactored React/TypeScript front-end arranged by a sensible feature or domain pattern. • Node.js services/controllers separated cleanly, with demonstrable reduction in request latency. • Consolidated shared helper libraries replacing duplicated logic. • Migration notes and a concise changelog for future contributors. • Proof of no regressions: existing tests still pass and key API benchmarks match or improve. If you have a track record of untangling legacy projects and care about clean architecture, drop me a note outlining similar refactor work you’ve led and your preferred approach.
Project ID: 40337131
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Hey- I've handled React/Node codebases in this exact state. I refactor in small steps (no breaking changes), split large files, remove duplication, and clean up backend logic to improve performance. Happy to review one files and show my approach. Let me know ?
$20 USD in 1 day
3.5
3.5
50 freelancers are bidding on average $32 USD for this job

Hi there, I like how you have outlined your project description and the clear priorities for your React-Node refactor. You’re looking to transform your sprawling, responsibility-packed React and Node.js codebase into a clean, modular architecture that improves maintainability and backend performance without breaking existing features. Your focus on splitting large files, extracting reusable components and hooks, and streamlining backend services aligns well with best practices for scalable full-stack applications. With extensive experience in refactoring legacy React-TypeScript and Node.js projects, I specialize in modularizing codebases by applying domain-driven design and feature-based structuring. I ensure duplicated logic is eliminated by consolidating shared utilities and thoroughly optimize backend service layers to reduce latency and improve response times. I also emphasize maintaining test coverage and delivering clear migration notes so the transition is smooth for future contributors. I am confident I can untangle your code efficiently and improve both frontend organization and backend processing speed while preserving all current functionality. Please feel free to reach out so we can discuss your project in detail and collaborate on creating a robust, maintainable codebase that meets your goals.
$30 USD in 14 days
5.9
5.9

Hi, I have carefully reviewed your project details and am writing this bid myself with confidence in delivering a clean, modular refactor without disrupting your current application's functionality. Your focus on splitting large files and improving performance resonates with my expertise in modernizing React-Node codebases. With extensive experience refactoring TypeScript frontends and Node.js backends, I specialize in modularizing code by feature/domain, extracting reusable components and hooks, and optimizing API layers for faster response times. I will also provide clear migration documentation and ensure thorough testing to maintain stability. Let's initiate this project with an assessment of your current bottlenecks, aiming to complete the refactor in about two weeks while keeping full transparency. Could you share more details about your current backend bottlenecks or specific API endpoints that are slowing down requests? Best regards,
$25 USD in 14 days
6.0
6.0

Your codebase sounds like a classic case of organic growth outpacing architecture—I've led exactly this kind of React/TypeScript and Node.js refactor multiple times, breaking monolithic files into clean, single-responsibility modules without touching feature behavior. My approach starts with auditing your largest files and mapping shared logic, then progressively extracting domain-organized components, custom hooks, and shared utilities while running your existing test suite as a continuous safety net. On the backend, I'll decompose bloated controllers into focused service layers and profile request paths to tighten latency bottlenecks. I can start immediately and will deliver migration notes plus before/after benchmarks so every improvement is measurable.
$10 USD in 1 day
5.5
5.5

As a seasoned full-stack developer with extensive experience in wrangling complex codebases, I firmly believe I'm the perfect fit for your React-Node refactor project. I have a knack for dissecting large monolithic code and transforming them into clean, well-named and modular components that yield optimal performance. Moreover, my expertise spans across both frontend and backend development, and Node.js is one of my core competencies. My meticulous approach to untangling legacy projects aligns with the priorities you've mentioned - splitting oversized files, extracting reusable components, and tightening performance bottlenecks in the backend. I bring to the table a comprehensive set of skills including React, TypeScript, JavaScript, and Node.js; combining these skills will enable me to deliver the most efficient refactored codebase you're seeking. Lastly, I hold a deep respect for clean architecture in software development. This epitomizes in my work where I've consistently prioritized logical structuring, eliminated duplication and focused on improving efficiency. Given your requirement of 'Proof of no regressions', I assure you that not only will existing tests pass but also critical API benchmarks will match or improve. In hiring me for this project, you're not just getting a talented developer but an industry-seasoned professional who understands your requirements deeply and who can efficiently execute them.
$20 USD in 1 day
5.5
5.5

Hi there, I understand you're looking to refactor your production web app built with React, TypeScript, and a Node.js API. My experience in tackling complex legacy codebases makes me a great fit for this task. My approach will involve systematically modularizing your front-end and back-end code, ensuring each file has a dedicated responsibility. I will extract reusable components and hooks to eliminate duplication and reorganize the Node.js layer for optimized processing. As a suggestion, implementing a consistent pattern for your modules could greatly enhance maintainability and clarity. I've recently led a similar refactor for a React app that improved performance significantly while preserving all core functionalities. I can assure you there will be no regressions; all existing tests will pass and API benchmarks will be met. I can start within a week and expect to complete this project in 10-14 days. Regards, Khurshid Ahmed
$30 USD in 2 days
4.9
4.9

Hello, I can refactor your React + TypeScript and Node.js codebase into a clean, modular architecture without breaking existing functionality. With 5+ years of experience, I specialize in restructuring messy codebases into scalable, maintainable systems. What I can help with: • Split large files into clear, single-responsibility modules • Extract reusable components, hooks & utilities • Optimize Node.js services for better performance • Remove duplication and improve overall structure Warm regards, Monica Bhatia
$20 USD in 2 days
4.5
4.5

Hi there! You are looking to refactor a sprawling React/TypeScript and Node.js app, and the real challenge is breaking down large files and tangled logic into clean, modular code without disrupting current features — that is exactly where most projects risk regressions. I recently led a full refactor for a SaaS platform, splitting front-end components into reusable modules, extracting hooks and utilities, and reorganizing Node.js services to reduce API latency by 35 percent. The approach maintained all features while improving performance and long-term maintainability. I will modularize your front-end using feature-based structure, extract reusable components and hooks, streamline backend services, remove duplicated logic, and provide migration notes and a changelog to ensure no regressions occur. Check our work: https://www.freelancer.com/u/ayesha86664 Do you want the front-end refactor organized by domain/features or by technical layer (components, hooks, utils)? I am ready to start — just say the word. Best Regards, Ayesha
$350 USD in 5 days
4.0
4.0

Hii there, I’m offering a 30 percent discount for this project and would be glad to assist you in refactoring your React-Node codebase. With experience in full-stack JavaScript development, I can improve your code structure, performance, and maintainability while ensuring everything runs smoothly. I will clean up redundant code, optimize components and APIs, and reorganize the project architecture for better scalability and readability. The focus will be on enhancing performance, reducing technical debt, and ensuring best practices are followed across both frontend and backend. As a dedicated freelancer, I prioritize attention to detail, clear communication, and delivering high-quality, maintainable solutions. I am confident that I can refactor your React-Node codebase efficiently and set a strong foundation for future development. Kind regards, Sohail Jamil
$10 USD in 1 day
4.5
4.5

I can help refactor your React, TypeScript, and Node.js codebase to be cleaner, more maintainable, and easier to extend while keeping your production app stable. I focus on improving structure and performance without disrupting existing users or business operations. I’ve worked on several production-scale React/TypeScript frontends and Node APIs, where the main goal was to untangle legacy code, reduce bugs, and make future changes faster and safer. This has included modularizing components, tightening typings, and aligning backend endpoints with clearer contracts. My approach would start with a brief audit of the current codebase, identify high-impact refactor targets, then refactor in small, tested increments. Throughout, I’d keep you updated and align changes with your roadmap and deployment process. I would love to chat more about your project! Regards
$20 USD in 7 days
3.6
3.6

I’m ready to help you transform your sprawling codebase into a clean, modular, and maintainable system that performs better without breaking any features. We’ve improved apps for various service-based businesses by organizing code into clear, single-responsibility modules that are easy to navigate and extend. I bring strong off-platform experience in refactoring TypeScript and Node.js projects. Your focus on splitting oversized files, extracting reusable React hooks and components, and streamlining backend services for leaner processing fits perfectly with my expertise. Key skills include modular architecture, performance tuning, and thorough testing to ensure zero regressions. We can chat more about your challenges, and I promise not to bore you with tech jargon. Let’s have a chat, Alicia
$24 USD in 14 days
3.2
3.2

I have extensive experience untangling legacy TypeScript projects, specifically focusing on turning monolithic frontend components into modular hooks and refactoring chaotic Express servers into clean, service-oriented architectures. I prioritize readable code, strong typing, and performance. I am ready to begin this work immediately to improve your developer experience and app performance.
$35 USD in 3 days
2.9
2.9

Hi, I can cleanly refactor your React + Node.js codebase into modular, maintainable architecture without breaking existing features. I’ve handled similar projects where I reduced file complexity, removed duplication, and improved API performance. I’ll ensure clear separation of concerns, reusable components/hooks, and optimized backend structure — along with zero regressions. Happy to jump on a quick free call to review your code and outline a precise refactor plan.
$20 USD in 7 days
2.7
2.7

As an experienced Full Stack Web Developer with a speciality in MERN stack and Node.js, I am the perfect fit to tackle the complexities of your React-Node codebase. My extensive understanding of front-end and back-end technologies will enable me to unravel the current tangles within your system effectively. Moreover, I have a keen eye for extracting reusable components, hooks, and shared utilities - an essential step for eliminating the duplication that's bogging down your application. Having successfully refactored numerous complex projects before, I understand the urgency to maintain feature integrity while improving overall efficiency. My clean coding practices, scalable architectures, and rigorous testing protocols ensure that there won't be any regression or loss of performance from existing features. With my deliverables including properly structured front-end modules based on a sensible feature pattern, leaner and quicker Node.js services/controllers, consolidated helper libraries, thorough migration notes, and a concise changelog for future contributors, you can rest assured that your codebase will be significantly optimized.
$10 USD in 7 days
2.5
2.5

Hello, I understand your need for a meticulous, end-to-end refactor that enhances modularity without disrupting existing functionality. My approach begins with analyzing your current React, TypeScript, and Node.js codebase to identify oversized files and duplicated logic. I will split these into well-named modules by feature or domain, extracting reusable React components, hooks, and shared utilities. On the backend, I will reorganize Node.js services and controllers to reduce processing time, aiming for a measurable drop in request latency. This will include consolidating shared helper libraries to eliminate redundancy. I will provide comprehensive migration notes and a concise changelog to assist future contributors, along with thorough testing to ensure zero regressions and matched or improved performance benchmarks. This approach guarantees a cleaner architecture and a more maintainable, efficient system. Could you share which parts of the backend currently experience the most noticeable performance issues or bottlenecks? Best regards,
$15 USD in 1 day
2.6
2.6

I’ve refactored React/TypeScript, Node.js apps, turning large codebases into clean, modular structures without breaking features. I can split your frontend into feature-based modules, extract logic into reusable hooks/services, and reorganize the backend into controllers and services while removing duplication. I’ll also review slow endpoints and optimize bottlenecks. All changes will be incremental with no regressions. Do you prefer feature-based structure, or should I define it during the refactor? Thanks
$15 USD in 1 day
2.5
2.5

Hi, I’ve read your description and I’m confident I can untangle the sprawling React/TypeScript and Node.js codebase without breaking features. I’ve led multiple refactors where I extracted reusable components, custom hooks and shared utilities, split backend controllers/services, and removed duplicated logic to improve maintainability and latency. My approach: map current responsibilities, create a feature/domain folder structure, extract small components/hooks, centralise helpers, and refactor Node services into thin controllers and optimized service layers with targeted benchmarks. I’ll run and extend tests and provide migration notes and a concise changelog. Which three areas (specific files or routes) cause you the most concern now so I can prioritize the refactor? Sincerely, Cindy Viorina
$10 USD in 4 days
2.1
2.1

Hi there, I understand the challenges you face with your sprawling React-Node codebase, and I'm here to help. With over 9 years of experience in building scalable web applications and extensive expertise in React, TypeScript, and Node.js, I am confident in delivering a thorough end-to-end refactor that respects your existing features while significantly improving modularity and performance. I have led similar refactor projects where I successfully condensed oversized components into clean, reusable modules and optimized backend processes to reduce latency. My approach includes organizing the front end by feature domains, restructuring Node.js services for efficiency, and consolidating shared libraries for cleaner code. I can start immediately and ensure all existing tests pass, maintaining a robust foundation. Let's discuss your vision for this project further.
$30 USD in 14 days
1.8
1.8

Hi, Timeline: 2–4 days||Budget: $120 USD Your app works… it just needs a cleanup before it turns into a “where did this logic come from?” situation. I’ll refactor both frontend and backend into clean, modular architecture—breaking down oversized files, extracting reusable hooks/components, and restructuring your Node.js layer so it’s faster and easier to maintain. No feature breaks, no surprises, just cleaner code that actually makes sense. You’ll get a structured codebase, reduced duplication, improved performance, and clear notes so future devs don’t panic when opening a file. I’ve handled similar refactors where the goal is simple: same app, but no longer held together by hope and copy-paste.
$120 USD in 2 days
1.5
1.5

Hello, As a full-stack developer with a keen understanding of both frontend and backend structures, I am confident in my ability to successfully refactor your React-Node Codebase while preserving current functionalities. Over the course of my career, I've worked on numerous legacy projects and have a proven track record of untangling complex code architecture without compromising performance or feature stability. My core skills in React, TypeScript, and Node.js align perfectly with the requirements of this project. I specialize in designing clean architecture optimized for performance and maintainability. I will meticulously split the existing, oversized files into smaller, well-named modules to promote modularity. Extracting reusable React components and hooks to minimize duplication is another area where I excel, ensuring your codebase becomes leaner, easier to manage, and promoting further development efficiency. In addition to tidying up your codebase, I will also consolidate shared utility libraries and improve backend processing for enhanced responsiveness through my performance tuning abilities. To mitigate risks and ensure transparency, I will provide migration notes, a concise changelog for future contributors, and run extensive regression tests to guarantee all existing features are preserved as expected. Let me show you how my deep passion for clean architecture combined with my technical expertise can truly transform y Thanks!
$10 USD in 7 days
0.0
0.0

Hi there, I can turn your sprawling React-TS frontend and chunky Node API into a clean, modular codebase without disrupting current features. I’ve spent the last 4 years solving exactly this pattern of legacy-turned-scalable architecture, so I know where duplication hides, how to extract reusable components and hooks, and how to reorganize services for lean, fast backends. My approach: - Frontend: break by feature/domain, extract shared components/hooks/utilities, and prune duplicated logic; introduce clear boundaries with TypeScript types and simple, well-named folders. - Backend: separate controllers/services, introduce lean data-access layers, cache or optimize hot paths, and apply profiling to shave latency. - Shared libraries: consolidate common helpers to remove duplication and ensure consistent behavior across UI and API. - Validation and tests: run full test suite, add smoke tests for critical flows, and provide migration notes and a concise changelog. - Benchmarking: track API latency and client load times, aiming for no regressions and measurable improvements. This plan preserves existing features while delivering a modular, maintainable codebase and clear contributor guidance. Best regards, Peter
$25 USD in 7 days
0.0
0.0

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