You will get a consultation on React Legacy Code Refactoring
Top Rated

Project details
Technical debt shouldn't slow down your team's development velocity. I specialize in the strategic refactoring and modernization of large, complex React codebases. I help businesses "slice" legacy systems and replace them with modern, strictly typed React modules without disrupting active production. Let’s turn your legacy challenges into a high-performance, maintainable asset.
⚠️ PLEASE MESSAGE ME to discuss your project goals BEFORE purchasing this consultation.
⚠️ PLEASE MESSAGE ME to discuss your project goals BEFORE purchasing this consultation.
Programming Languages
HTML & CSS, JavaScript, TypeScriptCoding Expertise
Cross Browser & Device Compatibility, PSD to HTML, Performance OptimizationWhat's included $300
These options are included with the project scope.
$300
- Delivery Time 20 days
- Number of Revisions 0
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BG
Basanth G.
Feb 16, 2023
Strong React developer to develop expression (code) editor and visual data mapping
BD
Brian D.
Oct 30, 2021
Guru Level ReactJS Developer
BD
Brian D.
Jul 9, 2021
Guru Level ReactJS Developer
GC
Garen C.
May 18, 2021
Front-End Javascript developer for 3D design application
Anton did an excellent work for us over the many months. He is very professional and detail oriented. I enjoyed working with him and The Evenstar team...Great work and Thank you!
AS
Alan S.
Mar 11, 2020
React JS Frontend Developer
Anton was great. I had no issues with his English proficiency whatsoever. He was excellent at communicating and showed genuine interest in ensuring the job was completed successfully. Will hire again.
About Anton
React Developer | TypeScript & React Architect
100%
Job Success
Zaporizhzhya, Ukraine - 2:19 pm local time
With 7+ years of professional experience and a Master’s in Software Engineering, I specialize in the React ecosystem to build scalable, high-performance applications. As a Senior React developer, I have a proven track record of delivering enterprise-grade React.js solutions across high-growth industries.
🌍 INDUSTRIES & DOMAINS:
• EdTech & E-Learning: Building interactive educational platforms, student dashboards, and complex learning management systems (LMS) with seamless user experiences.
• FinTech & Digital Banking: Developing robust, high-performance financial technology applications and scalable, visually captivating interfaces.
• Enterprise Data Engineering: Architecting large-scale data transformation and mapping engines using strict TypeScript for maximum stability.
• HealthTech & Security: Engineering secure frontend modules and identity management systems with Okta Authentication for medical sectors.
• SaaS & Business Automation: Creating sophisticated B2B tools with interactive modules like drag-and-drop systems and complex data visualizations.
🚀 HOW I ADD VALUE TO YOUR REACT PROJECT:
• Advanced React Architecture: I architect complex React applications from scratch, ensuring they are robust, secure, and ready for global scaling.
• Legacy React Modernization: I specialize in the strategic refactoring of large, evolving React codebases, replacing outdated components with modern, typed React modules.
• Complex React UI Engineering: Expert in building sophisticated React-based interfaces, including Drag-and-Drop systems (React-DnD), graph visualizations (React-Xarrows), and custom code editors.
• React Performance & State: I optimize React application performance using modern state management like Zustand, Immer, and Redux, and migrating environments to Vite for maximum speed.
🛠️ THE REACT TECH STACK:
Core: React (Functional & Class), TypeScript (Expert), Next.js.
React Libraries: React-DnD, React-Xarrows, React-Konva, React Hooks, React Context.
State Management: Zustand, Redux (Saga/Thunk), Immer, Zundo.
UI for React: Ant Design (AntD), Material-UI (MUI), SCSS.
React Testing & Tooling: Vite, Webpack, Jest, React Testing Library.
Ready to build a world-class React application?
👇 Click "Message" or "Invite" to discuss how my React expertise can help your business!
Steps for completing your project
After purchasing the project, send requirements so Anton can start the project.
Delivery time starts when Anton receives requirements from you.
Anton works on your project following the steps below.
Revisions may occur after the delivery date.
Codebase Audit
Identifying architectural weaknesses and performance bottlenecks in your React app.
Modernization Roadmap
Creating a step-by-step migration plan to TypeScript and modern build tools like Vite.