Resume Portfolio
Kurniawan
Frontend Developer | ReactJS Specialist | MERN Stack Developer
About Me
Senior ReactJS Developer with 7+ years of experience in architecting scalable web applications and 9+ years as a Frontend Engineer. Proven track record in delivering high-performance solutions, optimizing CI/CD workflows, and leading frontend initiatives. Expert in reacting to complex business requirements with innovative technical solutions, bridging the gap between design and engineering to create exceptional user experiences. Consistently recognized for excellence on Upwork, building lasting partnerships with global clients through dependable delivery and superior code quality. Advanced proficiency in AI-assisted development environments (Cursor, Claude Code, Antigravity) to accelerate delivery.
Work Experience
Senior ReactJS Developer
Feb 2018 – PresentUpwork — Freelance• New York, NY (Remote)
- Architected and deployed multiple enterprise-grade React applications, ensuring pixel-perfect implementation of UI/UX designs.
- Established long-term partnerships with global clients by consistently delivering robust, scalable, and maintainable codebases.
- Implemented modern frontend practices including component encapsulation, state management strategies, and performance optimization techniques.
React Developer
Jan 2025 – May 2025Gracy Woods• Hong Kong (Remote)
- Engineered immersive, game-like web experiences using React and Babylon.js, pushing the boundaries of browser-based performance.
- Optimized asset loading and rendering pipelines for 3D environments, implementing sprite sheet management and complex animation states.
- Collaborated closely with designers to translate creative visions into interactive, high-fidelity technical implementations.
MERN Stack Developer
Jul 2024 – Jan 2025Connect Link• Malang, Indonesia
- Designed and developed secure, scalable RESTful APIs using Node.js and Express, ensuring seamless data flow for client applications.
- Built responsive, accessibility-compliant React user interfaces that significantly improved user engagement and retention.
- Integrated complex third-party services, including PayPal subscription models, enabling secure and reliable monetization flows.
ReactJS Developer
Jan 2022 – Jun 2024PT Software Service Indonesia• Yogyakarta, Indonesia
- Led the development of high-performance React applications, optimizing bundle sizes and rendering performance for improved Core Web Vitals.
- Developed a comprehensive library of reusable UI components, reducing development time for new features by 40%.
- Mentored junior developers on React patterns, state management best practices, and clean code principles.
- Facilitated seamless API integrations with external partners, ensuring data consistency and reliability across distributed systems.
Frontend Developer
Aug 2019 – Nov 2021Onehub Solution Pte. Ltd• Malang, Indonesia
- Developed cross-platform applications leveraging React Native and ElectronJS, delivering consistent experiences across Web, iOS, Android, and Desktop.
- Contributed to the full development lifecycle, from technical specification to deployment and maintenance.
Fullstack Developer
Apr 2018 – May 2019IDProgrammer• Malang, Indonesia
- Delivered end-to-end web solutions using the React ecosystem, successfully managing project timelines and client expectations.
- Implemented full-stack features with focus on code modularity and database optimization.
Frontend Developer
Jan 2015 – May 2016JM Network• Malang, Indonesia
- Built responsive corporate websites using HTML5, CSS3, and JavaScript, ensuring cross-browser compatibility.
- Integrated PHP backends with custom frontend logic to create dynamic user experiences.
Technical Skills
JavaScript (ES6+)
TypeScript
ReactJS
Next.js
React Native
Node.js
Express.js
Redux / Zustand
React Query
Tailwind CSS
RESTful APIs
Performance Optimization
AI-Native Development (Cursor, Claude Code, Antigravity)
Education
ITB Asia Malang
Bachelor Degree in Information Technology (IT)
Malang, East Java
2015 - 2019Wearnes Education Center Madiun
Information Technology (IT)
Madiun, East Java
2013 - 2014Certifications
Meta Advanced React — Coursera
Dec 2024 – Present
Google IT Support — Coursera
Nov 2024 – Present
Verified by Credly
Google AI — Coursera
Aug 2024 – Present
Verified by Credly