Kunal Jaiswal
Full Stack Software Engineer & Open Source Contributor
About
I'm a React Developer and Full Stack Engineer passionate about building interactive, responsive web applications that users love. I specialize in modern JavaScript/TypeScript, React, and Next.js, creating pixel-perfect UIs with a focus on performance, scalability, and clean code architecture.
With experience at NEXEM Technologies and working on collaborative platforms like Figma Clone with real-time synchronization, I'm skilled in state management, RESTful APIs, and cross-browser compatibility. I believe in translating designs into production-ready code while maintaining best practices and high-quality standards.
Bachelor of Technology in Computer Science from Graphic Era Hill University (2020-2024).
Experience
React Developer
NEXEM Technologies (Remote)
- Built interactive and responsive web applications using React.js, creating reusable component libraries that reduced development time by 30%
- Implemented state management solutions using React Hooks and Redux, integrated RESTful APIs for seamless data flow
- Optimized component rendering to improve application performance by 25%
- Translated Figma designs into pixel-perfect, production-ready code with cross-browser compatibility
- Collaborated with cross-functional teams using Git and Agile methodology, conducted code reviews to maintain high-quality standards
Freelance Web Developer
Vardhaman Sports (Roorkee, India)
- Developed a custom bill generator web application for streamlining invoice creation and management
- Implemented automated billing features with PDF export functionality for professional invoice generation
- Designed a responsive user interface ensuring seamless operation across desktop and mobile devices
- Collaborated directly with client stakeholders to gather requirements and deliver tailored solutions
Freelance Web Developer
Live Demo | GitHub
- Developed multiple production-ready web applications using React, Next.js, and Node.js
- Built AI-powered platforms, real-time collaborative tools, and animation-rich interactive websites
- Specialized in responsive design, performance optimization, and modern development practices
Open Source Contributor
- freeCodeCamp — Merged documentation PR improving developer onboarding guides; contributed to one of the largest open source codebases on GitHub.
- Activepieces — Fixed a UI bug in
flow-actions-menu.tsxwhere the Versions menu item incorrectly disappeared on run pages; surgically targeted conditional rendering logic in the YC-backed automation platform. - Twenty CRM — Implemented an expansion of the Phones composite field type to support phone type and extension sub-fields, spanning shared TypeScript types, NestJS backend resolvers, Zod validation schemas, and React form components.
- hoainho/react-debugger-extension — Multiple merged PRs: added Continue.dev MCP configuration docs, extracted magic-number
setTimeoutvalues into named constants across five files, implemented WAI-ARIA Tabs pattern with rovingtabIndexand full keyboard navigation, and added aprefers-reduced-motionCSS accessibility guard. - UTDNebula/key-provision-bot — Added Discord.js runtime command reloading, enabling hot-reload of slash commands without bot restarts.
- sandstorm-io/sandstorm — Fixed a camelCase naming typo in the core codebase; navigated maintainer feedback on branch targeting and contribution policy.
Skills
Languages
Frontend
Backend
Databases & Tools
Specialized Skills
Writing
I've had the pleasure of writing for some amazing publications as a freelance technical author:
Beyond Code
Aside from programming and writing, I enjoy reading dystopian novels, listening to calm piano music, or just enjoying some downtime.