Featured
Full-stack e-commerce solution with real-time inventory management, Stripe payments, and admin dashboard. Built to handle 10k+ concurrent users.
Next.jsTypeScriptPrismaPostgreSQLStripe
Available for work
Hi, I'm Subin Kumar
I build things for the web.
Full-stack developer with 5+ years of experience crafting performant, scalable web applications. I obsess over clean architecture, pixel-perfect UIs, and developer experience.
5+
Years Exp.
30+
Projects
15+
Happy Clients
Background
About Me
I'm a developer who believes great software is born at the intersection of solid engineering and thoughtful design. Over the past 5+ years, I've shipped production code across fintech, e-commerce, and SaaS — always with a bias toward simplicity and maintainability.
When I'm not writing code, you can find me exploring open-source projects, writing technical articles, or experimenting with new frameworks. I care deeply about developer experience and building tools that people actually enjoy using.
IndiaOpen to opportunitiesB.Tech CS
2021 – Present
Senior Full-Stack Developer
Freelance / Contract
Leading end-to-end development of web applications for startups and established businesses. Architecting scalable solutions with React, Next.js, Node.js, and cloud infrastructure.
2019 – 2021
Full-Stack Developer
Product Company
Built and maintained multiple customer-facing SaaS products. Implemented CI/CD pipelines, reduced page load times by 40%, and mentored junior developers.
2017 – 2019
Frontend Developer
Agency
Delivered 20+ responsive web projects for diverse clients. Specialized in performance optimization and cross-browser compatibility.
Portfolio
View all on GitHubSelected Projects
A curated selection of projects I've worked on. Each one presented a unique challenge and helped me grow as an engineer.
Featured
Collaborative project management tool with real-time updates, drag-and-drop kanban boards, and team analytics. Reduced team onboarding time by 60%.
ReactNode.jsSocket.ioMongoDBRedis
Featured
SaaS platform leveraging OpenAI APIs for automated content creation with custom fine-tuning, tone control, and multi-language support.
Next.jsPythonFastAPIOpenAITailwind
Monitoring dashboard aggregating CI/CD pipelines, server health, and deployment logs with real-time alerts and historical analytics.
ReactGoDockerGrafanaWebSocket
Developer productivity CLI with scaffolding, code generation, and automated testing workflows. 500+ npm weekly downloads.
Node.jsTypeScriptCommander.js
This website — built with Next.js 16, Tailwind CSS v4, and Framer Motion. Markdown-based blog with syntax highlighting and RSS feed.
Next.jsTailwind CSSMDXFramer Motion
Expertise
Tech Stack
Technologies and tools I use daily to bring ideas to life. Always exploring, always learning.
TypeScript
React
Next.js
Node.js
Python
PostgreSQL
Docker
Tailwind CSS
Redux
GitTypeScriptReactNext.jsNode.jsPythonPostgreSQLDockerTailwind CSSReduxGitTypeScriptReactNext.jsNode.jsPythonPostgreSQLDockerTailwind CSSReduxGitTypeScriptReactNext.jsNode.jsPythonPostgreSQLDockerTailwind CSSReduxGit
JavaScript
Vue.js
MongoDB
Redis
AWS
GraphQL
Go
Figma
Linux
ExpressJavaScriptVue.jsMongoDBRedisAWSGraphQLGoFigmaLinuxExpressJavaScriptVue.jsMongoDBRedisAWSGraphQLGoFigmaLinuxExpressJavaScriptVue.jsMongoDBRedisAWSGraphQLGoFigmaLinuxExpress
HTML5
CSS3
Sass
Firebase
Prisma
Jest
Vercel
Bash
VS Code
npmHTML5CSS3SassFirebasePrismaJestVercelBashVS CodenpmHTML5CSS3SassFirebasePrismaJestVercelBashVS CodenpmHTML5CSS3SassFirebasePrismaJestVercelBashVS CodenpmOpen Source
GitHub Activity
Consistency matters. Here's my contribution activity over the past year.
Contact
Let's Work Together
I'm always open to discussing new projects, creative ideas, or opportunities to be part of something great. Drop me a line and I'll get back to you within 24 hours.