Tech Lead at Metafic. I take client projects from spec to production — React and Next.js on the front, Node.js and Rails services behind them, deployed on AWS. I also run our technical interviews and review most of the code that ships.
Most of my work is the unglamorous kind: profiling slow pages, untangling legacy modules, designing APIs that survive scope changes.
Currently: leading development on Dallal — a real-estate marketplace for Kuwait, across web (React), mobile (React Native), and a Rails backend in two languages.
- Frontend — React, Next.js, TypeScript, React Native, Tailwind CSS, Zustand, React Query
- Backend — Node.js, Express, Ruby on Rails, GraphQL, REST, WebSockets
- Data & Cloud — AWS, PostgreSQL, MongoDB, Redis, Supabase, Firebase, Docker
- Dallal — Kuwait real-estate marketplace: map-based search, in-app chat, broker workflows. React · React Native · Rails
- code.rajkar.dev — real-time collaborative coding interview platform with live cursors and session control. Built it because CodeSandbox killed live collab. Next.js · WebSockets · PartyKit
- Geetly — ad-free music streaming, designed and shipped solo. Next.js · Supabase
- Caprics School — EdTech platform with interactive learning and course management. React · Node.js · MongoDB
More case studies at rajkar.dev/work.
- I Built My Own CodeSandbox Because Real-Time Collaboration Died — why and how I built a live coding interview platform.
- Portfolio — rajkar.dev
- LinkedIn — linkedin.com/in/raj-kar-40b7281a3
- Email — contact@rajkar.dev