Hi, I'm Shailesh Chaudhari
Full-stack engineer with a backend focus
~2.5 years in the industry. Currently at ContextQA working on the backend of our core QA-automation product — test execution engine, VNC streaming, and multi-cloud browser orchestration across Playwright / WebdriverIO / LambdaTest. Comfortable across the stack from my EsparkBiz client-project days, but I go deep on backend systems: distributed locks (Redlock), real-time pub/sub (Socket.io + Redis adapter), webhook idempotency (SETNX), AI pipelines (Gemini function-calling). Targeting backend, platform, or developer-tooling roles.
Open to part-time, freelance (hourly or project-based) work —contact me

Side projects
Things I'm building to learn
Outside of my day job, these are the small-to-medium projects I work on to explore specific backend patterns end-to-end.
Featured Articles
Dive into my latest insights on software development, problem-solving, and career growth.
Frequently asked questions
The questions recruiters and engineering managers ask most. If yours isn't here, reach out via the contact page.
Who is Shailesh Chaudhari?
Shailesh Chaudhari is a Software Engineer based in Ahmedabad, Gujarat, India, originally from Patan. At ContextQA he works on the backend of the core QA-automation product — test execution engine, VNC streaming, and browser-automation orchestration across Playwright / WebdriverIO / LambdaTest. During his first 2-3 months at ContextQA he shipped two Chrome extensions (Vibe Testing, AxeTos). Previously ~2 years at EsparkBiz shipping full-stack client projects. Side projects explore distributed systems (Redlock, Socket.io Redis adapter, Prometheus), AI pipelines (Gemini function-calling, OCR), and webhook idempotency patterns.
What technologies does Shailesh Chaudhari work with?
Shailesh Chaudhari works with TypeScript, React, Next.js, Node.js, Express.js, PostgreSQL, MongoDB, Redis, Prisma, Tailwind CSS, Socket.io, and Chrome Extension APIs. He has experience with real-time systems, AI integrations (Gemini AI), and WCAG accessibility standards.
Is Shailesh Chaudhari available for hire?
Yes, Shailesh Chaudhari is open to part-time, freelance (hourly or project-based) engagements. He can be contacted through the contact page at shaileshchaudhari.vercel.app/contact.
What are Shailesh Chaudhari's notable projects?
Shailesh Chaudhari's notable projects include EduScale (a real-time engineering learning platform with Redis pub/sub and Socket.io), DevTrack (a developer analytics dashboard), KhataGO (a WhatsApp-first AI accounting platform using Gemini AI), Vibe Testing (an AI-powered Chrome extension for web testing), and AxeTos (a WCAG accessibility testing Chrome extension).
Where can I see Shailesh Chaudhari's code?
Shailesh Chaudhari's open-source projects are available on GitHub at github.com/shailesh93602. His portfolio with live project demos is at shaileshchaudhari.vercel.app.
What are Shailesh Chaudhari's coding achievements?
Shailesh Chaudhari achieved Institute Rank 1 on GeeksforGeeks with 604+ problems solved, earned a 5-Star rating on HackerRank, and was a finalist in the New India Vibrant Hackathon 2023.