Question 1

Who is Prabakaran M?

Accepted Answer

Prabakaran M is a Full Stack Software Engineer based in Coimbatore, India, with 3 years of experience building production web applications with Next.js, React, TypeScript, Node.js and tRPC/oRPC. He is the founder and sole engineer of CrayonSparks, a live AI SaaS, and works as a Software Engineer at Darthwares.

Question 2

What is Prabakaran M's tech stack?

Accepted Answer

He works across the full stack: Languages: TypeScript, JavaScript (ES6+), SQL, Frontend: Next.js, React, Tailwind CSS, Redux, Zustand, Jotai, Recoil, Backend & APIs: Node.js, Express, tRPC, oRPC, REST APIs, Server Actions, Databases: PostgreSQL, MySQL, MongoDB, Firebase / Firestore, Cloud: Vercel, AWS (EC2, Amplify, S3), Cloudflare R2, Netlify, AI: OpenAI, Google Gemini, Vercel AI SDK and Testing & tooling: Jest, Playwright, Postman, Sentry, Git / GitHub.

Question 3

What has Prabakaran M built at Darthwares?

Accepted Answer

Since July 2023 he has built and shipped three production web apps end-to-end: LeetCampus: backend services, role-based access and placement-drive workflows for 2,500+ concurrent students per placement drive, cutting manual work by 80%, LeetCV: features for an AI resume builder with 150,000+ users, including Leet Link and analytics dashboards, Ennuviz: a custom event registration system with spreadsheet automation, reducing manual reporting by 90% and Across products: 40% faster page loads and 40% fewer re-render issues.

Question 4

What is CrayonSparks?

Accepted Answer

CrayonSparks is a live AI book SaaS that Prabakaran M designed, built and deployed end-to-end as sole engineer. It turns prompts into print-ready story, coloring and activity books.

AI pipeline: multi-provider image and text generation with OpenAI + Google Gemini via the Vercel AI SDK
Backend: type-safe oRPC API with Firebase Admin / Firestore and Cloudflare R2 storage
Publishing: print-ready PDF exports for Amazon KDP, with titles published live
Billing: subscriptions and a metered credits system via LemonSqueezy

Built with Next.js 16, React 19 and TypeScript.

Question 5

What are Prabakaran M's education and certifications?

Accepted Answer

He holds a BE in Metallurgical Engineering from PSG College of Technology (2018–2022). His certifications: HackerRank: SQL (Intermediate), HackerRank: React (Basic), HackerRank: Problem Solving (Basic), freeCodeCamp: Front End Development Libraries, freeCodeCamp: JavaScript Algorithms and Data Structures and Scaler Topics: AWS Free Course.

Question 6

Is Prabakaran M available for hire?

Accepted Answer

Yes. He is open to new full-time Full Stack / Software Engineer roles in: Bangalore, Chennai, Hyderabad and Kochi. He is based in Coimbatore and can be reached at prabakaran.m0208@gmail.com.