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KARTIKEY KUMAR

@kartikeykumar

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Full Stack developer building scalable AI SaaS products with Next.js, TypeScript, and production-grade backend systems.

India

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What I'm looking for

I’m looking for a team where I can build AI-integrated SaaS with clean, type-safe code—shipping production features end-to-end (frontend, APIs, DB, deployment), with strong observability, testing, and CI/CD.

I’m a Full Stack Developer building scalable SaaS applications with Next.js, React.js, Node.js, and TypeScript, focused on production-grade backend architecture and type-safe, performance-first systems. I’ve shipped AI-integrated features using LLMs (GPT, Whisper, Groq) with async pipelines, job queues, retries, and observability.

In recent roles, I’ve built and deployed production-ready SaaS products (SpeakEasyAI, DevOverflow, Jotion), including authentication, subscription systems, and secure protected routes. I also train and evaluate code-focused LLM prompts using RLHF, and I bring a clean-code mindset backed by testing and CI/CD practices like structured logging and health checks.

Experience

Work history, roles, and key accomplishments

Current

Full Stack Engineer

Current

Independent / Open Source

Jun 2024 - Present (2 years)

Built and deployed production-ready SaaS applications (SpeakEasyAI, DevOverflow, Jotion) with Next.js and TypeScript, and engineered AI pipelines using Whisper/GPT with async job processing, retries, and AWS S3. Implemented authentication, protected routes, subscription systems, idempotent APIs, CI/CD, structured logging, and observability for reliable operations.

Next.js TypeScript PostgreSQL Redis AWS S3 CI CD Observability

AI Code Specialist

Remotasks (Scale AI)

Nov 2023 - May 2024 (6 months)

Performed RLHF on large language models to improve code generation accuracy in Python and JavaScript. Engineered 200+ structured coding prompts to stress-test LLMs across edge cases and achieved 100% QA accuracy, raising team-wide quality benchmarks.

LLM Prompt Engineering Python JavaScript QA Testing Model Evaluation Debugging Observability

Web Development Intern

Yougetplaced

Sep 2022 - Dec 2022 (3 months)

Built a MERN-based developer Q&A platform featuring JWT authentication, real-time posting, search, and a voting/reputation system. Designed RESTful APIs and optimized MongoDB schemas with indexing, and developed a responsive React/Redux frontend with clean state management.

MongoDB React Redux REST APIs JWT API Design Performance Optimization

Education

Degrees, certifications, and relevant coursework

Indira Gandhi National Open University (IGNOU)

Certificate, Full Stack Developer

Completed the Zero to Mastery Full Stack Developer certification through IGNOU.

Indira Gandhi National Open University (IGNOU)

Certificate, Advanced JavaScript

Completed the Advanced JavaScript certification through IGNOU.

Indira Gandhi National Open University (IGNOU)

Certificate, System Design Fundamentals

Completed the System Design Fundamentals certification through IGNOU.

Indira Gandhi National Open University (IGNOU)

Bachelor of Computer Applications (BCA), Computer Applications

2018 - 2022

Completed a Bachelor of Computer Applications (BCA) program from IGNOU (New Delhi), covering core computer science and application development foundations.