Philona Reetha Sebastian
Senior Software Engineer @KeyValue Software Systems || Backend Developer
- Role
- Senior Software Engineer at KeyValue
- Location
- Kottayam, KL, IN
- LinkedIn followers
- 500 followers
About Philona Reetha Sebastian
I’m a Senior Software Engineer with over 3 years of experience specializing in backend development and system design. I focus on building scalable, high-performance systems using Node.js, NestJS, PostgreSQL, and GraphQL.Alongside JavaScript and TypeScript, I’ve also worked with Python (Flask, FastAPI) to develop data-centric and AI-powered services. I have hands-on experience implementing Retrieval-Augmented Generation (RAG) pipelines, integrating LLMs, and fine-tuning GPT models to build intelligent, context-aware applications.My experience includes designing microservices architectures, optimizing database queries and caching strategies, enhancing system performance and reliability, and improving unit test coverage by 65% through robust testing practices and automation. I hold a B.Tech in Computer Science and Information Technology from CUSAT, graduating 2nd rank in the university.Passionate about AI integration, scalable backend systems, and solving real-world problems through technology.
Experience
Senior Software Engineer
Jan 2026 — Present · Kochi, IN
Education
Cochin University of Science and Technology
BTech - Bachelor of Technology, Information Technology
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