Sanjay Jana
Senior Full Stack Engineer
sjana7797@gmail.comMumbai, Maharashtragithub.com/sanjayjanalinkedin.com/in/sanjayjana
Senior Full Stack Engineer based in Mumbai, India, with 6+ years of experience. Specialises in multi-model AI platforms built on LangChain and RAG pipelines, high-performance fintech frontends, and reusable design systems. Currently at Enso WebWorks; previously MintOak, SaaSMonk, ValarTech and TCS. Postgraduate in Software Development from IIIT Bangalore (GPA 3.8/4.0).
Experience
Senior Software Engineer · Enso WebWorks
Sep 2025 – Present- Architected centralized internal admin portal with granular RBAC for all Enso products, empowering sales, support, and ops teams.
- Built production-grade AI chat app with real-time web search (Brave Search API) and intent-based query routing for domain-specific responses.
- Implemented intent classification via Hugging Face Transformer models for accurate detection of stocks, search, and tool query types.
- Designed scalable multi-model AI chat platform with LangChain, RAG pipelines, Ollama integration, and configurable agent workflows.
- Architected AI platform as a shared internal service enabling other teams to integrate custom agents with minimal configuration.
Senior Software Engineer · MintOak
Oct 2024 – Sep 2025- Developed and maintained high-performance fintech platform using Next.js, TypeScript, and React.js for financial data consumers.
- Engineered reusable UI component libraries with design system patterns, improving developer velocity and rendering performance.
- Optimized frontend with SSR and SSG, reducing average page load times by 50% and boosting SEO rankings.
- Integrated third-party APIs and built real-time data visualization dashboards surfacing actionable financial insights.
- Collaborated with designers, backend engineers, and product stakeholders for pixel-perfect, responsive UI.
Software Engineer – Full Stack · SaaSMonk
Sep 2022 – Oct 2024- Led development of B2B SaaS product for client marketing strategies and revenue growth through data-driven tooling.
- Built robust backend services via Next.js API routes ensuring reliable data flow and efficient API performance.
- Translated business requirements into scalable, production-ready features aligned with product and stakeholder goals.
React Developer · ValarTech
Jan 2022 – Aug 2022- Developed performant React.js applications for multiple clients with immersive UX and seamless API integrations.
- Crafted visually appealing, fully responsive interfaces using Tailwind CSS ensuring cross-device compatibility.
- Collaborated with cross-functional teams to gather requirements and deliver features on schedule.
System Engineer · TCS
Oct 2019 – Nov 2021- Built and maintained web app for RTGS and NEFT transaction management from SFMS integrated into a banking platform.
- Developed React components with deep understanding of UI/UX principles and financial domain business logic.
Skills
Languages: JavaScript (ES2022+), TypeScript, Core Java
Frontend: React.js, Next.js, Tailwind CSS, Bootstrap, Turbo Repo
Backend: Node.js, Express.js, Nest.js, Hono, Bun, Java Spring Boot
AI / ML: LangChain, RAG Pipelines, Ollama, Hugging Face, LLM Integration, Brave Search API
Databases: MongoDB, PostgreSQL, Redis
API Design: REST, tRPC, GraphQL
Testing: Jest, Vitest, React Testing Library
DevOps & Tools: Docker, Git, GitHub, VS Code, Jira, Linear
Education
PG Diploma, Software Development — IIIT Bangalore (GPA 3.8 / 4.0)