>SANTANU.OS_INIT v2.4.1
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Hi, my name is

Santanu Jana.

Frontend engineer with 4.5 years of experience building React applications for regulated financial clients and enterprise product teams. I specialize in micro-frontend architectures, Core Web Vitals optimization, and agentic AI integrations.

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About Me

I'm a Frontend Engineer with 4.5 years of experience building performant, scalable web applications using React, TypeScript, and modern tooling. I've built compliance tools from scratch at Infosys and shipped features across a 6-team micro-frontend org at Accenture.

My work spans the full frontend spectrum — from crafting accessible, WCAG 2.1 AA compliant UIs and reusable component libraries, to architecting micro-frontends, optimizing Core Web Vitals, and integrating agentic AI with Gemini function calling.

Technologies I've been working with:

  • JavaScript (ES6+) / TypeScript
  • React.js / Next.js (App Router)
  • Redux Toolkit / React Query
  • GraphQL (Apollo Client, Yoga)
  • Micro-Frontends (Single SPA)
  • Jest / RTL / Stryker
  • Tailwind CSS / Material UI
  • OAuth 2.0 / JWT / RBAC
  • GitLab CI/CD / Jenkins / AWS
  • Gemini API / ChatGPT API

Education

Bachelor of Technology – Electronics & Instrumentation Engineering

Netaji Subhash Engineering College

Kolkata, India · July 2016 – June 2020

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Available for new opportunities
4+Years Experience
10K+Concurrent Users
90+Lighthouse Score

Key Achievements

🏆62 → 90+

Lighthouse score improvement via lazy loading & async images

⚡40%

Bundle size reduction across the micro-frontend platform

✅85%+

Unit test coverage with Jest & React Testing Library

🧬77%

Mutation testing score on validation logic using Stryker

🚀25%

Faster merge turnaround via standardized GitLab CI/CD rules

🤝6 Teams

Enabled to ship independently on the micro-frontend platform

Where I've Worked

Senior Software Engineer @ Infosys Limited

November 2024 – PresentPune, India
  • Built a financial crime trigger management tool from scratch — a React wizard replacing manual review, with step-by-step validation to block incomplete or conflicting regulatory submissions
  • Prevented mid-form data loss by blocking route navigation on unsaved changes; built a journey-linking modal for ops teams to group triggers across cases
  • Built KYC repository search and document management flow — case file lookup by Journey, Case, or Client ID with inline Preview, Download, Edit, and Delete actions
  • Achieved 77% mutation score (Stryker) and 85%+ unit test coverage (Jest / RTL); led reviews for a 4-person team, cutting merge turnaround by 25% via standardized GitLab CI/CD rules
React.jsTypeScriptRedux ToolkitREST APIsJestReact Testing LibraryStrykerGitLab CI/CD

Some Things I've Built

🤖

Featured Project

JobScrapper

Agentic job search platform — Gemini parses an uploaded resume and extracts skills via function calling, then autonomously scrapes and ranks matching roles. Built on Next.js App Router (SSR) with a GraphQL layer over the scraping backend.

  • Next.js
  • Apollo GraphQL
  • GraphQL Yoga
  • Gemini AI
  • SSR
🎬

Featured Project

Entertainment Genie

Video streaming platform where ChatGPT API generates personalized recommendations. Firebase handles auth, Redux manages session state, and TMDB supplies the full movie and show catalog.

  • React.js
  • Redux Toolkit
  • Firebase
  • ChatGPT API
  • TMDB API

04. What's Next?

Get In Touch

I'm currently open to new opportunities. Whether you have a question, a project idea, or just want to say hi — my inbox is always open. I'll try my best to get back to you!