My small corner of the internet.

Hi, I'm Sudhanshu Ranjan. I'm a senior software engineer with 7+ years building JavaScript and TypeScript applications across insurance, education, and enterprise software.

Ask me about iframes or forms — I've solved my fair share of tricky problems there.

At Fletch, I own frontend architecture and technical direction while staying hands-on. Outside work, I build local-first Android apps and write about the problems I run into.

Away from the keyboard, I enjoy video games, anime, and reading.

For a detailed overview, download my resume.

Experience

Senior Software Engineer
Fletch / Jan 2023 – present
- Own frontend architecture within a five-engineer team for an embedded-insurance platform serving 15+ partners.
- Built the no-code UI proof of concept and led its Next.js runtime architecture, enabling supported partner launches and UI changes without frontend deployments.
- Shipped SSR quote and payment journeys, configurable data transformations and analytics, and MCP-powered chat-to-form prefill.
Software Engineer
Interview Kickstart / Nov 2021 – Nov 2022
- Built the shared react-i18next foundation for the India launch and migrated course pages from Django to Next.js.
- Delivered Razorpay checkout and shared GA4 instrumentation; introduced MSW mocks, Storybook documentation, and UI-package tooling.
Software Engineer, Frontend
Paytm / Aug 2021 – Nov 2021
- Contributed fixes to the AngularJS seller panel and React-based PaytmMall web application.
Software Developer / Frontend Lead
Aptus Data Labs / Jan 2019 – Aug 2021
- Joined as an intern in January 2019, became full-time in July, and progressed from Junior Data Analyst to Frontend Lead.
- Built a React supply-chain planning UI with KPI dashboards and role-based access; led the JavaScript-to-TypeScript migration.
- Introduced critical-flow tests and GitHub Actions/Docker deployments, reviewed code, and mentored developers and interns.