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Biraj User

@birajuser

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Frontend Engineer with 12+ years building B2B SaaS and EdTech products in Vue, React, and TypeScript.

India

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What I'm looking for

I’m looking for a frontend-first role where I can lead remote teams and deliver high-performance, accessible UI in Vue/React/TypeScript—while partnering closely with product and design to execute a clear roadmap.

I’m a frontend engineer with 12+ years of experience crafting web applications in Vue, React, and TypeScript. I’ve spent 7+ years at Y Combinator startups (Coursedog and Edyst), joining both as a founding team member and growing from Lead Frontend Engineer to Staff Engineer and Engineering Manager—staying hands-on the whole time.

At Coursedog, I built key product experiences like a drag-and-drop page designer and a public Catalog experience rebuilt to a 95 Lighthouse score (from 35), while leading WCAG accessibility compliance. I also delivered foundational capabilities such as an OAuth 2.0 Authorization Server and a self-service CSV import platform, cutting manual engineering effort by 80%, and replaced a costly PDF pipeline with a managed service, reducing costs by 60%.

I’ve also founded Tidily, a productivity SaaS I took from product design to engineering and launch, reaching a successful exit. Alongside product work, I’ve authored open source JavaScript UI libraries with 1250+ combined GitHub stars, and I’m energized by performance, accessibility, and building teams that ship reliably—often in distributed, remote settings.

Experience

Work history, roles, and key accomplishments

Engineering Manager - Data

Coursedog

Jun 2019 - Jul 2026 (7 years 1 month)

Led Coursedog’s Data Client Experience organization, including building a drag-and-drop page designer, rebuilding the public Catalog experience to a 95 Lighthouse score, and driving WCAG accessibility compliance. Also built an OAuth 2.0 authorization server for AI tool connectivity, a self-service CSV import platform, and reduced costs by replacing a custom PDF generation pipeline with a managed s

Vue.Js TypeScript JavaScript Server Side Rendering Accessibility OAuth Drag And Drop PDF Generation Optimization Engineering Management Performance Management Hiring Remote Team Leadership AI Tool Integration AI assisted Development

Senior Frontend Developer

Edyst

Jan 2019 - Jun 2019 (5 months)

Built the core student learning journey for Edyst’s online learning platform, supporting a product used by 180,000+ learners and helping 40,000+ students secure jobs.

Vue.Js TypeScript JavaScript Web Performance Frontend Development

Founder

Tidily.io

Mar 2018 - Dec 2018 (9 months)

Built and launched a productivity SaaS combining project management, customizable workspaces, daily Kanban, calendars, and themes. Owned the full product lifecycle from design and engineering through launch and a successful exit.

Product Design Kanban Project Workspace Frontend Development

Lead Frontend Developer

Moneyjar

Jan 2018 - Dec 2018 (11 months)

Developed the core investment journey for Moneyjar, designing onboarding, investment, and portfolio creation experiences.

Vue.Js Next.js TypeScript JavaScript Web Performance Frontend Development

Fullstack Developer

JustOPD

Jul 2016 - Jan 2018 (1 year 6 months)

Rebuilt a healthcare appointment platform from the ground up using Laravel and MySQL, modernizing the architecture and delivering the product into production.

Laravel MySQL Web Application Architecture Backend Development