Praveen Kumar

Praveen Kumar

Senior Frontend Engineer · Full Stack

Senior frontend engineer at TestReach. Migrating our app from Angular 12 to 20, rebuilding the design system, and keeping prod stable while we do it. Before that: founding engineer at Jarvio, L3→L4 at Quizizz. I write long internals posts when a runtime or framework surprises me.

Bengaluru, Indiapraveeen.ingithub.com/pkspyder007hello@praveeen.in

Experience

  1. Aug 2025 – Present

    Senior Frontend Engineer

    TestReach

    • Leading an Angular 12→20 migration: updating build tooling, routing, and component patterns across the platform.
    • Built a new design system and component library to replace scattered one-off styles.
    • Rolling out AI tooling (Cursor, internal prompts) to the team while still shipping customer features.
    • Ship UI from Figma to prod; triage regressions when something breaks in the field.
  2. Mar 2025 – Jul 2025

    Founding Full Stack Engineer

    Jarvio

    • Joined pre-product as a founding engineer; built the frontend and CI/CD pipelines from zero.
    • Built agentic workflows powering a chat-based assistant that let Amazon sellers query their seller account data conversationally.
    • Built the UI component layer using shadcn/ui to move fast without sacrificing design consistency.
  3. Jun 2023 – Feb 2025

    Software Engineer, L3 → L4

    Quizizz (Wayground)

    • Promoted to L4 in 2024 in recognition of expanded scope and ownership across the frontend platform.
    • Set up Sentry for the frontend and used it to triage and drive down production error rates, improving visibility into real-world failures.
    • Developed an in-house routing wrapper on top of vue-router to enable richer pageview analytics events.
    • Led the frontend translations project and built reusable packages consumed by both web and mobile apps.
    • Drove large-scale refactors using codemods and AST-based tooling across analytics events and translations.
  4. May 2021 – Jul 2022

    Full Stack Web Developer Intern

    Quizizz

    • Led UI development for longitudinal student-level reporting using Vue.js and Nuxt.js.
    • Built a translation service supporting expansion into new geographies.

Skills

Frontend
TypeScript, JavaScript, Angular, Vue.js, React, Next.js, Nuxt.js, TailwindCSS, shadcn/ui, Design Systems
Observability & Quality
Sentry, Frontend logging & analytics instrumentation, Monitoring, AST-based codemods
Backend & Data
Go, Node.js, Express.js, MongoDB, PDF/document processing
DevOps & Tools
Docker, CI/CD (GitHub Actions), Git, AWS, Google Cloud, Firebase, Linux, Figma-driven design token workflows

Education

B.Tech, Computer Science

Indian Institute of Information Technology, Una

2019 – 2023