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Kumar Saurabh

Kumar Saurabh

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Engineer / Artist. I love building, breaking, and shipping things.

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Experiences

Kagaar.Ai
Kagaar.Ai
Founding Software Engineer
Feb 2026 - Apr 2026
Bengaluru, Karnataka

-35%

Page Load

95+

Lighthouse

+25%

Engagement

-15%

Support Queries

  • Built and shipped a responsive waitlist platform end-to-end using React and TypeScript, reducing page load time by 35% and achieving 95+ Lighthouse performance scores
  • Developed a dynamic Q&A section from concept to production, improving user engagement by 25% and reducing support queries by 15% through intuitive UI and seamless interactions
ReactTypeScriptLighthouseQ&A Systems
CyberxDelta
CyberxDelta
Software Engineer Intern
Oct 2025 - Dec 2025
Bengaluru, Karnataka

+20%

Retention

+40%

UI Consistency

  • Worked with cross-functional teams to redesign the website, improving UI consistency and contributing to a 20% increase in user retention
  • Architected a unified design system, reducing UI inconsistencies by 40% and enhancing user experience
ReactTypeScriptDesign SystemsUI/UX
Suvidha Foundation
Suvidha Foundation
Full Stack Intern
Jun 2025 - Aug 2025
Nagpur, Maharashtra

+30%

Efficiency

+40%

Performance

  • Built frontend using React, TypeScript, and TanStack Query, improving development efficiency by 30%
  • Optimized API calls and implemented caching, improving application performance by 40%
ReactTypeScriptTanStack QueryAPI Design
Open Source Contributor
Open Source Contributor
Sugar Labs, Joplin, kgateway & more
Sep 2025 - Apr 2026
Remote

10

Repositories

112

Pull Requests

72

Merged

8

Still Open

  • Sugar Labs: Delivered 82 pull requests across Music Blocks, Music Blocks V4, and www-v2, covering performance, reliability, testing, accessibility, CI, and developer tooling
  • Sugar Labs: Reduced memory usage by 70-120 MB through lazy bitmap caching and by 50-115 MB by fixing leaked Tone.js synthesizers
  • Sugar Labs: Improved canvas rendering, block interactions, audio loading, retry and timer handling, crash recovery, Lighthouse CI, PR automation, and unit-test coverage
  • Joplin: Authored 18 pull requests with 11 merged across desktop and mobile, improving global shortcuts, E2EE, plugins, sync, exports, editors, localization, updates, and rendering
  • Joplin: Prevented failing plugins from blocking startup, removed JSDOM from the Turndown renderer, reused the master-password flow for E2EE, fixed duplicate code blocks and Ctrl+wheel zoom, and enriched frontmatter exports
  • Kmesh: Authored a macOS development guide to make local setup and contributor onboarding clearer
  • Additional work: Improved kgateway migration documentation and HTTPS security, alongside contributions to FOSSology, FOSSASIA Eventyay, Extralit, and React JSON Schema Form covering scheduler stability, SPDX compliance, authentication flows, and React 19 compatibility
JavaScriptTypeScriptReactElectronPythonCVueGitHub Actions

Projects

Play Video

LFX Issue Tracker preview

LFX Issue Tracker

Live

A tool for tracking issues across repositories participating in the LFX program.

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Play Video

Betterup preview

Betterup

Building

A focused product experience built with a modern full-stack workflow.

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Presentation Generator preview

Presentation Generator

Building

Generate polished presentations with a streamlined, developer-friendly workflow.

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Agentstack preview

Agentstack

Not Started

An AI-focused project exploring practical agent and application workflows.

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GitHub Activity

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Open Source Contributions

Skills & Technologies

ReactReact
NextNext
ExpoExpo
DjangoDjango
ExpressExpress
NodeNode
BunBun
PostgreSQLPostgreSQL
MongoDBMongoDB
RedisRedis
PrismaPrisma
ZustandZustand
Tanstack QueryTanstack Query
PostmanPostman
TailwindTailwind
shadcnshadcn
MotionMotion
GSAPGSAP
JavaScriptJavaScript
TypeScriptTypeScript
PythonPython
C/C++C/C++
SQLSQL
GitGit
GithubGithub
FigmaFigma
DockerDocker
LinuxLinux

Highlights

"you don't have to keep making comebacks, if you stop letting yourself slip."

KUMAR SAURABH