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crup/README.md

Rajender Joshi

Engineering leader working across distributed systems, product platforms, and high-performance web foundations.

GitHub · LinkedIn · X · Stack Overflow


I build and lead teams around the engineering systems that make products scale: reliable APIs, clear service boundaries, cloud-native operations, frontend platforms teams can extend, and tooling that makes quality the default.

My work usually sits between service design, distributed systems, runtime decisions, React / Next.js platform architecture, web performance, design systems, and developer experience. I like staying close to the code while leading teams, shaping architecture, coaching engineers, and helping product, design, backend, data, and engineering teams land the right tradeoffs.

📦 Open Source

crup/react-timer-hook @crup/react-timer-hook NPM version NPM weekly downloads NPM license React Timer Hook docs

Small, reusable React timer hook utility for product interfaces, shared component systems, and time-based UI flows.

GitHub · npm · Docs

🧭 What I Care About

  • ⚙️ Backend systems with clear service boundaries, reliable APIs, observable behavior, and room to scale without constant rewrites.
  • 🧱 Product platforms that let teams move independently while still sharing the right standards, libraries, and delivery practices.
  • ⚡ Web performance as an everyday engineering habit: fast pages, stable layouts, Core Web Vitals, SEO-friendly rendering, and fewer regressions after release.
  • 🔍 Quality loops that fit real delivery: tests where they matter, useful monitoring, practical reviews, and release checks that catch the right problems.
  • 🧠 Engineering leadership that stays close to technical decisions, system design, mentorship, planning, and cross-functional tradeoffs.

🧰 Engineering Range

⚙️ Backend, APIs & Data

Node.js Go Java Spring Boot NestJS

REST APIs GraphQL GORM PostgreSQL MySQL Redis

☁️ Cloud, Runtime & Operations

AWS GCP Docker Kubernetes Helm GitHub Actions

⚡ Frontend Platform & Product Engineering

TypeScript JavaScript React Next.js Redux Toolkit

NX Module Federation Storybook Tailwind CSS Design Systems

🔍 Quality & Observability

Jest Testing Library Playwright Lighthouse CI Datadog CloudWatch Sentry

📈 GitHub Activity

Rajender Joshi GitHub contribution graph

✨ Philosophy

  • Build systems, not just screens.
  • Optimize for humans: users, developers, and teams.
  • Scale with intent, not hacks.
  • Keep architecture close to execution.

GitHub Profile LinkedIn Profile X Profile Stack Overflow Profile

Pinned Loading

  1. react-timer-hook react-timer-hook Public

    A lightweight React hooks library for building timers, stopwatches, and real-time clocks with minimal boilerplate.

    TypeScript 1