Backend & systems
Structure, performance, and the
things you don’t see.
- NestJS Node.js / TypeScript
- PostgreSQL MongoDB / Redis
- TypeORM Prisma / Mongoose
- MQTT Socket.IO / WebSockets
- REST APIs GraphQL / Telegraf
Software engineer
SardorbekSamijonov.
Thoughtful interfaces.
Reliable systems. A little curiosity.
01 / AboutA person behind the code
Curiosity in.
Good things out.
I’m Sardorbek, a software engineer who enjoys turning complex problems into things that feel simple.
I build across the web, from the interface you interact with to the systems that keep it running. My focus is thoughtful development, scalable architecture, and software that solves a real problem.
Outside the code, I explore and write about the human side of the technical world. Always learning. Always connecting the dots.
From a first idea
to the details that make it work.
Web · Real-time · IoT
02 / Selected work2024 — 2026
Built for the
real world.
A few projects, and the
problems worth solving.
01CoddyCamp ExamProctored desktop examinationsEducation · Desktop
A cross-platform exam application with a focused kiosk experience, seven question formats, and real-time integrity monitoring.
- One question renderer for choice, code, drag-and-drop, and file answers.
- macOS and Windows installers with network and focus-loss warnings.
02Transfer-FunsMulti-currency exchange operationsFinance · Telegram
A Telegram-based financial system for an exchange office, with five currencies, four roles, and an append-only transaction ledger.
- Atomic transactions and fixed-order locks to protect concurrent operations.
- Precise decimal arithmetic and idempotent callbacks to avoid duplicate processing.
03Junior KahootLearning, played togetherReal-time · Education
A live classroom quiz platform connecting teachers and students through native WebSockets.
- An eight-second reconnect window lets players return without losing their place.
- Redis-backed rooms and isolated groups with session leaderboards.
04RuleA smarter way to prepare for driving testsMobile · Learning
A driving-test platform sharing one API across iOS, Android, and the web.
- Targeted practice for previously missed questions.
- Personal daily goals, progress tracking, and an exam countdown.
05Golden LuxCommerce, from storefront to deliveryE-commerce · Full-stack
A multilingual commerce platform bringing together the storefront, administration, and API in one monorepo.
- Payme and Click payments with a tracked order lifecycle.
- AI-assisted product translations and Telegram order updates.
06IoTCoreWater monitoring, in real timeIoT · Infrastructure
An industrial monitoring platform that turns live water-level sensor data into useful, accessible information.
- MQTT ingestion, Redis caching, and live WebSocket charts.
- Role-based device management and period-based Excel reports.
07AM81 RepairMaking everyday service easierServices · Full-stack
A complete appliance repair website with booking, service information, and automatic email notifications.
- Frontend and API routes in a single Next.js application.
- MongoDB-backed bookings and animated service browsing.
03 / My toolkitThe right tool for the problem
Under the hood.
From the first pixel
to the last API call.
Frontend & experience
Interfaces that look right
and feel even better.
- React Next.js / Vite
- Tailwind CSS Radix UI / MUI
- TanStack Query Zustand / Redux
- Framer Motion GSAP / Three.js
- React Native Expo / Electron
Tools & delivery
Bringing it all together.
Keeping it running.
- Docker NGINX / Linux
- GitHub Actions CI / CD
- Vercel Deployment
- Jest Sentry / ESLint
- Git GitHub / Figma