Pixel art portrait of Denys Hoptsii

Available for selected opportunities

Denys Hoptsii

Software Developer · React Native · Next.js

I build reliable mobile and web products from first commit to production release.

I’m a product-focused software developer who enjoys turning ambitious ideas into dependable, polished products.

My sweet spot is full-cycle delivery: translating product requirements into architecture, building the mobile client, backend services and admin interfaces, then taking the product through deployment and store releases.

I work primarily with TypeScript, React Native / Expo, Next.js and NestJS. I care about clear ownership, thoughtful collaboration and the small details that make software feel trustworthy.

01

Primary developer on a production marketplace

02

Commercial products shipped across mobile and web

03

App Store and Google Play release experience

JAN 2025 — PRESENT

Software Engineer · Confidential

Delivering production products end-to-end across mobile, backend, web, admin tooling, infrastructure and release workflows. Own features from technical discovery to launch, collaborate with design and product teammates, and coordinate implementation with another developer.

TypeScriptReact NativeNext.jsNestJSPostgreSQL

NDA PRODUCT · 7 MONTHS

Local Services Marketplace

Primary developer for a commercial platform connecting local professionals with customers. Built the Expo mobile app, NestJS backend, public web experience, admin tools and release workflows.

  • Business profiles, portfolios and media uploads
  • Service and location-based discovery
  • Job requests, quotes, saved items and real-time chat
ExpoReact NativeNestJSWebSockets

NDA PRODUCT · 4 MONTHS

Dating & Social Discovery Product

Delivered technical implementation for a production mobile and web product across an Expo client, NestJS API and Next.js admin interface.

  • Authentication and resilient data models
  • Media handling and real-time product flows
  • Deployment, release infrastructure and admin tooling
React NativeNext.jsPostgreSQLPrisma
2026 — 2029

Brno University of Technology

Bachelor of Technology · Computer Science

PROFESSIONAL STUDIES

IT STEP Academy

Computer & Information Sciences and Support Services

Technologies I use to move products from an early concept to a stable production release.

01TypeScript02JavaScript03React04React Native05Expo06Next.js07Node.js08NestJS09PostgreSQL10Prisma11Redis12MongoDB13Tailwind CSS14REST APIs15WebSockets16Git17Vercel18Railway

AI engineering workflow

AI-assisted development, agentic workflows and retrieval systems I use to prototype, ship and iterate faster.

01Claude Code02Cursor03Codex04LangChain05LangGraph06RAG07MCP08OpenAI API09Vercel AI SDK
UkrainianNative
RussianNative
EnglishC1
CzechB2

Have a product in mind?

Let’s build something useful.

I’m open to product-focused engineering roles and selected collaborations across Czechia and Europe.