About me

I build web and mobile applications for startups, entrepreneurs, and small businesses. I help turn an initial idea into an MVP and scale it into a mature product. I work primarily in the JavaScript/TypeScript ecosystem — React, React Native, and Node.js.

I have more than six years of commercial experience in product development, contracting, and leading small projects and teams.

How I can help

  • Designing and building MVPs and complete products (SaaS, internal tools, and B2B portals)
  • Refactoring and modernizing existing frontends for better developer experience, performance, and structure
  • Integrating hardware, Bluetooth, and audio into web and mobile applications
  • Architecture design, code reviews, and establishing development processes for startups
  • Short-term senior developer cover or support with launching a new project
  • Automating internal processes with AI workflows

Professional experience

Full Stack Engineer

quantumspring.ai
Dec 2025 – Present · 7 months
  • Owned the end-to-end development and delivery of a law firm management system.
  • Fully owned the design and development of a custom system for SNESS, from business analysis through delivery.
  • Worked on a restaurant KYC application enabling highly personalized guest experiences.
  • Worked on Redesign.page, a tool for redesigning and iterating on websites.
  • Contributed to Echota.ai, an AI product for working with voice and audio content.
  • Designed and implemented full-stack product features from initial brief through production release.
  • Built LLM integrations and agentic pipeline workflows.
  • Contributed to product discovery, business analysis, technical specifications, delivery planning, and release ownership.

Full Stack Developer

Sentien
Aug 2023 – Dec 2025 · 2 years 4 months
Prague, Czechia · Remote
  • Developed a cross-platform React Native application for customizing a Bluetooth headset, simplifying connection and setup to make the product easier to use.
  • Implemented a tool for managing and restricting access to AI API keys across multiple teams, with usage limits and auditing, enabling the company to experiment with AI services more safely.
  • Built production-line testing software: an Electron application for a physical test device, a Cloudflare Workers backend with MongoDB, and a results dashboard that made manufacturing issues easier to identify.
  • Developed an extensive Android proof of concept exploring the limits of integrating Android with a custom Bluetooth headset, including different ways to control the phone and experimental voice interactions with AI assistants. The result validated the technical possibilities and clarified which scenarios made sense as product features.
Tech stack: Android, MongoDB, Cloudflare, React Native, Electron, Web Audio, audio analysis, Web Bluetooth, native Bluetooth, AI agent workflows

Senior Frontend Developer / PM

Softopus s.r.o
Feb 2023 – Jul 2023 · 6 months
Remote
  • Joined an established Next.js and Magento e-commerce project with an overloaded backlog. Worked with the client to reprioritize it by business impact across checkout, cart, and sign-in, focusing effort on issues affecting revenue and support.
  • Fixed critical purchase-flow issues involving the cart, login, and order management that caused abandoned orders or unnecessary support requests, resulting in more stable seasonal operations and fewer incidents.
  • Supported project management on behalf of the employer by tracking development progress and converting client requirements from regular calls into clear user stories.

Project Lead - Project

Samedaylogistics Group
Dec 2022 – Mar 2023 · 4 months
Remote
  • Led the development of a fully functional shipment-tracking prototype built with React and Firebase. It recorded shipments, their statuses, and movement history, and included email notifications and a simple customer interface.
  • Owned client communication, including gathering requirements, clarifying them, and translating them into concrete user stories.
  • Led and mentored a junior colleague, assigned work, reviewed code, and helped establish basic standards for the codebase and development process.
  • The prototype served as an icebreaker for digitization, showing the parent company's leadership what centralized shipment tracking and automated customer updates could look like.

Frontend Developer - Product

Dayswaps
Jun 2021 – Jan 2023 · 1 year 8 months
  • Transformed a large, fragmented codebase into a modular, maintainable React and TypeScript frontend with a clear architecture.
  • Gradually reduced technical debt by removing duplicate code and introducing a design system and shared components.
  • Worked directly with founders and helped turn ideas into concrete user stories and technical solutions for new parts of the system.

Frontend Developer - Project

PRINCIPIA SOLUTIONS s.r.o.
Apr 2020 – May 2021 · 1 year 2 months
  • Contributed to applications for the National Library in Prague, modernizing the UI, implementing components, and working with large datasets under strict security requirements.
  • Collaborated closely with the backend team on API design and integrations.

Frontend Developer

MoroSystems · Full-time
Apr 2019 – Jun 2020 · 1 year 3 months

Junior Frontend Developer

MONET+, a.s. · Full-time
Nov 2016 – Dec 2017 · 1 year 2 months

Technologies: React · React Native · TypeScript · JavaScript · Next.js · Node.js · Python · Django · Electron · Android · Kotlin · MongoDB · PostgreSQL · Firebase · Cloudflare · Redux · Zustand · Tailwind CSS · Web Audio · Web Bluetooth · Native Bluetooth · AI workflows · Git · CI/CD