Frontend Developer / Product Engineer

I buildreal-timeweb products withclean UI and web3 logic.

Focused on React, Next.js, dashboards, analytics, and complex product interfaces.

Available for selected roles· Szczecin, Poland / Remote
ReactNext.jsTypeScriptNestJSRealtimeProduct UI
3+ years
Commercial product development
100K → 1M+ users
Growth driven by referral mechanics I built
Realtime analytics
Charts, sentiment tracking, live feedback
B2B + Web3
Admin systems, mini-apps, payments

Clear interfaces.Complex systems.Reliable execution.

Dashboards, admin tools, growth features and polished UX.

Selected Work

Featured project

PvP Gaming Mini-App

Multiplayer mini-app with Web3 payments, donations, referral logic and live socket-driven matches.

View case study

Experience

2025–2026
Nexa Agency, Product Engineer & Full-Stack Developer
  • Built mobile-first funnels for paid traffic: quiz onboarding, personalized results, app installs.
  • Owned MVP delivery from product hypothesis to production handoff.
  • Shipped growth mechanics: referrals, rewards, creator monetization and prize systems.
  • Integrated AI-driven personalization, Web3 wallet flows, partner dashboards and internal automation.
2024–2025
Nexa Agency, Full-Stack Developer & Frontend Lead
  • Built crypto analytics platform with real-time charts and sentiment tracking.
  • Developed PvP gaming platform with Web3 payments, donations and live interactions.
  • Designed engagement systems: loot boxes, Wheel of Fortune, referral flows.
  • Delivered referral mechanics that drove growth from 100K to 1M+ users.
2022–2024
Symfio Deutschland, Frontend Developer
  • Built B2B admin platform for European car dealerships.
  • Developed dashboards, data tables and complex forms.
  • Collaborated with backend and design teams to ship high-quality features.

I combine visual judgment with engineering discipline.

I build products that hold up in real use: on low-end phones, under load, through eight-hour shifts. Less demo, more of what reaches production and stays there.

  • Product-minded
  • Detail-oriented
  • Production-ready

Let's build something sharp.

I'm open to remote work on products where the frontend actually moves the result.