PROFILE

Kamil Ryś

Full Stack Product Engineer

TECH_STACK

  • 01 TypeScript
  • 02 React
  • 03 Svelte 5
  • 04 Power Platform
  • 05 Python
  • 06 Go
  • 07 Node.js
  • 08 Docker
  • 09 PostgreSQL
  • 10 Redis
  • 11 Tailwind
  • 12 Playwright
  • 13 Git
  • 14 CI/CD
  • 15 System Design
  • 16 AI
EXPERIENCE
CURRENTLY PGE S.A.
LOC Warsaw, PL
GitHub github.com/xcvrys
Linkedin linkedin.com/in/xcvrys

I don't just implement specs. I engineer solutions that drive growth.

— recently delivering a 23% increase in user engagement and an 86% reduction in process latency.

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EMPLOYMENT_HISTORY

PGE Polska Grupa Energetyczna

Full Stack Developer - Project Lead · Jul 2024 – Present

  • ›Zero infra budget. Legacy PP stack. Designed around both.
  • ›14-day process → 2 days. [86% latency drop]
  • ›Lead small team. Full lifecycle ownership.

Web game studio (5city)

Frontend Architect & Game Designer · May 2022 – May 2024

  • ›Custom React component library. Zero external deps.
  • ›WASM + Web Workers physics engine for real-time UI.
  • ›+23% engagement. Shipped to production clients.

Handcrafted Mobile

Frontend Developer · Apr 2022 – Jun 2022

  • ›Figma → pixel-perfect mobile-first interfaces.
  • ›Responsive implementation across device targets.

NASK Incorporated

Python Backend Developer · Jun 2021 – Aug 2021

  • ›mObywatel gov-app backend services in Python.
  • ›REST API logger and maintenance.

Employment Breakdown

PGE S.A. Jul 2024–Now 47%
5city May 2022–May 2024 45%
Handcrafted Apr 2022–Jun 2022 4%
NASK Inc. Jun 2021–Aug 2021 4%

CASE_STUDIES

[01] PGE · React / Power Platform / Go / Python

HR Automation System

Hybrid event-driven React/Power Platform architecture unifying 3 legacy data sources via Go backend. Zero infrastructure budget.

14 days → 2 days · 86% latency drop · ~2K users

[02] PGE · React / Go / Third-Party APIs

Photovoltaic Sales Calculator

Automated 18-step client quote generation by wiring Google Maps, SharePoint, and live pricing APIs to replace manual quoting.

[03] Web game studio (5city) · React / TypeScript / WASM

React Game Engine

Built zero-dependency component library with custom reconciliation. Physics pushed to Web Workers and WASM, eliminating 200ms+ overhead.

+23% user engagement · zero external runtime deps

[04] Project · Go / Svelte / SQLite / LLMs

AI-Powered Job Daemon (Jobd)

Self-hosted asynchronous AI queue decoupling scrapers from rate-limited LLMs. Reactive UI via Server-Sent Events (SSE) for zero-latency streaming.

Self-hosted on constrained hardware (Raspberry Pi)

CERT_LOG

[01] Meta

Front-End Developer Professional Certificate

REG:5BEANAX8JPCD

[02] Google

Foundations of Cybersecurity

REG:LNEHPFPR2RJD

[03] PZSWiR

National Olympiad of Technical Innovation

REG:N/A