Krzysztof Rudnicki

MSc eng.

Full-stack engineer with over 4 years of commercial experience building web applications. Proficient in React, TypeScript, Angular, and Python ecosystems. Proven track record of independently delivering complete products from design through deployment.

Projects

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CV

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Experience

Full-Stack Engineer · AI Clearing

June 2024 – present · 2 years and 2 months

  • Large-scale file upload platform — Solely designed and delivered a full-stack file upload platform handling 20,000–100,000 files per batch, used daily by clients and contractors, replacing a manual process and significantly accelerating internal workflows. React, TypeScript, FastAPI, Python, SQL
  • AI assistant chat interface — Built an AI assistant chat with voice input, real-time audio responses, and interactive map controls, enabling users to query data and manipulate geospatial objects directly from conversations. React, TypeScript, FastAPI, Python, SQL
  • Platform development and maintenance — Shipped 290+ merge requests across frontend and backend repositories, touching 1,000+ files. Key areas: data configuration tooling, quality-assurance workflows, map visualisations, and internationalisation across 10 locales. React, TypeScript, FastAPI, Python

Frontend Developer · Delta Electronics Sp. z o.o.

November 2022 – July 2024 · 1.5 years

  • EV charger grid configuration dashboard — Solely designed and delivered a real-time configuration dashboard for managing a grid of EV chargers, featuring live energy consumption monitoring via WebSocket and ChartJS visualisations. Documented before implementation and maintained alongside development. Angular, TypeScript, SCSS, Tailwind
  • Charger software test automation platform — Solely designed and delivered an end-to-end test automation platform for EV charger software, covering UI, API, and database layers. Angular, Nest, Postgres (via Prisma)
  • Cable durability test script — Bash script controlling a Teltonika RUT955 router to toggle contactors and move charger cables forward and backward for durability testing
  • Legacy software modernisation — Angular application replacing an older system used to place orders for EV chargers

Junior Full-Stack Developer · Radioactive Rat Sp. z o.o.

December 2021 – November 2022 · 1 year

  • Crowdfunding platform — Developed and maintained a crowdfunding platform, shipping bug fixes and features from tester and client feedback. Primarily frontend (Angular, TypeScript); also built a Twitch bot in Node.js
  • Telemedic kiosk deployment — Deployed a locked-down Ubuntu kiosk for a telemedic Electron app — configured OS, display, auto-start, exit prevention, and event listeners. Authored deployment documentation. Bash, TypeScript
  • Mobile game anti-cheat system — Solely designed and delivered an anti-cheat system for a mobile game: frontend event capture, server-side verification, front-back integration, and data persistence via GraphQL. Nest, TypeScript

Education

Warsaw University of Technology

  • Engineering Degree — Computer Science, 2019–2023
  • Master's Degree — Computer Science, 2023–2026, diploma grade: 5.0/5.0

Skills

Programming Languages
TypeScript, JavaScript, C++, C, C#
Scripting Languages
Bash, Python, SQL
Frameworks & Libraries
React, Angular, FastAPI, Nest, Tailwind, Electron, Ionic
Tools
Git, GitHub, GitLab, Docker, Linux, Node.js, ChartJS, LaTeX
Soft Skills
Leadership, Time Management, Teamwork, Self-directed, Initiative
Languages
Polish — native, English — C2

Volunteering

POLYGON Student Association for Game Developers

  • Vice President, January 2022 – October 2022
  • President, October 2022 – November 2024

Managed the largest student game-development association in Poland, distributing tasks, organising lectures, semester projects, and applying for university funding

Warsaw University of Technology Theatre Group

  • Actor, November 2024 – present

Developing presentation skills, teamwork, and performing under audience pressure

Side projects

  • Phone Focus Mode — GPS-based ADB & Magisk tool that automatically disables non-whitelisted apps within 500 m of home — Haversine formula, hysteresis, fail-safe, state persistence. Bash, Android ADB.
  • Legal hackathon mediator app — Built in 48 hours at a legal hackathon. Mobile-friendly app to describe a lawsuit, estimate cost and duration, and propose a mediator. Angular, Python, Flask.
  • Linux automation scripts — Repository of productivity and system-administration scripts with CI, linting, and pre-commit hooks. Bash, Python.