Mateusz
Janecki
Computer Science student at Cracow University of Technology with hands-on experience across software development, QA and DevOps — currently a full-stack developer intern at Unit-Unicorn, working with Python / Django REST Framework, React and PostgreSQL.
A technical mind with a delivery mindset
I'm a Computer Science student at Cracow University of Technology with hands-on experience across software development, QA and DevOps. Currently I'm a full-stack developer intern at Unit-Unicorn, working in Python / Django REST Framework, React and PostgreSQL.
Previously I completed two R&D internships at ABB, where I built automated, regression and unit tests in C# (Selenium, Appium) and JavaScript (Cypress), and maintained CI/CD pipelines and virtual machines in Azure DevOps. I have a technician background in teleinformatics and computer networks, and as a certified Professional Scrum Master (PSM I) I'm used to working in Scrum teams and communicating daily across QA, development and DevOps.
Languages
Frameworks & Databases
QA & Test Automation
DevOps & Tools
Agile & Collaboration
Networking
Where I've made an impact
Full-stack Developer — Internship
Unit-Unicorn
Aug 2026 — Present
Cracow, Poland
- Implementing cloud file storage synchronisation in Django REST Framework using the Google Drive API
- Fixing navigation, rendering and UI consistency defects in a React single-page application
- Debugging across the stack with browser developer tools, container logs and database queries
- Working with Git feature branches, pull requests and code review; tracking tasks in Jira, documentation in Confluence
Brand Ambassador — iStudies
iSpot · Apple Premium Partner
Sep 2025 — Present
Cracow, Poland
- Representing iSpot's Apple education programme among students and universities; running on-campus activations
- Advising peers on Apple hardware, software and education offers
Marketing Coordinator
Kościuszkon
Dec 2024 — Jun 2025
Cracow, Poland
- Managing social media channels and email campaigns
- Creating and optimising paid Facebook and Instagram campaigns
QA — Internship R&D
ABB
Oct 2022 — Nov 2022
Cracow, Poland
- Performing manual and exploratory tests of a desktop application and Microsoft HoloLens
- Creating automated and regression tests for the desktop application using C#, Selenium and Appium
- Creating unit tests; reporting and tracking defects
- Analysing requirements and development tasks to define the scope of required test validations
- Participating in Scrum meetings and direct communication with QA, Frontend, Backend, IT and DevOps teams
DevOps — Internship R&D
ABB
Apr 2022 — May 2022
Cracow, Poland
- Creating automated and regression tests in JavaScript for a web application using the Cypress framework
- Creating and maintaining CI/CD pipelines in Azure DevOps
- Creating and maintaining virtual machines used as Linux and Windows test environments
- Performing manual tests and validating REST services with Postman
Selected work
Stock Market Demo + Analytics
JavaFX desktop trading simulator with live data & AI analysis
A desktop application simulating a stock trading platform. It fetches live market data from Yahoo Finance and Binance APIs, renders interactive line and OHLC candlestick charts across multiple time ranges, and offers a demo trading account with buy/sell orders, Stop Loss / Take Profit triggers, and portfolio management.
- Live line & OHLC candlestick charts (Yahoo Finance + Binance)
- AI-powered candlestick pattern analyzer for trend prediction
- Automatic PDF tax report (PIT-8C) generation
Academic background
Cracow University of Technology
Bachelor of Science — Computer Science
Upper Secondary School of Communications, Cracow
Technician — Teleinformatics
Credentials & continuous learning
Let's build something together
Interested in collaborating, hiring, or just want to connect? I'm always happy to talk.
Emailmateuszjanecki04@gmail.comPhone+48 537 789 787LinkedInin/mateusz-jGitHubJaneckiGit