Tomasz Jarnutowski Tomasz Jarnutowski

Education

• 2019 — 2023

  BSc Computer Science, Internet Engineering

  Warsaw School of Computer Science

Experience

• 2022 — now

  Software Engineer

  Samsung R&D Institute Poland

  Full-stack development of internal web platforms and tools: Django and DRF backends, Angular and the HTMX + Alpine.js frontends, Celery/Huey + RabbitMQ task pipelines and Docker-based deployments. Responsible for UI/UX design and dependency upgrades. On the AI side: prompt engineering for LLM features, data vectorization for semantic search, and creating custom skills for AI coding agents such as Claude Code and Cline. Agile teams with code reviews and CI/CD on GitHub Actions.

  See projects ↓

• 2021 — 2022

  Data, Testing & Web Development

  Voxsoft Sp. z o.o.

  Built and maintained responsive websites for real estate developers and an internal WordPress plugin. Handled data import and cleaning with SQL, Python and Excel, prepared document templates in Word, and manually tested a web application for real estate developers.

  See projects ↓

• Full-stack

  AI Document Audit, Samsung

  Automates the auditing of documentation.

  • AI Audit Platform

    Document auditing and process automation platform with LLM-powered document analysis. I owned the frontend and deployment, maintained the production instance, and worked with the team on the backend (Celery with RabbitMQ) and CI/CD (GitHub Actions). I wrote the prompts for document analysis, and after heavy experimenting with file conversion built my own hybrid converter combining libraries such as Docling and MarkItDown. Document anonymization.

    • Django
    • DRF
    • REST API
    • Angular
    • PrimeNG
    • Tailwind CSS
    • PostgreSQL
    • RabbitMQ
    • Celery
    • GitHub Actions
    • OpenAI API
    • Docker

  • AI Audit Skill

    Skill that helps project leaders verify their documents against reference documents, created on my own initiative. Gathers information from the AI Audit Platform REST API.

    • Claude
    • REST API

  • AI Audit Gatherer

    Helped build a microservice that gathers the data needed for an audit using Selenium and external APIs.

    • Python
    • Selenium

• Full-stack

  AuthorRights Automation, Samsung

  Generates developer productivity and AI-contribution reports from git history, attributing code to AI or people via Co-Authored-By markers. A side project I started on my own initiative and built alone.

  • Web platform

    Multi-repository batch processing and scheduled report runs.

    • Django
    • DRF
    • Celery
    • Angular
    • Angular Material
    • Tailwind CSS
    • PostgreSQL
    • Docker

  • AuthorRights Skill

    Does the same job as the platform, but runs locally on the developer's machine. Uses Python and Playwright.

    • Python
    • Playwright
    • Claude

• Full-stack

  AI Code-Fix Data Platform, Samsung

  Platform that collects, preprocesses and prepares code-fix data for training and running generative AI models, and lets people review and correct it. I worked on reimplementing the proof of concept (FastAPI + React) in Django. Built from four parts:

  • Web platform

    Code review platform with AI-generated fix suggestions, building a database of fixes for popular defects. Indexing and semantic search over embeddings, scheduled Celery pipelines and an OpenAPI-documented REST API, with an HTMX and Alpine.js UI.

    • Django
    • DRF
    • REST API
    • Celery
    • HTMX
    • Alpine.js
    • Tailwind CSS
    • Monaco Editor
    • PostgreSQL
    • Qdrant
    • Sentence Transformers

  • Crawler

    Modular, configuration-driven crawlers that collect code-defect data from static analysis tools such as Coverity, with scheduling, retries and data normalization. I was responsible for refactoring them.

    • Python
    • requests
    • Pydantic Settings

  • Client library

    Wrapper for the web platform: a typed Python client for its REST API with Pydantic validation, async HTTP and retry handling.

    • Python
    • httpx
    • Pydantic
    • pytest

  • Multi-language Code Scope Extractor

    Python library that extracts function and class scopes from Python, C, C++ and Java code using Tree-sitter. Fully typed, tested and published to an internal package index.

    • Python
    • Tree-sitter
    • mypy
    • pytest

• Frontend

  Test Infrastructure Management, Samsung

  Migrated a legacy frontend to Angular, improving performance, maintainability and user experience. Integrated new REST APIs together with the backend team.

  • Angular
  • Angular Material
  • TypeScript
  • RxJS
  • WebSockets

• Full-stack

  Code Health Automation, Samsung

  Collects code-health metrics from Splunk, GitHub and other sources on per-source schedules, aggregates them and publishes reports to Confluence, with an Angular dashboard for monitoring. Configuration-driven and extensible, with retry and recovery for unreliable sources. A side project I started on my own initiative and built alone.

  • Python
  • Django
  • DRF
  • Angular
  • Angular Material
  • RxJS
  • Docker
  • Splunk API
  • GitHub API
  • Confluence API

• Frontend

  nowatkalnia.pl ↗ , Voxsoft

  Responsive website for a real estate developer.

  • WordPress
  • PHP
  • HTML

  Visit nowatkalnia.pl

• Frontend

  sohoresidence.pl ↗ , Voxsoft

  Responsive website for a real estate developer.

  • WordPress
  • PHP
  • HTML

  Visit sohoresidence.pl

• Desktop

  Fanture ↗ , Personal

  Windows tray app for monitoring temperatures and controlling fan speeds, with a UI that feels native to Windows 11. A separate Windows Service owns the hardware and hands fans back to BIOS control when it stops. Ships as a Native AOT build with an installer.

  • C#
  • .NET
  • WinUI 3
  • LibreHardwareMonitor
  • xUnit
  • Inno Setup
  • Astro

  Visit fanture.io

• Frontend

  tojar.io ↗ , Personal

  This website: a dependency-free static CV with light and dark modes, project filtering and themes.

  • HTML
  • CSS
  • JavaScript
  • ESLint
  • Stylelint
  • Prettier
  • GitHub Actions
  • Cloudflare

  Visit website

• Frontend

  Pomodoro Clock ↗ , Personal

  Minimalist pomodoro timer with a to-do list, customizable settings and browser notifications. Installable as a progressive web app.

  • Angular
  • Angular Material
  • TypeScript
  • RxJS

  Visit website Source on GitHub

• Desktop

  Garry’s Mod Content Assistant, Personal

  Desktop tool that installs Garry’s Mod game content in two clicks: finds the Steam directory, scrapes the download links, then downloads and unpacks the content into the addons folder.

  • Python
  • Tkinter
  • Beautiful Soup
  • requests

  Source on GitHub

Skills

• Frontend

  • TypeScript
  • JavaScript
  • Angular
  • RxJS
  • WebSockets
  • HTMX
  • Alpine.js
  • PrimeNG
  • Angular Material
  • Tailwind CSS
  • HTML
  • CSS
  • SCSS

• Backend

  • Python
  • Django
  • Django REST Framework
  • FastAPI
  • Celery
  • Huey
  • Pydantic Settings
  • REST API design
  • OpenAPI
  • Swagger
  • JWT authentication

• AI

  • Prompt engineering
  • LLM integration
  • Data vectorization
  • Semantic search
  • Agents
  • Skills
  • Workflows
  • Claude Code
  • Cline
  • OpenAI API

• Data & ML

  • PostgreSQL
  • SQLite
  • Qdrant
  • Sentence Transformers
  • Docling
  • Beautiful Soup
  • Playwright

• Testing

  • pytest
  • Factory Boy
  • Coverage.py
  • Vitest
  • Karma
  • Jasmine

• Tooling

  • Docker
  • GitHub Actions
  • Git
  • Linux
  • uv
  • Vite
  • Make
  • mypy
  • Ruff
  • ESLint
  • Prettier

• Languages

  Polish (native), English (C1)

Blog

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