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ABOUT

I build web applications. Lately, I've been teaching software to see and act.

Most of my work is full-stack: React and TypeScript on the front end, Node.js and Python on the back end, PostgreSQL underneath. Over the last 4 years I've built web and mobile applications for logistics and finance, and my own analytics SaaS, which now has paying customers.

In my own time I build with computer vision and AI agents: software that looks at an image, works out what's in it and decides what to do next. I'm learning in public, so the projects and posts here show what worked and what didn't.

Before software, I studied Automation & Robotics at Wrocław University of Science and Technology, then designed control systems and programmed industrial machines. That work taught me to plan for failure before it happens. My MSc in Computer Science with an AI specialization, with a thesis on evaluating forecasting algorithms, shaped how I approach models today: I want numbers before I trust them.

Based in Warsaw, Poland

Łukasz Olszewski

Now building

Enkaris

Financial analytics SaaS that I design, build and run on my own. It has paying customers, and every decision is mine: from the data model to payments and deployment.

Visit Enkaris

Spatial Maintenance Copilot

OpenCV AI Competition 2026 · AWS compute grant recipient, one of 55 teams selected from 1,500+ submissions. Winners announced November 10, 2026.

Follow the build on the blog

What I work on

Full-stack development

Systems that run real operations: fleet and route management for a logistics company with over 100 vehicles, a multi-seller marketplace with escrow payments, blockchain systems for asset tokenization and settlement, and an enterprise low-code platform deployed at Tesco and Virgin Media. I've built greenfield products from scratch and modernized codebases with years of history.

Vision systems and AI agents

I'm early in AI engineering and treat it as an engineering discipline, not a hobby. I combine structured courses with projects slightly beyond what I already know, finish them, and write up what worked and what didn't. The question that drives me: where modern AI genuinely earns its place in a real system, and where plain code is still the better tool.

Tech stack

01

Frontend & Mobile

  • TypeScript
  • React
  • Next.js
  • TanStack Query
  • Zustand
  • Tailwind CSS
  • shadcn/ui
  • Zod
  • Flutter

02

Backend

  • Node.js
  • NestJS
  • FastAPI
  • PostgreSQL
  • Redis
  • Stripe

03

Cloud & Testing

  • Docker
  • AWS (Fargate, S3)
  • Vercel
  • Turborepo
  • Vitest
  • Playwright

04

AI & Vision

  • Python
  • PyTorch
  • OpenCV 5
  • Hugging Face
  • LangGraph
  • OpenAI & Anthropic APIs
  • RAG & vector search

Background

  • 2020–2022

    MSc, Computer Science

    Academy of Technology and Applied Computer Science

    Thesis: Analysis of the quality of solutions generated by selected time series forecasting algorithms

    A comparison of linear regression, polynomial regression and neural networks on financial time series.

  • 2015–2019

    BEng, Automation and Robotics

    Wrocław University of Science and Technology

    Thesis: Programming a virtual production line with a robotic arm using a Lenze PLC

  • Certificates
    • VLM Bootcamp

      OpenCV Bootcamp

      OpenCV University

    • AI Agents Fundamentals

      LLM Course: Fine-tuning

      Hugging Face

    • CS50P

      Harvard

Contact

Open to frontend, full-stack and AI engineering roles. B2B, Warsaw or remote.

lukols.dev@gmail.com
Email me

Let's work
together

Łukasz©2026
Olszewski