Gabriel Kaszewski

Software Engineer

Who am I?

Hi, I'm Gabriel Kaszewski. I studied Bioinformatics and work as a software engineer. I've been programming since I was 11 and I still enjoy it just as much.

I'm currently working on my first game. If it looks interesting, consider wishlisting it!

By day I work at WPP Media. I also co-founded jestzlecenie.pl, a job marketplace. I self-host all my projects on my own Proxmox/Docker/Traefik infrastructure.

Skills

Angular

Ansible

Axum

Azure

C#

C++

Celery

Django

Docker

FastAPI

GCP

Git

GitLab CI

Kubernetes

Linux

NATS JetStream

Next.js

PostGIS

PostgreSQL

Proxmox

Python

React

Rust

S3

SQLite

TailwindCSS

Traefik

TypeScript

Unity

Commissioned Work

Selected commercial projects and freelance commissions.

Fleet Compass

COMMERCIAL

SaaS solution for modern fleet management.

React

Python

Django

PostgreSQL

+2 more
Read more

Poczuj - Szkoła z Lasu

COMMERCIAL

Interactive music composition app for children.

React

Read more

jestzlecenie.pl

COMMERCIAL

Job marketplace connecting clients with contractors.

Python

Django

PostgreSQL

Celery

+2 more
Read more

Galeria Rumia

COMMERCIAL

Website for shopping mall in Rumia, Poland.

WordPress

Read more

Experience

Co-founder & Backend Engineer

1.09.2024 – Present

jestzlecenie.pl

Co-founded a job marketplace. Built the backend from scratch.

Technologies

Python

Django

PostgreSQL

Celery

Docker

Software Engineer

13.09.2023 – Present

WPP Media | Choreograph | Wavemaker

Advanced from frontend UI development to backend systems engineering, leading infrastructure-agnostic design initiatives.

Backend & Infrastructure1.03.2025 – Present
  • Engineered and optimized backend applications and internal tools using Python, FastAPI, and Django.
  • Streamlined CI/CD workflows and containerized applications with GitLab Pipelines, Docker, and Kubernetes across GCP and Azure environments.
Frontend Architecture13.09.2023 – 1.03.2025
  • Architected scalable microfrontends utilizing Angular and Module Federation, seamlessly integrating standalone internal tools into a unified enterprise shell application.
  • Ensured seamless integration of UI components with Kubernetes-based deployments and Azure Pipelines.

Technologies

Angular

Azure

Azure Pipelines

Django

Docker

FastAPI

GCP

Gitlab CI

Gitlab Pipelines

Kubernetes

PostgreSQL

Python

React

SCSS

TailwindCSS

Typescript

Full Stack Developer

19.05.2021 – 3.02.2023

GIAP

Frontend1.02.2022 – 3.02.2023
  • Engineered a comprehensive, public-facing web application for the City of Gdańsk (geogdansk.pl) leveraging React, TypeScript, Redux, and the ArcGIS JS API.
Desktop / Backend19.05.2021 – 1.02.2022
  • Architected and optimized complex PostGIS/PostgreSQL cross-database comparison queries utilizing Common Table Expressions (CTEs), drastically reducing execution time from over 5 minutes to under 15 seconds.
  • Developed a robust GIS data assertion module using Python and Qt to automatically validate spatial data against strict compliance standards.

Technologies

Python

React

Typescript

PostgreSQL

PostGIS

ArcGIS JS API

Redux

Qt

QGIS

Git

Software Engineer

19.05.2021 – Present

digimonkeys.com

Technologies

Python

FastAPI

Django

PostgreSQL

React

TailwindCSS

Nginx