Tjark Sievers

Physicist turned developer. Currently working as a software engineer at altona diagnostics.

Website

tjarksievers.de

Github

Employment

- since 09/2025
- Software Application Engineer, altona diagnostics (Hamburg)
- 11/2021 - 03/2024
- Student employee, PHYSnet, University of Hamburg (Hamburg)
- 05/2019 - 09/2021
- IT support, 3S/HiTeC e.V. (Hamburg)
- 09/2017 - 08/2018
- Volunteer service in culture and education, Musikakademie Alteglofsheim (Alteglofsheim)

- 05/2025
- M.Sc. Physics, University of Hamburg (Hamburg)
- - 4/2024 - 7/2024: Stay at Uppsala University
- Final grade: passed with distinction
- 07/2022
- B.Sc. Physics, University of Hamburg (Hamburg)
- Final grade: 1.47
- 07/2017
- Abitur, Werner-Heisenberg-Gymnasium (Heide)
- Final grade: 1.5

quant-met (Python)
github.com/Ruberhauptmann/quant-met
- Software package to study superconductivity in flat-band and multiband lattice systems
- Used to run parallelized parameter scans on the PHYSnet compute cluster
- Fully tested with extensive unit and regression tests
saboga (Python, FastAPI, MongoDB, React, TypeScript)
saboga.tjarksievers.de
- Full-stack web app for exploring data from BoardGameGeek
- Collects and analyzes data on ~30,000 ranked games and ~9 million historic user ratings
- Backend built with FastAPI and MongoDB for efficient data ingestion and querying
- Frontend built with React for data exploration