Hi, I'm Mateusz.

Open source contributor · pykeio/ort

2026 · pykeio/ort#618 · v2.0.0-rc.14

ort hardcoded CUDA sonames; CUDA 13 renamed them (cudart 13, cublas 13), breaking the CUDA execution provider preload path. Updated CUDA_DYLIBS for Windows and Linux, shipped in ort 2.0.0-rc.14, the release that added RTX 50xx/Blackwell prebuilt binaries.

Senior DevOps Engineer · octo education GmbH

Jul 2026 – Present · Hamburg

Platform and cloud infrastructure. (placeholder description)

Self-employed · Software & DevOps engineering

Jun 2025 – Present · Hamburg · Kleinunternehmer (§ 19 UStG)

Freelance software and DevOps work. (placeholder description)

Open source contributor · Cilium

2023 · cilium/cilium#23953 · v1.13.3

Cilium only validated modules via /proc/modules, so kernels with builtin modules failed its checks (issue #23863: IPv6 broken on Talos Linux). The patch also reads modules.builtin and adds table-driven tests. Backported to v1.13 and shipped in Cilium v1.13.3.

Lead Software Engineer · MaibornWolff GmbH

Aug 2022 – Feb 2026 · Smart Devices / Embedded Development

Automotive software. (placeholder description)

Open source contributor · Deno

2021 · denoland/deno#11324 · v1.13.0

Implemented a CLI flag that disables TLS certificate validation for chosen hosts, wired through the fetcher, HTTP client, net/TLS extensions, WebSocket and workers (22 files). Merged as #11324; shipped in Deno v1.13.0 as --unsafely-ignore-certificate-errors, still in the CLI today.

Senior Software Engineer · MaibornWolff GmbH

Aug 2020 – Jul 2022 · DevOps & Cloud Native

(placeholder description)

Software Engineer (Ausbildung) · thinformatics AG

Sep 2017 – Jul 2019 · Hamburg · with Berufliche Schule ITECH

Internal and customer projects in .NET, Angular and IoT.

Web Engineer · Vanleif

Jul 2016 – Aug 2016 · Remote

Web work for an advertising agency. (placeholder description)

Software Engineer · TruckersMP

Dec 2015 – May 2016

Multiplayer mod for SCS Software games like Euro Truck Simulator 2 and American Truck Simulator.

Open source contributor · Upstream projects

2022 – 2026 · Five projects

Build fixes, compatibility updates and embedding support contributed upstream.

• 2026memexAdded OpenAI-compatible remote embeddings and the full fastembed catalog to memex (v0.26.0).
• 2026pg_textsearchAdded the missing math.h include that broke pg_textsearch builds on some platforms (v0.3.0).
• 2025hcloud-k8sUpdated the hcloud-k8s Talos module for Hetzner cpx22 types and fixed a failing healthcheck.
• 2025asdf-poetryAdded Poetry 2.0 support to asdf-poetry via the virtualenvs.use-poetry-python flag.
• 2022mdevctlFixed mdevctl build.rs to accept a custom rst2man path, so Gentoo rst2man.py works; in v1.2.0.