Bartosz Ptaszynski
Sr. Application Security Engineer
Poland
Summary
👤
Senior🎓
Top SchoolBartosz Ptaszynski is a senior application security engineer and software generalist with 15 years of experience building and auditing production systems across startups and enterprise environments. He operates at the intersection of applied security, systems programming, and product engineering—recently focusing on AI-powered systems, agent orchestration, and new LLM-related failure modes. Bartosz has built threat modeling and shift-left practices at scale, shipped self-hosted agent platforms (Glorbo) and a git-native coding agent (stado), and treats the systems he builds as the ones he will later audit. His background spans low-level C++ and systems work through Python, Go, and Elixir, informed by operator experience founding an IoT startup and modernizing large enterprise clouds. He’s pragmatic about security: turning reviews from blockers into habitual engineering practices and briefing leadership on risk trade-offs. Based in Poland, he writes about threat modeling and AI security and is available for consulting on security reviews, vendor assessments, and process design.
16 years of coding experience
16 years of employment as a software developer
Computer Networks & Systems, Computer Networks & Systems at The Witelon University Of Applied Science In LegnicaB.Sc.(hons), Software Development, B.Sc.(hons), Software Development at Munster Technological UniversityBusiness, Business at Genesis Enterprise Programme
Polish, English
Stackoverflow
604reputation
55kreached
2answers
0questions
Github Skills (123)
enumeration10
backend10
middleware10
recording10
elixir10
tricks10
phoenix-framework10
pentesting10
asciinema10
nmap10
iot-framework9
sample-rate9
chromecast9
lorawan9
rancher9
Programming languages (11)
Github contributions (5)
foobarto/stado
Apr 2026 - Jul 2026
Sandboxed, git-native coding-agent runtime
Contributions:6 reviews, 22 PRs, 365 pushes in 2 months
foobarto/glorbo
Apr 2026 - Jul 2026
Contributions:1 release, 5 reviews, 7 PRs in 2 months
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