About
suspectuso
My name is Grigoriy Zaitsev. This site collects my engineering projects, research and team cases.
AI security and backend. I write services in Go and Python, work on the security of ML systems and help bring AI into real hotel operations.
In projects I care about the whole chain: from the user’s task and architecture to security checks and operations.
What I do
- Backend: APIs, integrations, payments, caching and event processing.
- Application security: OWASP, webhook verification, access control and data protection.
- ML security: adversarial ML, MLSecOps, MITRE ATLAS and OWASP ML Top 10.
Tools
Go, Python, TypeScript, SQL, PostgreSQL, Redis, FastAPI, NestJS, Docker, Linux, Nginx, Prometheus, Grafana, Loki.
Education and practice
I study Information Security at SUAI (GUAP) in Saint Petersburg. I took part in the “AI Technology Security” programme by Sirius × Alfa-Bank, CTFs and hackathons.
Achievements and programmes. More in my resume.
Sport and volunteering
I play basketball actively. In the 2024–2025 season I was on the SUAI men’s team. A separate post collects training, games and photos.
I like taking part in events and helping them happen. At the Professionals 2024 final I volunteered in the business programme, helping with preparation, seating and coordinating participants: the story, with a photo from the awards.
Public mentions
These pages are in Russian.
- SUAI: completing the ML SecOps programme at Sirius, 22 June 2026. About the competitive selection, training with Alfa-Bank and my impressions of the programme.
- SUAI: results of the basketball team, 16 October 2025. I was on the team that took fourth place in the second division of the Saint Petersburg ASB league in the 2024–2025 season.
- SUAI: taking part in a memorial ceremony, 27 January 2025. Together with the university’s “Movement of the First” activists.