Adeyl Ryzynski System Engineer & Backend Architect. Specialized in High-Performance Computing, Low-Level Systems (C/Go) & Scalable Automation. Ranked 1st in System Programming (Univ. of Lille).
Vinted Monitoring Bot
Automated tracking for 500+ daily listings with real-time notifications. scraping system resilient to rate-limits using Python and AsyncIO.
Web Security Audit
Audited anti-bot resilience (Cloudflare Turnstile). Analyzed logical vulnerabilities (Token Bypass, Race Conditions) and TLS Handshake entropy.
UNIX Mini-Shell
POSIX-compliant interactive shell in C. Process management (fork/exec), IPC (pipes), and system signal handling.
Vinted Bot V2
Complete rewrite for blazing-fast performance. Leverages Go's concurrency, Redis deduplication, and TLS fingerprinting. Docker-ready deployment.
Building High-Scale
Infrastructure.
From designing automated ETL pipelines to optimizing low-level system syscalls, my focus is on performance and reliability.
Software Engineering Intern
- ●Engineered 4 interconnected systems, automating 80% of manual tasks.
- ●Reduced backend latency by 60% via architectural optimization.
- ●Implemented Redis-backed notifications & real-time KPI dashboards.
Real-Time Latency
Global endpoint performance
Technologies & Tools
- Python
- C (Systems)
- Java
- Haskell
- SQL
- TypeScript
- React
- Docker
- Redis
- Mitmproxy
- Charles Proxy
- ETL Pipelines
- Python
- C (Systems)
- Java
- Haskell
- SQL
- TypeScript
- React
- Docker
- Redis
- Mitmproxy
- Charles Proxy
- ETL Pipelines
Let's connect
Feel free to reach out. I'm always open to discussing new projects or opportunities.