Bartosz OsiejSystems Engineer
I build production-grade systems from bare metal up — a commercial voxel game engine with embedded neural networks (Rust + wgpu), real-time eBPF kernel telemetry for Linux security, and a custom programming language with multi-target compilation.
🚀 Featured Projects
Six production-grade systems, each solving a hard problem end-to-end.
VIVIA: Beyond the Known
Commercial voxel survival engine — procedural world with real-world NASA climate data, embedded MeMLP neural network, multiplayer TCP networking, procedural audio, and a full mob system with 60 species. Shipping on Epic Games Store.
Talus — eBPF Endpoint Security
eBPF endpoint security agent for Linux — detect ransomware behaviour, respond at the kernel edge. Kernel-side tracepoints (aya-ebpf), per-CPU perf buffers, sliding-window heuristic, automated SIGKILL response, and a 7-panel FrankenTUI dashboard.
Externum Language
A custom programming language that compiles to Python, Bash, and binary — with a REPL, module system, standard library, OOP, generators, and a browser playground via WebAssembly (Pyodide). 120/120 tests passing.
CyberForge
Four Rust security tools as one workspace — port scanner, web scanner, hash cracker, packet analyzer. Each shipped separately on crates.io. 29/29 tests green.
QuantumShield
Post-quantum file encryption CLI — ML-KEM-768 key exchange + AES-256-GCM + HKDF. NIST FIPS 203 compliant, fuzz-tested. Quantum-safe before quantum computers arrive.
Fortis
Bare-metal RISC-V measured boot — SHA-256 + ML-KEM-768 chain of trust. Real crypto on real hardware (QEMU). Proof of concept for Caliptra-style root of trust. 51 KiB binary, zero heap.
⚡ Core Competencies
Let's build something
I'm looking for a systems engineering role where I can work on hard problems — kernel code, game engines, compilers, or distributed systems.