Eric Jingryd
Rust Developer · Security Engineer
Göteborg, Sweden | Open to Remote
I build secure systems in Rust - from authentication frameworks and system hardeners to desktop applications and CLI tooling. Every project starts with the same question: how do we make this safe by default?
Quick Stats
CI Security
Passing
All checks verified
Open Source
12 Repos
Public on GitHub
Test Suite
190
Powering this site
Focus
Security
Every layer, every project
Featured Projects
What I've been building
Raven Nest MCP
SecurityA pentesting toolkit that runs as an MCP server. Wraps 16 security tools plus Metasploit Framework (34 MCP endpoints) behind a 6-layer safety architecture, with session-aware context budgeting for local AI models.
Raven Nest Client
SecurityTypeScript MCP client for the Raven Nest pentesting server. JSON-RPC 2.0 over stdio with interactive REPL, tab completion, one-shot CLI, and 100 tests covering all 34 server tools (39 unit, 61 E2E).
Linux System Hardener
SecurityComprehensive security automation for Linux. 8 hardening plugins, Ed25519-signed checkpoint rollback, multi-distro support (Ubuntu, Debian, Fedora, RHEL, Arch, openSUSE), 714+ tests across the workspace. CLI plus Tauri desktop plus Trunk WASM web UI. Published on the AUR.
BitNet Toy
AlgorithmsHand-rolled BitNet b1.58 in pure Rust: tensor with AVX-512/AVX2 SIMD matmul, autograd, ternary quantisation with straight-through estimator, transformer (RMSNorm, RoPE, SwiGLU), training loop, and a CUDA back-end with cuBLAS int8 GEMM on Ada tensor cores. No third-party ML dependencies.
Security-First Portfolio
SecurityUltra-secure portfolio website with production-grade JWT authentication, RBAC, rate limiting, and OWASP security headers. Built to demonstrate security engineering expertise.
Technical Skills
Where I spend my time
Security
- • Authentication & Authorisation
- • Cryptography (Argon2id)
- • OWASP Top 10 / ASVS
- • Penetration Testing
- • OSINT & Threat Analysis
Backend
- • Rust (Actix-web)
- • TypeScript (Bun)
- • PostgreSQL & SQLx
- • MCP Server Development
- • RESTful + JSON-RPC
Systems
- • Linux (Arch daily driver)
- • Virtualisation & Containers
- • Bash & Shell Scripting
- • systemd & Service Management
- • Kernel Hardening
ML & Performance
- • Machine Learning (Rust + CUDA)
- • cuBLAS / Tensor Cores
- • AVX-512 SIMD
- • Transformer Architectures
- • Quantisation (BitNet b1.58)
DevOps
- • Git & GitHub
- • CI/CD (GitHub Actions)
- • Docker Compose
- • Automated Testing
- • Infrastructure as Code
Frontend
- • HTMX (Hypermedia)
- • Tauri Desktop
- • Tailwind CSS
- • Alpine.js
- • Accessibility (a11y)
Exploring
- • Kubernetes
- • Distributed Systems
- • Cloud Infrastructure
- • WebAssembly
Let's Build Something
I'm looking for a team that cares about code quality, security, and having a good time doing it. Based in Göteborg, open to remote - backend, security engineering, or DevSecOps.