Cosimo User

I am a cybersecurity engineer and software developer focused on vulnerability research, binary exploitation, and low-level systems development, with practical experience deploying ICS auditing tools and automating security checks in production environments. My CTF background and academic work have honed reverse engineering, offensive security techniques, and the ability to design resilient testing and simulation environments.

I have built production-capable tooling and systems — from an automated ICS auditor deployed on a corporate network to high-concurrency Go services and a custom 3D engine — and contributed to risk reduction for rail infrastructure through automated testing frameworks and high-fidelity simulations. I thrive on roles where I can apply an offensive security mindset to harden real-world systems and accelerate secure development lifecycles.