FullStack Expertise
From webapps, through Solidity to GPU kernels — we own the stack end to end.
Webuildcomplexsoftware,simply.
Custom, cutting-edge solutions powered by AI, advanced cryptography, and distributed systems — for bold teams solving hard problems.
They trust us
Small team. Big capabilities.
Expert-led development without the overhead
Cabinet Noir is a micro development studio focused on building software solutions for startups and lean enterprise teams.
Security-first engineering
Zero-trust architectures designed with rigorous threat modeling, e2e encryption, Zero Knowledge, and risk surface minimization in mind.
AI Development & Infrastructure
Model architecture design, training, fine-tuning and deployment at scale — powered by our partners' Tier-3 NVIDIA datacenter on the EU network backbone.
Distributed Systems
We design resilient, decentralized systems and dApps for the next generation of web3.
From Idea to Launch in Weeks
We turn ambitious visions into functional products through a sharp — fast, focused, and founder-friendly approach.
Discovery
A short call to understand your needs and turn them into a clear technical plan.
Proposal & Alignment
We send a tailored proposal — once both parties align, we’re ready to start.
Kick-off
We lock in the roadmap, set up the stack, and start delivering — fast, focused, and transparent.
Trusted by the most innovative minds in
What our clients say
Don't take our word for it
They brought not just technical security, but game-theoretic rigor — ensuring fairness and no room for selfish or adversarial behavior.
Johann Polecsak
CEO @QAN PlatformThe team in the news
Discover our latest news and events, fresh from the best media around the globe!
QAN-IBM Partnership
With QAN, a company we co-founded, we worked with IBM to boost cybersecurity with AI.
Find out more
Brussels' Digital Finance Summit
Discover the latest cybersecurity trends from experts from Microsoft, NL, the Luxembourg House of Financial Technologies and more about how to mitigate the risks on D-day.
Find out more
Forbes
The 14yo boy who wanted to hack his teacher's computer and how he became Silur, one of the best hackers in the world
Find out more
The Luxembourg House of Financial Technology
Check out the Spotlight Series on DeFi with experts from the Frankfurt School, the European Blockchain Convention, and more!
Find out more
EU CyberActs Conference
Watch our talk: 'Privacy and Security Controls and Methodology in the New AI Era'
Find out more
Forbes Tech Summit
Zero knowledge meets Forbes. See how we built secure systems with enterprise actors.
Find out more
Bosch Digitalization Days
Sharing insights and tangible takeaways for Bosch's digital transformation
Find out more
Who are we ?
Alexia Lorenza Martinel
'We act as partners, not vendors. Your success shapes ours.'
Connect with us →
Silur (Endre Abraham)
'We code like owners, not outsourcers. We use what we build, internally.'
Connect with us →Other achievements
- Members of the European Commission's AI Office ('AI Technical Risk Mitigations' & 'Risk identification and assessment' Working Groups, 2024)
- Co-organizers of the world's largest Capture the Flag (CTF) event (2023)
- Incubees at Mozilla's Firefox "Fix the Internet" program (2020)
- Recipient of a cypher crafting recognition at the NIST Lightweight Encryption Standard competition (Silur, 2018)
- Research member at MTA Wigner Centre for Physics ('Quantum Computation' & 'Post-Quantum Cryptography' Working Groups, Silur, 2017)
Ready to build something extraordinary?
Discover our work
Cabinet Noir's Portfolio
A glimpse into some of the projects and platforms we've built
Our talks & publications
PQ-RingSIS
Circuit friendly, post-quantum dynamic accumulators from RingSIS with logarithmic prover time
Mainstream hash functions such as SHA or BLAKE, while generally efficient in their implementations, are not suitable for zero-knowledge boolean or arithmetic circuits due to their reliance on CPU designs.
They trust us