Engineers, cryptographers, and operators building sovereign digital infrastructure.
UltimaOS is built by a small, independent team of engineers with backgrounds in distributed systems, applied cryptography, and consumer software. We are based in the European Union and operate as an independent European team, without venture capital or strategic investors whose business model conflicts with our privacy commitments.
The core team has shipped large-scale consumer software at companies you have heard of. We know what it takes to keep a service up when millions of users depend on it — and we know what compromises get made under pressure to ship faster.
Our cryptography lead has published on lattice-based signatures, formally verified implementations of TLS 1.3, and side-channel analysis of consumer crypto libraries. We do not invent new cryptography — we deploy what the cryptographic community has standardized and audited.
Operations, customer support, and compliance are run by people based in the European Union. UltimaOS is operated from the EU, our infrastructure is in EU data centers, our primary team is EU-based.
UltimaOS exists because we believe privacy is non-negotiable, that infrastructure should not profile its users, and that European alternatives to American tech should exist on technical merit — not just on jurisdiction.
End-to-end encryption is on for every UltimaOS account. There is no premium tier, no setting to disable it. The default is the secure one, not the surveillance one.
We are self-funded by the founder. No venture capital, no strategic investment from companies whose business model relies on advertising or data brokerage. We are not under pressure to extract more value from users.
We use NIST-standardized post-quantum cryptography and IETF-standardized protocols — public specifications, no proprietary crypto, no backdoors, no obscurity-as-security.
We choose EU infrastructure not out of nationalism but because the legal framework (GDPR, EU AI Act, sovereign cloud) genuinely protects users. Where the EU gets it wrong — like the eIDAS 2.0 traceability push — we say so publicly.
The UltimaOS client runs entirely in your browser — the code that executes is delivered to your device and can be inspected directly in your browser's developer tools. That makes covert modification observable in principle; making it mechanically verifiable, through reproducible builds and signed build manifests, is on the roadmap.
When there is activity to report, we will publish a transparency report listing government requests received and how we handled them.
Updates are cryptographically signed, and clients verify the signature before applying them.
We welcome independent review of the cryptographic implementation. Anyone is free to audit it — we do not gate trust behind a paid audit badge.
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The core team is composed of engineers with backgrounds in distributed systems, applied cryptography, and consumer software. We are based in the European Union and operate as an independent European team.
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Independently, without venture capital. This means we are not under pressure to monetize user data, hit quarterly growth targets, or compromise the cryptography for short-term business goals.
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We hire selectively. Open roles are listed on the careers page when available. We also accept unsolicited applications from senior engineers and cryptographers; write to patrick@ultimaos.com with a short note and your CV.
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Yes. Our advisors and any equity investment are listed on the about page. We do not accept strategic investment from companies whose business model conflicts with our privacy commitments.
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UltimaOS is based in a European Union member state. Our operations, infrastructure and primary team are EU-based.
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Team members disclose any external commitments that could affect their work at UltimaOS. We do not engage in consulting or advisory work that would conflict with the privacy or security posture of the product.
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Yes. The UltimaOS team operates under an internal code of conduct covering professional behavior, conflict of interest disclosure, and security hygiene. External contributors agree to a contributor covenant.
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Email patrick@ultimaos.com with details, or use the responsible-disclosure form on the security disclosure page. We acknowledge within 24 hours and triage within 72 hours.
No ads, no data mining, no trial clock. Individual and family accounts are free — permanently. Organisations pay per seat, and that is what funds it.