As the founding CTO of Valteros, you will architect a sophisticated multi-agent platform for cognitive impact assessment and threat simulation. You'll build the technical foundation from scratch, hire the first engineering team, and deliver mission-critical tools to EU government and intelligence institutions to safeguard against modern information warfare.
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CTO/Head of Engineering at Valteros
Valteros is seeking a founding CTO to lead the technical charge in the booming EU defence tech space. In this co-founder level role, you’ll architect a multi-agent platform designed to protect populations from cognitive warfare and digital manipulation. We are looking for a veteran technical leader with deep AI/ML chops and a track record of scaling startups from zero. If you want to build mission-critical technology for EU government and intelligence agencies while owning the entire technical vision and a significant equity stake, this is your chance to shape the future of European sovereign security.
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Location
London, United Kingdom
Compensation
Not Disclosed + Equity
Company
Valteros
Role overview
Defence Tech5–10+ employees
Valteros is a London-based defence startup protecting democracies from information warfare, one of the defining security threats of the decade.
NATO has recognised cognitive security as an emerging domain of conflict, and artificial intelligence and online polarisation are making it harder to counter every year. Our solution: we build multi-agents modelling platforms to simulate the impact of these threats.
We closed a £2M pre-seed round in June.
What you will do
- Architect and build the foundational multi-agent systems for cognitive impact assessment and large-scale scenario simulation.
- Recruit and lead the first 5-10 engineering hires while establishing a high-performance technical culture.
- Partner with EU defence and intelligence customers to ensure products meet rigorous security and compliance standards.
Who this is a fit for
- Proven experience as a CTO or technical co-founder, ideally scaling a startup from seed stage through successful growth.
- Deep technical expertise in AI/ML architectures, multi-agent frameworks, and building complex data-driven decision-support systems.
- Based in the EU with a strong background in defence, national security, or government technology sectors.
Why this role is remarkable
- Co-founder level equity and complete autonomy over technical direction for a mission-critical defence platform.
- Rare opportunity to enter the booming EU defence tech sector at the absolute ground floor of a stealth startup.
- Build technology that directly protects populations from cognitive threats, information warfare, and sophisticated digital manipulation.
How Jack & Jill work together
I get to know what you’re great at, then find roles you’d never find yourself.Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.
I recruit from Jack’s network and make the intro when I spot a great match.And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.
Jack gets to know what you're great at and what you want next, then searches 15 million jobs daily and helps you discover roles at companies like this.
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What happens next?
Jack’s an AI agent for job searching and career coaching. He works for you.
Jill is the AI recruiter working for the company. She recruits from Jack’s network.
If your profile’s a match and Valteros wants to meet, Jill will make the intro. In the meantime, Jack will send you excellent alternatives.