Chief Technology Officer: AI Research Company (Stealth)
Location: UK or US preferred; international candidates considered
Reports to: Founder & CEO
About the company
We're an early-stage AI research and technology company building foundational intelligence for complex, high-stakes decision-making. Our research goes beyond large language models towards artificial judgement: systems that can understand complex environments, reason across disciplines, form strategies and act on them.
That core intelligence powers three applications: enterprise (B2B), regulated legal and consumer. Each has its own demands for scale, security and governance.
The role
We're looking for a CTO to own the technology strategy, architecture and infrastructure behind the group. This is a senior, highly technical role. You'll work alongside the Founder & CEO and the Chief Scientist, and lead the VP Engineering, who owns day-to-day delivery.
What you'll own
- Technology strategy: Set the long-term architecture and investment roadmap across all three businesses, and advise the CEO on major technical decisions and risks.
- Architecture and infrastructure: Design shared, scalable infrastructure covering cloud, hybrid, sovereign and on-prem, multi-tenancy, data isolation and regional deployment.
- AI infrastructure: Partner with the Chief Scientist to turn research breakthroughs into production systems, including proprietary models, knowledge graphs and autonomous capabilities.
- Security and governance: Own group-wide standards for security, resilience and compliance, to the level that major enterprises, governments and regulated industries expect.
- Engineering leadership: Hire, mentor and oversee the VP Engineering, and build an organisation that can scale quickly.
- Technology economics: Manage cloud, compute and inference costs, make build-versus-buy calls, and choose infrastructure partners.
- Executive leadership: Contribute to company strategy, fundraising and board discussions, and represent the company to partners, customers and investors.
What you'll bring
- Senior technology leadership in a high-growth tech company
- Deep expertise in distributed systems, cloud infrastructure and large-scale platform design
- A strong grasp of modern AI infrastructure and what it takes to deploy advanced AI in production
- Experience running shared platforms that serve several products or customer environments
- A track record of leading senior engineering leaders and building high-performing teams
- Strong commercial judgement on technology economics and capital allocation
Nice to have
- Experience at a frontier AI lab, a global tech company or a scaling enterprise software business
- Infrastructure work on foundation models or autonomous agents
- Experience across both B2B and B2C, or in regulated sectors such as finance, legal, government or defence
- Experience scaling a company from early stage to international operations
Who you are
You're a strong technologist and a strategic builder. You can make architecture decisions that will shape the company for the next decade, and you're commercially sharp. You're a true partner to the founder, comfortable challenging and advising. You lead leaders, and you work with high trust, low ego, rigour and pace.
You'll lay the technical foundations of a company opening a new frontier in AI, with real ownership from day one and the chance to bring advanced intelligence into high-stakes, real-world settings.
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