Callosum
Compliance Lead - Member of Technical Staff
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About Us
We’re living through a Cambrian explosion of intelligence: new models and new chips, each specialised for different tasks, are arriving all at once. The result is a new era for AI, one of radical heterogeneity.
Callosum is the Intelligent Systems Company. We believe the next generation of AI won't be defined by any single model or chip, but by intelligent systems in which hardware and intelligence co-evolve. We are building the infrastructure that unifies heterogeneous compute across the full stack. This opens a new axis of scaling intelligence: a dynamic system that tailors itself to what each workload actually needs, whether that's speed, cost, precision, or whatever unit comes next.
The last era scaled on a different bet: one bigger model, more of the same chip, more data. That bet is running into structural limits. Frontier models offer extraordinary capability at unsustainable cost, one that today's monolithic infrastructure was never designed to serve.
Our founding principle is that intelligence comes from many specialised systems working together, not from any single component. We build the software orchestration layer that co-evolves models, workflows and silicon into one system, delivering inference tailored to every workload, and demonstrating orders-of-magnitude leaps in capability and cost.
Because our software spans the full stack, our engineering team works directly with heterogeneous accelerators and frontier silicon, including Cerebras, d-Matrix, Intel, NVIDIA, AMD, Normal Computing, Tenstorrent, GreatSky, and Mixx. We are not stopping at today's chips: each new generation of silicon unlocks algorithms that couldn't run before, and we intend to be first to them, every time. If we get it right, it will belong to everyone building on it - not to any single vendor.
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In our latest funding round, we raised $100M, led by Atomico with participation from Plural, DCVC and the UK Sovereign AI Fund’s first investment. With this, we are building the infrastructure for the next era of intelligence.
We are engineers and scientists based in London, working across the full depth of the stack. We are curious, intellectually honest, and building what doesn't exist yet. If you thrive on uncharted territory and are energised by the scale of the challenge, we'd love to hear from you.
About the Role
Callosum operates across a broad technical surface: APIs used by customers directly, orchestration software deployed across heterogeneous clusters, agentic systems with access to tools and data, and physical compute infrastructure that we operate ourselves. These products are sold into different industries, deployment environments, and jurisdictions, each bringing different expectations around how systems are governed, evidenced, and approved.
This role owns how Callosum navigates that landscape. You will determine which standards and regulatory requirements matter, translate them into concrete expectations for the business and engineering teams, and own the processes that demonstrate we meet them. You will lead certifications, customer assurance, and regulatory readiness end-to-end, while building the compliance function that allows the company to enter new markets without pushing that complexity onto individual engineers.
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What You'll Do
- Own and continue our certification and assurance roadmap across frameworks such as SOC 2, ISO 27001, ISO 42001, and emerging AI standards
- Run certifications end-to-end, defining scope, coordinating remediation and evidence gathering, and managing auditors through to completion
- Assess requirements for new markets and deployments, translating regulation into concrete implications for our products, infrastructure, data, and operations
- Lead customer and external assurance processes across questionnaires, audits, evidence requests, contractual commitments, and regulatory reviews
What Sets You Apart
- Experience personally taking a major certification, regulatory, or customer assurance process end-to-end
- Experience leading compliance for infrastructure, platform, AI, or other technically complex products
- Strong enough technical judgement to turn abstract requirements into practical, buildable actions for engineering teams
- Experience operating across regulated customers or multiple jurisdictions, with good judgement about which controls materially matter
What We Offer
- Competitive Salary, determined by skills and experience
- Equity & Ownership
- Private healthcare
- We offer Visa sponsorship and relocation benefits to hire the best in the world
- We work in person at our London office. You'll have the tools, space and setup to do your best work, and if you have specific needs, just tell us
- We're committed to building an inclusive workplace where everyone feels welcome, and believe in equal opportunities for all.
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