Founding AI Engineer (£70k-£120k + Equity) at VC-backed AI security startup

Job Title

Founding AI Engineer

Salary

£70k-£120k + 2-4% Equity

Company Description

VC-backed AI security startup

Location

London, UK

Job Description

You will join as the first engineering hire after the founders, taking full ownership of a platform securing autonomous AI agents. You will build ML models for agent classification, manage runtime evidence pipelines, and enforce security policies across various modalities, directly shaping the infrastructure layer of enterprise-grade AI security.

Why this role is remarkable

• Founding equity and massive ownership as the first engineering hire alongside founders from MIT and NASA.
• Backed by top-tier VCs and elite global startup programs including Microsoft and Google for Startups.
• Opportunity to build in AI security, one of the fastest-growing and most critical categories in enterprise tech.

What You Will Do

• Design and implement ML systems for real-time agent classification and detection.
• Build robust runtime evidence pipelines to monitor and secure autonomous systems in production.
• Architect and enforce policy layers across diverse AI models and modalities.

The ideal candidate

• Technical expertise in AI/ML systems, detection and response, or security infrastructure.
• Proven track record of shipping production-grade ML or significant open-source/research contributions.
• High-autonomy builder who thrives in early‑stage environments and handles technical ambiguity with ease.

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