Senior Golang Engineer - AI & Platform Security Location: UK (Remote-first) Level: Senior / Principal / SVP-equivalent Compensation: Highly competitive base discretionary bonus The Opportunity We are assisting with the hire for a Senior Golang Engineer to join a small, elite engineering team within a Tier 1 investment bank building production-grade AI platforms at scale. This is a hands-on engineering role, suited to someone who enjoys building systems, actively attacking them, uncovering weaknesses, and redesigning them with security embedded from day one. The team operates independently with a startup mindset: modern tooling, minimal bureaucracy, and a strong bias toward shipping real products. What You'll Be Doing Building secure, production AI platforms using Golang Actively breaking and stress-testing systems to identify vulnerabilities Conducting ethical hacking and attack simulations on real applications Securing AI-specific attack surfaces (e.g. prompt injection, model misuse, data leakage) Designing and building security tooling and frameworks Embedding security early while maintaining engineering velocity Setting engineering and security standards at a senior level Mentoring engineers on secure-by-design development practices What We're Looking For Strong hands-on experience with Golang in production environments Background in application, product, or platform security Proven experience securing real systems, not just advising on them Ability to think like both a builder and an attacker Cloud-native experience (containers, Kubernetes, modern infrastructure) Interest in AI / GenAI / LLM security (commercial experience preferred, not essential) No prior financial services experience is required. Engineers from big tech, scale-ups, and high-growth startups are strongly encouraged to apply. Why This Role Is Different This is not a compliance or governance role You'll be writing and shipping code, not policies Security is treated as a product and engineering problem, not a blocker High visibility, genuine autonomy, and long-term impact McGregor Boyall is an equal opportunity employer and do not discriminate on any grounds.