Senior Golang Engineer - AI andamp; Platform SecurityLocation: UK (Remote-first) Level: Senior/Principal/SVP-equivalent Compensation: Highly competitive base + discretionary bonusThe OpportunityWe 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 DoingBuilding secure, production AI platforms using GolangActively breaking and stress-testing systems to identify vulnerabilitiesConducting ethical hacking and attack simulations on real applicationsSecuring AI-specific attack surfaces (eg prompt injection, model misuse, data leakage)Designing and building security tooling and frameworksEmbedding security early while maintaining engineering velocitySetting engineering and security standards at a senior levelMentoring engineers on secure-by-design development practicesWhat We''re Looking ForStrong hands-on experience with Golang in production environmentsBackground in application, product, or platform securityProven experience securing real systems, not just advising on themAbility to think like both a builder and an at