Senior Principal Architect, CTO Office
Role Description & Technical Scope
In this role you will architect and deliver high-impact AI and agentic systems within IFS CTO Office, contributing from hands-on engineering to shaping technology strategy. You will work across frontier AI initiatives, production-grade workloads, and enterprise integration, collaborating with executives and customers. You’ll move fast to turn ideas into production solutions and then scale or hand over those capabilities. This is a high-signal, high-responsibility role designed for impact across the company and its customers.
Pay / Benefits- hybrid work opportunities
- international travel
- inclusive and diverse workplace culture
- global collaboration
- flexible working style
- opportunity to make a real impact across the organization
- Own end-to-end architecture and delivery on top-priority technical projects
- Write and review production code daily
- Design and ship agentic and LLM-based systems with retrieval, evals, guardrails, and security
- Tackle unfamiliar codebases and domains quickly to deliver real outcomes
- Hire, coach, and raise the technical bar for a small team of applied AI engineers
- Brief executives and senior customer stakeholders on technical outcomes and commercial implications
- 15+ years building software with production-scale architecture ownership
- Hands-on with PRs, debugging agents, and shipping code
- Deep applied AI capability across production agentic systems, RAG/Graph RAG, MCP, and multiple model providers
- Ability to articulate and implement an evaluation strategy for LLM systems
- Experience operating AI systems at enterprise scale (not just PoCs)
- Proven track record delivering across domains, stacks, and time pressure
- Experience hiring engineers and raising a team's technical standard
- Strong written and spoken communication at executive level
- strong communication
- leadership and coaching
- ability to work under time pressure
- Python (expert)
- TypeScript (expert)
- C#/.NET
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Key Details
- Date Posted: 23 Oct 2026
- Location: United Kingdom
- Employment: Permanent
- Workplace: Hybrid
- Domain: General
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Verified Tech EmployerEnterprise technology firm or security consultancy operating across the UK digital defense ecosystem.
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