IF

Senior Principal Architect, CTO Office

IFShttps://static.whatjobs.com/static/ajCore/img/jobPosting/companyLogo/whatJobs_ob_default.png United Kingdom Posted 23 Oct 2026 Closing: 22 Nov 2026
Permanent Hybrid Featured

Role Description & Technical Scope

Overview

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
Responsibilities
  • 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
Key requirements
  • 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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Employer Profile
IF
IFShttps://static.whatjobs.com/static/ajCore/img/jobPosting/companyLogo/whatJobs_ob_default.png
Verified Tech Employer

Enterprise technology firm or security consultancy operating across the UK digital defense ecosystem.

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