Head of Engineering

trg.; Greater London; On-site; GBP 140,000 - 200,000; Full time

Job summary

trg. is seeking a Head of Engineering to lead a small team of founding engineers in London. You will own the technical vision, drive the product roadmap, and work directly with customers and commercial stakeholders to shape the platform.

You will guide architecture across a cloud-based platform and AI infrastructure, ensuring reliability, observability, and robust DevOps/CI/CD, while addressing security requirements for an enterprise-ready SaaS product.

Qualifications

• 5+ years leading engineers in a startup
• Experience as founding CTO or early engineering leader
• Experience with AI-assisted developer tools
• Experience with enterprise B2B SaaS security (SSO, client security requirements)
• Strong DevOps/CI/CD background with reliability
• Ability to liaise with business stakeholders

Responsibilities

• Lead and grow a team of founding engineers
• Own product roadmap prioritisation and customer engagement
• Lead architecture decisions across a major cloud platform and AI infrastructure
• Own reliability, observability, DevOps and CI/CD for platform

Skills

Engineering leadership

Cloud architecture

DevOps/CI-CD

AI infrastructure

Stakeholder liaison

Tools

CI/CD tooling

Observability tooling

Job description

We’re working with a fast-growing, venture-backed startup building a leading platform in a regulated space, already used daily by dozens of organisations. They’re looking for an experienced, highly technical Head of Engineering to lead their talent-dense team of founding engineers and take ownership of how they build.

This is a leadership role with huge scope - you’ll take on much of what the founding CTO carries today across product, people, process, architecture and security. Fast-paced, high-impact, and genuinely foundational to where the company goes next.

What you’ll do

• Lead and grow a small team of senior founding engineers: 1:1s, growth plans, feedback and hiring
• Own product prioritisation and the roadmap, working directly with customers and commercial stakeholders
• Lead architecture decisions across a major cloud platform, including the company’s AI infrastructure
• Own reliability, observability, DevOps and CI/CD for a platform multiple organisations depend on daily

What they’re looking for

• 5+ years as an engineering leader in a fast-paced startup environment
• Ideally, experience as a founding CTO or first engineering leader at an early-stage company
• Up to date with the latest AI-assisted developer tools and workflows (e.g. Cursor, Claude Code)
• Experience operating an enterprise-ready B2B SaaS product, including SSO and bespoke client security requirements
• Strong DevOps/CI/CD background with a high bar for reliability
• Strong startup instincts, high agency, and confidence liaising with business stakeholders