Senior AI Engineer - UK remote

About the AI Strike Team

The AI Strike Team exists to reimagine how software is built her than layering AI tools on top of traditional development workflows, this team is redefining the software development lifecycle using AI-native practices, enabling dramatic improvements in both engineering velocity and product quality.

Operating as a high‑autonomy group within the wider Technology organisation, the team is tasked with delivering complex product epics significantly faster than traditional teams while simultaneously building the guardrails required to ensure safety, stability, and compliance ir work spans the entire hx platform, collaborating closely with product, platform, and infrastructure teams to ship meaningful customer value quickly and responsibly.

As a Senior member of this team, you will operate across the entire codebase, using AI tools and agentic workflows to rapidly understand systems, ship features, and improve developer productivity. Beyond delivery, you will help translate these AI‑native practices into repeatable patterns that raise the baseline engineering capability of the entire organisation.

• Design and deliver complex product epics at 3–5x the velocity of baseline engineering teams, ensuring high‑quality functionality reaches customers faster without compromising system integrity.

• Architect AI‑assisted guardrails across the SDLC, including autonomous testing pipelines, AI‑driven security reviews, and automated code quality agents that maintain stability while enabling rapid iteration.

• Use AI tools to rapidly map dependencies and navigate unfamiliar parts of the hx codebase, safely delivering cross‑domain improvements without relying on traditional code ownership boundaries.

• Build and evolve AI‑native development workflows, integrating best‑in‑class tooling across coding, testing, CI/CD, and deployment environments.

• Translate successful strike team practices into documented patterns, reusable tooling, and “paved road” workflows that scale across the wider engineering organisation.

• Partner with engineers and technical leaders to share knowledge, mentor teams, and accelerate adoption of AI‑native engineering practices across hx.

• Built or significantly evolved AI‑assisted engineering workflows that measurably accelerated delivery speed while maintaining production reliability.

• Delivered complex product features or systems across unfamiliar codebases by rapidly understanding architecture, dependencies, and operational constraints.

• Architected scalable cloud infrastructure and CI/CD systems that enabled fast, reliable software delivery in production environments.

• Implemented automated testing, security, or quality systems that reduced operational risk while increasing development velocity.

• Evaluated and integrated modern AI development tooling, selecting pragmatic solutions that improved developer productivity and software quality.

• Led or influenced engineering teams to adopt new technical practices, raising standards through mentorship, documentation, and hands‑on collaboration.

• You prefer clearly defined ownership boundaries and predictable roadmaps over navigating ambiguity and moving quickly across unfamiliar systems.

• You are uncomfortable challenging established engineering practices or experimenting with new approaches to software development.

• You prefer incremental optimisation of existing workflows rather than fundamentally rethinking how engineering work gets done.

• If reading our Culture Document leaves you feeling neutral rather than energised, hx may not be the place where you’ll do your best work. We’re building something that asks for commitment and conviction, and we want you to feel excited by the opportunity to grow with us.

At hx, we’re committed to salary transparency. You’ll always have clarity on pay early in the process – our Talent Partner will share details with you during initial conversations – and we’re working towards publishing salary information for all roles globally.

Because we’re building at the intersection of technology/SaaS and insurance, our roles don’t always…