Remote Senior AI Engineer - UK remote in York

About hyperexponential (hx)

At hyperexponential, we’re building the AI-powered platform that enables the world’s most critical decisions in a $7 trillion industry. Our platform brings together data, AI, and human expertise to give insurers the fastest path from submission to decision - helping them move faster, act smarter, and take on more risk with confidence.

About the AI Strike Team

The AI Strike Team exists to reimagine how software is built at hx. This team is redefining the software development lifecycle using AI-native practices, enabling dramatic improvements in both engineering velocity and product quality. Their work spans the entire hx platform, collaborating closely with product, platform, and infrastructure teams to ship meaningful customer value quickly and responsibly.

What you’ll be doing:

• 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.
• Use AI tools to rapidly map dependencies and navigate unfamiliar parts of the hx codebase.
• 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.
• Partner with engineers and technical leaders to share knowledge, mentor teams, and accelerate adoption of AI-native engineering practices.

What you’ll need to have done:

• 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.
• Architected scalable cloud infrastructure and CI/CD systems.
• Implemented automated testing, security, or quality systems.
• Evaluated and integrated modern AI development tooling.
• Led or influenced engineering teams to adopt new technical practices.

You’re unlikely to thrive here if:

• You prefer clearly defined ownership boundaries and predictable roadmaps.
• You are uncomfortable challenging established engineering practices.
• You prefer incremental optimisation of existing workflows.

Compensation

At hx, we’re committed to salary transparency. Our approach is to design compensation that’s competitive in the market, fair across teams, and aligned with the impact our people make. Equity: We offer equity across all roles at hx.

Benefits:

• £5,000 training and conference budget for individual and group development.
• 25 days of holiday plus 8 bank holidays (33 days total).
• Company pension scheme via Penfold.
• Mental health support and therapy via Spectrum.life.
• Individual wellbeing allowance via Juno.
• Private healthcare insurance through AXA.
• Income protection and Life Insurance.
• Cycle to Work Scheme.

Additional perks:

• Top-spec equipment (laptop, screens, adjustable desks, etc.).
• Regular remote and in-person hackathons, lunch and learns, socials, and game nights.
• Quarterly team breakfasts and lunches.
• Exceptional opportunities for personal development and growth.

Interview Process:

• Initial call with Talent team (30 minutes).
• Manager Interview (60 minutes).
• Technical Assessment (system design whiteboard) (120 minutes).
• Values Interview with Tech Leadership (60 minutes).
• Offer.

Our commitment to Diversity

hxer's are at the centre of everything we build. We recognise there is always more to do, and we take responsibility for shaping a workplace that is not only diverse but genuinely inclusive.

Next steps

If this opportunity resonates with you, we encourage you to apply or share it with your connections! Our dedicated talent team reviews all applications, and we promise to provide feedback regardless of the outcome.