AI Engineer - Platform/MLOps

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. Backed by a16z, Highland Europe, and Battery Ventures, we’re scaling globally - already trusted by nearly 50 of the world’s largest insurers.

About the hxAI team

At hx, AI is central to how we build software and make decisions across the company. The AI Platform team provides the platform that makes all of this possible. We design, build, and operate the shared systems that allow teams to train, deploy, evaluate, and monitor AI safely at scale.

What you’ll be doing:

• Designing and operating scalable AI infrastructure for LLM inference, prompt management, and evaluation pipelines.
• Building self‑service tools, SDKs, and APIs that empower product teams to move from prototype to production 30% faster.
• Instrumenting production AI/ML workloads with standardised logging, tracing, and evaluation metrics.
• Implementing intelligent routing, caching, and provider optimisation via the LLM gateway.
• Driving adoption of shared platform services to replace bespoke solutions.
• Championing developer experience by delivering comprehensive documentation and responsive support.

What you’ll need to have done:

• Built and deployed production AI infrastructure that scaled to support enterprise‑grade reliability and observability.
• Delivered self‑service tools or APIs that enabled multiple product teams to accelerate their AI/ML development cycles.
• Implemented evaluation frameworks, A/B testing infrastructure, or monitoring solutions.
• Led initiatives to reduce AI compute costs through optimisation strategies.
• Successfully migrated teams from bespoke AI solutions to shared platform services.
• Prioritised and improved developer experience through documentation, support, or workflow enhancements.

You’re unlikely to thrive here if:

• You prefer working in silos rather than collaborating closely with product and engineering teams.
• You are uncomfortable with rapid change or ambiguity in technical requirements.
• You are not motivated to take ownership and drive measurable impact beyond your immediate tasks.

Compensation

At hx, we’re committed to salary transparency. We offer equity across all roles at hx, making it a significant component of total compensation.

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.
• Exceptional opportunities for personal development and growth.

Interview process:

• Initial chat with our Talent team (30 minutes).
• Manager Interview (60 minutes).
• Technical Assessment (e.g., code review, system design) (120 minutes).
• Values Interview with Senior Tech Leadership (60 minutes).

Our commitment to Diversity

hxers 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!