Staff Platform Engineer

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.

The Platform team at hx builds the foundation that enables engineering teams to ship secure, scalable applications at velocity. We're evolving towards an AI-first platform where self-service infrastructure, intelligent automation, and reusable components compound developer productivity and operational excellence.

As the Staff Platform Engineer, you will own the technical direction of this evolution. You will define the architecture and engineering standards that others build to, drive coherence across teams, and ensure the platform strategy is aligned to long-term business outcomes.

What you'll be doing:

• Establish a coherent 12–18 month technical direction for the platform, with clearly articulated trade-offs, milestones, and alignment across engineering leadership.
• Define the architectural patterns and standards that enable autonomous and AI-augmented workflows across the organisation.
• Ensure platform defined standards for security, reliability, and operational excellence are embedded into how all teams build.
• Shape the platform roadmap based on feedback, usage data, and a clear-eyed view of where friction exists.
• Influence how the broader engineering organisation thinks about reliability, security posture, and cost efficiency.

What you'll need to have done:

• Defined the architecture, standards, and patterns for the platform domain over a multi-quarter horizon.
• Designed systems, standards, and enablement approaches that multiply the effectiveness of the engineers around them.
• Defined how AI and automation are embedded into the platform at an architectural level.
• Identified architectural, security, and operational risks before they become incidents.
• Actively developed senior engineers through technical challenge, honest feedback, and deliberate exposure to harder problems.

You're unlikely to thrive here if:

• You prefer executing predefined tasks over taking ownership of ambiguous problems.
• You view platform engineering as building infrastructure in isolation rather than treating it as a product.
• You're uncomfortable with rapid change and continuous improvement.

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.
• Private healthcare insurance through AXA.
• Cycle to Work Scheme.

Interview process:

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

If this opportunity resonates with you, we encourage you to apply or share it with your connections!