Senior Product Engineer
hyperexponential1 day ago
London, United KingdomSenior
Responsibilities
- Design, build, operate, and own backend services in Kotlin or Java in production.
- Translate ambiguous underwriting problems into simple, reliable software and determine what to build.
- Shape APIs, domain models, persistence, reliability, observability, and long-term platform architecture.
- Build expertise in underwriting and challenge requirements when appropriate.
- Design and build agent-assisted workflows while deciding where agents act, advise, or defer to humans.
- Use AI coding tools such as Claude while remaining accountable for shipped software quality, security, and correctness.
- Collaborate with frontend engineers, product partners, underwriters, and client-facing teams.
- Give and receive direct feedback and help raise the engineering bar.
Requirements
- Strong professional experience building and running backend systems in Kotlin, Java, or another JVM language.
- Sound judgment in architecture and system design, including prioritization and long-term technical tradeoffs.
- Evidence of shipping software that solved a real customer or business problem, ideally with end-to-end ownership.
- Self-starting approach to identifying and solving high-value problems.
- Clear communication with underwriters, executives, and engineers.
- Comfort working on ambiguous, open-ended problems without an established precedent.
- Confident and responsible use of AI coding tools with critical evaluation of their output.
- Receptiveness to direct feedback.
- Experience in insurance, underwriting, or another complex regulated domain is helpful but not required.
- Experience across backend and frontend, workflow or decision-support products, agent-assisted products, or direct enterprise-client work is helpful but not required.
Benefits
- £5,000 training and conference budget for individual and group development.
- 25 days of holiday plus 8 bank holidays, for 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.
- Top-spec equipment including laptops, screens, and adjustable desks.
- Remote and in-person hackathons, lunch and learns, socials, game nights, team breakfasts, lunches, snacks, drinks, and office access.
- Opportunities for personal development and growth.
About hyperexponential
hyperexponential builds an AI-driven underwriting and pricing platform for commercial property and casualty insurers, used by underwriters, actuaries, and portfolio leaders. The SaaS system governs decision logic, models complex risks, and plugs into carrier workflows; top global carriers use it for underwriting decisions across $75B+ in annual premium. Founded in 2017 and headquartered in London, the company is privately held.