Senior Staff Product Engineer
hyperexponential2 days ago
Warsaw, PolandStaff+
Responsibilities
- Own customer problems from discovery through production, working directly with customers and iterating based on real customer feedback.
- Direct AI agents to draft implementation, tests, and migrations, then review, integrate, and harden the resulting work.
- Design and deliver production systems with strong correctness, performance, resource efficiency, testing, and observability.
- Work across front end, back end, data, and infrastructure as the problem requires.
- Set technical direction on difficult problems and lead cross-cutting or decoupling work adopted by other engineers.
- Hold a high quality bar across other engineers’ work while enabling them to move faster and safer.
- Take accountability for outcomes, raise risks early, and make decisions rather than escalating them.
Requirements
- Experience building and shipping production systems end-to-end, including design, rollout, monitoring, and iteration.
- Experience designing testing and observability for complex, debuggable, and safely evolvable systems.
- Strong systems experience in a polyglot environment; experience with Rust, C, C++, or Python is valued.
- Ability to work outside a primary technical layer, including front end, data, or infrastructure.
- Experience using AI tools as a serious part of software development, with the judgment to review and own their output.
- Demonstrated product and design judgment, including shaping solutions and making sensible decisions under ambiguity.
- At Level 5, experience setting technical direction, maintaining quality across others’ work, and leading cross-cutting initiatives.
Benefits
- B2B contractor arrangement with 25 days of non-working time plus Polish bank holidays.
- Contract of Employment (UoP) option with 26 days of holiday plus Polish bank holidays.
- £5,000 GBP learning and development budget.
- Mental health support and therapy via Spectrum Life.
- Private healthcare options via Luxmed and Multisport access, with terms varying by contract type.
- Company pension and 10 days of company sick pay at 100% salary for the employment contract option.
- Monthly wellbeing allowance via Juno.
- Top-spec equipment, including MacOS or Windows laptops and optional monitors, mechanical keyboards, and other equipment.
- The role includes an initial talent conversation, lead hirer interview, live AI skills assessment, values interview with the CPTO, and CEO meeting.
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.