senior full-stack engineer

What We Need A senior full-stack engineer to embed in the team for 6 months and deliver across the squad's full surface area - backend services, web and client-facing surfaces, data pipelines, and experimentation infrastructure. This person will operate as a strong individual contributor within the squad - writing code, shipping features, improving the platform - and should be able to ramp up quickly in a complex, high-stakes codebase where changes directly affect subscription conversion. Scope of Work The specific deliverables will be refined during onboarding, but the engagement is expected to span the teams full surface area: Building and improving Checkout surfaces, primarily web, with awareness that the team also supports Android Backend work on the services that power Checkout flows - including serving layer, API design, and integration with platform infrastructure on GCP Contributing to experimentation and A/B testing infrastructure across frontend and backend Implementing personalisation features that improve the purchase experience Improving observability, instrumentation, and data pipelines that feed funnel analysis and experimentation Working with data engineers and analysts to ensure experiments are properly instrumented and measured Technical Profile Backend - very strong Java , distributed services on GCP.

Deep ability to architect and own services operating at scale. Experience with commerce/subscription system complexity - state machines, downstream constraint