Staff Software Engineer (Marketplace)

Join Zipline's Marketplace team as a Staff Software Engineer. In this role, you will be responsible for building and maintaining the commercial engine that drives Zipline's delivery network. You will own one or more production services end-to-end, lead cross-functional launches, and mentor engineers. The ideal candidate will have a strong background in building and shipping production distributed systems and web applications, with a focus on transactional commerce, payments, billing, or marketplace systems.

• Assumer la responsabilité de la conception, de la mise en œuvre, du déploiement et des opérations continues d'un ou plusieurs services de production dans la pile commerciale, y compris le portail marchand, les intégrations partenaires, la plateforme de marché, le moteur de facturation, les applications de fulfillment ou les outils de support.
• Diriger les lancements interfonctionnels en définissant les critères de succès, en rédigeant les plans de déploiement et de retour en arrière, en coordonnant avec les opérations sur le terrain, la sécurité/conformité, le produit et les finances, et en possédant la remédiation post-lancement et les métriques de succès.
• Construire et appliquer des contrôles de marché et des outils de politique qui permettent aux opérateurs de gérer en toute sécurité la tarification, l'allocation de capacité et la priorisation, y compris les portes de fonctionnalités, l'échafaudage d'expérimentation et la simulation pré-production.

• Operating intensity and logistics: able to support occasional off-hours launches and urgent production incidents; available for regular multi-day travel to partner sites (up to ~20% travel typical); preferred to be based near the primary office for hybrid work and rapid cross-functional coordination
• Strong systems skills: production-grade API design, data modelling for ledgers, eventual consistency tradeoffs, schema migrations, and designing for idempotency and retry semantics
• Tech stack experience: deep proficiency in one or more of Go, Python, or scalable backend languages; experience with React or similar for merchant-facing apps; familiarity with Kafka, gRPC, PostgreSQL, AWS, observability tools (Grafana, Honeycomb), and build tooling (Bazel) is required for day-one productivity
• Measured outcomes orientation: able to define and hit specific metrics (reconciliation accuracy, onboarding time, MTTR, throughput/latency targets) and to present trade-offs with data
• Must-have traits: rigorous attention to correctness and edge-cases in financial flows, clear bias for measurable ownership and accountability, ability to simplify complex cross-boundary systems into durable abstractions
• Must have shipped transactional commerce, payments, billing, or marketplace systems in production at scale (millions of orders/day or multi-region transactional volume), or equivalent experience operating financial reconciliation and settlements pipelines
• Minimum 5+ years building and shipping production distributed systems and web applications; evidence of ownership across frontend, backend, and data/streaming pipelines
• Demonstrated incident leadership: on-call experience, runbook authorship, performing post-incident root-cause analysis, and driving remediation to prevent recurrence