Senior Software Engineer (Financial Platform)

As a Senior Software Engineer on the Financial Platform team, you will build systems that turn Zipline’s operational activity into accurate, auditable financial records

Flights, deliveries, inventory movements, manufacturing events, and partner transactions must be billed, settled, reconciled, and recorded correctly for Zipline to operate and scale globally

Your immediate priority is strengthening the operational-event-to-financial-record workflow: creating traceable, automated paths from real-world activity through billing, settlement, reconciliation, and ERP recording

You will work directly with Finance, Commercial, Manufacturing, Operations, Data, and Marketplace Engineering to replace manual processes with durable software

Design and build backend services and full stack apps for financial event processing, billing, pricing, taxation, settlements, reconciliation, inventory costing, and ledger workflows

Build idempotent, replayable, ordered, and auditable event-driven systems that trace each transaction from an operational event through accounting

Translate accounting, finance operations, and commercial workflows into scalable software in partnership with domain stakeholders

Integrate operational systems with our custom ERP system, payment providers, tax engines, banking systems, manufacturing systems, and partner platforms

Automate reconciliation and manual accounting workflows to reduce settlement errors, improve financial accuracy, and accelerate month-end close

Own reliable APIs, data models, service boundaries, observability, service-health metrics, and runbooks for correctness-critical production services

Drive technical design, review code and designs, mentor engineers, and lead projects from concept through production- 5+ years building production backend systems and owning reliable services at scale

Willingness to participate in an on-call rotation and improve reliability through observability, incident reviews, and automation

Experience working directly with business stakeholders to understand complex workflows and deliver practical software solutions

Regular on-site presence in South San Francisco to partner closely with Finance and engineering teams

A rigorous approach to consistency, idempotency, transactional integrity, event ordering, failure recovery, and financial correctness

Strong distributed-systems design skills, including thoughtful data modeling, API design, and pragmatic architectural tradeoffs

Prior experience with billing, payments, ERP integrations, reconciliation, accounting systems, ledgers, or marketplace settlements is strongly preferred; it is not required