Staff Software Engineer (Fintech)

ABOUT US At Benepass we're making benefits easy. We believe people are the most important asset to any company. Traditional one-size-fits-all benefits packages no longer cut it in today's hybrid and remote-first environment. With Benepass, companies can tailor their benefits to the unique needs of their workforce. Through our easy-to-use and highly customizable fintech platform, People teams can implement, administer, and track the benefits that meet employees where they are. Employers design their benefits and perks plan by setting a contribution amount and eligible spend categories. Every employee has their own individual definition of wellness and needs different things to help them be their most productive, fulfilled self. OUR MISSION Helping companies reimagine how companies take care of their people. OUR INVESTORS We are backed by leading investors, including Centana Growth Partners, Portage Ventures, Threshold Ventures, Gradient Ventures, Workday Ventures, and Clocktower Technology Ventures. To date, the company has raised approximately $75 million in equity capital. ARTICLES - Founder Story - Jaclyn Chen https://bit.ly/3FpQ0ti - Benepass Raises $40M Series B https://getbenepass.com/blog/benepass-raises-40m-series-b-to-help-employers-redesign-benefits-for-rising-healthcare-costs CANDIDATE RESOURCES - Benepass | Candidate Resource Page https://docs.google.com/document/d/1_OTFvktl-2SoxPn_tkZzyHECSKM0V14hVZOy1ZdZ8zE/edit?usp=sharing - Benepass Listed on Inc. Magazine's Best Workplaces of 2023 https://bit.ly/3EAXv0Q TEAM & ROLE Benepass is building financial infrastructure that powers how companies fund, control, and deliver benefits globally. We are hiring a Staff Software Engineer to own and evolve the systems at the core of our platform: ledgering, transaction processing, decisioning, and money movement. These systems are responsible for tracking and moving real funds, enforcing complex rules, and maintaining a precise and auditable source of truth. This is not a typical backend role. You will be working on high-integrity financial systems where correctness, consistency, and reliability matter more than raw throughput — and where small mistakes can have real financial impact. This role is ideal for engineers who have built or operated systems in payments, card issuing, wallets, banking infrastructure, or global money movement platforms, and want to take end-to-end ownership of a growing fintech layer. YOU WILL - Design and operate systems responsible for: - Ledgering (double-entry systems, balances, transaction history, reconciliation) - Transaction processing pipelines (authorization, capture, settlement flows) - Real-time decisioning (spend controls, eligibility, rules engines) - Money movement, including support for multi-currency and global transactions - Build systems that are correct by design: - Define and always maintain invariants to ensure correctness under all operational conditions - Idempotent - Strongly consistent where required - Fully auditable - Own the lifecycle of financial transactions end-to-end, including: - State transitions - Failure handling and retries - Reconciliation and reporting - Integrate with external financial partners (processors, banks, networks) and handle unreliable and asynchronous dependencies - Lead architectural decisions and write technical approach documents that clarify trade-offs and long-term implications - Improve system resilience, observability, and operational tooling as volume and complexity grow - Mentor other engineers and help define best practices for building financial systems OUR TECHNOLOGY AND STACK Python, Django, Django Rest Framework, PostgreSQL, AWS, Docker, React, TypeScript REQUIREMENTS - Experience building or operating financial systems such as payments, card issuing, wallets, or banking infrastructure - Deep understanding of fintech and payments ecosystems, including: - Card network fundamentals (e.g., ISO 8583 messaging, authorization/clearing/settlemen