Senior Software Engineer, Banking

About the Role AngelList powers the startup economy — managing $171B+ in assets and facilitating investments across over 13,000 startups. At the core of that is our banking infrastructure: the systems that move money, manage accounts, and ensure every dollar is tracked with precision. We're looking for a Senior Software Engineer to join our Banking team. This team builds the foundational components and services that other engineering teams across AngelList depend on — account primitives, transaction pipelines, ledger systems, and banking integrations. You won't just be building features; you'll be building the platform that features are built on. This is a high-leverage role. The systems you design will be consumed by teams across AngelList and serve as the core of a high growth new product vertical. You'll need to think in terms of contracts, reliability, and extensibility — balancing the rigor required of financial infrastructure with the pace of a company that ships fast with a lean team. What You’ll Do Design, build, and maintain foundational banking services and APIs consumed by multiple product teams across AngelList. Own core platform primitives — accounts, transactions, ledger entries, and money movement workflows. Build reliable integrations with banking partners and payment networks (ACH, wires, and related rails). Define and enforce service contracts, data models, and interface boundaries that enable other teams to build with confidence. Improve the reliability, observability, and performance of banking infrastructure at scale.Partner with compliance and risk teams to ensure systems meet regulatory requirements. Contribute to technical direction and architectural decisions that shape how AngelList handles money. Mentor engineers across the organization who build on top of your team's platform. What We’re Looking For 6+ years building backend or full-stack web applications, with meaningful time spent on platform, infrastructure, or foundational systems. Deep experience designing APIs, services, and abstractions intended for consumption by other engineering teams — you understand what makes a good platform boundary. Strong background in financial systems, payments, ledgers, or banking integrations — you've worked in domains where correctness and auditability are non-negotiable. Track record of building systems where "close enough" isn't good enough — audit-ready outputs, not best-effort calculations. Ability to model complex business domains in relational databases with precision, especially in the face of ambiguity and evolving requirements. Experience owning foundational components that other teams depend on — you think about contracts, versioning, reliability, and developer experience. Startup experience or founder mindset — you've built something from scratch, or you carry that energy into how you work. Nice to Have Experience with double-entry accounting systems or general ledger design. Background in regulated financial products or fintech infrastructure. Familiarity with event-driven architectures and distributed systems patterns. Experience building developer-facing tooling, SDKs, or internal platforms. Working Here If you don’t meet every requirement above, we still encourage you to apply. We value complementary strengths and operators who learn by doing. AngelList has offices in a few cities, with our engineering hub in San Francisco. We’re building our engineering and product teams around this hub to make the most of in-person collaboration. We have a hybrid in-office model: teammates come in at least 2 days per week (Tuesdays and either Wednesday or Thursday). Compensation: The compensation for this role consists of a competitive base salary, benefits, and equity package. The base salary for this role is $200,000+ annually but actual will vary based on a number of factors including a candidate’s professional background, experience, and location. Additional details about our Total Rewards package will be provided during the recruitment process. Benefits: We support your life both in and outside of work. Explore our benefits. Learn about Funders & Founders. What Guides Us: At AngelList, we are united in our purpose to accelerate innovation and build the future of private markets. Our beliefs and values shape what we work on and how we create impact. If the below resonate, we'd love to have you with us. Our beliefs. Our values & leadership expectations. AngelList is an equal opportunity employer and we value diversity at our company. We do not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. #J-18808-Ljbffr