Senior Platform Engineer, Banking in San Francisco

AngelList manages $171B+ in assets and facilitating investments across over 13k 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

• 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
• Background in financial systems, payments, ledgers, banking integrations, or similar - 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 entrepreneurial energy into how you work

Nice to Have

• Experience with double-entry accounting systems or general ledger design
• Background in highly regulated industries or fintech infrastructure
• Familiarity with event-driven architectures and distributed systems patterns
• Experience building developer-facing tooling, SDKs, or internal platforms

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., 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 at our company. We do not discriminate on the basis of , , , origin, , , , marital status, veteran status, or status.

About AngelList

We exist to accelerate innovation by increasing the number of successful startups in the world. We do this by building the financial infrastructure that makes it easier for more people to invest in world-changing companies.

AngelList is the nexus of venture capital and the startup community. We support $171B+ in assets and have powered investments into over 13,000 startups-over 300 of which are unicorns. Today, 57% of top-tier U.S. VC deals involve investors on AngelList. While our scale is large, our ambition is larger.

If you’re excited to build the future of private markets, come build with us., 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).