Senior Platform Engineer - Banking & Payments

Better Tomorrow Ventures; New York (NY); Hybrid; USD 200,000 - 230,000; Full time

Benefits offered by this job

Equity package

Hybrid work model

Job summary

AngelList seeks a Senior Software Engineer to join the Banking team. You’ll help design and build foundational banking services, APIs, and ledger workflows that power money movement across the platform.

In this high-leverage role you’ll balance reliability, contracts, and extensibility while working with multiple product teams, compliance, and risk to ship secure and scalable financial infrastructure.

Qualifications

• 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

Responsibilities

• 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

Skills

Backend systems

APIs design

Financial payments

Ledger design

Platform boundaries

Reliability

Developer exp

Startup mindset

Job description

AngelList seeks a Senior Software Engineer to join the Banking team. You’ll help design and build foundational banking services, APIs, and ledger workflows that power money movement across the platform.

In this high-leverage role you’ll balance reliability, contracts, and extensibility while working with multiple product teams, compliance, and risk to ship secure and scalable financial infrastructure.