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

Requirements

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

Benefits

We support your life both in and outside of work.

Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills & Tools

API designbackend developmentfull-stack developmentfinancial systemspayments integrationledger managementdata modelingrelational databasessystem reliabilityperformance optimization

Soft Skills

mentorshipcollaborationproblem-solvingattention to detailadaptabilitycommunicationleadershipcritical thinkingorganizational skillsentrepreneurial mindset