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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior Platform Engineer, Banking in San Francisco - **Company:** Energy Jobline - **Location:** San Francisco, CA, United States - **Experience:** Expert - **Salary:** $200,000.0 - **Contract:** Permanent contract - **Skills:** Accounting Systems, Application Programming Interfaces (APIs), Relational Databases, Distributed Systems, Payment Systems, Management of Software Versions, Backend, Event Driven Architecture - **Published:** August 8, 2026 - **Apply:** https://www.energyjobline.com/job/senior-platform-engineer-banking-san-francisco-31392562 ## About the Role * 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 ## Description 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 ## Related Videos - [Developing the Backend with Stefan Lingler, CTO at Shpock](https://www.wearedevelopers.com/videos/100360-developing-the-backend-with-stefan-lingler-cto-at-shpock) - [Full-stack role-based authorization in 45 minutes](https://www.wearedevelopers.com/videos/312-full-stack-role-based-authorization-in-45-minutes) - [Migrating half a million users to a new payment service provider](https://www.wearedevelopers.com/videos/730-migrating-half-a-million-users-to-a-new-payment-service-provider) - [Inside Bitpanda's Tech Stack: Scaling a European Fintech Leader - Markus Dorner](https://www.wearedevelopers.com/videos/1979-inside-bitpanda-s-tech-stack-scaling-a-european-fintech-leader-markus-dorner) - [Nest.js - TypeScript in the backend can also be clean](https://www.wearedevelopers.com/videos/1033-nest-js-typescript-in-the-backend-can-also-be-clean) - [Platform Engineering vs. DevOps Why not both?](https://www.wearedevelopers.com/videos/885-platform-engineering-vs-devops-why-not-both) ## Related Articles - [Why Upskilling And Reskilling is Important For Developers](https://www.wearedevelopers.com/magazine/428-why-upskilling-and-reskilling-is-important-for-developers) - [Highest Paying Tech Companies for Developers](https://www.wearedevelopers.com/magazine/220-highest-paying-tech-companies-for-developers) - [Where To Find Software Engineering Jobs](https://www.wearedevelopers.com/magazine/396-where-to-find-software-engineering-jobs) - [What’s the Difference Between Frontend and Backend Development?](https://www.wearedevelopers.com/magazine/240-what-s-the-difference-between-frontend-and-backend-development) - [7 Most Popular Web Developer Jobs in Europe](https://www.wearedevelopers.com/magazine/163-7-most-popular-web-developer-jobs-in-europe) - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated)