Staff Software Engineer, Banking

Brex•San Francisco, CA

2d•Hybrid

About The Position

Brex is seeking a Staff Software Engineer for its Banking team. This role is crucial in shaping the technical direction of a strategic and complex product area. The Banking organization is responsible for the Brex Business Account product, AP offerings like Bill Pay and Vendors, and the underlying money movement platform and partner integrations. The engineer will work across customer-facing product surfaces and core financial infrastructure, driving architecture, reliability, and execution. This position requires an individual who can balance long-horizon technical strategy with hands-on execution, collaborating with various teams including engineering, product, design, data, operations, risk, compliance, and external partners. The goal is to simplify complex systems, improve reliability, and deliver ambitious product outcomes with operational excellence. The role emphasizes leading through influence, bringing clarity to ambiguity, and elevating the standards for designing and operating banking systems at scale. It's a broad role encompassing architecture, reliability, and product delivery, with opportunities to influence both systems and team collaboration within the Banking organization.

Requirements

8+ years of software engineering experience, including experience operating as a senior technical leader on complex, multi-team initiatives
Demonstrated track record of leading architecture and delivery for large-scale distributed systems in a product or platform engineering environment
Strong systems thinking and the ability to simplify complex technical and organizational problems into clear, actionable plans
Experience improving reliability, operational excellence, and engineering quality in production systems with meaningful customer or business impact
Ability to work effectively across engineering, product, design, operations, compliance, risk, and other cross-functional partners
Strong written and verbal communication skills, with the ability to influence senior stakeholders and align teams without direct authority
Hands-on technical depth and sound engineering judgment, including the ability to dive into implementation details when needed
Experience mentoring senior engineers and helping scale technical leadership across an organization

Nice To Haves

Experience in fintech, banking, payments, ledgering, or money movement systems
Experience building systems in highly regulated environments
Experience leading large migrations, platform consolidations, or service modernization efforts
Experience working with external financial or infrastructure partners and integrating third-party systems into critical product flows
Experience defining technical strategy for org-level investments that span product, platform, and operational workflows

Responsibilities

Lead technical strategy for critical Banking initiatives, balancing long-term architecture with near-term delivery needs across multiple teams.
Drive the design and evolution of reliable, scalable systems for money movement, bank account experiences, payment orchestration, and related financial infrastructure.
Partner cross-functionally with product, design, operations, compliance, risk, and accounting to turn complex business and regulatory requirements into durable technical solutions.
Identify and resolve systemic reliability, quality, and operability issues, improving observability, incident prevention, and engineering standards over time.
Provide technical leadership across teams by driving architecture reviews, aligning stakeholders, and helping teams make strong tradeoffs in ambiguous spaces.
Mentor senior engineers and emerging technical leaders, helping raise the bar on system design, execution, and technical ownership within the Banking org.
Contribute directly when needed — whether through design, debugging, rollout strategy, or implementation — especially for high-stakes initiatives and critical path decisions.