greenhouse
Senior Software Engineer, Accounting Engineering
Brex
USA
Senior · 5+ years experience
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Responsibilities
- Build and maintain the core accounting platform, including reusable records, rules, mappings, and versioned APIs that Brex product teams and external partners extend without one-off solutions.
- Own ERP connectivity end-to-end, building and scaling reliable integrations with NetSuite, QuickBooks, Xero, SAP, and Oracle, including sync, error recovery, and rate-limit handling.
- Implement customer-facing close experiences for reviewing, configuring, reconciling, and exporting financial activity in our React/TypeScript dashboard.
- Collaborate with Product, Design, Data Science, and Implementation teams to translate complex accounting and ERP concepts into experiences that feel simple for finance teams.
- Design distributed systems where correctness is non-negotiable, making idempotency, reconciliation, traceability, and proactive issue detection first-class parts of the architecture.
- Own problems end-to-end, from user experience and API design to data models, scalability, and ongoing observability.
- Work with ML models in production, integrating predicted GL coding and mappings into accounting workflows while preserving explainability and human review.
- Participate in on-call rotation and maintain high operational standards for mission-critical systems.
Requirements
- 5+ years of full-time software engineering experience with a focus on backend development.
- 2+ years of experience building systems in a domain where correctness and reliability were core requirements, such as fintech, payments, financial systems, or another regulated industry (e.g. healthcare, legal).
- Strong curiosity for digging deep into the technical problems, and a track record of owning significant technical scope and delivering high quality solutions.
- Experience designing APIs, data models, and platform capabilities that serve many different customer workflows and configurations.
- Proficiency in backend technologies (e.g., Kotlin, Java, TypeScript) and comfort with our stack (Kotlin and Micronaut).
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