Senior Backend Engineer — AI-Native Platform (Hybrid)

Brex; San Francisco (CA); Hybrid; USD 192,000 - 240,000; Full time

Job summary

Brex is seeking a Senior Software Engineer for the Task Workflows Platform in San Francisco. This hybrid role focuses on building and scaling backend systems that power core experiences across Brex, including a multi-channel notifications engine, collaboration features, and a flexible workflow rule builder.

You will design scalable APIs and rule-evaluation engines, model data and orchestration logic for domain-specific experiences, and contribute to AI-enabled product developments across the

Qualifications

• 7+ years of professional experience designing, developing, and deploying full-stack products.
• Strong proficiency in backend programming languages (Java, Kotlin, Python).
• Experience architecting and maintaining scalable, high-availability distributed systems.
• Experience designing and optimizing SQL and NoSQL databases, incl. data modeling and performance tuning.
• Experience building and maintaining RESTful APIs and GraphQL services.
• Experience with modern frontend technologies like ES6+, React, TypeScript.

Responsibilities

• Work with engineers across the company to build new features and products end-to-end.
• Own problems end-to-end, considering user experience, data models, scalability, operability and metrics.
• Provide technical leadership by driving roadmap direction, architecture and mentorship.
• Collaborate with Sales and Support to understand customer needs and translate them into technical solutions.
• Tune and polish features to a high degree of excellence.
• Identify and implement reliability and performance improvements.

Skills

Java

Kotlin

Python

SQL/NoSQL

REST/GraphQL

React/TypeScript

Job description

Brex is seeking a Senior Software Engineer for the Task Workflows Platform in San Francisco. This hybrid role focuses on building and scaling backend systems that power core experiences across Brex, including a multi-channel notifications engine, collaboration features, and a flexible workflow rule builder.

You will design scalable APIs and rule-evaluation engines, model data and orchestration logic for domain-specific experiences, and contribute to AI-enabled product developments across the