Remote Senior Backend Engineer – FinTech Platform
Summary
Senior backend engineer at a New York FinTech company building and scaling payment, billing, and identity services using Java, Spring, and AWS.
Flex, a NYC-based FinTech company, seeks a Senior Software Engineer (Backend) to own backend systems powering payment, billing and identity services. You will design, implement, test, and scale APIs with a focus on distributed, fault-tolerant systems and data pipelines.
The role requires leadership in API scoping and production rollouts in an agile environment. Ideal candidates have 6+ years in software engineering, 4+ years with Java, and strong experience with Spring, REST, AWS, CI/CD and
