Flex

Senior Staff Software Engineer, Partner Integrations

New York, NY, USA

Senior Staff

HYBRID

Flex is a NYC-based FinTech company on a mission to make rent payment flexible and affordable. As a Senior Staff Software Engineer on the Partner Integrations team, you will own the technical roadmap for APIs, SDKs, and web experiences that connect external partners to Flex for data sharing and payments. This is a hands-on leadership role requiring 10+ years of software engineering experience, including at least 3 years in technical leadership. You will collaborate across Engineering, Product, Design, Infrastructure, Sales, and Partner Success to deliver high-impact integrations. Compensati...

API design and development

SDK development

Technical leadership

AWS cloud applications

Partner integrations

Payment rails

System architecture

Cross-functional collaboration

Stakeholder management

Software engineering (10+ years)

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