Senior Software Engineer Partner APIs
Listed on 2026-10-02
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Software Development
Backend Developer, Senior Developer, Software Engineer
Flex is a fintech company headquartered in NYC with a distributed team across the United States. This role focuses on designing, building, and scaling services and integrations for payment, billing, identity, and partner integrations.
You will own APIs end-to-end, drive production rollouts, and lead scoping and implementation for the APIs you own. Joining Flex means joining a culture that values owners, precision, and collaboration, with equity, comprehensive health benefits, unlimited PTO, and
This posting is for the Senior Software Engineer, Payments & Partner APIs role at Flex, based in United States.
Step into the Senior Software Engineer, Payments & Partner APIs role at Flex in United States and grow with us.
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