Senior API Engineer — Global Fintech Scale
Listed on 2026-10-30
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Software Development
Backend Developer, Software Engineer
Block, Inc. seeks an experienced engineer to design, build, and scale customer-facing payment APIs. You will lead high-impact projects and operate critical systems serving global traffic, while shaping the team’s technical direction and mentoring others.
A strong background in payments, distributed systems, and AI-assisted tooling is required. You will collaborate with product and engineering partners across Block to translate payment requirements into reusable capabilities, and contribute to
We are looking to fill the Senior Payment API Engineer — Global Fintech Scale position at Square in San Francisco, CA, United States.
Join Square and contribute to our ongoing work.
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This posting is for the Senior Payment API Engineer — Global Fintech Scale role at Square, based in San Francisco, CA, United States.
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