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Sr. Full Stack Engineer (TSYS/Payments)

📍 Location
Los Angeles
⏰ Job Type
Contract
📅 Posted
June 02, 2026

About the Role

Job Description

A large financial services client is seeking a Senior Full Stack Engineer to join a high-performing team building a new consumer credit card platform for a top global financial services client. This initiative includes standing up a modern card origination ecosystem and integrating with TSYS, third-party payment partners, and FICO for real-time credit decisioning.
The platform will enable end-to-end card lifecycle capabilities—online application, decisioning, issuance, servicing, fraud management, and downstream operations—supported by secure, real-time APIs and event-driven integrations.
This role will own full-stack development across the platform, including building APIs from scratch, developing webhook integrations, and supporting processor stand-up and connectivity (TSYS). The engineer will contribute across card origination, decisioning workflows, servicing, statements, fraud, and data/analytics pipelines.
Key Requirements:

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