Sr. Full Stack Engineer (TSYS/Payments)

Insight Global
Los Angeles, United States of America
13 days ago

Role details

Contract type
Permanent contract
Employment type
Full-time (> 32 hours)
Working hours
Regular working hours
Languages
English
Experience level
Senior

Job location

Los Angeles, United States of America

Tech stack

API
Azure
Continuous Integration
First Data
Fraud Prevention and Detection
Software Engineering
Systems Integration
.NET Core
Event Driven Architecture
Kubernetes
Kafka
Api Design
REST
Webhooks

Job description

A large financial services client is seeking a Senior Full Stack Engineer to join a high-performing team building a new U.S. 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.

Requirements

Strong credit card / payments domain experience (issuer side preferred)

Hands-on experience with TSYS or similar card processors

Expertise in .NET Core, Azure, REST APIs, and event-driven integrations

Experience building APIs/webhooks from scratch and integrating external partners

Kubernetes, CI/CD, and end-to-end automation experience

Ability to partner across business, product, and technical teams

This is a highly hands-on role focused on solution design, development, and delivery. The ideal candidate brings deep technical expertise, strong domain knowledge, and the ability to lead complex, cross-functional builds in a real-time payments environment., * 10+ years of full stack software engineering experience

  • Strong consumer credit card (issuer-side) experience across full lifecycle (origination, decisioning, authorization, servicing, fraud)
  • Proven experience building and supporting real-time payment/transaction systems
  • Hands-on experience with TSYS or similar card processors (FIS/First Data), including integrations and processor connectivity
  • Deep expertise in .NET Core, Azure, and API-first development (REST APIs, webhooks, real-time integrations)
  • Experience with event-driven architecture (Kafka or similar), Kubernetes, and CI/CD in high-availability financial systems
  • Banking experience

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