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Senior Software Engineer

O'Fallon, Missouri💼 Full-time💰 $115,000–$115,000🗓 2026-08-14 → 2026-09-27

Core

Design, develop, test, and maintain secure, scalable software solutions and microservices for Mastercard's global digital payment ecosystem.

Role type

Senior Software Engineer (Backend/Infrastructure)

Builds

Secure, scalable backend services, APIs, and distributed systems for digital payments

Domain

Fintech / Digital Payments

Required skills

Java, Groovy, microservices architecture, API design, CI/CD pipelines, DevOps tools (Jenkins, Docker, Chef), system architecture, performance optimization, observability, secure coding practices

Preferred skills

AI-driven automation, vendor solution selection, offshore team coordination, brownbag session delivery

Technologies

Java, Groovy, Git, Bitbucket, Jenkins, XLR, Chef, Artifactory, Docker Registry

Responsibilities

Architect and develop secure technical solutions adhering to Mastercard standards; lead system development and maintenance to meet SLAs; manage full SDLC including requirements, design, testing, and deployment; perform production incident management and root cause analysis; mentor team members and conduct technical training; coordinate offshore development activities

Seniority

Senior, hands-on IC with leadership responsibilities

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