Mastercard

Senior Software Engineer

Mastercard
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1 day ago
O'Fallon, MO, USASenior
H1B sponsor

Base Salary

$115k - $184k/yr

Responsibilities

  • Design, develop, test, deploy, and support full-stack applications, APIs, microservices, and distributed systems.
  • Translate business and technical requirements into maintainable enterprise solutions.
  • Build user-facing functionality and cloud-based, resilient application architectures.
  • Create and maintain automated unit, integration, and API tests and participate in code reviews.
  • Troubleshoot production issues, perform root cause analysis, optimize performance, and support observability and monitoring.
  • Deliver features from design through production deployment and take ownership of key systems or technical domains.
  • Collaborate with Product, Architecture, UX, Security, and Engineering teams on technical planning and continuous improvement.

Requirements

  • Bachelor’s degree in Computer Science, Engineering, Information Technology, or a related field, or equivalent practical experience.
  • Experience with Agentic AI Development and Spec-Driven Development.
  • Experience building enterprise solutions with Java and Spring Boot.
  • Experience developing REST APIs, microservices, and distributed systems.
  • Working knowledge of React, JavaScript/TypeScript, HTML, and CSS.
  • Experience with cloud platforms, relational databases, and CI/CD pipelines.
  • Strong troubleshooting, debugging, and analytical skills, with the ability to deliver independently while collaborating effectively.
  • Preferred qualifications include experience with Apigee, MuleSoft, Kong, AWS, Kafka, Docker, Kubernetes, Terraform, Splunk, Dynatrace, Grafana, or Prometheus.

Benefits

  • Full-time employees generally receive medical, prescription drug, dental, vision, disability, and life insurance; flexible spending and health savings accounts; paid leave; 16 weeks of new parent leave; up to 20 days of bereavement leave; 80 hours of Paid Sick and Safe Time; 25 vacation days; five personal days; 10 U.S. holidays; 401(k) matching; deferred compensation for eligible roles; fitness benefits; and tuition reimbursement.
  • The listed work location is O’Fallon, Missouri, and the posting states Mastercard intends to fill the position by 01/11/2027.

Tech Stack

Categories

Mastercard

About Mastercard

10,000+ employees

Mastercard builds and operates a global payments network used by banks, merchants, fintechs, and governments, offering card processing, real-time payments, tokenization, and fraud/risk services. It generates revenue from transaction processing and assessment/service fees across more than 200 countries and territories. Founded in 1966 and headquartered in Purchase, New York, Mastercard is a public company listed on the NYSE (ticker: MA).

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