Senior Software Engineer

Mastercard
United States
Workplace: OnsiteFull timeUSD 115,000 - 184,000 annuallyFunction: Software EngineeringSkills: ["Communication","Problem-solving","Analytical thinking","Collaboration","Mentoring"]

Join Mastercard’s Transaction Stream team in O’Fallon to design, build, test, and enhance software that powers real-time payment capabilities at global scale. You’ll develop scalable test automation frameworks and validation systems, contribute to architecture discussions, and embed secure coding and security testing into CI/CD. The role includes end-to-end development and collaboration in Agile environments, along with performance engineering and production troubleshooting.

Loading

Loading job details...

Preparing the role view and application actions.

FursaFursa
Mastercard
Mastercard
1 month ago

Senior Software Engineer

✓ Verified Job

Canonical indexed version, validated from employer's careers page.

Source: Company careers pageValidated by: Fursa AI
Status: Live

Job Summary

Join Mastercard’s Transaction Stream team in O’Fallon to design, build, test, and enhance software that powers real-time payment capabilities at global scale. You’ll develop scalable test automation frameworks and validation systems, contribute to architecture discussions, and embed secure coding and security testing into CI/CD. The role includes end-to-end development and collaboration in Agile environments, along with performance engineering and production troubleshooting.
Location: United States
Workplace: Onsite
Employment Type: Full time
Job Function: Software Engineering
Seniority: Mid level

Key Responsibilities

  • •Design, develop, and maintain scalable test frameworks and automation solutions aligned with enterprise architecture standards.
  • •Translate business and system requirements into technical solutions, test strategies, and validation models.
  • •Contribute to system architecture discussions to ensure solutions are testable, observable, secure, and performant.
  • •Develop and execute testing strategies across unit, functional, integration, system, and performance levels, including performance engineering.
  • •Integrate secure coding practices and security testing into CI/CD pipelines, and conduct/lead code reviews and troubleshooting for production issues.

Pay and Benefits

Salary: USD 115,000 - 184,000 annually
Perks:Health InsuranceDentalVisionDisabilityLife Insurance401kPaid LeavePaid SickGym MembershipPaid Holidays

Key Requirements

  • •Experience building applications and REST APIs using Java, Spring Boot, and Spring Data JPA.
  • •Strong computer science foundation in data structures, algorithms, and object-oriented design.
  • •Ability to write clean, secure, testable code and contribute to unit, service, and integration testing.
  • •Comfort working with SQL and relational data concepts.
  • •Experience with test automation, CI/CD integration/deployment (Jenkins / XLR), and code coverage tools (Sonar, Clover), including performance testing.
Experience:PaymentsTransaction processing
Skills:CommunicationProblem-solvingAnalytical thinkingCollaborationMentoring
Tech Stack:JavaSpring BootSpring Data JPAREST APIsSQLLinuxJenkinsXLRSonarCloverCI/CDMicroservicesWeb applications

Company Brief

Mastercard
Mastercard is a global payments and technology company that processes transactions, provides fraud prevention and data services, and builds payment infrastructure for consumers, businesses, merchants and governments across 200+ countries.
Industry: Payments
Company Size: Enterprise (1,001+ employees)
Revenue: USD 1B+
Growth: Public Company
Valuation: Public Company (Market Cap in USD)
Funding: IPO / Publicly Listed
Headquarters: Purchase, New York, United States
Founded: 1966
Glassdoor
Glassdoor: 4.1
WebsiteLinkedInGlassdoor