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Mastercard · 4 hours ago

Software Engineer II

O'Fallon, MO

Full-time

Onsite

Mid Level

$92K/yr - $147K/yr

Mastercard powers economies and empowers people in 200+ countries and territories worldwide. This role is an exciting opportunity to contribute to improving response times for new applications that support the Authorization payment network, focusing on performance engineering and optimization.

FinanceFinancial ServicesInformation TechnologyPayments

Growth Opportunities

H1B Sponsor Likely

Responsibilities

Design, configure, and execute performance tests and drive resolution of failures

Dig into Java code, databases, middleware, and vendor software to identify performance bottlenecks and resolve them

Improve the performance environment with your own code, automation, and external tools

Qualification

Java Spring BootPerformance testingSystem optimizationAutomation toolsCuriosity for technologyProblem-solvingCommunication skillsTime managementOrganizational skills

Required

Strong software engineering experience developing applications using the Java Spring Boot framework for performance testing and optimization

Systematic problem-solving approach, coupled with strong communication skills and a sense of ownership and drive

Time/project management, workload prioritization, knowledge sharing and a passion to learn/take on challenges is a must

Self-motivated demonstrating strong organizational and listening skills; and very detail oriented with the ability to carry out assigned tasks with minimal supervision

Strong verbal and written communications skills

Appetite for change and pushing the boundaries of what can be done with automation. Be curious about new technology, infrastructure, and practices to scale our architecture and prepare for future growth

Willingness and ability to learn and take on challenging opportunities and to work as a member of matrix based diverse and geographically distributed project team

Benefits

Insurance (including medical, prescription drug, dental, vision, disability, life insurance)

Flexible spending account and health savings account

Paid leaves (including 16 weeks of new parent leave and up to 20 days of bereavement leave)

80 hours of Paid Sick and Safe Time

25 days of vacation time and 5 personal days, pro-rated based on date of hire

10 annual paid U.S. observed holidays

401k with a best-in-class company match

Deferred compensation for eligible roles

Fitness reimbursement or on-site fitness facilities

Eligibility for tuition reimbursement

56 hours of Paid Sick and Safe Time

Jury duty leave

On-site fitness facilities in some locations

Company

Mastercard

Glassdoor4.2

Mastercard is a financial network that processes payments between banks and cardholders.

Founded in 1966

Purchase, New York, USA

10001+ employees

http://www.mastercard.com

H1B Sponsorship

Mastercard has a track record of offering H1B sponsorships. Please note that this does not guarantee sponsorship for this specific role. Below presents additional info for your reference. (Data Powered by US Department of Labor)

Distribution of Different Job Fields Receiving Sponsorship

Represents job field similar to this job

Trends of Total Sponsorships

2025 (540)

2024 (319)