Senior Software Engineer
Mastercard1 day ago
Base Salary
$115k - $184k/yr
Responsibilities
- Design, build, test, deploy, and maintain scalable cloud-native applications and microservices.
- Develop performant and reliable REST APIs using Java and Spring Boot.
- Translate requirements into maintainable, secure designs and contribute to architecture decisions.
- Write and maintain unit, functional, and integration tests while improving test automation and code coverage.
- Analyze and optimize system performance, scalability, and efficiency.
- Apply secure coding practices and lead vulnerability remediation, including CVE remediation and upgrade automation.
- Lead code reviews, troubleshoot complex production issues, and perform root cause analysis.
- Build systems with strong operability, including monitoring, logging, reliability, and support readiness.
- Contribute to CI/CD pipelines and engineering practices that improve delivery speed and quality.
- Collaborate with product, QA, platform, security, and other teams.
- Mentor junior engineers and influence technical direction and engineering standards.
Requirements
- Experience building RESTful services with Java and Spring Boot.
- Strong experience designing scalable systems using modern software design and architecture principles.
- Experience with AWS, Azure, or GCP and containerization technologies including Docker and Kubernetes.
- Experience writing and maintaining unit, functional, and integration tests.
- Strong understanding of performance engineering, system scalability, troubleshooting, and root cause analysis.
- Expertise in secure coding practices and vulnerability management.
- Experience with code reviews, engineering standards, system operability, monitoring, and reliability practices.
- Understanding of data structures and their effects on performance and scalability.
- Experience working in Agile/Scrum environments and collaborating across teams.
- Strong communication, collaboration, independent problem-solving, and technical influence skills.
- Experience mentoring or supporting other engineers.
- Bachelor’s degree or equivalent experience.
- Preferred knowledge of event-driven architectures such as Kafka.
- Preferred experience in high-throughput or regulated payments, banking, or fintech environments.
- Preferred exposure to AI or automation tools in software development workflows.
Benefits
- Full-time employees generally receive medical, prescription drug, dental, vision, disability, and life insurance; flexible spending and health savings accounts; paid leave; vacation and personal days; paid U.S. holidays; 401(k) matching; eligible deferred compensation; fitness reimbursement or on-site fitness facilities; and tuition reimbursement.
- The posting states that Mastercard intends to fill the position by September 3, 2026, or as soon as possible if that date has passed.
- The role is listed for O'Fallon, Missouri; the posting does not specify a remote or hybrid arrangement.
Tech Stack
Categories
About Mastercard
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).