Software Engineer II
Mastercard3 days ago
O'Fallon, MO, USAMid Level
H1B sponsor
Base Salary
$92k - $147k/yr
Responsibilities
- Design, develop, and own Java-based backend services and REST APIs in a distributed architecture.
- Build and enhance user interface applications using Angular and Node.js.
- Deliver software end to end, including solution design, development, testing, deployment, configuration, documentation, and operational support.
- Participate in technical design sessions, architectural reviews, and solution planning.
- Develop and maintain unit, functional, and integration tests.
- Apply secure coding practices and remediate vulnerabilities.
- Improve software performance, resiliency, scalability, and observability.
- Troubleshoot production issues, perform root cause analysis, and implement corrective actions.
- Collaborate with cross-functional teams to deliver production-grade authentication solutions.
Requirements
- Strong hands-on experience with Java, Spring Boot, and REST APIs.
- Hands-on experience with Angular 2+ and Node.js.
- Experience building and maintaining scalable, production-grade applications.
- Strong troubleshooting and debugging skills in distributed systems.
- Understanding of software design principles, object-oriented programming, architecture concepts, design patterns, and scalable distributed application design.
- Experience designing and executing unit, functional, and integration testing strategies.
- Understanding of data structures, algorithms, secure coding, and application security fundamentals.
- Experience with code reviews and engineering quality standards.
- Strong communication and cross-functional collaboration skills.
- Preferred: 3–5 years of software engineering experience.
- Preferred: experience with Kubernetes, AWS, Azure, or PCF.
- Preferred: exposure to automation, DevOps engineering practices, observability, monitoring, logging, operational support, performance testing, application tuning, capacity planning, and AI-assisted development tools.
Benefits
- Full-time employees generally receive medical, prescription drug, dental, vision, disability, and life insurance.
- Benefits include flexible spending and health savings accounts, paid leaves including 16 weeks of new parent leave and up to 20 days of bereavement leave, paid sick and safe time, vacation, personal days, and 10 annual U.S. holidays.
- Benefits include a 401(k) with company match, deferred compensation for eligible roles, fitness reimbursement or onsite fitness facilities, and tuition reimbursement eligibility.
- The posting states Mastercard intends to fill the position by 10/05/2026, or as soon as possible if that date has passed.
- The stated U.S. base salary range for O'Fallon, Missouri is $92,000–$147,000.
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).