Software Engineer I
Mastercard•O'fallon, MO
•$72,000 - $115,000•Onsite
About The Position
Join Mastercard’s Transaction Stream team in O’Fallon, Missouri, and help build the applications and services that power critical capabilities across the real-time payment network. This is an opportunity to work on software that operates on a global scale, where speed, reliability, and resilience matter every day. As a Software Engineer I, you will collaborate with engineers and product partners to build, test, and enhance solutions that support the movement of transactions around the world.
Requirements
- Bachelor's degree in computer science, engineering, information technology, or a related field, or equivalent practical experience in Software Development through a relevant internship, Co-Op, research, or professional business is preferred.
- Strong understanding of programming fundamentals, data structures, algorithms, and object-oriented design concepts.
- Knowledge of software design principles and the ability to develop maintainable, scalable, and reusable software solutions.
- Understanding common architectural concepts and patterns such as layered architectures, microservices, event-driven systems, and distributed applications.
- Working knowledge of Java, Golang, Kotlin, C#, or similar programming languages.
- Familiarity with Spring Boot, Spring, Hibernate, or similar frameworks.
- Understanding REST APIs, microservices, relational databases, SQL, and software testing practices.
- Familiarity with unit testing frameworks and automated testing methodologies.
- Familiarity with Git, CI/CD pipelines, cloud platforms, DevOps practices, and Agile software development methodologies.
- Basic understanding of application performance, scalability, monitoring, and observability concepts.
- Understanding troubleshooting methodologies, root cause analysis, and problem-solving techniques.
- Basic understanding of secure coding principles, OWASP guidelines, and application security best practices.
- Strong analytical thinking, problem-solving, communication, collaboration, and continuous learning skills.
Nice To Haves
- Exposure to JavaScript, Angular, or similar front-end technologies is a plus.
Responsibilities
- Develop, test, maintain, and support software applications and services with guidance from experienced engineers
- Write clean, maintainable, reusable, and secure code following established engineering standards, software design principles, and best practices
- Participate in software design activities by translating functional and non-functional requirements into scalable, maintainable, and secure software components and services
- Contribute to the implementation of established software architecture patterns and system designs while gaining experience with scalability, reliability, security, and long-term maintainability considerations
- Develop and maintain unit, functional, and integration tests to ensure software quality, reliability, and correct system behavior
- Apply knowledge of data structures, algorithms, and software engineering fundamentals to develop efficient and scalable software solutions
- Participate in code reviews and incorporate feedback to improve code quality, maintainability, and engineering practices
- Contribute to APIs, microservices, distributed applications, and event-driven solutions.
- Apply secure coding practices and security-by-design principles throughout the software development lifecycle
- Collaborate with Product, QA, Architecture, Security, DevOps, and Operations teams to deliver software solutions that meet business and technical requirements
- Support cloud-based applications and services while assisting with monitoring, troubleshooting, root cause analysis, and issue resolution
- Assist in monitoring, analyzing, and optimizing application performance, scalability, and resource utilization to meet business and operational requirements
- Contribute to CI/CD, automation, observability, reliability, performance, and operational excellence initiatives
- Help implement operational readiness practices, including logging, monitoring, alerting, and system supportability considerations
- Continuously learn and adopt modern software engineering technologies, tools, and practices
Benefits
- insurance (including medical, prescription drug, dental, vision, disability, life insurance)
- flexible spending account and health savings account
- 16 weeks of new parent leave
- up to 20 days of bereavement leave
- 80 hours of Paid Sick and Safe Time
- 25 days of vacation time
- 5 personal days
- 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
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What This Job Offers
Job Type
Full-time
Career Level
Entry Level
