Design develop test and deploy scalable payment applications using Java/Spring Boot. Troubleshoot and refactor code work with messaging/streaming (Kafka NATS MQ Flink) apply secure coding and CI/CD practices contribute to architecture mentor peers and participate in agile delivery.

Our Purpose
Mastercard powers economies and empowers people in 200+ countries and territories worldwide. Together with our customers we're helping build a sustainable economy where everyone can prosper. We support a wide range of digital payments choices making transactions secure simple smart and accessible. Our technology and innovation partnerships and networks combine to deliver a unique set of products and services that help people businesses and governments realize their greatest potential.
Title and Summary
Senior Software Engineer-2
Who is Mastercard
Mastercard is a global technology company in the payments industry. We work to connect and power an inclusive digital economy that benefits everyone everywhere by making transactions safe simple smart and accessible.
Our mission is to connect and power an inclusive digital economy that benefits everyone everywhere by making transactions safe simple smart and accessible. Using secure data and networks partnerships and passion our innovations and solutions help individuals financial institutions governments and businesses realize their greatest potential.
Our decency quotient or DQ drives our culture and everything we do inside and outside of our company. With connections across more than 210 countries and territories we are building a sustainable world that unlocks priceless possibilities for all.
About the Role
Reactive Systems Architecture allows Application Teams to focus on the functional business requirements leaving the task of addressing various non-functional requirements to the underlying framework platform components and infrastructure. The functional business logic layer deals in messages the delivery of which is an event that invokes some processing on that message. Specific to Mastercard / payment systems these are typically financial messages. The non-functional requirements include but are not limited to security traffic management infrastructure-independent deployment scalability resiliency high availability consistent message delivery delivery auditing message delivery for failed/absent consumers application lifecycle management live/silent mode testing stateful stream processing strong consistency observability root cause detection and recovery.
The Role
What's it all about and what we expect you to do day to day
Own software delivery tasks (code development test deployment) at an application/software component level
Able to troubleshoot and refactor existing code for exceptional code quality.
Adopt new languages and architecture patterns needed for the work.
Participate and contribute to the team's agile process and decisions.
Pull from backlog and deliver work after seeking guidance from experienced team members and in partnership with full scrum team. (Agile)
Understands the big picture and end-to-end logical architecture of systems in ownership areas
Provide feedback and suggestions on areas to improve
Understands the use of Mastercard technology policies in everyday work
Demonstrate active learning and sharing of software practices via Guild/Engineering community initiatives
Influence the decisions made by the team.
Assist peers and less experienced members.
Influence the decisions made by the team.
Assist in technical documentation of APIs and services being delivered.
All About You
Strong hands-on experience in JAVA Spring Boot for developing scalable and high-performance applications
Working knowledge of cloud platforms (AWS preferred)
Clear experience working with messaging solutions and integration patterns such as Apache Kafka NATS and MQ.
Knowledge and experience of Apache Fink and stateful stream processing concepts preferred
Familiarity with configuration management tools such as Ansible Chef preferred.
Familiar with secure coding standards (e.g. OWASP CWE SEI CERT)
Infrastructure as code and cloud first software development knowledge experience preferred.
Understands and implements standard branching (e.g. GitHub) and peer review practices
Apply tools (e.g. Sonar Blackduck and Checkmarks) and techniques to scan and measure code quality and anti-patterns as part of development activity
Understands and builds test code at unit level service level and integration level to ensure code and functional coverage
Understands the use of basic design patterns (e.g. factory adaptor singleton composite observer strategy inversion of control)
Understands requirement analysis being essential part of delivering value to our customers and partners and participate in elaboration prioritization and effort estimation
Understands agile and modern SDLC practices (Scrum/Kanban/Continuous Delivery/DevOps/Quality engineering) and the delivery situations they are used for
Understands the basic engineering principles used in building and running mission critical software capabilities (security customer experience testing operability simplification service-oriented architecture)
Familiar with different application patterns to implement different types of business processes (e.g. APIs event-driven-services batch-services web-applications big data)
Understands Continuous Integration (CI) and Delivery (CD) concepts and capabilities to support automation pipelines virtualization and containerization
Has ability to write code (in languages such as Java preferred and JavaScript) to build automation tasks that are repeatable and efficient
Understands functional and non-functional testing types to elaborate and estimate test efforts
Mastercard is a merit-based inclusive equal opportunity employer that considers applicants without regard to gender gender identity sexual orientation race ethnicity disabled or veteran status or any other characteristic protected by law. We hire the most qualified candidate for the role. In the US or Canada if you require accommodations or assistance to complete the online application process or during the recruitment process please contact [email protected] and identify the type of accommodation or assistance you are requesting. Do not include any medical or health information in this email. The Reasonable Accommodations team will respond to your email promptly.
Corporate Security Responsibility
All activities involving access to Mastercard assets information and networks comes with an inherent risk to the organization and therefore it is expected that every person working for or on behalf of Mastercard is responsible for information security and must:

• Abide by Mastercard's security policies and practices;
• Ensure the confidentiality and integrity of the information being accessed;
• Report any suspected information security violation or breach and
• Complete all periodic mandatory security trainings in accordance with Mastercard's guidelines.

In line with Mastercard's total compensation philosophy and assuming that the job will be performed in the US the successful candidate will be offered a competitive base salary and may be eligible for an annual bonus or commissions depending on the role. The base salary offered may vary depending on multiple factors including but not limited to location job-related knowledge skills and experience. Mastercard benefits for full time (and certain part time) employees generally include: 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; and many more. Mastercard benefits for interns generally include: 56 hours of Paid Sick and Safe Time; jury duty leave; and on-site fitness facilities in some locations.
Pay Ranges
O'Fallon Missouri: $115000 - $184000 USD