---
title: Software Engineer II at Mastercard
description: Mastercard is hiring for the Software Engineer II role in O Fallon, Missouri,
  United States of America. See the full description and apply.
type: job
url: https://www.foundrole.com/jobs/software-engineer-ii-at-mastercard-01a13810-bc77-760f-b7cd-7f7fa7d4f5e8
date: 2026-10-14T02:21:53Z
og_description: Join Mastercard as Software Engineer II in O Fallon, Missouri, United States of
  America. Pays $92K–$147K per year.
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| | |
|---|---|
| **Company** | [Mastercard](https://www.foundrole.com/companies/mastercard?utm_source=ai_markdown) |
| **Location** | O Fallon, Missouri, United States of America |
| **Salary** | $92K/yr - $147K/yr |
| **Type** | Full Time |
| **Posted** | Oct 11, 2026 |
## Description

**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**

Software Engineer II

About the Role  

The Mastercard Operational Intelligence Program is engaged in developing innovative solutions through technology that keeps Mastercard positioned as a leader in delivering value-added business analytics and reporting solutions to our diverse customer base. We work collaboratively with our product partners and other technical teams to continuously improve and enhance our existing products and drive new products to the global marketplace.  

We are currently seeking a Software Engineer II to join the Mastercard Operational Reports NexGen development team to work on Enterprise Applications utilizing Java technology stacks and Angular/React front-end technologies. The successful candidate will contribute to the design, development, testing, deployment, and support of enterprise applications while applying software engineering principles to deliver scalable, secure, resilient, and maintainable solutions. This role will collaborate closely with cross-functional teams and contribute to continuous improvement initiatives that enhance application quality, reliability, and operational excellence.  

Role  

• Participate in the gathering and analysis of business requirements and translate them into scalable, maintainable, and secure software solutions.  
• Participate in application design discussions and contribute to software architecture, design patterns, component interactions, and technology standards under the guidance of senior engineers and technical leads.  
• Develop solutions that align with Mastercard Enterprise Architecture standards while leveraging enterprise services, frameworks, and reusable platforms.  
• Contribute to ensuring product development meets Mastercard's business, scalability, performance, security, and reliability requirements.  
• Follow Mastercard development methodologies, engineering standards, and documentation practices when designing and building software solutions.  
• Participate in code reviews to improve code quality, maintainability, security, consistency, and adherence to software engineering best practices.  
• Collaborate with team members, share knowledge, and seek guidance from senior engineers when addressing highly complex technical challenges.  
• Design, develop, and maintain unit, functional, integration, and automated tests to validate application functionality, system interactions, quality, and reliability.  
• Support continuous integration and continuous testing practices to improve software quality and release confidence.  
• Develop and maintain software solutions that support high availability, resiliency, operational readiness, and reliability objectives.  
• Respond to operational and business concerns related to applications, projects, and platform enhancements to ensure consistent delivery of quality services.  
• Investigate and resolve production, application, integration, and infrastructure issues using structured troubleshooting, root cause analysis, and corrective actions, escalating highly complex issues when appropriate.  
• Support compliance with required certifications and regulatory requirements, including PCI, GLBA, Safe Harbor, and other applicable standards.  
• Apply secure coding practices, security-by-design principles, and vulnerability prevention techniques throughout the software development lifecycle.  
• Identify and remediate application security vulnerabilities while ensuring alignment with Mastercard security standards and industry best practices.  
• Contribute to application performance optimization through monitoring, analysis, tuning, and scalability improvements across applications, APIs, databases, and cloud environments.  
• Apply data structures, algorithms, and software engineering principles to develop efficient, scalable, and maintainable software solutions.  
• Develop, test, deploy, monitor, and support cloud-based applications and services using AWS and cloud-native technologies while following established architecture patterns and engineering standards.  
• Design and build solutions with operational readiness in mind, incorporating observability, logging, monitoring, alerting, supportability, reliability, and maintainability best practices.  
• Contribute to the continuous improvement and expansion of the platform by helping ensure that solutions remain resilient, secure, scalable, highly available, and operationally efficient.  
• Collaborate with product owners, business partners, and engineering teams to understand requirements and provide technical input supporting product and platform objectives.  

All About You  

• Strong analytical, troubleshooting, and problem-solving abilities, with the ability to quickly adapt to new technologies, methodologies, and systems.  
• High-energy, detail-oriented, proactive, and able to function effectively in a fast-paced environment with a high degree of initiative and accountability.  
• Strong interpersonal and relationship-building skills with a proven ability to collaborate effectively across teams.  
• Excellent communication skills with the ability to interact across organizational levels and partner effectively with technical and non-technical stakeholders.  
• Strong understanding of data structures, algorithms, object-oriented design principles, and scalable application development techniques.  
• Experience developing and enhancing scalable, secure, maintainable, and high-performing enterprise software solutions.  
• Experience participating in code reviews and applying engineering best practices to improve software quality, maintainability, and security.  
• Experience developing unit, functional, integration, and automated testing solutions within enterprise applications.  
• Experience analyzing application performance, identifying bottlenecks, and implementing optimization improvements across applications, databases, and cloud environments.  
• Experience applying secure coding practices, application security principles, vulnerability remediation techniques, and OWASP-based security standards.  
• Proficient working with J2EE, Java 8 or higher, JSP, Servlets, Spring 5, Hibernate, and relational and non-relational database technologies including Oracle, SQL Server, MySQL, PostgreSQL, NoSQL, MongoDB, or comparable technologies.  
• Demonstrated troubleshooting and root cause analysis skills supporting business-critical applications in production environments.  
• Experience in the following is highly preferred:  
• Web Services (SOAP, RESTful APIs)  
• Servers (WebSphere, JBoss, Tomcat)  
• HTML, JavaScript, jQuery  
• UNIX (Shell, AWK scripting)  
• XML/XSLT  
• CSS  
• C#  
• React or Angular  
• IDEs (Microsoft Visual Studio, RAD, Eclipse)  
• Experience with development tools including Maven, Gradle, Jenkins, Chef, SonarQube, and related DevOps toolsets.  
• Experience working within Agile and Waterfall delivery methodologies.  
• Experience developing and supporting cloud-native applications utilizing AWS cloud services.  
• Understanding of observability, monitoring, operational readiness, and reliability engineering concepts.  
• Knowledge of data engineering concepts and experience working with DCP, Databricks, AWS, or enterprise-scale data platforms is preferred.  
• Bachelor's degree in Information Systems, Information Technology, Computer Science, Engineering, or equivalent practical experience is preferred.

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 reasonable_accommodation@mastercard.com 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.  

THIS POSTING RELECTS ONE OR MORE CURRENT VACANCIES ON OUR TEAM, AND MASTERCARD INTENDS TO FILL THIS POSITION BY 01/10/2027. If the fill date has passed, Mastercard intends to fill this position as soon as possible.  

**Pay Ranges**

O'Fallon, Missouri: $92,000 - $147,000 USD
## Skills

- Apache Maven
- Software Architecture
- Spring Framework
- Regulatory Compliance
- Jenkins
- High Availability Systems
- Angular (Web Framework)
- C#
- Cloud Computing
- Open Web Application Security Project (Owasp)
- Cyber Security
- DevOps
- Continuous Testing
- Amazon Web Services
- NoSQL
- WildFly (JBoss As)
- Enterprise Architecture
- Application Security
- Information Technology
- Cascading Style Sheets (Css)
- Security by Design
- Software Development Methodologies
- Microsoft SQL Server
- Application Development
- RESTful API
- PCI DSS
- Cloud-Native Computing
- Waterfall Methodology
- Performance Optimization
- Object-Oriented Programming (Oop)
- Code Review
- Logging
- Problem Solving
- Code Quality
- Database Management
- Web Services
- Microsoft Visual Studio
- Observability
- Relationship Building
- Software Design Patterns
- Root Cause Analysis
- Gramm-Leach-Bliley Act Compliance
- Interpersonal Skills
- JavaServer Pages (Jsp)
- Initiative
- Algorithms
- Databricks
- Confidentiality
- PostgreSQL
- SonarQube
- MySQL
- Continuous Improvement Process
- Software Development
- MongoDB
- Gradle
- Information Systems
- JQuery
- New Product Development
- Scalability
- CI/CD
- Software Development Life Cycle
- Eclipse
- Security Policies
- Reliability Engineering
- Software Maintainability
- Automated Testing
- Corrective And Preventive Action (Capa)
- HyperText Markup Language (Html)
- Sun Microsystems Java Servlet API
- Apache Tomcat
- IBM WebSphere
- Attention to Detail
- JavaScript
- Technical Documentation
- Software Quality (Sqa/sqc)
- Unix
- Computer Science
- AWK
- Extensible Stylesheet Language Transformations (Xslt)
- Java Platform Enterprise Edition (J2ee)
- Data Structures
- Harbor
- Data Engineering
- Vulnerability Management
- Communication
- Secure Coding
- Operational Readiness
- SOAP
- Extensible Markup Language (Xml)
- Databases
- Hibernate ORM
- Java
- Business Requirements
- Detail Oriented
- Shell Script
- Application Design
## Benefits

- Disability Insurance
- Vision Insurance
- Fitness Centers/Gyms
- Life Insurance
- Dental Insurance
- Tax-Advantaged Accounts
- Jury Duty Leave
- Bereavement/Mental Health Leave
- Paid Time Off (Pto)
- Parental Leave
- 401(k) Plans
- Financial Aid/Assistance
- Personal Leave

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