# Software Engineer II

**Company**: Mastercard
**Location**: O'Fallon, Missouri
**Experience**: mid
**Job type**: full-time
**Salary**: $92,000 - $147,000 USD
**Category**: Engineering
**Industry**: Finance

**Apply**: https://mastercard.wd1.myworkdayjobs.com/en-US/CorporateCareers/job/OFallon-Missouri/Software-Engineer-II_R-292491?utm_source=yubhub.co&utm_medium=jobs_feed&utm_campaign=apply
**Canonical**: https://yubhub.co/jobs/job_9a7b45b3-ea9

## Description

Mastercard's Fraud Products team develops capabilities for the Decision Management Platform, which supports solutions designed to combat fraud and validate cardholder identity.

As a Software Engineer II, you will develop, test, deploy, and support applications and services within this platform.

**Responsibilities**

- Design, build, test, deploy, and maintain Java-based applications and services.

- Translate business and technical requirements into maintainable software solutions.

- Apply data structures and programming concepts to support efficient system performance.

- Integrate vendor and open-source technologies into existing systems.

- Contribute to Agile discovery, planning, development, and delivery activities.

**Design & Architecture**

- Develop software designs that address functional, performance, security, and operational requirements.

- Apply established architectural patterns and standards when building distributed applications.

- Partner with technical leads to understand system interactions, dependencies, and design decisions.

- Support high-performance, highly available transaction-processing solutions.

**Quality & Secure Engineering**

- Create and maintain unit, functional, and integration tests.

- Apply secure coding practices throughout the software development lifecycle.

- Participate in code reviews to improve readability, maintainability, and adherence to engineering standards.

- Identify and resolve defects before they affect production systems.

**Performance & Operational Excellence**

- Analyze and optimize application performance, scalability, and reliability.

- Troubleshoot technical issues and support the resolution of production incidents and problem tickets.

- Contribute to monitoring, observability, alerting, and operational readiness.

- Develop an understanding of application runtime behavior, dependencies, infrastructure, and support requirements.

**Collaboration**

- Partner with engineers, technical leads, Product, Architecture, and other cross-functional teams.

- Communicate effectively within a globally distributed environment.

- Share technical knowledge and contribute to continuous improvement.

- Demonstrate ownership, initiative, and accountability for assigned work.

**Required Qualifications**

- Bachelor's degree in Computer Science, Engineering, Information Technology, Information Systems, or a related field, or equivalent practical experience.

- Software development experience using Core Java, including multithreading.

- Knowledge of Java/J2EE, Spring Framework, and Spring Boot.

- Experience writing unit, functional, and integration tests.

- Understanding of software design principles, architectural patterns, and distributed systems.

- Ability to apply secure coding practices and participate in code reviews.

- Knowledge of data structures and their application to software development.

- Experience troubleshooting applications and supporting production issues.

- Familiarity with performance testing, monitoring, analysis, or system optimization.

- Understanding of observability and operational support practices.

- Experience with Oracle, PL/SQL, and advanced SQL scripting.

- Knowledge of Agile development practices and test-driven development.

- Ability to work independently on routine and moderately complex assignments, seeking guidance when addressing unfamiliar or highly complex situations.

- Strong communication, collaboration, organizational, and problem-solving skills.

**Benefits**

- 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

- 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

## Skills

### Required
- Java
- Spring Framework
- Spring Boot
- Agile development
- Test-driven development
- Oracle
- PL/SQL
- SQL scripting
- Distributed systems
- Secure coding practices

### Nice to have
- GemFire
- Apache Spark
- Redis
- Hazelcast
- GridGain
- Splunk
- Linux
- Shell scripting
- IntelliJ IDEA
- JBoss Developer Studio

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Source: [Apply at mastercard.wd1.myworkdayjobs.com](https://mastercard.wd1.myworkdayjobs.com/en-US/CorporateCareers/job/OFallon-Missouri/Software-Engineer-II_R-292491?utm_source=yubhub.co&utm_medium=jobs_feed&utm_campaign=apply)