Software Engineer II
$92k - $147kMastercard
Software Engineer II
About the Role
The Authentication Program develops and operates Mastercard's authentication solutions that help make digital payments secure, seamless, and trusted around the world. This role will focus on Identity Check, Mastercard's global authentication platform built on the EMV 3-D Secure protocol. Identity Check helps issuers, merchants, and consumers authenticate digital transactions with greater security, improved user experiences, and higher transaction approval rates. As part of our team, you will build and support highly scalable, high-performance software that protects billions of digital payment interactions globally. We are hiring a Software Engineer II to join Mastercard's Core Payments department, responsible for delivering solutions that facilitate billions of secure transactions between issuers, acquirers, and service providers worldwide. As part of the Directory Services Team, you will build and support highly scalable, high-performance software that protects billions of digital payment interactions globally. Role Software Development & Design • Design, develop, test, and maintain high-quality Java-based software components that meet engineering and business requirements.• Apply software design principles to create maintainable, scalable, and efficient solutions for moderately complex business and technical challenges.
• Complete detailed technical design activities for assigned features, ensuring alignment with established architectural standards and development practices.
• Participate actively in gathering requirements, technical discussions, and solution design sessions. Software Architecture & Operability • Contribute to system architecture discussions and support implementation of architectural patterns that promote scalability, performance, maintainability, and operational reliability.
• Develop solutions with operational readiness in mind, including observability, monitoring, troubleshooting, and supportability considerations.
• Collaborate with team members to improve system resiliency and production stability. Testing & Quality Engineering • Design, develop, and maintain comprehensive unit, functional, and integration tests to validate application behavior and ensure software quality.
• Partner with quality engineers and testers to validate functionality and verify requirements are met.
• Support continuous integration and deployment practices through automated testing and quality validation. Performance & Reliability • Analyze application behavior and identify opportunities to improve system performance, scalability, and reliability.
• Investigate performance bottlenecks and contribute to tuning and optimization efforts within supported applications. Secure Coding & Code Quality • Apply secure coding practices to develop software that minimizes vulnerabilities and adheres to organizational security standards.
• Participate in peer code reviews, providing constructive feedback to improve code quality, maintainability, security, and adherence to engineering standards.
• Incorporate feedback from reviews and testing activities to continuously improve delivered solutions. Troubleshooting & Collaboration • Utilize analytical and problem-solving skills to identify, diagnose, and resolve application and system issues.
• Support debugging and root-cause analysis activities across development, testing, and production environments.
• Collaborate effectively with software engineers, testers, product owners, and other stakeholders in a fast-paced, Agile team environment.
• Deliver assigned work within iteration timelines while maintaining a strong commitment to quality and customer outcomes. All About You • Proficient experience developing Java microservice and RESTful APIs using Java EE and Spring technologies, including Spring Boot
• Knowledge of software design principles, data structures, and object-oriented programming concepts.
• Proficiency working with orchestration platforms and tools, like Kubernetes and Docker.
• Experience using source control and collaborative development tools such as Git and Bitbucket.
• Experience working with software development lifecycle practices, including design, coding, testing, debugging, and deployment.
• Experience working with relational and/or distributed data stores such as Oracle Database and Redis
• Experience deploying and supporting applications running on Tomcat or similar application platforms
• Hands-on experience using GitHub Copilot, Claude Code, or other AI-assisted software development tools to improve engineering productivity and code quality
• Demonstrates the ability to effectively partner with AI tools while maintaining accountability for design decisions, code quality, security, testing, and production outcomes
• Understanding of secure coding principles and industry standards such as OWASP, CWE, and SEI CERT
• Experience using Git-based source control workflows, including branching strategies, pull requests, and peer code reviews
• Experience creating and maintaining automated tests at the unit, service, and integration levels
• Experience with testing frameworks such as JUnit, Mockito, and Spring Test
• Understanding of software design principles, distributed systems concepts, and modern application architectures
• Ability to independently troubleshoot problems, analyze root causes, and implement effective solutions
• Strong analytical, problem-solving, and communication skills
• Collaborative team player who actively learns from others and shares knowledge with peers
• Demonstrates curiosity, ownership, and a continuous improvement mindset
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 View email address on decentrajobs.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 01/17/2027. If the fill date has passed, Mastercard intends to fill this position as soon as possible.
Pay RangesO'Fallon, Missouri: $92,000 - $147,000 USD
- ...Software Engineer II 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,...SuggestedFull timePart timeWorldwideFlexible hours
- ...Software Engineer II Location: OFallon, MO Program Overview: Sustainability and Innovations Program aims to develop Mastercard sustainability solutions and innovative products for Consumer solutions. S&I program team is looking for a high-energy, detail-oriented...SuggestedLocal area
$92k - $147k
...set of products and services that help people, businesses and governments realize their greatest potential. Title and Summary Software Engineer IIOverview The ABU team enables issuers and acquirers to securely communicate account changes for credential-on-file and recurring...SuggestedFull timePart timeImmediate startWorldwideFlexible hours- Excellent communication skills with the ability to communicate with all levels of management Ability to build rapport and relationships Someone understanding the concept of operations first, focusing on usability, operability of applications from the get go...Suggested
$76k - $127k
...greatest potential. Title and Summary Site Reliability Engineer II Who is Mastercard? At Mastercard technology, we work to... ...support our developers during the application build phase in software run principles that include operational design, automation, capacity...SuggestedFull timePart timeWorldwideFlexible hours$92k - $147k
...of products and services that help people, businesses and governments realize their greatest potential. Title and Summary Software Engineer II About the Role Mastercard's Services Technology organization is seeking a Software Engineer II to contribute to the design...Full timePart timeWorldwideFlexible hours$92k - $147k
...of products and services that help people, businesses and governments realize their greatest potential. Title and Summary Software Engineer II Overview: At Mastercard, our industry expertise is enhanced by our commitment to being a force for good in the world and...Full timePart timeImmediate startWorldwideFlexible hours$92k - $147k
...of products and services that help people, businesses and governments realize their greatest potential. Title and Summary Software Engineer II The Core Payments department is hiring a highly motivated Software Engineer II with a passion for Artificial Intelligence...Full timePart timeWorldwideFlexible hours$92k - $147k
...of products and services that help people, businesses and governments realize their greatest potential. Title and Summary Software Engineer II - Full Stack & AI Overview The Decision Services Technology team within Mastercard's Business & Market Insights organization...Full timePart timeImmediate startWorldwideFlexible hours- Job Description Insight Global is looking for a Security Engineer II to support cybersecurity, risk management, and application security efforts for USTRANSCOM under the PEO-T contract. This person will work directly with government stakeholders and development teams...Contract workFor contractors
- ...Software Engineer Location: OFALLON Roles and Responsibilities: Work closely with software engineers, product managers, and other stakeholders to identify and understand the API requirements. Design and develop the API interface and documentation using programming...
$72k - $115k
...products and services that help people, businesses and governments realize their greatest potential. Title and Summary Software Engineer I Who is Mastercard? We work to connect and power an inclusive, digital economy that benefits everyone, everywhere, by making...Full timePart timeWork experience placementImmediate startWorldwideFlexible hours- Network Engineer Our customer, the Defense Information Systems Agency (DISA), provides, operates... .../Global Solutions Management-Operations II (GSMO-II) contract has an opening for a... ...tasks which include hardware and software design and implementation. Basic Qualifications...Contract work
- ...Sr. Software Engineer Backend Developer, Java Spring Boot, event driven architecture (Kafka) Knowledge / Experience: Experience with large scale software development or application engineering with recent coding experience in two or more of the following languages...
$115k - $184k
...products and services that help people, businesses and governments realize their greatest potential. Title and Summary Senior Software Engineer Who is Mastercard? Mastercard is a global technology company in the payments industry. Our mission is to connect and...Full timePart timeImmediate startWorldwideFlexible hours- ...Job Title Bachelor’s degree in information systems, information technology, computer science, engineering, or equivalent work experience. More than 7 years of industry experience. Excellent communication skills, with the ability to interact across multiple organizational...Work experience placement
- ...Senior Software Engineer 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...Full timePart timeFlexible hours
- ...new CEO, *** is committed to a transformative journey with 'Scale @ Speed' as our guiding principle. Role Overview: As a Software Engineer in Corporate Solutions at you'll work with modern full-stack development practices with a focus on microservice and...
- ...APPLICATIONS SENT TO THE AFOREMENTIONED EMAIL WILL BE CONSIDERED. Employer's Name: Mastercard Technologies, LLC Job Title: Senior Software Engineer (O'Fallon, MO) Position Duties : Research and development of technical solutions to address platform challenges related to...Remote workWork from home
- ...Principal Software Engineer O Fallon - O Fallon, MO 63366 Overview Position Type Regular Full Time Job Shift Day Education Level 4 Year Degree Category Engineering Description The Principal Software Engineer is the senior-most technical authority for True...Full timeContract workWork at officeRemote workMonday to FridayShift work
$78 - $88 per hour
...Role: Senior Software Engineer No. of Position(s) 1 Job Location: Ofallon, MO, US Bill Rate Range $78-88/hr Employment Type Temporary Estimated Duration (In Months) 13 Work Model Hybrid Must have Skills/Attributes Angular, CSS, HTML...Temporary workShift work$92k - $147k
...of products and services that help people, businesses and governments realize their greatest potential. Title and Summary Data Engineer II Overview: Mastercard’s Enterprise Credit Risk (ECR) team is seeking a Data Engineer II to design, build, and maintain data...Full timePart timeWorldwideFlexible hours3 days per week- Senior Software Engineer Seeks a Senior Software Engineer who will be a crucial part of our software team. The selected candidate will have to write scalable, robust, and easy-to-maintain code, and will be required to translate software requirements into high-performance...Work experience placement
$115k - $184k
...products and services that help people, businesses and governments realize their greatest potential. Title and Summary Senior Software Engineer Overview Mastercard is a global technology company in the payments industry, focused on powering an inclusive, digital...Full timePart timeWorldwideFlexible hours$152k - $258k
...greatest potential. Title and Summary Director, Platform Engineering Who is Mastercard? Mastercard is a global technology... ...solving. This role focuses on analyzing, coding, and delivering software and platform solutions. Operations Automation program supports...Full timePart timeImmediate startWorldwideFlexible hours- ...Lead Software Development Engineer Mastercard’s Commercial Solutions team is a rapidly growing organization with responsibilities to deliver innovative solutions to help our customers grow and expand their business. Focused on thinking big and scaling fast around the...H1bLocal areaRelocation
- ...• Be able to work with Business/Systems Analysts and Quality Engineers in a behavioural driven development environment. • The Ideal... ...requirements • Automate build, operate, and run aspects of software • Drive code/design/process trade-off discussions within team...
$140k - $231k
...products and services that help people, businesses and governments realize their greatest potential. Title and Summary Lead Software Engineer Overview Mastercard is a global technology company in the payments industry, focused on powering an inclusive, digital...Full timePart timeWorldwideFlexible hours- ...Lead Software Engineer Job Description: Overview: As part of an exciting, fast paced environment developing digital identity and security solutions in the mobile and e-commerce space, this position will provide technical expertise within the development lifecycle...
- ...Principal Software Development Engineer Job Overview: Leads major projects and creates the development and delivery of quality software solutions in a timely and cost-effective manner. Research alternative technical solutions for changing business needs. Responsible...
Do you want to receive more vacancies?
Subscribe and receive similar vacancies to Software Engineer II. Be the first to apply!
- software engineer amazon O Fallon, MO
- information technology software engineer O Fallon, MO
- intel software engineer O Fallon, MO
- senior software engineer remote O Fallon, MO
- software engineer part time O Fallon, MO
- senior software engineer O Fallon, MO
- software engineer full time O Fallon, MO
- cybersecurity software engineer O Fallon, MO
- part time software developer remote O Fallon, MO
- software engineer O Fallon, MO


