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Added 1 min ago
MT
Engineer - Life Safety Systems & Telecom (NY)
Micron Technology
Clay
- $82,000 to $169,000 USD / year
As a Fire Alarm / Life Safety Systems Engineer, you will provide technical leadership for life-safety systems across construction projects. You will independently evaluate developments,…
Added 11 mins ago
Principal Network Engineer - Routing & Switching
LEIDOS, INC.
Odenton, MD
Leidos is seeking a Principal Network Engineer specializing in routing and switching to serve as the senior technical authority for the routed and switched enterprise. The role is…
Added 11 mins ago
Senior DevOps Engineer
LEIDOS, INC.
Remote, United States
The Mission Enablement Center (MDEC) is seeking an experienced Senior DevOps Engineer to support its Cloud Engineering team. This hands-on position supports the design, deployment,…
Added 38 mins ago
Associate Radio Frequency Engineer
Leonardo DRS, Inc.
Frederick, MD
Taking care of our people is a top priority at Leonardo DRS. We are proud to offer competitive salaries and comprehensive benefits, including medical, dental, and vision coverage, a company…
Added 38 mins ago
PC
Electrical Engineer II
PAE CONSULTING ENGINEERS INC
San Francisco, CA
- $96,800 to $118,200 USD / year
Support development and production of the lighting control design
Added 46 mins ago
Software Dev Engineer II, MHLS HTS Tech
Amazon.com Services LLC
Dallas, TX
As an SDE-II on this team, you will play a pivotal role in shaping the definition, vision, design, roadmap and development of product features from beginning to end. You will own the full…
Added 46 mins ago
Software Development Engineer II, Security Products
Amazon.com Services LLC
Austin, TX · Seattle, WA
…unified platform spanning threat detection, incident response, and digital forensics, protecting all of Amazon and its subsidiaries across endpoint, cloud, network, and application vectors.…
Added 1 hour ago
Staff Mechanical Engineer (Flexible Instruments)
Intuitive
Sunnyvale, CA
The Staff Mechanical Engineer, Advanced Energy, will serve as a technical and design lead for the development of advanced energy products and/or sub-systems at Intuitive. This role is…
Added 1 hour ago
Sourcing Specialist II
Rocket Lab Corporation
Long Beach, CA
…the procurement team, you will be responsible for sourcing and securing the raw materials essential to the development and production of our launch vehicles, satellite systems, and advanced…
Added 1 hour ago
Software Engineer, Senior | Top Secret clearance w/SCI eligibility
AMERICAN SYSTEMS
Arlington, VA
AMERICAN SYSTEMS, a 100% employee-owned federal contractor, is seeking a Software Engineer to support the Mission Engineering and Integration Team in Arlington, VA. You will design,…
Added 1 hour ago
Software Development Engineer, Network Monitoring and Remediation (NMR)
Amazon Data Services, Inc.
Seattle, WA
Amazon's network carries traffic for hundreds of millions of customers, and the Network Monitoring and Remediation (NMR) team keeps it healthy. As a Software Development Engineer II on NMR,…
Added 1 hour ago
Forward Deployed Engineer (FDE), AWS Forward Deployed Engineering, US Government
Amazon Web Services, Inc.
Jessup, MD · Arlington, VA · Seattle, WA · Denver, CO · Herndon, VA
Own production for your workstream. Be a significant contributor to the full software development lifecycle including scoping, design, code, testing, deployment, and maintenance.…
Added 1 hour ago
FE
AI Engineer II
Federal Express Corporation
Memphis, TN · Coraopolis, PA · Plano, TX
- $11,410.38 USD / month
The AI Engineer is responsible for designing, developing, deploying, and maintaining artificial intelligence and machine learning solutions that support intelligent automation, predictive…
Added 1 hour ago
Engineer II Product Analysis
St. Jude Medical, Cardiology Division, I
CA
Perform failure analysis on explanted biomedical implant products and provide technical expertise to the Product Analysis Laboratory. Analyze product failures, develop and implement…
Added 1 hour ago
Test Engineer - Electric Propulsion, Satellites (Starlink)
SpaceX
Redmond, WA
The Electric Propulsion Test Engineer is responsible for ensuring the electric thrusters that propel Starlink satellites and their associated components have been tested and qualified to…
Added 1 hour ago
Software Development Engineer, AWS Builder Acceleration
Amazon.com Services LLC
Seattle, WA
Are you passionate about leveraging GenAI and advanced AWS technologies to simplify builder experience and accelerate innovations at AWS scale? We are building a new organization, AWS…
Added 1 hour ago
IS
Cybersecurity Engineer III
INFORMATION SYSTEMS SOLUTIONS, INC
San Diego, CA
- $170,000 to $180,000 USD / year
Information Systems Solutions (ISS) is seeking a Cybersecurity Engineer III to support the NIWC PAC Information Technology Management Support Services contract. The Cybersecurity Engineer…
Added 2 hours ago
Engineer II, Field Software
ASM
United States
For over 55 years ASM has been ahead of what’s next, at the forefront of innovation and what’s technologically possible. With more than 4,500 ASMers representing 70 nationalities, our…
Added 2 hours ago
UO
Engineer II, Autonomous Systems - Missouri Institute for Defense & Energy
University of Missouri System
MO
- $75,000 to $80,000 USD / year
The Engineer II - Autonomous Systems will support the development, integration, and testing of software for autonomous drone navigation and mission execution. The position will build…
Added 2 hours ago
Sr. Power Electronics Engineer - High Voltage, Satellites (Starlink)
SpaceX
Redmond, WA
Design power supplies that support 10s of kilovolts and hundreds of watts
Added 2 hours ago
Manufacturing Electrical Engineer
SEDAA
Plano, TX
The Manufacturing Electrical Engineer II will support manufacturing operations through the development, maintenance, troubleshooting, and continuous improvement of electrical test systems,…
Added 2 hours ago
A
Quality Engineer
Actalent
Eden Prairie, MN
- $43 to $52 USD / hour
Collaborate closely with manufacturing and other cross-functional development teams to support product and process improvements.
Added 2 hours ago
Software Development Engineer II, Selling Partner Trust & Compliance
Amazon.com Services LLC
Seattle, WA
Are you passionate about creating both the best buying AND selling experience on the internet? Would you enjoy being able to tell your friends your team shipped code that made buying on…
Added 2 hours ago
Manufacturing Engineer II
Inertia Dynamics LLC
New Hartford, CT
The Manufacturing Engineer plans, directs, and coordinates manufacturing processes in industrial plant: Develops, evaluates, and improves manufacturing methods, utilizing knowledge of…
Added 2 hours ago
Systems Engineer II
RTX
United States
…thrive in dynamic environments? Raytheon is seeking a talented and motivated Systems Engineer II to join our team within the Systems Engineering and Test Capabilities (SETC) Discipline,…

Closed listing

Mastercard

Software Engineer II

O Fallon, MO, United States

Pay Ranges O'Fallon, Missouri: $92,000 - $147,000 USD

This opening has closed.

The original listing is kept below for reference.

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Job details

Pay: Pay Ranges O'Fallon, Missouri: $92,000 - $147,000 USD
Posting language: English
Posted: Nov 4, 2026

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Original job description

Archived listing. The details below describe a past opening.

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 Remote Payment Presentment Service (RPPS) Program is engaged in developing innovative solutions to keep Mastercard positioned as a leader in delivering value-added services and seamless customer onboarding. 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 hiring a Software Engineer II, and 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, maintain, and support high-quality software solutions using modern software engineering principles and practices.
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 working within Agile and Waterfall delivery methodologies.
Experience developing and supporting cloud-native applications utilizing AWS cloud services.
Understanding observability, monitoring, operational readiness, and reliability engineering concepts.
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 02/02/2027. 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

About employer

More about this job

Skills

Onboarding
Engineering principles
Process improvement
Architecture regulations
Documentation
CI/CD
Troubleshooting
Root cause analysis
Regulatory compliance
Design principles
Software development
Security regulations
AWS
Problem solving
Relationship building
Communication skills
Oracle Java
Oracle
Microsoft SQL Server
MySQL
PostgreSQL
NoSQL
MongoDB
API development
IBM WebSphere
Jboss
Apache Tomcat
HTML
JavaScript
jQuery
UNIX
AWK
CSS
C#
React
Microsoft Visual Studio
RAD
Agile
Computer technology
Computer science

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