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Added 1 min ago
Distinguished Engineer
Elevance Health
Mason, OH · Atlanta, GA · Indianapolis, IN
The Distinguished Engineer is responsible for leading the design, development, and deployment of large-scale, production-grade artificial intelligence (AI) systems and platforms that enable…
Added 1 min ago
Software Engineer 2 - C++ Maps Platform
Garmin International, Inc.
Olathe, KS · Cary, NC
We are seeking a full-time Software Engineer C++- Maps Platform at Garmin's U.S. headquarters in the Greater Kansas City area OR in our Cary, NC office to help improve how map data is…
Added 1 min ago
Senior Core Infrastructure Engineer
Oracle
Santa Clara, CA · Seattle, WA
…tolerance, and high availability. We are looking for a hands-on engineer with strong systems programming skills, end-to-end ownership, and an AI-first mindset to drive engineering…
Added 3 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 3 mins ago
Network Engineer III
LEIDOS, INC.
Huntsville, AL · Las Cruces, NM · Merritt Island, FL · Stennis Space Center, MS · Houston, TX · Greenbelt, MD · Hampton, VA · Mountain View, CA · Wallops Island, VA · Cleveland, OH · Washington, DC
Leidos is seeking a highly skilled and experienced Network Engineer to support the Advanced Enterprise Global Information Technology Solutions (AEGIS) program and join a large engineering…
Added 3 mins ago
Principal Network Engineer - Wireless
LEIDOS, INC.
Odenton, MD
Leidos is seeking a Principal Network Engineer – Wireless to lead engineering, deployment, and modernization of a large-scale, geographically distributed enterprise wireless network…
Added 6 mins ago
(Senior) Applications Engineer
Vertical Semiconductor
Somerville, MA
We’re hiring a (Senior) Applications Engineer to help customers design in next-generation vertical GaN power devices (100 V – 2300 V) and turn device performance into system-level wins.…
Added 7 mins ago
Cloud Infrastructure Engineer II
Astreya Partners, LLC
Oakland, CA
We are looking for a Cloud Platform Engineer. This role will be responsible for cloud infrastructure management, CI/CD automation, platform reliability, security compliance, and production…
Added 10 mins ago
Senior Software Engineer
THERMOWORKS INC
American Fork, UT
ThermoWorks is looking for a hands-on Senior Software Engineer to join our Product Development team. You’ll build and improve the software that brings our connected products to life, with a…
Added 11 mins ago
G
Software Engineer: ML Optimization
Generalist
Somerville, MA
- $260,000 to $350,000 USD / year
Added 14 mins ago
Water Sector Account Executive – Northern California
Arcadis
San Francisco
California Professional Engineer (PE) license or ability to obtain licensure within six months.
Added 17 mins ago
Lead Data Analytics Engineer
Cedar Rapids, IA · Denver, CO · Philadelphia, PA
Experience with Microsoft Fabric, including pipelines, OneLake, and data synchronization optimization
Added 18 mins ago
Sr. GNC Engineer / Modeling & Simulation
Mavensoft Technologies, LLC.
Chandler, AZ
Tittle: Guidance Navigation Control Engineer III
Added 21 mins ago
SS
MBS Administrator (68631)
Sunward Steel Buildings, Inc.
Denver, CO
- $85,000 to $105,000 USD / year
Sunward Steel Buildings is a family-owned, American manufacturer, that has been in business for over 50 years. We sell, engineer, and manufacture custom metal buildings, including…
Added 21 mins ago
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Founding AI Engineer
True Talent Solutions Partners
New York, NY
- $200,000 to $250,000 USD / year
Join an early-stage SaaS team as its fifth engineer and own the technical direction of a production AI voice agent for sales. The agent participates in live customer calls, conducts product…
Added 21 mins ago
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Robotics Software Engineer
True Talent Solutions Partners
Watertown, MA
- $130,000 to $180,000 USD / year
- Coordinate real-time robot software, motion-planning optimization systems, and machine-learning pipelines across platforms.
Added 26 mins ago
Staff Device Development Engineer
Samsung Austin Semiconductor, LLC.
Austin, TX
SAS is looking for a highly driven and technically accomplished engineer to lead critical initiatives within the New Technology Bridge Device Integration team. This is a high-impact role…
Added 26 mins ago
Experienced Module Integration Engineer
Samsung Austin Semiconductor, LLC.
Austin, TX
We are seeking a motivated and high-caliber Module Integration Engineer to join our 2nm GAAFET team. This role focuses on the Front-End-of-Line (FEOL) integration, specifically targeting…
Added 29 mins ago
GATEKEEPER Software Engineer-TS/SCI with Poly
CACI International
Elkridge, MD
Job Title: GATEKEEPER Software Engineer-TS/SCI with Poly
Added 29 mins ago
Electromechanical Engineer - Level 3/4 - Linthicum
Northrop Grumman
Linthicum Heights, MD
…spirit to our collaborative teams. As a Electro-Mechanical Engineer – Level 3 or Level 4 located in Linthicum, MD, you’ll be a linchpin in missions of paramount importance, defining the art…
Added 29 mins ago
Electromechanical Engineer Level 2 - Electronics Packaging - Linthicum
Northrop Grumman
Linthicum Heights, MD
We seek an early career Electro-Mechanical Engineer – Level 2 to join our team within the Intelligence Systems Business Unit. The successful candidate will learn to lead mechanical design,…
Added 29 mins ago
Senior AWS Generative AI Solution Engineer
Leidos
Gaithersburg, MD
Leidos is seeking an experienced Senior AWS Generative AI Solution Engineer to design and implement the reasoning layer for a GenAI-enabled HUD FHA Resource Center. The selected candidate…
Added 30 mins ago
Senior Controls Engineer
Florida Crystals Corporation
Baltimore, MD
The Senior Controls Engineer is the refinery’s technical authority for automation, instrumentation, industrial networking, and process control systems. This role ensures reliable, secure,…
Added 46 mins ago
Lead GNC Engineer – Flight Simulation
Mavensoft Technologies, LLC.
Chandler, AZ
Job Title: Guidance Navigation Control Engineer III
Added 46 mins ago
GNC Engineer - Modeling, Simulation
Mavensoft Technologies, LLC.
Chandler, AZ
Job Title: Guidance Navigation Control Engineer III

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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