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Added 1 min ago
Quality Technician
Faith Technologies, Inc.
IN
…assurance policies and procedures) throughout the manufacturing process. The Quality Inspection Technician (QIT) is responsible for ensuring all manufactured assemblies are subjected to the…
Added 1 min ago
Telecommunications Engineer 3 - San Antonio, TX
M.C. Dean, Inc
San Antonio, TX
We are seeking a Telecommunications Engineer 3 to join our Security and Electronic Systems (SES) business Unit. As part of (SES) Strategic Business Unit you will be part of a team that…
Added 1 min ago
QC Lab Manager
Sila
Alameda, CA
…a better lithium-ion battery from the inside out today. We engineer and manufacture ground-breaking battery materials that significantly increase the energy density of batteries, while…
Added 2 mins ago
AI/ML Engineer (Computer Vision)
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Ashburn, VA
CACI is currently looking for an AI/ML Computer Vision Engineer with Agile methodology experience to join our BEAGLE (Border Enforcement Applications for Government Leading-Edge Information…
Added 2 mins ago
Presales Engineer
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Chantilly, VA
CACI is looking for a Presales Engineer to support the technical sales process for a value-added reseller (VAR) serving U.S. federal government and defense customers. This mid-level role…
Added 2 mins ago
Ground Systems Engineer, Asset Engineering
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As a ground systems engineer you will be directly responsible for the design, build, integration, and sustainment of system-level cryogenic and high pressure infrastructure across programs.…
Added 2 mins ago
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Inside Sales Engineer
Carrier Corporation
East Syracuse, NY
- $64,500 to $129,500 USD / year
Carrier EEO Statement and Accommodations Process
Added 2 mins ago
CC
Industrial Engineer
Carrier Corporation
Indianapolis, IN
- $64,500 to $129,500 USD / year
…We’re looking for a high-energy, self-motivated, industrial engineer to help us grow our market-leading position. As an Industrial Engineer, you’ll be an integral member of the Indianapolis…
Added 2 mins ago
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Industrial Engineer
Carrier Corporation
Indianapolis, IN
- $64,500 to $129,500 USD / year
…We’re looking for a high-energy, self-motivated, industrial engineer to help us grow our market-leading position. As an Industrial Engineer, you’ll be an integral member of the Indianapolis…
Added 2 mins ago
CC
Industrial Engineer
Carrier Corporation
Indianapolis, IN
- $64,500 to $129,500 USD / year
…We’re looking for a high-energy, self-motivated, industrial engineer to help us grow our market-leading position. As an Industrial Engineer, you’ll be an integral member of the Indianapolis…
Added 2 mins ago
Customer Support Specialist
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- Are technical enough to reproduce issues, read error states, and write a bug report an engineer can act on without a follow-up question
Added 3 mins ago
Senior Quality Engineer
Stryker Employment Company, LLC
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Stryker is hiring a Senior Quality Engineer for our Peripheral Vascular division in Irvine, CA to provide Quality Engineering support for quality assurance, quality control, and continuous…
Added 3 mins ago
Senior Process Engineer, Advanced Operations
Stryker Corporation
Portage, MI · Kalamazoo, MI
…and more satisfying lives. We are currently seeking a Senior Engineer, Process Development to join our OrthoTech Division. This is an onsite position in Portage,…
Added 3 mins ago
Sr. System Robotics Test Engineer
Stryker Employment Company, LLC
Fort Lauderdale, FL
We are currently seeking a Senior Systems Test Engineer to join our team in Fort Lauderdale, Florida. In this role, you will support the verification, validation, integration, and testing…
Added 4 mins ago
NPI Engineer
Ammortal Inc
Remote, United States
The NPI Engineer owns that transition. This role is the primary technical interface between Product Engineering and our contract manufacturing partners, driving manufacturing readiness from…
Added 6 mins ago
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(USA) Principal, Software Engineer
Walmart Inc.
United States
- $110,000 to $220,000 USD / year
The Principal Software Engineer leads platform engineering efforts by delivering scalable, cloud-native solutions and reusable infrastructure components. This role drives the full software…
Added 6 mins ago
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Distinguished, Software Engineer (Architect) | Omni Services | Sunnyvale
Walmart Inc.
United States
- $169,000 to $338,000 USD / year
15+ years of software engineering experience, including 8+ years in Architect, Principal Architect, Distinguished Engineer/Architect, or equivalent senior technical leadership roles.
Added 7 mins ago
Design Verification Engineer, Amazon Leo
Amazon Kuiper Manufacturing Enterprises LLC
Austin, TX · Irvine, CA · San Diego, CA
Added 8 mins ago
Distinguished Engineer
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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 8 mins ago
Electrical Engineer - Electrical Pre-Assignment
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Chandler, AZ
The Electrical Engineer - Pre-Assignment owns the integrity of the electrical pre-assignment database that drives semiconductor process tool hookup design. In this role you are accountable…
Added 8 mins 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 8 mins ago
Software Engineer 2
Garmin International, Inc.
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We are seeking a full-time Software Engineer 2 in our Cary, NC office. In this role you will be responsible for investigating new product concepts and technologies, proving extraordinary…
Added 8 mins ago
Senior Core Infrastructure Engineer
Oracle
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…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 8 mins ago
Process Engineer
Schweitzer Engineering Laboratories, Inc.
ID
As a Process Engineer, a typical day might include the following:
Added 9 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,…

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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