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Added 1 min ago
Lead Supplier Development, Industrialization & Quality Engineer - Battery Cell
Rivian
Irvine, CA
The Rivian Supply Chain team is looking for strategic technical leaders to drive the quality and reliability of our vehicle programs. As a Lead Supplier Development, Industrialization &…
Added 1 min ago
Structural Safety Engineer (CAE)
Rivian
Irvine, CA
The Structural Safety Engineer (CAE) supports the structural analysis and design efforts within the engineering team. This entry-level role provides the opportunity to gain hands-on…
Added 1 min ago
Sr. Systems Integration Engineer, Automated Drive
Rivian
Palo Alto, CA
Track and manage software changes across the modeling and data branches supporting Raven (perception) testing, in coordination with the engineer tracking the onboard branch.
Added 1 min ago
Sr. Systems Integration Engineer, Automated Drive
Rivian
Palo Alto, CA
Support preliminary functional verification of software releases on test vehicle platforms, prior to hand-off to development and validation teams.
Added 2 mins ago
PN
Software Engineer II
Pacific Northwest National Laboratory
Richland, WA · Seattle, WA
- $109,000 USD / year
As a Software Engineer on PNNL's Software Engineering and Architectures (SEA) team, you'll have the chance to shape mission-critical SI systems, help build enterprise-scale data platforms,…
Added 14 mins ago
J
Senior Infrastructure Security Engineer
Jobgether
Remote, United States
- $170,000 to $210,000 USD / year
…traditional insurance operations. As a Senior Infrastructure Security Engineer, you will play a dual role in strengthening cloud infrastructure and establishing robust security practices…
Added 26 mins ago
Software Engineer II- ECM Specialization
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Added 1 hour ago
Salesforce Solution Architect
Global Career Website
Remote, United States
As a Salesforce Solution Architect, you will lead high-performance, feature-driven development teams in building enterprise-level solutions for global brands. Operating with a "Forward…
Added 1 hour ago
CA
General Engineer
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Aliso Viejo, CA · Euless, TX
- $106,437 to $138,370 USD / year
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Added 2 hours ago
Sr. Electrical and Electronic Design Engineer - Future Forward
Intuitive
Sunnyvale, CA
The Future Forward group within Intuitive Surgical is searching for a Sr. Electrical and Electronic Design Engineer to architect, design, and bring up the electronic hardware behind…
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Senior QC Engineer, CMC / GMP QA
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Software Engineer II
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Added 2 hours ago
Structural Applications Engineer II
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Track recurring structural application issues across customers and projects and route them to Product Development in a structured, evidence-based format when a pattern suggests a product…
Added 3 hours ago
New Graduate Engineer, Mechanical - '26/'27 (Starlink/Starmind)
SpaceX
Bastrop, TX
The Bastrop site is the fastest growing site at SpaceX. With millions of square feet of manufacturing space and counting, this site is currently responsible for the development and…
Added 3 hours ago
Sr Principal Cyber Software Engineer (J)
Northrop Grumman
Jessup
Northrop Grumman Mission Systems is seeking a Cyber DevOps Engineer to support the Joint Cyber Weapons Common Services (JCWCS) program. JCWCS designs and implements mission applications…
Added 3 hours ago
Cyber Software Engineer (J)
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Jessup
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Principal Cyber Software Engineer (J)
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Engineer - Life Safety Systems & Telecom (NY)
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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 3 hours ago
Principal Network Engineer - Routing & Switching
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Odenton, MD
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Added 3 hours ago
Senior DevOps Engineer
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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 4 hours ago
Associate Radio Frequency Engineer
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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 4 hours 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 4 hours 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…
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Software Development Engineer II, Security Products
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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 4 hours ago
Staff Mechanical Engineer (Flexible Instruments)
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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…

US: Mastercard Technologies, LLC

Software Engineer II

O'Fallon, MO, United States

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

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Job details

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

Original job description

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

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