Jobs in the United States

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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
Direct, hands-on experience with software tracking systems and complex software versioning workflows, including coordinating changes across multiple parallel branches.
Added 3 mins ago
VI
System Test Lead
Viasat, Inc.
Carlsbad, CA · Reston, VA · Germantown, MD
- $190,500 to $285,500 USD / year
We have an exciting new opportunity for a System Test Engineer to join our Government team! You will work with a cross functional team in the development of our latest generation government…
Added 3 mins ago
PN
Senior Software Engineer III
Pacific Northwest National Laboratory
Richland, WA · Seattle, WA
- $133,100 USD / year
We are seeking a Senior Software Engineer to join PNNL's advanced SI engineering team and help build next-generation systems across agentic SI platforms, large-scale data orchestration, and…
Added 3 mins ago
PN
Lead Software Engineer IV
Pacific Northwest National Laboratory
Richland, WA · Seattle, WA
- $161,300 USD / year
We are seeking an exceptional Lead Software Engineer to architect and build next-generation SI systems at PNNL, spanning agentic SI platforms, petabyte-scale data orchestration, and…
Added 3 mins ago
PN
Early Career Software Engineer
Pacific Northwest National Laboratory
Richland, WA
- $83,100 USD / year
We are seeking a motivated Early Career Software Engineer to join our dynamic team at PNNL and contribute to cutting-edge projects that shape the future of critical technology supporting…
Added 3 mins ago
PN
Software Engineer II
Pacific Northwest National Laboratory
Richland, WA · Seattle, WA
- $109,000 USD / year
We are seeking a motivated Software Engineer to join our dynamic team at PNNL and contribute to cutting-edge projects that shape the future of critical technology supporting national…
Added 7 mins ago
Stationary Engineer
State of Connecticut
Southbury, CT
DDS is seeking a skilled and dedicated Stationary Engineer to help maintain the safe, reliable, and efficient operation of heating plants, boilers, and essential mechanical systems across…
Added 7 mins ago
Mechanical Engineer – HVAC/Building Systems
Farnsworth Group
Phoenix, AZ
Farnsworth Group is seeking a Mechanical Engineer – HVAC/Building Systems. In this role, you will design and coordinate mechanical building systems for healthcare, commercial, industrial,…
Added 13 mins ago
TT
Senior Backend Software Engineer
True Talent Solutions Partners
San Francisco, CA
- $200,000 to $400,000 USD / year
Join the engineering team at a consumer gaming company to build backend systems and features that support its core business. You will own projects end to end, solve data-driven challenges,…
Added 13 mins ago
TT
Senior Software Engineer, Autonomous Systems (C2/Backend/Service)
True Talent Solutions Partners
Palo Alto, CA
- $145,000 to $275,000 USD / year
Join a customer-facing product engineering team building command-and-control and autonomy software for robotic and autonomous systems. You will develop cloud and edge services that connect…
Added 15 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 15 mins ago
J
Java Product Engineer / Full Stack Java Developer
Jobgether
Remote, United States
- $90,000 to $110,000 USD / year
The Java Product Engineer / Full Stack Java Developer will design, develop, modernize, and support enterprise software applications in mission-critical environments.
Added 15 mins ago
Engineering Manager- Data Collection & Scanning
Jobgether
Remote, United States
Previous professional experience as a software engineer or systems engineer, building and operating production-grade systems.
Added 16 mins ago
Firmware Engineer - GPU
NVIDIA USA
CA
We are searching for an outstanding software engineer to fill an exciting, yet fun role on our GPU Firmware team. You will be joining a team whose primary mission is solving the intricate…
Added 22 mins ago
Lead Platform Engineer, AI and DevSecOps
RadarFirst
Remote, United States
RadarFirst is seeking a Lead Platform Engineer, AI & DevSecOps Engineer to lead the next stage of our cloud, security, reliability, and AI operations maturity. This role will own the…
Added 22 mins ago
Staff Software Engineer (AI Native Development)
Payroll Integrations Inc
NY · Carlsbad, CA · Marietta, GA
Staff Software Engineer (AI-Native Development)
Added 23 mins ago
Sr. Sustaining Mechanical Engineer
MURRYSVLLE-RIUS
Murrysville, PA
Sr. Sustaining Mechanical Engineer (Murrysville, PA)
Added 25 mins ago
Principal Engineer
B10 Wells Fargo Bank, N. A.
CHANDLER, AZ · IRVING, TX
The Principal Engineer will bring deep expertise in full-stack engineering, modern cloud platforms, and agent-based architectures, enabling intelligent, multi-agent systems that deliver…
Added 26 mins ago
Ground Systems Engineer I, Electrical
Rocket Lab USA
Stennis Space Center, MS
…proven execution history with the Electron program. GROUND SYSTEMS ENGINEER I, ELECTRICAL Based out of Rocket Lab's Test Facility at Stennis Space Center in Mississippi, the Ground Systems…
Added 26 mins ago
Field Coordinator
Entergy
Clinton, MS
…substations, transformer racks, transformer vaults, underground systems and other equipment, and be qualified to do the following and related work as…
Added 27 mins ago
Utility Engineering Analyst 1/2/3 Flex (PCN 086095)
State of Alaska
Anchorage, AK
Added 27 mins ago
Software Engineer II- ECM Specialization
Emergent Holdings, Inc.
Jackson, MS
Added 31 mins ago
IG
Test Engineer
Insight Global
Rancho Santa Margarita, CA
- From $65 USD / hour
Insight Global is looking for an experienced Test Engineer for a client providing secure aerospace and defense communications systems. These onsite roles in Rancho Santa Margarita,…
Added 33 mins ago
Lead Software Engineer
B10 Wells Fargo Bank, N. A.
COLUMBUS, OH
Wells Fargo is seeking a Lead Software Engineer within the Consumer Technology (CT) organization- providing technology solutions to the LOBs and manage the application portfolios through…

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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