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Added 3 mins ago
Data Center Controls Engineer, Boling, TX
Amazon
Boling, TX
AWS Infrastructure Services owns the design, planning, delivery, and operation of all AWS global infrastructure. In other words, we’re the people who keep the cloud running. We support all…
Added 3 mins ago
Sr. Solutions Consultant
Sprinklr
Remote, United States
…speak from a position of confidence and credibility with their product and industry knowledge and can provide insights and build rapport easily while being a trusted…
Added 3 mins ago
Process Control Engineer - Control Systems (53405)
Chevron Phillips Chemical
Orange, TX
You may not realize it, but you’ve likely used a product today made possible by the plastics and chemicals manufactured by Chevron Phillips Chemical. From medical supplies and electronics…
Added 3 mins ago
Engineering Manager - Siteworks
Elkay
Caddo Mills, TX
The Siteworks Engineering Manager is responsible for leading Application and Product Engineering functions to support successful and accurate quoting, design, manufacturing, and…
Added 4 mins ago
Identity and Access Engineer II
Texas Health Resources
Arlington, TX
Identity and Access Engineer II - IT Identity Management
Added 4 mins ago
Principal Software Engineer - Simulation Data, Validation & Infrastructure
Caterpillar, Inc.
Irving, TX
…intelligent automation, and rigorous validation. This Principal Engineer role is a hands-on technical leadership position responsible for architecture, critical implementation, engineering…
Added 4 mins ago
Principal Software Engineer - Agentic AI & Simulation Automation
Caterpillar, Inc.
Irving, TX
This Principal Engineer role is a hands-on technical leadership position responsible for architecture, critical implementation, engineering standards, cross-team alignment, and mentoring.
Added 4 mins ago
Principal Software Engineer - Digital Twin and Simulation Platform
Caterpillar, Inc.
Irving, TX
This Principal Engineer role is a hands-on technical leadership position responsible for architecture, critical implementation, engineering standards, cross-team alignment, and mentoring.
Added 4 mins ago
Principal Software Engineer - Robotics & Physical AI Simulation
Caterpillar, Inc.
Irving, TX
This Principal Engineer role is a hands-on technical leadership position responsible for architecture, critical implementation, engineering standards, cross-team alignment, and mentoring.
Added 4 mins ago
Electrical Engineer I Neuromodulation
Abbott
Plano, TX
Basic understanding of engineering design processes and product development methodologies.
Added 4 mins ago
MC
Principal, Digital Security Engineer
Microsoft Corporation
Dallas, TX
- $130,900 to $272,300 USD / year
As a Principal, Digital Security Engineer you will take the lead in harnessing the power of AI to achieve customer leadership. Your efforts will be instrumental in executing solution sales…
Added 4 mins ago
Lead Planning & Optimization Advisor/Engineer
Marathon Petroleum Corporation
El Paso, TX · Houston, TX · Texas City, TX · San Antonio, TX
The Value Chain Optimization (VCO) team has an opening for a Cross-Regional Planning & Optimization Advisor/Engineer. The Cross-Regional Planning & Optimization Advisor/Engineer plays a…
Added 4 mins ago
Senior Data Engineer
Marathon Petroleum Corporation
Houston, TX · San Antonio, TX
As a Senior Data Engineer, you will design, develop, and optimize scalable data pipelines and cloud-based data solutions using modern data architecture, Azure data services, including Data…
Added 5 mins ago
HT
Advanced Mechanical Engineer - Heat Exchangers
Honeywell Technologies
Houston, TX
- $114,000 to $163,000 USD / year
…expertise to provide UOP and its customers with knowledge of the design, specification, operation, and capabilities of heat exchangers. You will develop the product designs necessary to…
Added 5 mins ago
OneStream Lead Analytics and Insights Engineer II Manager
Deloitte
Houston, TX · Fort Worth, TX · Westlake, TX · Dallas, TX
…unlock value. Your work may span strategy, operations, process design, and technology as we partner with clients to transform…
Added 5 mins ago
Development Engineer- Stabil Drill- Houston, Texas
Superior Energy Services
Houston, TX
Stabil Drill is currently seeking a Full-Time Development Engineer to join our team in Houston, TX.
Added 5 mins ago
HT
Advanced Chemical Engineer- Fired Heaters
Honeywell Technologies
Houston, TX
- $104,000 to $149,000 USD / year
…expertise to provide UOP and its customers with knowledge of the design, specification, operation, and capabilities of fired heaters. You will develop the product designs necessary to drive…
Added 5 mins ago
DevOps Engineer III
Deloitte
Dallas, TX · Houston, TX · Austin, TX
…Engineering Foundry, AI & E/EaaS - DevOps, you will support the design, implementation, and optimization of cloud, automation, and platform engineering solutions across complex…
Added 5 mins ago
Sr Principal Application Engineer
Cadence Design Systems, Inc.
Austin, TX
…demands exceptional technical depth, hands-on experience of design convergence, and the ability to align cross-functional teams toward delivering advanced design solutions for leading…
Added 5 mins ago
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Java Full Stack Engineer with Spring boot/AWS Experience
Cognizant
Austin, TX
- $86,000 to $99,000 USD / year
As a Java Full Stack Engineer with Spring boot/AWS exp, you will make an impact by designing and delivering scalable, cloud-native healthcare payer applications that improve payment…
Added 5 mins ago
C
AI Data Engineer
Cognizant
Austin, TX
- $100,000 to $115,000 USD / year
As an AI Data Engineer, you will make an impact by designing, building, and optimizing scalable cloud-native data engineering solutions that enable advanced AI-driven applications and…
Added 5 mins ago
C
AI Data Engineer
Cognizant
Austin, TX
- $100,000 to $115,000 USD / year
As an AI Data Engineer, you will make an impact by designing, building, and optimizing scalable cloud-native data engineering solutions that enable advanced AI-driven applications and…
Added 5 mins ago
Lead AI and Data Science Engineer II- Marketing Measurement
Deloitte
Fort Worth, TX · Houston, TX · Austin, TX · Dallas, TX · San Antonio, TX · Westlake, TX
…collaborative environment? As an experienced Lead AI and Data Science Engineer II - Marketing Measurement, you will have the opportunity to share new ideas and collaborate on projects as a…
Added 9 mins ago
C
Software Engineer - Crowdsourcing Platform
Calder
Redwood City, CA
- $125,000 to $250,500 USD / year
- Drive the design and implementation of our core crowdsourcing platform and systems
Added 9 mins ago
C
Research Engineer - Data Eval
Calder
Redwood City, CA
- $199,000 to $483,000 USD / year
…and partner well across research, robotics, engineering, and product. You communicate clearly, document thoroughly, and thrive in the ambiguity and pace of an early-stage…

Closed listing

Mastercard

Senior Software Engineer

O Fallon, MO, United States

Pay Ranges O'Fallon, Missouri: $115,000 - $184,000 USD

This opening has closed.

The original listing is kept below for reference.

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About employer

Job details

Pay: Pay Ranges O'Fallon, Missouri: $115,000 - $184,000 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

Senior Software Engineer

About the Role

The Mastercard Operational Intelligence Program is engaged in developing innovative solutions through technology that keeps Mastercard positioned as a leader in delivering value-added business analytics and reporting solutions to our diverse customer base. 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 seeking a Senior Software Engineer to join the Mastercard Operational Reports NexGen development team to work on Enterprise Applications to deliver technical solutions using JAVA technology stacks and Angular/ React front-end technologies. The successful candidate will contribute to software architecture, performance engineering, secure software development, operational excellence, and continuous improvement initiatives while delivering highly available, resilient, and secure enterprise applications.

Role

Participate in the gathering and analysis of business requirements and translate them into scalable, maintainable, and secure software solutions.
Support the technical lead in defining application architecture, software design patterns, component interactions, and technology standards.
Ensure software designs align with Mastercard Enterprise Architecture and leverage enterprise services and reusable platforms.
Ensure product development meets Mastercard's business, scalability, performance, security, and reliability requirements.
Ensure development teams utilize appropriate Mastercard development methodologies, engineering standards, and documentation practices.
Conduct and participate in code reviews to improve code quality, maintainability, security, consistency, and adherence to software engineering best practices.
Provide functional guidance, knowledge sharing, and technical recommendations to team members when appropriate.
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, reliability, and performance.
Support continuous integration and continuous testing practices to improve software quality and release confidence.
Ensure that software and system design support the goal of zero downtime, high availability, resiliency, and operational excellence in production environments.
Respond to operational and business concerns or issues relative to business programs, projects, and platform enhancements to ensure consistent delivery of quality services.
Investigate and resolve complex production, application, integration, and infrastructure issues through structured troubleshooting, root cause analysis, and corrective action planning.
Ensure development supports all required certifications and compliance 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, assess, and remediate application security vulnerabilities while ensuring alignment with Mastercard security standards and industry best practices.
Responsible for performance engineering of enterprise software architecture through monitoring, analysis, optimization, and scalability improvements across applications, APIs, databases, and cloud services.
Apply advanced data structures, algorithms, and software engineering principles to solve complex technical challenges and optimize system performance and resource utilization.
Responsible for designing, developing, testing, delivering, monitoring, and maintaining scalable, resilient, and secure cloud architectures using AWS services and cloud-native technologies such as EC2, ECS, and S3.
Design solutions with operational readiness in mind, incorporating observability, logging, monitoring, alerting, supportability, reliability, and maintainability best practices.
Improve and expand the existing platform by ensuring that it remains resilient, secure, scalable, highly available, and operationally efficient.
Work closely with business partners on product definition, product roadmaps, business case development, and overall technology direction for the team.

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 capable of functioning under pressure in an independent environment with a high degree of initiative and self-motivation.
Strong interpersonal and relationship-building skills with a proven track record of successful collaboration across teams.
Excellent communication skills required to interact across multiple organizational levels and partner effectively with internal and external stakeholders.
Strong understanding of data structures, algorithms, object-oriented design principles, and scalable application development techniques.
Experience designing scalable, secure, maintainable, and high-performing enterprise software solutions.
Experience conducting code reviews and applying engineering best practices that improve software quality, maintainability, and security.
Experience developing unit, functional, integration, and automated testing solutions within enterprise applications.
Experience identifying application bottlenecks and implementing performance optimization strategies 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 non-relational database technologies including Oracle, SQL Server, MySQL, PostgreSQL, NoSQL, MongoDB, or similar technologies
Strong troubleshooting and root cause analysis skills with experience supporting critical business applications in production environments.
Experience in the following is a 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 with development tools including Maven, Gradle, Jenkins, Chef, SonarQube, and related DevOps toolsets.
Experience working within Agile and Waterfall delivery methodologies.
Prior experience in cloud-native application development and AWS cloud services.
Strong understanding of observability, monitoring, operational readiness, and reliability engineering concepts.
Excellent knowledge of data engineering concepts and preferred experience working with DCP, Databricks, AWS, and large-scale enterprise data platforms.
Bachelor's degree in information systems, Information Technology, Computer Science, Engineering, or equivalent 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: $115,000 - $184,000 USD

About employer

More about this job

Skills

Reporting
React
Software development
Process improvement
Documentation
Engineering principles
CI/CD
Troubleshooting
Root cause analysis
Regulatory compliance
Design principles
Security regulations
AWS
Develop business case
Problem solving
Relationship building
Collaboration
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#
Microsoft Visual Studio
RAD
Apache Maven
Gradle

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