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Added 54 mins ago
Cybersecurity Threat Intelligence Engineer II - Att@ck
Premera Blue Cross
Mountlake Terrace, WA
…scenarios that reproduce real-world attacker behaviors, assess security telemetry and detection capabilities, identify defensive gaps, and work closely with the Threat Intelligence and…
Added 58 mins ago
A
Devsecops Engineer
Actalent
Colorado Springs, CO
- $50 to $75 USD / hour
Job Title: DevSecOps EngineerJob DescriptionThe DevSecOps Engineer designs, builds, and maintains secure, automated software delivery pipelines for complex radar systems operating in highly…
Added 1 hour ago
Field Service Technician II (ATM) - St. Louis, MO.
Military Spouse Jobs & VetJobs
United States
Are you a Field Technician, Field Engineer, or Service Technician - or interested in starting a career in this field? Are you tech savvy with strong mechanical aptitude and transferrable…
Added 1 hour ago
Field Service Technician II (ATM) - Erie, PA
Military Spouse Jobs & VetJobs
United States
Are you a Field Technician, Field Engineer, or Service Technician - or interested in starting a career in this field? Are you tech savvy with strong mechanical aptitude and transferrable…
Added 1 hour ago
Field Service Technician II - Hartford, Connecticut
Military Spouse Jobs & VetJobs
United States
Are you a Field Technician, Field Engineer, or Service Technician - or interested in starting a career in this field? Are you tech savvy with strong mechanical aptitude and transferrable…
Added 2 hours ago
Cyber Systems Security Engineering Sr - E3
Lockheed Martin
Littleton, CO · King of Prussia, PA · Littleton · King of Prussia
The Fleet Ballistic Missile (FBM) program is seeking a Cybersecurity Engineer to help safeguard critical defense systems and support the resilience of strategic deterrence capabilities. In…
Added 2 hours ago
Systems Engineering Field Tech Support Sr - E3
Lockheed Martin
Cape Canaveral, FL · Cape Canaveral
…be rendered by the basic level of field hardware and systems software service. Employee is usually introduced to the customer site when the nature of equipment service required is beyond…
Added 2 hours ago
Software Engineer, Full Stack & AI-Native Development (MTS)
Salesforce, Inc.
TX
…Development team is looking for a sharp, curious Full Stack Software Engineer who loves building great software and building it fast with modern AI tooling. This role is first and foremost…
Added 2 hours ago
Equipment Maintenance Engineer
Harbinger Motors Inc.
Garden Grove, CA
Harbinger Motors is expanding, and we are looking for an Equipment Maintenance Engineer to support our advanced EV manufacturing lines (Battery, General Assembly, EDU, Stator/Hairpin). This…
Added 2 hours ago
Engineer II, Automated Test Systems (Onsite)
RTX
United States
The ability to obtain and maintain a U.S. government issued security clearance is required. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance
Added 2 hours ago
Product Security Engineer (Senior)
The Boeing Company
Seal Beach, CA · El Segundo, CA
The Boeing Company is seeking a Senior Product Security Engineer to join the Boeing team in Seal Beach, CA or El Segundo, CA. This position will focus on supporting a proprietary program…
Added 2 hours ago
Mission Engineer II - Grand Rapids
Axon
Remote, United States
…and justice issues with our ecosystem of devices and cloud software. Like our products, we work better together. We connect with candor and care, seeking out diverse perspectives from our…
Added 3 hours ago
Sr. Software Engineer (Starlink)
SpaceX
Redmond, WA
As a Sr. Software Engineer on the Starlink Enterprise Products team you will define, build, and deploy product features and capabilities that unlock new opportunities to advance global…
Added 3 hours ago
Software Test & Automation Engineer II
Quantum Space
Rockville, MD · 801 Thompson Ave. Suite 201 Rockville, MD
We are seeking a skilled and motivated Software Test & Automation Engineer II to develop and maintain automated testing solutions that ensure the reliability, functionality, and performance…
Added 4 hours ago
OT Network Engineer, Mission Systems
SpaceX
Memphis, TN
SpaceX is looking for an exceptional network engineer with experience in mission-critical and large-scale production environments to support high-cadence launch operations as well as…
Added 4 hours ago
Engineer, Asset Operations
FirstEnergy
Akron, OH
…will be responsible for developing operating standards, cyber security baselines and test procedures for new and existing protective relays and other operational technology cyber assets…
Added 4 hours ago
AT
Software Engineer II
Akamai Technologies, Inc.
Columbus, OH
- $95,000 to $171,000 USD / year
As a Software Engineer II, your code will serve high-traffic, global applications while you gain deep expertise in large-scale system design, performance engineering, and emerging…
Added 4 hours ago
Senior DevOps Engineer
Resource Management Concepts, Inc.
Charleston, SC
The engineer will work closely with software developers to establish consistent environments and move services into reliable, scalable deployments. Candidates should understand how cloud…
Added 5 hours ago
Field Service Technician II – Hartford, CT.
NCR Atleos
United States
Are you a Field Technician, Field Engineer, or Service Technician - or interested in starting a career in this field? Are you tech savvy with strong mechanical aptitude and transferrable…
Added 5 hours ago
BP
Senior Data Engineer
Brookfield Properties (USA II) LLC
NY
- $160,000 to $180,000 USD / year
We are seeking a Senior Data Engineer to join Brookfield in New York, NY. In this role, you will play a key role in inspiring change and continual improvement. If you are committed to…
Added 5 hours ago
Construction Mechanical Engineer II
Relativity Space
Long Beach, CA
…the ground up. Whether you’re in propulsion, manufacturing, software, avionics, or a corporate function, you’ll collaborate across teams, shape decisions, and see your work come to life in…
Added 5 hours ago
Transportation Planner II
City of Charlotte
United States
Coordinate with operators, software vendors, and city technology staff to address data quality, reporting, and appropriate handling of program data.
Added 5 hours ago
Data Center Chief Engineer
Amazon Data Services, Inc.
Boardman, OR
You’ll join a diverse team of software, hardware, and network engineers, supply chain specialists, security experts, operations managers, and other vital roles. You’ll collaborate with…
Added 5 hours ago
Manager, Cloud Engineering
S&P OPCO LLC
NY
Job Duties: S&P OpCo, LLC seeks a Manager, Cloud Engineering who will engineer storage solutions and content replication to meet performance requirements. Administer AWS infrastructure…
Added 5 hours ago
Engineer II, Software Development
Markit North America
Raleigh, NC
Job Duties: Markit North America, Inc. seeks an Engineer II, Software Development in Raleigh, NC to design, develop, and enhance database/back-end components supporting an internal…

Closed listing

US: Mastercard Technologies, LLC

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.

Find open jobs More jobs with this employer

About employer

Job details

Pay: Pay Ranges O'Fallon, Missouri: $92,000 - $147,000 USD
Closing date: Jan 23, 2027
Posting language: English
Posted: Oct 28, 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

Overview

The Franchise and Legal Solutions (FLS) Program enables growth in Mastercard’s products, markets, services, and innovations while protecting our brand and business in an increasingly complex and competitive environment. The team supports and protects the franchise agreement by implementing the rules of the road for anyone interacting with our business.

As a Software Engineer II, you will combine strong software engineering fundamentals with modern enterprise platforms, automation, data, and AI-enabled engineering to solve complex business problems. You will work across Java/Spring Boot applications, APIs and integrations, cloud platforms, Microsoft Power Platform, and generative AI technologies.

What You'll Do Software Development

Design, build, test, deploy, and support software solutions for medium-sized initiatives and defined components of larger enterprise programs.
Develop applications, microservices, REST APIs, and system integrations using Java/J2EE, Spring Boot, and related technologies.
Apply data structures, algorithms, design patterns, and software engineering principles to solve business and technical problems.
Build automation and business solutions using Microsoft Power Platform, including Power Apps, Power Automate, and Dataverse.
Create data and analytics solutions using SQL, data modeling, Power BI, and related technologies.
Use Python and/or TypeScript for automation, application development, data processing, and AI integration.
Develop enterprise AI applications and workflows using LLMs, generative AI, RAG, and agentic patterns.
Apply AI-assisted development tools such as GitHub Copilot, Claude Code, or comparable coding agents within engineering workflows.
Integrate AI models with enterprise applications, APIs, tools, and data sources using technologies and patterns such as MCP servers and tool/API integration.
Build AI-ready data and retrieval pipelines using technologies such as Databricks, Spark, embeddings, vector search, and knowledge management.
Create and maintain technical and software development documentation. Design & Architecture
Partner with business and product owners to translate defined requirements into scalable, maintainable solutions.
Apply established software design and architecture principles, patterns, and standards across applications, services, integrations, data flows, and platform dependencies.
Determine whether traditional software development, low-code, analytics, automation, AI, or a combination is appropriate for defined problems.
Build cloud-native solutions and integrate secure, responsible AI capabilities into enterprise applications.
Design AI components using RAG, vector databases, LLM APIs, MCP/tool integration, and agentic frameworks, considering scalability, reliability, security, and maintainability.
Simplify technical approaches while balancing business value, complexity, performance, maintainability, and cost.

Quality & Secure Engineering

Develop and maintain automated unit, functional, and integration tests using frameworks such as JUnit and Spock.
Apply secure coding, information security, web application security, and applicable PCI DSS principles throughout the software development lifecycle.
Review code to improve quality, readability, maintainability, security, and adherence to engineering standards.
Build and maintain CI/CD pipelines using Git/Bitbucket, Jenkins, Maven, Artifactory, and related tools.
Incorporate DevSecOps practices across development, testing, deployment, and support.

Performance & Operational Excellence

Provide production support and troubleshoot issues across applications, services, integrations, automation, and AI-enabled solutions.
Use logging, monitoring, and observability practices to diagnose issues and improve operational supportability.
Analyze and optimize application performance, scalability, reliability, and operational readiness.
Improve AI solution performance, latency, cost, reliability, quality, and operational health.
Independently take defined engineering problems through design, development, testing, deployment, and production support.

Collaboration

Collaborate with engineering, product, business, security, data, and platform partners to deliver measurable business value.
Share technical knowledge and engineering best practices across the team.
Contribute to Scrum or SAFe Agile delivery and help resolve cross-service dependencies and technical challenges.
Evaluate emerging technologies and identify opportunities for automation, AI, and innovation.
Demonstrate the Mastercard Way cultural values described for this role: own it, simplify it, sense of urgency, thoughtful risk-taking, unlock potential, and be inclusive, with a relentless focus on customers.

Required Qualifications

At least four years of software development, design, and architecture experience with moderately complex to complex applications.
Strong software engineering fundamentals, including software design, architecture, data structures, algorithms, design patterns, and system integration.
Proficiency developing applications, REST APIs, microservices, and enterprise integrations using Java/J2EE and Spring Boot.
Strong knowledge of unit, functional, and integration testing, including frameworks such as JUnit and Spock.
Ability to apply secure coding, application security, and information security principles throughout the software development lifecycle.
Knowledge of code review practices that promote quality, readability, maintainability, security, and engineering standards.
Understanding of performance engineering, including scalability, reliability, monitoring, and optimization.
Proven ability to support production applications through observability, monitoring, troubleshooting, and reliability practices.
Familiarity with CI/CD and DevSecOps practices using tools such as Git/Bitbucket, Jenkins, Maven, and Artifactory.
Knowledge of cloud, container, and enterprise platform engineering.
Demonstrated ability to independently take defined engineering problems from solution design through development, testing, deployment, and production support.
Hands-on use of AI-assisted development tools such as GitHub Copilot, Claude Code, or comparable coding agents.
Practical knowledge of generative AI and LLM-powered application development, including LLM APIs, RAG, AI agents, MCP servers, and tool/API integrations.
Proficiency with Microsoft Power Platform technologies, including Power Apps, Power Automate, and Dataverse.
Knowledge of SQL, data modeling, and analytics or visualization technologies such as Power BI.
Ability to use Python and/or TypeScript for automation, application development, or AI integration.

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 01/21/2027. 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

Software development
Microservices
API development
Oracle Java
Spring Boot
Engineering principles
Microsoft Power Platform
Power Apps
Microsoft Power Automate
SQL
Data modelling
Microsoft Power BI
Python
TypeScript
Process data
GitHub
Databricks
Apache Spark
Documentation
Architectural design
JUnit
Cybersecurity
CI/CD
Git
Atlassian Bitbucket
Jenkins
Apache Maven
Troubleshoot
Collaboration
Troubleshooting
Confidentiality

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