1,903,620open jobs
111,574companies
257,829added this week
Browse all
Salary
$92k – $147k per year
Location
In office (O'Fallon)
Seniority
Middle
Visa
H-1B filings in 12 months: 110 · for this role: 36 · green card filings: 139
Employment
Full-Time

Confirmed on the employer's own hiring board on Oct 21, 2026. First seen by Alion on Oct 15, 2026. Mastercard scores A on the Alion truth index.

Overview
Company
Impact
Profile match
Mastercard is an American payments technology company whose origins date to 1966, when a group of banks formed the Interbank Card Association to compete with BankAmericard. Like its main rival it does not issue cards or extend credit; it operates the network that authorises, clears and settles transactions between issuing banks, acquirers and merchants in more than two hundred countries. Headquartered in Purchase, New York, the company has built a large services business alongside the core network, covering fraud and identity products through its Ethoca and RiskRecon acquisitions, open banking, consulting and loyalty programmes.

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 IIOverview:

At Mastercard, our industry expertise is enhanced by our commitment to being a force for good in the world and to doing well by doing good. Mastercard relies on our global workforce to help us achieve our goal of building a sustainable, inclusive global economy. The Mastercard Way encourages us, connects us with the behaviors that represent the essence of not only what we do but who we are as an organization. Cultivating an environment for all employees that respects their strengths, views, and experiences drives a global and collaborative culture of inclusion and a sense of belonging.

MasterCard software engineering teams leverage Agile development principles, advanced development and design practices, and an obsession with security, reliability, and performance to deliver solutions that delight our customers. We are looking for talented software engineers to develop advanced technologies and applications that are revolutionizing payments.

  • Are you passionate about software engineering?
  • Do you enjoy seeing the impact your code has on a wide range of customers, which improves their experience?
  • Do you want to work for a company that offers above and beyond benefits including paid parental leave, flexible work hours, gift matching, and even volunteer incentives while encouraging your professional learning and development?
  • Do you thrive in a place where you are continuously learning more while growing your skills and career?
  • Do you want to join a Company that offers a competitive benefit-and rewards program that attracts, develops, and retains the most talented employees around the world?
  • Do you want to join an inclusive culture where employees, in all their diversity, feel valued, respected, and who can bring their authentic selves to work? Learn more at Mastercard’s Corporate Sustainability Report.

About the Role:

  • A hands-on engineer who writes and tests high-quality, secure code that is modular, functional, and testable.
  • Contribute to all parts of the software’s development including design, development, documentation, and testing.
  • Have strong ownership of your team’s software and are deep in the maintenance characteristics, runtime properties, dependencies, and build.
  • Communicate, collaborate and work effectively in a global environment.

All About You:

  • Strong foundation in algorithms, data structures, and core computer science concepts.
  • Evidence of working with object-oriented development and design patterns.
  • Proficiency in one or more modern programming languages such as Java (preferred), Python, C++, etc.
  • Strong written and verbal English communication skills.
  • Strong analytical and excellent problem-solving skills.

• Working knowledge of an Agile environment.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 [email protected] 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 01/13/2027. 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
Free account
Stop reading job ads. Get the ones that fit.
One free account turns this page into a shortlist built around your stack, your level and your pay.
Match on every job. Stack, seniority, pay and location, scored against your profile.
1,903,620 open roles. Read straight off company career pages, refreshed every day.
Unlimited applications. Every one you send is tracked in one place, on-site or on a company board.
3 tailored CVs a month. Rewritten for the exact job you are applying to. Included free.
Create a free account Continue with Google
Free forever. No card. Under a minute.

Your match

How well do you fit this role?
Two answers are enough for a real match. No account needed.
Check my fit
Answers stay in this browser until you create an account.

Recommended for you based on this role

Backend
Similar stack
Same company
O'Fallon
$131k – $154k per year • Remote (United States) • Full-Time • 2+ years exp
DevOps
CI/CD
Kubernetes
Platform Engineering
Apply
Software Engineer III 4 months ago
$106k – $165k per year • In office • Full-Time • 9+ years exp • Bachelor's Degree • Chicago • Kansas City
Python
JavaScript
C#
Node JS
Databases
PostgreSQL
Redis
Oracle
DynamoDB
MS SQL
DevOps
Azure
CI/CD
AWS
AWS Lambda
Amazon EC2
Amazon S3
IAM
Amazon ECS
Amazon CloudWatch
Cybersecurity
SOC 2
Microsoft Entra ID
Management
Agile
Apply
$165k – $190k per year • Equity • Hybrid • Full-Time • 2+ years exp • New York
Go
Java
Rust
Databases
Pinecone
Apache Kafka
AI/ML
Copilot
Cursor
Claude Code
DevOps
GCP
Azure
AWS
Amazon Kinesis
Apply
$107k – $160k per year • In office • 5+ years exp • Wayzata
SQL
C#
C#
.NET
Management
Oracle ERP
Apply
$85k – $100k per year • In office • 2+ years exp • High School Diploma • Grand Rapids
JavaScript
SQL
C#
Node JS
Objective-C
C#
.NET
Entity Framework Core
Databases
MySQL
Oracle
MS SQL
Azure Cosmos DB
Azure SQL Database
AI/ML
Machine Learning
Mobile
Xamarin
MVC
DevOps
Azure DevOps
GitHub Actions
Azure
CI/CD
GitHub
GitLab
Analytics
Power BI
SSIS
SSAS
Apply
$140k – $231k per year • In office • Full-Time • Bachelor's Degree • O'Fallon
JavaScript
Java
TypeScript
Node JS
Scala
Frontend
Angular
DevOps
CI/CD
Cybersecurity
Threat Modeling
Management
Agile
Apply
$115k – $184k per year • In office • Full-Time • 6+ years exp • Bachelor's Degree • O'Fallon
Python
JavaScript
Java
TypeScript
SQL
Java
Spring Boot
Databases
Databricks
Oracle
Delta Lake
AI/ML
Copilot
Spark
Machine Learning
Frontend
Angular
React.js
DevOps
Rest API
GCP
Azure
CI/CD
AWS
Docker
Kubernetes
Management
Agile
Apply
up to $120k per year • In office • 3+ years exp • O'Fallon
Apply
≈ $24k – $42k per year (Estimated) • In office • Part-Time • 2+ years exp • O'Fallon
Apply
Janitor 2 days ago
≈ $24k – $42k per year (Estimated) • In office • 1+ year exp • High School Diploma • O'Fallon
Apply
See all jobs
This is one of many
1,903,620 more open roles from verified company boards, updated every day.