Software Engineer II

Mastercard

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Quick summary

Work type: On-site
Location: O Fallon, MO
Salary: $92,000–$147,000 / yr
Posted: 2 days ago
Freshness: Confirmed live today
Nearby: 99+ roles within 25 mi

Market check

Salary context

Below market

How this pay compares to similar roles

Similar $140k

This role $120k

$81k most similar roles pay here $191k

This role pays less than 75% of similar roles. Most pay $119,500–$161,100 — the shaded band above. At the midpoint, this role pays about $120k versus about $140k for comparable roles.

Based on 240 similar postings.

Employer

About Mastercard

Mastercard is a global technology company in the payments industry, processing transactions between financial institutions and merchants using its extensive network of credit, debit, and prepaid card products. Industry: Payments Technology & Financial Services

Mastercard currently has 131 open roles on FindRole.

Listed pay typically runs $115,000–$184,000 across 118 roles with salary data.

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At a glance

TL;DR · Software Engineer II

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Software Engineer II joins the Services Technology organization to support AI & Decision Product Enablement platforms. This role focuses on the design, development, testing, and deployment of software solutions that power intelligent decisioning, real-time analytics, and fraud prevention capabilities. The engineer will build automated test frameworks, utilities, and reusable components while ensuring quality across the software development lifecycle. Key responsibilities include translating technical requirements into scalable validation solutions, performing root-cause analysis on distributed systems, and integrating automated quality solutions into CI/CD pipelines. The ideal candidate possesses over three years of Java experience, proficiency with Selenium, and familiarity with gRPC or similar API technologies. They must demonstrate expertise in object-oriented design, secure coding practices, and Agile methodologies to ensure the reliability of complex system integrations and high-quality software delivery.

What does a Software Engineer earn in Missouri?

Median $149500 from 38 postings across 5 companies.

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Skills

Java Selenium CI/CD gRPC SDLC Agile Scrum Kanban Object-Oriented Design Source Control API Distributed Systems

What you'll do

Design, develop, and maintain automated test frameworks and reusable components to improve software quality.
Translate business and technical requirements into scalable, automated validation solutions for applications and APIs.
Write secure, high-quality code while adhering to established engineering standards and design patterns.
Perform root cause analysis to troubleshoot, debug, and resolve defects in distributed systems.
Build and integrate automated quality solutions into CI/CD pipelines to support continuous testing.
Manage test data, environments, and execution activities required to meet delivery objectives.
Create and maintain technical documentation for automation frameworks and quality strategies.

What we're looking for

At least 3 years of hands-on Java development experience building and supporting enterprise applications.
Experience developing and maintaining automated test frameworks and suites, including hands-on experience with Selenium.
Understanding of software engineering fundamentals, object-oriented design, common design patterns, and the SDLC.
Experience with CI/CD pipelines, source control, automation, and modern software delivery practices.
Experience creating and executing unit, integration, regression, and end-to-end tests.
Familiarity with gRPC or similar API technologies and service-to-service integrations.
Strong troubleshooting, debugging, and root-cause analysis skills for distributed systems.
Knowledge of secure coding practices, code reviews, and software quality standards.