Software Engineer II

Mastercard

Confirmed live yesterday High trust

Quick summary

Work type
On-site
Location
O Fallon, MO
Salary
$92,000–$147,000 / yr
Posted
2 days ago
Freshness
Confirmed live yesterday

Market check

Salary context

Below market

How this pay compares to similar roles

Similar $148k
This role $120k
$80k most similar roles pay here $206k

This role pays less than 78% of similar roles. Most pay $123,937–$172,325 — the shaded band above. At the midpoint, this role pays about $120k versus about $148k 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 116 open roles on FindRole.

Listed pay typically runs $122,000–$207,000 across 104 roles with salary data.

Most-posted roles

View all roles at Mastercard

At a glance

TL;DR · Software Engineer II

As a Software Engineer II within the Core Payments department, you will develop high-quality Java-based software components to facilitate billions of secure transactions between issuers, acquirers, and service providers. You will design, test, and maintain scalable systems while ensuring operational readiness through monitoring and troubleshooting. Your daily work involves building microservices and RESTful APIs using event-driven architectures, specifically utilizing technologies like Spring Boot, gRPC, Apache Kafka, and IBM MQ. To ensure system reliability, you will perform automated testing with JUnit, manage deployments via Kubernetes and Docker, and utilize Git and Bitbucket for version control. You will also apply secure coding practices and shell scripting to automate operations. This role addresses the critical challenge of maintaining high-performance, mission-critical platforms that power global commerce in a fast-paced Agile environment.

What does a Software Engineer earn in Missouri?

Median $149500 from 35 postings across 4 companies.

See salary data

What you'll do

  • Design, develop, and maintain high-quality Java-based software components for scalable payment systems.
  • Create technical designs that align with architectural standards to solve complex business challenges.
  • Build robust microservices and RESTful APIs using Spring Boot and event-driven frameworks like Kafka or gRPC.
  • Develop comprehensive unit, functional, and integration tests to ensure application quality and reliability.
  • Implement secure coding practices to minimize vulnerabilities and meet organizational security standards.
  • Perform root-cause analysis and troubleshoot system issues across development, testing, and production environments.
  • Optimize system performance by identifying and resolving bottlenecks in high-traffic applications.
  • Participate in peer code reviews to ensure maintainability and adherence to engineering standards.

What we're looking for

  • Experience developing microservices and RESTful APIs using Java, Spring Boot, and event-driven frameworks like gRPC or Apache Kafka.
  • Knowledge of software design principles, data structures, and object-oriented programming concepts.
  • Experience creating and maintaining automated unit tests using frameworks such as JUnit.
  • Proficiency with orchestration platforms and tools including Kubernetes and Docker.
  • Familiarity with scripting languages, preferably Shell scripting, to support automation and operations.
  • Experience using source control and collaborative development tools like Git and Bitbucket.
  • Understanding of secure coding practices and software quality standards.
  • Ability to troubleshoot and resolve moderately complex technical issues independently in a fast-paced Agile environment.

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