Senior Software Engineer

Mastercard

Confirmed live yesterday Low trust

Quick summary

Work type
On-site
Location
O'Fallon, MO
Salary
$115,000–$184,000 / yr
Posted
40 days ago
Freshness
Confirmed live yesterday

Market check

Salary context

Below market

How this pay compares to similar roles

Similar $163k
This role $150k
$103k $226k
below market most similar roles pay here above market

This role pays less than 67% of similar roles. Most pay $149,500–$177,350 — the blue band above. At the midpoint, this role pays about $150k versus about $163k 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 162 open roles on FindRole.

Listed pay typically runs $122,000–$207,000 across 152 roles with salary data.

Most-posted roles

View all roles at Mastercard

At a glance

TL;DR · Senior Software Engineer

As a Senior Software Engineer, you will join a team dedicated to transforming how payment systems are built, scaled, and operated. You will lead the design and development of cloud-ready applications, microservices, and distributed systems that support large-scale payment processing platforms. Your daily responsibilities include translating complex product requirements into technical designs, leading development of modular applications, and implementing comprehensive testing strategies. You will ensure engineering excellence by performing code reviews, mentoring junior developers, and applying secure coding practices. The role requires hands-on experience with Java, Spring Boot, Kafka, REST APIs, JPA, and CI/CD. You must also possess skills in building AI-assisted applications, autonomous agents, and agentic workflows. This position solves critical technical challenges regarding the scalability, reliability, and modernization of high-performance payment infrastructure.

What does a Software Engineer earn in Missouri?

Median $149500 from 62 postings across 5 companies.

See salary data

What you'll do

  • Design software solutions and architecture decisions to support scalability, maintainability, and operational excellence.
  • Translate complex product requirements into technical designs and detailed implementation plans.
  • Lead the development of modular, extensible, and high-performance applications.
  • Design and implement comprehensive unit, functional, and integration testing strategies.
  • Analyze and optimize application performance, scalability, and reliability.
  • Apply secure coding practices and promote application security best practices.
  • Troubleshoot and resolve complex production issues using root cause analysis techniques.
  • Mentor junior developers and lead code reviews to ensure adherence to engineering standards.

What we're looking for

  • Strong hands-on experience with Java, Spring Boot, Kafka, REST APIs, JPA, and distributed systems.
  • Strong understanding of software design and software architecture principles.
  • Experience building highly scalable and resilient systems.
  • Experience implementing automated testing strategies and quality engineering practices.
  • Strong knowledge of performance engineering and production optimization.
  • Strong understanding of secure software development principles.
  • Experience leading code reviews and mentoring engineers.
  • Experience with microservices, cloud-native applications, CI/CD, and Agile Scrum.
  • Experience building AI-assisted applications, autonomous agents, or agentic workflows (preferred).

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