Senior Software Engineer

Mastercard

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Quick summary

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

Market check

Salary context

Below market

How this pay compares to similar roles

Similar $164k
This role $150k
$103k $225k
below market most similar roles pay here above market

This role pays less than 68% of similar roles. Most pay $149,500–$178,175 — the blue band above. At the midpoint, this role pays about $150k versus about $164k 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 150 open roles on FindRole.

Listed pay typically runs $122,000–$207,000 across 142 roles with salary data.

Most-posted roles

View all roles at Mastercard

At a glance

TL;DR · Senior Software Engineer

The Senior Software Engineer joins the team to support Cloud Connect initiatives by building secure, scalable connectivity platforms. This role involves designing, developing, and maintaining cloud-native applications and services that enable customers to connect to Mastercard services from public cloud environments and private networks. Key responsibilities include collaborating on system architecture, optimizing data structures for high-volume distributed systems, and conducting code reviews to ensure software quality. The candidate will utilize Golang, AWS technologies, Kubernetes, Docker, and Amazon EKS. Technical requirements include experience with VPC, Transit Gateway, PrivateLink, Route 53, and gRPC. The role also requires proficiency in Python, Git, Jenkins, and Artifactory to manage CI/CD pipelines. The work focuses on solving complex connectivity problems through secure coding, automated testing, and robust observability practices.

What does a Software Engineer earn in Missouri?

Median $149500 from 58 postings across 5 companies.

See salary data

What you'll do

  • Design, develop, and maintain secure, scalable cloud-native applications using Golang and AWS.
  • Contribute to software architecture, technical design reviews, and enterprise-standard architectural decision-making.
  • Optimize data structures, algorithms, and processing patterns for high-volume distributed systems.
  • Develop and maintain automated unit, functional, and integration tests using test-driven development.
  • Conduct code reviews and provide technical mentorship to promote coding standards and software quality.
  • Implement observability, monitoring, logging, and alerting for cloud-native services.
  • Perform root cause analysis and lead performance tuning to improve system reliability and efficiency.
  • Apply secure coding principles to identify and remediate vulnerabilities throughout the development lifecycle.

What we're looking for

  • Bachelor's degree in Computer Science, Management Information Systems, Engineering, or a related field.
  • 7+ years of software engineering experience designing, developing, and supporting enterprise applications.
  • 2+ years of hands-on experience developing applications using Go (Golang).
  • Experience designing, deploying, and operating cloud-native solutions on AWS.
  • Experience building and operating containerized applications using Kubernetes, Amazon EKS, and Docker.
  • Strong understanding of AWS networking services including VPC, Transit Gateway, PrivateLink, Route 53, Network Load Balancers, and Direct Connect.
  • Experience with Python 3.8 or higher (preferred).
  • Experience with protocol buffers and gRPC.

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