Senior Software Engineer

Mastercard

Confirmed live 2 days ago Trusted

Quick summary

Work type
On-site
Location
O Fallon, MO
Salary
$115,000–$184,000 / yr
Posted
11 days ago
Freshness
Confirmed live 2 days ago

Market check

Salary context

Below market

How this pay compares to similar roles

Similar $169k
This role $150k
$101k most similar roles pay here $248k

This role pays less than 74% of similar roles. Most pay $149,500–$188,277 — the shaded band above. At the midpoint, this role pays about $150k versus about $169k 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 · Senior Software Engineer

As a Senior Software Engineer on the performance engineering team, you will focus on improving response times for new applications supporting the Authorization payment network. You will partner with development teams to perform optimization and testing while ensuring high system quality. Your daily responsibilities include designing and executing performance tests, creating metrics like P95/P99 latency and concurrency, and identifying bottlenecks within Java code, databases, middleware, and vendor software. To succeed, you must possess strong experience in the Java Spring Boot framework and debugging with APM tools such as Dynatrace, Splunk, Jprofiler, and JMH. You will also optimize queries in PostgreSQL and Oracle. The role requires expertise in the payments industry, specifically regarding ISO 8583 messaging and the four-party model, to solve critical performance challenges within the payment infrastructure.

What does a Software Engineer earn in Missouri?

Median $149500 from 35 postings across 4 companies.

See salary data

What you'll do

  • Design, configure, and execute performance tests to identify and resolve system failures.
  • Create key performance metrics including requests per second, latency, query performance, and system utilization.
  • Analyze Java code, databases, middleware, and vendor software to identify and resolve performance bottlenecks.
  • Improve the performance environment through custom code development, automation, and external tools.
  • Coach and develop junior engineers using your technical expertise.
  • Deliver presentations to internal and external stakeholders regarding performance results.
  • Optimize database queries specifically within PostgreSQL and Oracle environments.

What we're looking for

  • Strong software engineering experience writing applications using the Java Spring Boot framework.
  • Strong experience debugging performance issues with APM tools such as Dynatrace, Splunk, Jprofiler, and JMH.
  • Strong experience optimizing DB queries in PostgreSQL and Oracle.
  • Experience with the payments industry (e.g., ISO 8583 messaging, 4-party model) is preferred.
  • Ability to design, configure, and execute performance tests while resolving failures.
  • Ability to identify and resolve bottlenecks in Java code, databases, middleware, and vendor software.
  • Strong verbal and written communication skills for presenting results to stakeholders.
  • Ability to coach and develop junior engineers.

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