Senior Lead, Performance Engineer

FIS

Senior Performance Engineer responsible for improving Money Movement products for North America clients at FIS. Collaborating on performance testing and application optimization with skilled team.

Posted 6/21/2026full-timeFlorida, Wisconsin • 🇺🇸 United StatesSeniorWebsite

Tech Stack

Tools & technologies

DockerHibernateJavaJenkinsKubernetesLinuxMavenOraclePostgresSeleniumSQL

About the role

Key responsibilities & impact

Work with a team of highly skilled and motivated professionals on enhancing North America Money Movement products supporting ACH and Instant Payments
Develop and execute performance, scalability, and high-availability tests, with a focus on reliability under load and failure conditions
Implement and continuously improve performance monitoring and observability to understand and optimize runtime characteristics
Build and maintain CI pipelines and automated test suites (unit, integration, and UI automation where applicable) using tooling such as Jenkins
Troubleshoot and tune application and platform performance across application servers, databases, and containerized environments

Requirements

What you’ll need

6+ years of applications development and performance engineering experience
Excellent knowledge of Java (JDK 1.8/17) and enterprise Java stack: JEE, Maven, Hibernate, EJB 3.1, plus integration technologies such as MQ
Strong hands-on experience with SQL, and service/interface technologies such as REST, XML, XSD, JSON
Proven expertise in monitoring and optimizing performance characteristics in complex systems
Expertise in writing tests with a focus on performance and high availability
Experience with continuous integration and automated testing practices (e.g., Jenkins, unit tests, integration tests, Selenium-based tests)
Very good knowledge of application servers such as WebSphere, WebLogic, JBoss, and OpenLiberty
Very good knowledge of Oracle or PostgreSQL, including performance tuning
Working knowledge of Docker and/or Kubernetes and Linux environments
Excellent problem-solving, teamwork, and time-management skills

Benefits

Comp & perks

Opportunities to innovate in fintech
Tools for personal and professional growth
Inclusive and diverse work environment
Resources to invest in your community
Competitive salary and benefits

ATS Keywords

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Hard Skills & Tools

JavaJEEMavenHibernateEJBSQLRESTXMLJSONperformance engineering

Soft Skills

problem-solvingteamworktime-management