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# Principal Performance Engineer

- **Company:** Fmr LLC
- **Location:** Merrimack, NH, United States (Remote available)
- **Contract:** Permanent contract
- **Skills:** Java (Programming Language), Automation of Tests, Profiling, Software Debugging, Distributed Systems, Apache JMeter, Node.Js, Data Logging, Performance Testing, Spring Cloud, ReactJS, Grafana, Spring-boot, Gatling, AngularJS, Front End Software Development, Restful APIs, Microservices
- **Published:** July 9, 2026
- **Apply:** https://www.indeed.com/viewjob?jk=abda5f346c3b2b24

## About the Role

* Strong Java development experience
 * Hands-on experience building and maintaining services using Spring Boot
 * Solid understanding of RESTful APIs and distributed systems
 * Experience designing and executing performance/load tests
 * Strong debugging and profiling skills
 * Ability to read, write, and improve production-quality code
 * Experience with k6, Gatling, JMeter, or similar performance testing tools
 * Familiarity with Node.js
 * Frontend experience with Angular and/or React
 * Understanding of CI/CD pipelines and test automation
 * Experience testing cloud-native applications (containers, microservices)
 * Knowledge of observability tools (metrics, logging, tracing)
 * Experience working in Agile/Scrum development environments
 * A developer-first mindset with a strong interest in performance engineering
 * Someone who can bridge the gap between functional correctness and non-functional requirements
 * A collaborative engineer who can influence design decisions based on performance insights
 * Comfort stepping into existing codebases and improving them
 * You build positive relationships with other team members and have excellent verbal and written communication.

## Description

Fidelity Stock Transfer (FST) in Fidelity Labs is looking for a Principal Performance Engineer to join us. As a key member of a growing engineering team, this role will be hands-on building the technology and architecture of world class end-to-end systems. Learn more about FST at fidelitystocktransfer.com


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