Principal Performance Engineer

Fidelity Investments • Durham, NC

11d

About The Position

Fidelity Stock Transfer (FST) in Fidelity Labs is seeking a Principal Performance Engineer to join a growing engineering team. The role is hands-on and involves building the technology and architecture of end-to-end systems. The engineer will bring a developer-first approach to performance engineering, bridge functional correctness and non-functional requirements, and influence design decisions using performance insights. The role includes working in existing codebases and improving them, while collaborating and communicating effectively with team members.

Fidelity Labs is Fidelity Investments’ in-house fintech incubator. It builds new businesses, products, and services to support customers, businesses, and financial institutions. Its work combines startup-style experimentation and rapid adaptation with the scale and stability of an established company.

Fidelity is transitioning toward a full-time onsite working model through a phased rollout across regions and roles. Current onsite expectations vary by role and location and may evolve; the transition does not apply to fully remote roles. Fidelity will not provide immigration sponsorship for this position.

Requirements

• 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, including containers and microservices.
• Knowledge of observability tools such as metrics, logging, and tracing.
• Experience working in Agile/Scrum development environments.
• A developer-first mindset and strong interest in performance engineering.
• Ability to bridge functional correctness and non-functional requirements.
• Ability to collaborate and influence design decisions using performance insights.
• Comfort working in and improving existing codebases.
• Positive relationship-building skills and excellent verbal and written communication.
• Fidelity will not provide immigration sponsorship for this position.

Responsibilities

• Build the technology and architecture of end-to-end systems.
• Design and execute performance and load tests.
• Debug and profile software, and read, write, and improve production-quality code.
• Use performance insights to influence design decisions.
• Work with existing codebases and improve them.
• Collaborate with engineering team members and communicate effectively.

What This Job Offers

• Job Type: Full-time
• Career Level: Principal
• Education Level: No Education Listed