Senior Full-Stack Engineer, Trading Platform Performance

Fidelity Investments; Merrimack (NH); On-site; USD 140,000 - 200,000; Full time

Job summary

Fidelity Investments in Merrimack, NH, seeks a senior Performance Engineer to join the Trade Management Engineering team. You will design and optimize software for low-latency trading platforms, collaborating with engineers across the organization to deliver scalable, reliable systems.

The ideal candidate has 8+ years in software performance, strong Java/Spring/Python skills, and hands-on benchmarking with tools like JMeter.

Qualifications

• Bachelor's degree in CS/engineering or equivalent.
• 8+ years of software design, development and performance testing.
• Strong hands-on experience in Software Performance Engineering.
• Proficiency in Java, Spring, Python and Linux.
• Experience with performance harnesses and benchmarking tools.

Responsibilities

• Develop and maintain a high-performance trading platform with low latency requirements.
• Collaborate across teams to design scalable, resilient services.
• Mentor junior engineers and promote engineering best practices.
• Lead performance evaluations and root-cause analysis in production.

Skills

Java

Spring

Python

Linux

Performance testing with JMeter

Mentor junior engineers

Trading systems exposure

FIX protocol knowledge

Education

Bachelor’s degree in Computer Science / Engineering / Information Technology or equivalent

Tools

JMeter

Job description

Fidelity Investments in Merrimack, NH, seeks a senior Performance Engineer to join the Trade Management Engineering team. You will design and optimize software for low-latency trading platforms, collaborating with engineers across the organization to deliver scalable, reliable systems.

The ideal candidate has 8+ years in software performance, strong Java/Spring/Python skills, and hands-on benchmarking with tools like JMeter.