Principal Full Stack Engineer

skillventory - A Leading Talent Research Firm

Principal Full Stack Engineer developing solutions for Fidelity’s brokerage platform. Collaborating with teams to deliver low latency and high throughput trading solutions.

Posted 7/1/2026full-timeMerrimack • New Hampshire, Texas • 🇺🇸 United StatesLeadWebsite

Tech Stack

Tools & technologies

CloudJavaJMeterLinuxPythonSpring

About the role

Key responsibilities & impact

Building and maintaining Fidelity’s brokerage platform order management and trade processing system
Delivering low latency and high throughput trading solutions
Working independently as well as collaboratively in a team environment
Actively contributing to the improvement of engineering practices such as code and design reviews, cloud strategy, and build and deployment pipelines

Requirements

What you’ll need

At least a bachelor’s degree in Computer Science, Engineering, Information Technology or equivalent, with a preference for advanced study
Minimum 8 years of software design, development and performance testing experience
Deep hands-on experience in Software Performance Engineering
Demonstrated skill in Java, Spring, Python, Linux
Hands on experience using tools like jMeter to build performance harness for software benchmarking
Willingness to guide and mentor junior team members on solid engineering practices
Previous exposure to trading systems or brokerage technology
Knowledge of the FIX protocol is a plus.

Benefits

Comp & perks

Professional development opportunities
Work across organization and collaborate with teams to build highly scalable and resilient trading platform
Deliver high quality, timely, cost effective and maintainable software solutions

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

Software DesignSoftware DevelopmentPerformance TestingJavaSpringPythonLinux

Soft Skills

Team CollaborationMentoring