Principal Full Stack Engineer

Fidelity Investments

Principal Full Stack Engineer responsible for hands-on technology development at Fidelity Labs. Key member of a dynamic and innovative fintech incubator team.

Posted 6/12/2026full-timeMerrimack • New Hampshire, New Jersey, North Carolina, Rhode Island, Texas • 🇺🇸 United StatesLead💰 $107,000 - $216,000 per yearWebsite

Tech Stack

Tools & technologies

AngularIonicJavaJavaScriptNode.jsReactReact NativeSDLCSpring

About the role

Key responsibilities & impact

hands-on building the technology and architecture of world class end-to-end systems

Requirements

What you’ll need

Strong software experience in developing
proven track record of delivering web applications
seasoned team leader proficient with the entire SDLC process
Expert level knowledge using React and/or Angular to build a single page application from scratch
Bonus points for experience with Storybook JS, React Native, Ionic and knowledge of micro-frontends architecture
Proficient level knowledge of RESTful APIs (Node.js & Java)
good knowledge of standard methodologies in API design
Professional experience integrating applications with REST based services
Full-stack development experience using Angular or React, Node.js or Java, HTML, CSS, JavaScript and Spring MVC/Spring Core/Web Services
comfortable working in an Agile software delivery environment
exposure to continuous integration and continuous delivery tools
Learning, adapting and adopting new concepts & technologies quickly and implementing them optimally
Understanding of fundamental design principles for building a modular and scalable platform
build positive relationships with other team members and have excellent verbal and written communication.

Benefits

Comp & perks

comprehensive health care coverage and emotional well-being support
market-leading retirement
generous paid time off and parental leave
charitable giving employee match program
educational assistance including student loan repayment, tuition reimbursement, and learning resources to develop your career

ATS Keywords

✓ Tailor your resume

Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills & Tools

ReactAngularNode.jsJavaHTMLCSSJavaScriptSpring MVCSpring CoreRESTful APIs

Soft Skills

team leadercommunicationadaptabilityrelationship buildingproblem solving