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Principal, Full Stack Engineer

Fidelity Investments
Merrimack, NH Full Time
POSTED ON 7/20/2026 CLOSED ON 8/20/2026

What are the responsibilities and job description for the Principal, Full Stack Engineer position at Fidelity Investments?

Job Description

The Role

The High Income and Alternatives Technology team is looking for a hardworking, highly motivated software engineer lead with strong understanding of programming fundamentals and software design to join their ranks. Prior development experience in investment management domain will be a strong plus.

In this role, you will be responsible for the development of quality software components that are used by Portfolio Managers, and Analysts in managing of over $100 Billion in High Yield, Credit Alternatives, and Systematic Investment Research Funds. You will engage, shape, and productively contribute to Alphabet, our flagship portfolio construction platform.

In addition to building software, you will have an opportunity to help define and implement development practices, standards, and strategies across multiple teams.

The Expertise We Need

  • Bachelor's degree (or higher) in a quantitative or computational field such as Computer Science, Statistics, or Applied Mathematics.
  • 10 years of hands-on experience in building complex software solutions preferably working with investment management professionals.
  • Ability to effectively communicate with multiple stakeholders including researchers, portfolio managers, and technology partners.
  • Full-stack software development knowledge preferably with Angular, Java, Spring Boot
  • Experience with testing software, including writing automated unit, integration, performance, and end-to-end tests.
  • Favor Agile development practices that prioritize the incremental delivery of working software and respond well to change in requirement scope.
  • Ability to accept and adapt to scope changes incorporating it seamlessly.
  • Understanding of Fixed Income instruments, security analytics, investment workflow and functioning of bond markets is a significant plus.
  • Experience with AWS cloud environment development and deployment is a plus.
  • Kubernetes/EKS deployment and operations management exposure is a plus.
  • Progress towards CFA program certification is a significant plus.
  • Experience leading development teams through mentorship, technical expertise, and technical excellence

The Team

  • We have a passion for technology and love fixing and solving complex problems.
  • We enjoy working in teams, love to collaborate, share, and learn.
  • We are self-motivated, take initiative, and make decisions with a bias for action.
  • We care about the quality of our work, favor strong coding standards and patterns, and build with testability in mind.

Certifications

Category:

Information Technology

Please be advised that Fidelity’s business is governed by the provisions of the Securities Exchange Act of 1934, the Investment Advisers Act of 1940, the Investment Company Act of 1940, ERISA, numerous state laws governing securities, investment and retirement-related financial activities and the rules and regulations of numerous self-regulatory organizations, including FINRA, among others. Those laws and regulations may restrict Fidelity from hiring and/or associating with individuals with certain Criminal Histories.

Salary.com Estimation for Principal, Full Stack Engineer in Merrimack, NH
$132,228 to $163,376
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