Demo

Principal Full Stack Software Engineer

Fidelity Investments
Fidelity Investments Salary
Merrimack, NH Full Time
POSTED ON 4/8/2026
AVAILABLE BEFORE 5/28/2026
Job Description

The Role

Fixed Income Technology is looking for a Principal Full Stack Engineer to join the Trading Services team. As a member of our team, you will be working with product owners, UX designers, and business analysts to understand the UX designs and business requirements. Collaborate with Architecture, Data Services, and other Technology Teams and propose, design, develop and implement solutions that meet functional and non-functional requirements. Fully engaging in product quality plan efforts, including test case development, design and code reviews and regression testing. Manage Releases and be part of an on-call rotation to provide Level 3 production support for our applications. Actively contribute to evangelize engineering practices and the definition of source control strategy, performance strategy, environment strategy, and build and deployment pipelines. Guide, mentor other associates and be highly productive in an agile project delivery environment.

The Expertise and Skillls you bring.

  • Bachelor’s degree in computer science, Mathematics, or Engineering or similar.
  • 10 Years of Experience in Software Engineering and 2 years of experience as a Technical Lead
  • Experience designing and developing backend applications using Java (server-side) object-oriented programming skills.
  • Experience in Microservices, Spring/SpringBoot and developing REST API’s.
  • Experience designing and developing User Interface application using programming skills such as HTML, CSS/SCSS, JavaScript, TypeScript, Node and Angular.
  • Experience in Micro front-end architecture and modular design.
  • Experience in messaging frameworks such as Kafka.
  • Experience with CI/CD tools, frameworks, and methodologies like Jenkin, Maven, Blue/Green etc.
  • Experience with Jmeter, JUnit, Jest, Cypress, Playwright or similar frameworks.
  • Experience working in public cloud platforms, preferably AWS, knowledge of Docker, EKS, serverless architecture is a plus.
  • Knowledge of SQL development and PLSQL procedures.
  • You are a fast learner and an excellent teammate.
  • You can efficiently work on a small development team, as well as lead in-depth technical designs.
  • You are self-motivated, guided, and have a strong customer focus and results oriented approach.
  • You have strong written and verbal communication skills to successfully engage with the technical team.

The Team

The Trading Services team is part of the Fixed Income Technology within Fidelity Investment Asset Management Technology (AMT). AMT provides worldwide technology and support to all the Investment Management, Research, Trading, and Investment Operations functions. AMT is an integral partner for Asset Management to deliver innovative, scalable, industry-leading investment tools that enable Asset Management to achieve competitive advantage globally. This team contributes to ongoing project work of the trading, cash management, and market surveillance applications used by Fixed Income Investment Professionals. Also, supports the modernization of UI tech stack to bring best and unified user experience to Investment professionals.

Certifications

Category:

Information Technology

Most roles at Fidelity are Hybrid, requiring associates to work onsite every other week (all business days, M-F) in a Fidelity office. This does not apply to Remote or fully Onsite roles.

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 Software Engineer in Merrimack, NH
$184,210 to $222,615
If your compensation planning software is too rigid to deploy winning incentive strategies, it’s time to find an adaptable solution. Compensation Planning
Enhance your organization's compensation strategy with salary data sets that HR and team managers can use to pay your staff right. Surveys & Data Sets

Sign up to receive alerts about other jobs with skills like those required for the Principal Full Stack Software Engineer.

Click the checkbox next to the jobs that you are interested in.

  • Bug/Defect Analysis Skill

    • Income Estimation: $74,092 - $105,774
    • Income Estimation: $82,809 - $110,162
  • Computer Simulation Skill

    • Income Estimation: $72,390 - $94,155
    • Income Estimation: $77,439 - $91,585
Employees: Get a Salary Increase
View Core, Job Family, and Industry Job Skills and Competency Data for more than 15,000 Job Titles Skills Library

Job openings at Fidelity Investments

  • Fidelity Investments Smithfield, RI
  • Job Description The Role and the Team IWMS (Institutional Wealth Management Services) is seeking a Full Stack Engineering Leader to drive development and e... more
  • 8 Days Ago

  • Fidelity Investments Smithfield, RI
  • Job Description The Team The SOX 404 team is seeking a hardworking professional to join the team! In this role, you will help grow an effective Sarbanes Ox... more
  • 8 Days Ago

  • Fidelity Investments Smithfield, RI
  • As a member of the Owned Channel Health team, you will be responsible for the ongoing monitoring, maintenance, and optimization of channel effectiveness an... more
  • 8 Days Ago

  • Fidelity Investments Smithfield, RI
  • Job Description Sr. Manager, VSO The Sr. Manager, VSO leads the VSO Support Team, ensuring supported employees receive reliable, timely, and high-quality t... more
  • 8 Days Ago


Not the job you're looking for? Here are some other Principal Full Stack Software Engineer jobs in the Merrimack, NH area that may be a better fit.

  • Fidelity Investments Merrimack, NH
  • Job Description The Role The High Income and Alternatives Technology team is looking for a hardworking, highly motivated software engineer lead with strong... more
  • Just Posted

  • Fidelity Investments Merrimack, NH
  • Job Description The Role We are looking for a passionate senior full stack software engineer to join the Finance and Fund Oversight team in the Asset Manag... more
  • 18 Days Ago

AI Assistant is available now!

Feel free to start your new journey!