Principal Full Stack Software Engineer
Company: Fidelity Investments
Location: Merrimack
Posted on: February 19, 2026
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Job Description:
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.
Keywords: Fidelity Investments, Portland , Principal Full Stack Software Engineer, IT / Software / Systems , Merrimack, Maine
