Principal, Full Stack Engineer

Principal Full Stack Engineer – Quantitative Portfolio Management Platform

The Role

Fidelity’s Asset Management Division is seeking a Principal Full Stack Engineer to join our Quantitative Research and Investing Technology (QRIT) team. You will play a key role in designing, developing, and delivering the quantitative portfolio management platform that supports Fidelity’s data-driven investment processes.

This is a hands-on senior individual contributor role that involves working closely with technology product owners, the portfolio engineering team, and peer technology teams to build robust, scalable tools. You will contribute directly to architecture, design, implementation, and the delivery of a cloud-native, microservice-based platform designed for scalable and resilient investment workflows.

The Expertise and Skills You Bring

• Bachelor’s degree (or higher) in Computer Science, Engineering, or a related field

• 7+ years of professional experience building complex backend and full-stack systems

• Required skills:

  • Java, Spring Boot

  • Relational databases (SQL, PL/SQL)

  • Web Services

• Preferred skills:

  • Angular or other modern front-end frameworks

  • AWS, EKS, Kafka, Redis, Jenkins

• Proven experience designing and delivering scalable, reliable, and secure cloud-native applications and microservice architectures in enterprise environments

• Exposure to statistics, linear algebra, or numerical optimization through coursework or professional experience is a plus, particularly in the context of portfolio construction or quantitative finance

• Familiarity with quantitative finance concepts (optimization, tracking error, risk models) is a plus but not required

• Knowledge of test-driven development, object-oriented design, and CI/CD practices

• Ability to thrive in a highly collaborative, senior engineering team while working independently and taking initiative

• Strong communication skills and proven ability to work effectively across cross-functional teams

The Team

The Quantitative Portfolio Management Technology team builds and maintains the platform that powers Fidelity’s quantitative investment strategies. We are a senior, collaborative engineering team that values autonomy, technical excellence, and clear communication.

This role offers the opportunity to influence the future of Fidelity’s quantitative investment capabilities, with potential for technical leadership and architectural ownership. You will work at the intersection of technology and quantitative research, building systems that empower advanced, data-driven investment decision-making.

Placement in the range will vary based on job responsibilities and scope, geographic location, candidate’s relevant experience, and other factors.

Base salary is only part of the total compensation package. Depending on the position and eligibility requirements, the offer package may also include bonus or other variable compensation.   

We offer a wide range of benefits to meet your evolving needs and help you live your best life at work and at home.  These benefits include comprehensive health care coverage and emotional well-being support, market-leading retirement, generous paid time off and parental leave, charitable giving employee match program, and educational assistance including student loan repayment, tuition reimbursement, and learning resources to develop your career.  Note, the application window closes when the position is filled or unposted.

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.

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.