Principal, Full Stack Engineer

Fidelity Investments • Jersey City, NJ

5d • Hybrid

About The Position

Principal Full Stack Engineer – Quantitative Portfolio Management Platform Note: Fidelity will not provide immigration sponsorship for this position. 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.

Requirements

• 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
• Java
• Spring Boot
• Relational databases (SQL, PL/SQL)
• Web Services

Nice To Haves

• 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

Benefits

• 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

What This Job Offers

• Job Type: Full-time
• Career Level: Principal
• Number of Employees: 5,001-10,000 employees