Principal Full Stack Engineer (Quant Development)
Job Description:
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.
Want more jobs like this?
Get jobs in Boston, MA delivered to your inbox every week.

The base salary range for this position is $107,000-$181,000 per year.
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.
Fidelity's hybrid working model blends the best of both onsite and offsite work experiences. Working onsite is important for our business strategy and our culture. We also value the benefits that working offsite offers associates. Most hybrid roles require associates to work onsite every other week (all business days, M-F) in a Fidelity office.
Certifications:
Category:
Information Technology
Perks and Benefits
Health and Wellness
- Health Insurance
- Dental Insurance
- Vision Insurance
- Life Insurance
- Short-Term Disability
- Long-Term Disability
- FSA
- HSA
- HSA With Employer Contribution
- Fitness Subsidies
- On-Site Gym
- Pet Insurance
- Mental Health Benefits
- Virtual Fitness Classes
Parental Benefits
- Birth Parent or Maternity Leave
- Non-Birth Parent or Paternity Leave
- Fertility Benefits
- Adoption Assistance Program
- Family Support Resources
- Adoption Leave
Work Flexibility
- Flexible Work Hours
- Remote Work Opportunities
- Hybrid Work Opportunities
Office Life and Perks
- Commuter Benefits Program
- Casual Dress
- Snacks
- Company Outings
- On-Site Cafeteria
- Holiday Events
Vacation and Time Off
- Paid Vacation
- Paid Holidays
- Personal/Sick Days
- Leave of Absence
Financial and Retirement
- 401(K)
- 401(K) With Company Matching
- Company Equity
- Performance Bonus
- Relocation Assistance
- Financial Counseling
- Profit Sharing
Professional Development
- Tuition Reimbursement
- Promote From Within
- Mentor Program
- Shadowing Opportunities
- Access to Online Courses
- Lunch and Learns
- Internship Program
- Work Visa Sponsorship
- Leadership Training Program
- Associate or Rotational Training Program
Diversity and Inclusion
Company Videos
Hear directly from employees about what it is like to work at Fidelity Investments.