Principal Quantitative Developer

Soteria Reinsurance Ltd.; Jersey City (NJ); On-site; USD 174,000 - 181,000; Full time

Job summary

Fidelity Investments is seeking a Principal Quantitative Developer to build reliable, scalable systems that support investment research and decision‑making. You’ll design APIs, data pipelines, and cloud‑based tooling, ensuring CI/CD, automated testing, and data integrity across production environments.

Role requires strong quantitative modeling, Python/R proficiency, and experience in asset‑class analytics.

Qualifications

• Candidates hold at least a Bachelor's degree in a quantitative/technical field and 5 years in a principal quantitative developer role.
• A Master’s degree with 3 years of related experience is also acceptable.

Responsibilities

• Analyzes and implements systematic investment strategies including time-series forecasting, multi-asset portfolio construction, and risk management frameworks.
• Translates research concepts into production‑ready software across the full software development lifecycle.
• Designs scalable, maintainable, and performant quantitative systems based on business needs.
• Provides domain expertise across asset classes and supports research teams in developing new models and tools.
• Mentors junior team members and collaborates with Product, Engineering, and Investment Research.

Skills

Quantitative modeling

Test case development

Regression testing

Python

R

CI/CD

Cloud-based systems

Education

Bachelor’s degree in Computer Science/Engineering/Mathematics/Statistics/Finance

Master’s degree in related field

Tools

Python

R

Cloud platforms

CI/CD tooling

Job description

Note: Fidelity will not provide immigration sponsorship for this position.

Position Description

Develops reliable and scalable systems that support investment research and decision‑making across the organization. Designs and enhances applications that bring quantitative insights to portfolio managers and analysts, ensures tools are easy to use, well‑supported, and aligned with business needs. Develops and maintains high‑quality API integrations, data pipelines, and cloud‑based systems to support advanced quantitative research. Ensures systems and applications adherence to software engineering best practices, including code reviews, continuous integration/continuous deployment (CI/CD), and automated testing. Troubleshoots and resolves production issues, ensuring high system reliability, data integrity, and operational excellence. Uses analytical and problem‑solving skills to assist in building and maintaining models that guide investment strategies. Supports the creation of automated processes and modern workflows that improve efficiency, data accessibility, and the overall quality of research. Implements automated testing through unit‑testing frameworks and test‑driven development methodologies to ensure reliability and model integrity.

Primary Responsibilities

• Analyzes and implements systematic investment strategies including time-series forecasting, multi-asset portfolio construction, risk management frameworks, alpha research, and simulation-based algorithms.
• Translates research concepts into production‑ready software solutions across the full software development lifecycle.
• Analyzes business and research requirements to design scalable, maintainable, and performant quantitative systems.
• Evaluates and applies emerging quantitative methodologies, analytics techniques, and industry trends to enhance investment capabilities.
• Provides domain expertise across asset classes including equities, fixed income, or alternative investments.
• Assists research teams in developing new quantitative models, tools, and products to strengthen competitive positioning.
• Partners with cross‑functional teams, including Product, Engineering, and Investment Research, to define requirements and deliver end‑to‑end solutions.
• Contributes to long‑term architecture planning, system modernization initiatives, and technology roadmap development.
• Communicates complex quantitative concepts, system designs, and analytical results to technical and non‑technical stakeholders.
• Mentors junior team members.

Education and Experience

• Bachelor’s degree in Computer Science, Engineering, Mathematics, Mathematics in Finance, Actuarial Science, Statistics, or a closely related field (or foreign education equivalent) and five (5) years of experience as a Principal Quantitative Developer (or closely related occupation) developing quantitative and analytical solutions within the financial investment or asset‑management domain.
• Master’s degree in Computer Science, Engineering, Mathematics, Mathematics in Finance, Actuarial Science, Statistics, or a closely related field (or foreign education equivalent) and three (3) years of experience as a Principal Quantitative Developer (or closely related occupation) developing quantitative and analytical solutions within the financial investment or asset‑management domain.

Skills and Knowledge

• Candidate must also possess: Demonstrated Expertise (“DE”) validating quantitative models by building test cases in multiple scenarios and verifying model parameters against existing documents; establishing and configuring reasonable assumptions in testing case; and verifying model updates by running regression testing.
• DE developing and researching portfolio risk analytic metrics on fixed income products using Python and R; and building portfolio level assumptions on a pool of assets (correlation, covariance, volatility, and industry classification of assets) using Python.
• DE designing and delivering scalable quantitative research applications to support investment decision‑making by collaborating with quantitative researchers and portfolio teams to translate analytical requirements into production‑ready tools; architecting user‑focused solutions that improve research efficiency, model transparency, and data accessibility; and integrating statistical techniques and investment insights into reliable software used across portfolio construction, optimization, and risk analysis.
• DE developing end‑to‑end analytical and research workflows in a technology‑driven investment environment by creating automated data processes and cloud‑based research pipelines; enabling systematic model development through clean data design, structured research frameworks, and reproducible analytical environments; and enhancing research platforms with intuitive interfaces, reusable components, and robust engineering practices aligned with organizational technology standards.

Salary

Salary: $174,000.00 to $181,000.00/year.

Certifications

Category: Information Technology 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 Onsite Working Model

Fidelity is transitioning to a full‑time onsite working model through a phased rollout across regions and roles. Currently, some roles and locations require 100% onsite presence, while others require less. Onsite expectations are likely to evolve as the rollout continues. This transition does not apply to fully remote roles.

At Fidelity, we are passionate about making our financial expertise broadly accessible and effective in helping people live the lives they want! We are a privately held company that places a high degree of value in creating and nurturing a work environment that attracts the best talent and reflects our commitment to our associates. We are proud of our diverse and inclusive workplace where we respect and value our associates for their unique perspectives and experiences. For information about working at Fidelity, visit FidelityCareers.com.

Fidelity Investments is an equal opportunity employer. Fidelity will reasonably accommodate applicants with disabilities who need adjustments to participate in the application or interview process. To initiate a request for an accommodation please contact the following: For roles based in the US: Contact the HR Leave of Absence/Accommodation Team by sending an email to [e-mail], or by calling 800-835-5099, prompt 2, option 2 For roles based in Ireland: Contact [e-mail] For roles based in Germany: Contact [e-mail] Fidelity Privacy Policy