Principal, Full Stack Engineer- Java, Spring Boot, React/Angular, AWS

Principal Full Stack Developer – FFIO Market Data

Note: Fidelity is not providing immigration sponsorship for this position

The Role

We’re seeking a highly skilled Principal Full Stack Developer with deep expertise in Java and Spring Boot to help build modern, scalable, and cloud‑enabled market data applications. Many of the systems you’ll develop may be internet‑facing or externally accessible, requiring a strong focus on secure design, data protection, and resilient architecture from the outset.
In this role, you will design, develop, test, and deploy services that support Fidelity’s mission‑critical market data ecosystem. You’ll work with technologies such as Java, Spring Boot, REST APIs, Angular/React, Apache Camel (nice to have), AWS, and distributed databases. Collaboration across engineering, architecture, and product teams will be essential as you deliver high‑quality solutions that help millions of Fidelity customers make informed financial decisions. This opportunity offers hands‑on experience with core Fidelity financial systems and the chance to build applications that power some of our most high‑value data pipelines.

The Expertise and Skills You Bring

• 8+ years developing enterprise applications with Java

• 8+ years building microservices using Spring Boot

• Strong full‑stack experience with modern front‑end frameworks (React, Angular, or similar)

• Proficiency in REST API design and implementation

• Knowledge of secure coding practices and OWASP considerations

• Experience with API authentication/authorization (OAuth2, OIDC, JWT)

• Ability to protect data in transit and at rest

• Understanding of threat exposure, rate limiting, and input validation

• Hands‑on experience with AWS services (EC2, EKS, S3, Lambda)

• Development experience with Apache Camel (nice to have)

• Experience with databases such as Oracle, Cassandra, PostgreSQL, or YugabyteDB

• Familiarity with CI/CD and containerization tools (Jenkins, GitLab, Docker, Kubernetes)

• Strong automated testing skills (unit, integration, performance)

• Delivery‑focused mindset with strong collaboration and commitment to engineering excellence

• Strong troubleshooting abilities across application, system, and network layers, with a Bachelor’s or Master’s in Computer Science or related field

The Team
The FFIO Market Data Engineering team delivers and supports innovative, high‑performance market data service solutions for internal business partners and external customers. Our engineers thrive in an environment of curiosity, experimentation, and continuous improvement—always driving toward a differentiated market data experience for Fidelity associates and clients.

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. Some roles may have unique onsite requirements. Please consult with your recruiter for the specific expectations for this position.

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.