Principal Software Engineer at Fidelity Investments Boston, MA

Job Description:

The Role

As a Principal Software Engineer for Core Custody - Institutional Digital, you will be responsible for building and maintaining a new API platform for accessing Fidelity Digital Assets Services. This is a hands‑on role where you will work across engineering, architecture, and product teams to deliver a complete API offering that is reliable, resilient, and meets the needs of our customers.

The Expertise and Skills You Bring

• Bachelor's degree in Computer Science or related field required
• 8+ years of software engineering experience
• Expert in designing, building, and documenting customer facing RESTful APIs
• Experience in Java development
• Experience with Web Sockets and/or FIX APIs is a plus
• Prior experience designing and building large scale production distributed systems to support public facing websites
• Familiarity with AWS services architecture and solution patterns is preferred
• Exposure to infrastructure as code, test automation, CI/CD, and containerization
• Proficient in databases and SQL
• Ability to build reliable software that can withstand unreliable environments
• Strong analytical, communication, and organizational skills and the ability to handle multiple tasks at a given time
• Ability to collaborate stakeholders to understand business requirements

The Team

Fidelity Digital Assets, a Fidelity Investments Company, is developing a full‑service enterprise‑grade platform for storing, trading, and servicing digital assets, such as Bitcoin and Ethereum.

The Architecture Team is responsible for the technical vision across Fidelity Digital Assets and works with both technology and product teams to design secure, scalable, resilient cloud‑based services while ensuring that user requirements are met.

Fidelity Investments is an equal opportunity employer. We believe that the most effective way to attract, develop and retain a diverse workforce is to build an enduring culture of inclusion and belonging.

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, contact the HR Accommodation Team by sending an email to  .