Principal Full Stack Engineer – AI Technology

Fidelity Investments•Boston, MA

17d•$107,000 - $216,000•Onsite

About The Position

We are looking for an experienced Principal Full Stack Engineer to build scalable AI capabilities for Fidelity Wealth. In this role, you will partner with business, product, architecture, data, and platform teams to turn Wealth priorities into secure, reliable solutions that help advisors work more effectively and improve customer experiences.

Requirements

Bachelor’s degree or equivalent experience with 8 plus years of software engineering experience, or a master’s degree with 6 plus years of experience.
Strong technical judgment and the ability to navigate evolving technology landscapes.
A builder mindset.
Curiosity, initiative, and a willingness to challenge assumptions and ask thoughtful questions.
Experience with modern programming languages, frameworks, algorithms, data structures, and design patterns.
A test-first approach and commitment to quality engineering practices.
Clear communication skills and the technical depth to lead meaningful design discussions.
Strong understanding of software architecture and design patterns for scalable, resilient systems.
Proven experience with at least one modern language, such as Python, Node.js, or Java.
Hands-on experience with cloud platforms such as AWS, Azure, or Google Cloud.
Experience using GenAI tools such as GitHub Copilot, Gemini, or Claude.
Strong problem-solving skills, sound judgment, and a growth mindset.
Ability to collaborate effectively, embrace feedback, and deliver on commitments.

Responsibilities

Build scalable AI capabilities for Fidelity Wealth.
Partner with business, product, architecture, data, and platform teams to turn Wealth priorities into secure, reliable solutions.
Help advisors work more effectively and improve customer experiences.
Turn ideas into working prototypes and production-ready solutions.
Mentor engineers, own issues, and deliver end-to-end solutions.