The Modernization Analysis and Acceleration team in Cash & Savings Technology at Fidelity Investments is seeking an experienced Principal Full Stack Engineer to play a key role in modernizing and building new cloud capabilities. The team supports retail products like 529, ABLE, Bill Pay, and back-end payment processing with common solutions. You'll work on transitioning mainframe capabilities to the cloud, developing reusable Java applications, and leveraging AWS services. The role requires expertise in Java 8+, Spring Boot, RESTful APIs, and various AWS tools. You'll help strengthen the engineering community while working in a hybrid model that blends onsite and remote work. The position offers comprehensive benefits including 401(k) matching, healthcare coverage, parental leave, and student loan assistance. As a privately held company, Fidelity values creating an inclusive workplace that attracts top talent and respects diverse perspectives.