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Principal, Full Stack Engineer

Fidelity Investments
United Statesfull_timeVerifiedPosted 21 Aug 2025

About the role

Job Description:

Principal Full Stack Engineer – Fidelity Health Care Technology Group  

 

We're looking for engineers who are hardworking, inquisitive, and responsible individuals to help deliver the best digital web experience to our customers. The ideal candidate is deeply entrenched in front and middle tier development, with a passion for using tools and frameworks to guide the development of stable, robust, and resilient apps that best serve our customer base.  

 

The Team  

Our team builds outstanding digital experiences for Fidelity Health Care customers. We focus on crafting rich and compelling experiences using the best application design guidelines by way of robust tooling to provide healthcare benefits and management. We work in a collaborative, fast-paced environment and are committed to advancing a digital strategy to the delight of our customers.  

 

The Expertise You Have  

  • 6+ years of experience in designing and implementing web applications  

  • Bachelor’s degree of Computer Science or other related field.  

  • Professional experience in front-end frameworks and web technologies including HTML/CSS, JavaScript or Typescript, web components, and Angular.  

  • Solid knowledge with open-source stack technologies, and webapp/API security. 

  • Strong technical background on crafting and developing enterprise digital applications with MVC design pattern, micro front-end strategy and open micro service architectures.  

  • Proven experience with building digital restful APIs using Java and Spring Boot 

  • Proven experience in DevSecOps standard and tools like Jenkins or Jenkins Core, Git/GitHub.  

  • Proven experience in container and cloud technologies, including Docker, Kubernetes and AWS, as well as secure application development. 

  • Solid knowledge of cloud solutions, serverless architecture, containerization strategies  

  • Quality-first, testable solutions using TDD and automation.  

  • Deep understanding and experience of version control system management using various Git workflows.  

  • In-depth knowledge secure coding standards and practices  

  • Strong experience in leading in a reciprocal, team-based environment with a constant focus on learning, mentoring, and encouraging others. 

 

The Skills You Bring  

  • A passion crafting outstanding experiences using your strong understanding of functional programming and front end and API design patterns.  

  • Knowledge of the web application landscape, architectures, trends, and emerging technologies used in crafting performant, resilient, and robust web apps.  

  • Creative thinker with a passion for solving big or challenging problems.  

  • Excellent understanding of computer science fundamentals, data structures, and algorithms to ensure alignment to software engineering methodologies.  

  • Excellent understanding of Test-Driven Development and Test Pyramid in support of highly resilient and stable apps with a high degree of code coverage.  

  • Strong understanding of modern development principles such as trunk-based development, feature toggles, and branch by abstraction to support performant and collaborative engineering teams. 

  • Excellent communication and influencing skills to integrate effectively into the inclusive culture. 

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Company

Fidelity Investments

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