Principal Full Stack Engineer

Job Title

Are you interested in serving the needs of millions of customers by building best-in-class API capabilities which help deliver experiences in financial planning, investing, and retirement? Our Personal Cards team is looking for solution-based engineers with a passion for developing easy-to-use, customer focused APIs and capabilities which power Fidelity's web and mobile experience platforms.

The Purpose of Your Role

Our teams build APIs and Digital capabilities that support Fidelity's large scale digital presence. You will help us design and develop re-usable APIs that focus on customer experience needs and optimize quality and deployment practices. You'll contribute to the entire development lifecycle from concept to deployment as a member of an agile, cross-functional team.

You will have the opportunity to share your technical knowledge to help strengthen our engineering community and further pursue your own learning of new technologies and platforms. We're looking for software engineers that enjoy a collaborative environment and have a passion for releasing high quality software through iterative software development practices.

The Expertise We're Looking For

You have a passion for technology and can navigate your way across complex and rapidly-changing landscapes by staying on top of latest trends and thrive by sharing knowledge.

Are a creator, a doer, and a disruptor who will help us solve real-life problems and meet real customer needs. You'll be helping us build things, taking an idea, and creating rapid prototypes that are shippable and learn from real-life feedback.

Are comfortable to be a self-starter, who actively challenges status-quo, is curious and not afraid to ask "Why" and "What if"?

Care about cycle time and use CI/CD practices, tools to rapidly deploy changes to customers while minimizing risk using practices like A/B tests, blue-green deployments, and feature toggles

Design and architect complex solutions on a platform dedicated to high scale processing of large amounts of data

Mentor and direct team members on technology and specific design; Own issues and provide end-to-end solutions

Collaborate with business and technology stakeholders to define and deliver our next generation ecosystem.

Partner with various teams to assist on moving towards a completely automated testing and deployment.

Continuously evaluate and prototype emerging technologies within developer & test community to understand business value and feasibility.

Help the organization into moving towards an engineering product model based team structure.

Digital mindset, and fluent across technology components including API Services development and consumption using modern frameworks and open source technologies.

Have strong communication skills and technical expertise to drive and participate in meaningful discussions.

The Skills You Bring

8+ years of hands on software development experience in Java Web services and API solutions.

Leadership & Strong execution skills in a fast-paced environment using agile methodologies.

Capability to support mission critical customer facing platforms and applications.

Strong experience designing and building scalable Service‑Oriented and Microservices Architectures, including RESTful APIs, JSON-based services, and modern application servers.

Proficient in Java, J2EE, Spring MVC, Spring Core, Node and JavaScript.

Deep expertise in API development, including API contract definition, versioning, isolation strategies, and service decomposition.

Strong understanding of distributed systems, performance optimization, and building highly scalable backend platforms using open‑source technologies.

Experience with cloud computing platforms, particularly AWS or Azure, including deployment, monitoring, and infrastructure services.

Proficient in API documentation frameworks such as OpenAPI / Swagger.

Strong DevOps experience, including CI/CD pipelines and tools such as Jenkins, Maven, GitHub, NPM, and automated build/deployment processes.

Solid knowledge of containerization and orchestration technologies, including Docker and Kubernetes.

Experience with backend testing frameworks, such as JUnit, Mockito, Spring Test, or equivalent backend testing tools.

Familiarity with backend frameworks, including, Micronaut, Spring Boot, ExpressJS (for Node.js), or similar server-side technologies.

Proficient in working with both relational and NoSQL databases, including schema design, optimization, and data modeling.

Experience working in Agile environments.

Excellent collaboration and communication skills, especially for partnering with global cross‑functional teams.

Demonstrated ability to mentor junior engineers and contribute to strong engineering culture and best practices.

The Value You Deliver

Personal Cards team in Fidelity Wealth (FW) supports applications and tools that provide capabilities like Debit and Credit card management for Fidelity's retail and workplace customers. This position will play a key role in delivering new and enhancing existing digital capabilities to provide the best customer experience.

How Your Work Impacts the Organization

We believe that diversity in background and experience will foster an inclusive and engaging work environment for our employees. This ultimately enables us to deliver a better product for our customers.

Being technically competent is only telling half the story. We believe that delivering the best possible customer experience requires an artful blend of human ingenuity and technology. While we value smart technologists, we are fanatics about our culture that promotes autonomy and leadership at all levels. People who are great cultural fits demonstrate curiosity to learn, are unafraid to break things, step up and take the lead, take ownership of their projects, and thrive by sharing knowledge.

Our culture code is simple

We share knowledge to empower and connect everyone

We live outside our comfort zone

We believe life is too short to not love what you do

We know amazing people create great opportunities

We are customers

We favor autonomy and take ownership

Educational & Experience

Bachelor's or equivalent degree with a Computer Science background.

8+ years of relevant experience

Fidelity's Onsite Working Model Fidelity is transitioning to a full-time onsite working model through a phased rollout across regions and roles. Currently, some roles and locations require 100% onsite presence, while others require less. Onsite expectations are likely to evolve as the rollout continues. This transition does not apply to fully remote roles.