> Markdown version of [/jobs/ext/3581104-principal-software-engineer](https://www.wearedevelopers.com/jobs/ext/3581104-principal-software-engineer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Principal Software Engineer - **Company:** FIDELITY LLC - **Location:** Boston, United States (Remote available) - **Experience:** Expert - **Salary:** $107,000.0 - $216,000.0 - **Contract:** Permanent contract - **Skills:** Application Programming Interfaces (APIs), Amazon Web Services, Automation of Tests, Databases, Continuous Integration, Digital Assets, Junit, PostgreSQL, Swagger, Software Deployment, Software Engineering, Software Organization, Spring-boot, Backend, Git, Containerization, Integration Tests, Deployment Automation, Api Design, Restful APIs, Amazon Simple Queue Service (SQS), Software Version Control, Docker, Jenkins, Microservices - **Published:** October 4, 2026 - **Apply:** https://startup.jobs/principal-software-engineer-fidelity-technology-group-ll-2-10272449 ## About the Role * Expert in core Java technologies and frameworks like Spring Boot * Proficient in databases and SQL * Understanding of AWS or other cloud platforms and containerization technologies such as ECS and Docker * Experience working with version control systems like GIT. * Experience with asynchronous workers and resilient messaging services such as SNS and SQS * An understanding of microservice architectures and twelve factor app patterns * Ability to build reliable software that can withstand unreliable environments * Unit and integration test automation using Junit and spring boot test framework * Experience building and deploying applications using continuous integration pipelines and automated deployment tools such as Jenkins. The Skills You Bring * A solid and strong foundation in software engineering - bachelor's degree preferred or equivalent industry experience (8+ years' experience) * Possess critical thinking skills to build end-to-end solutions * Experience with API design using Swagger Hub to Build, Collaborate and Integrate APIs * Able to clearly articulate API strategies to all partners * Passionate and committed to learning new things and developing with the latest technologies and frameworks * Work well in both a small agile team and independently, having a strong user focus * Strong analytical, communication, and organizational skills and the ability to handle multiple tasks at a given time * Participate in engineering practices such as code and design reviews, environment strategy, and build and deployment pipeline. ## Description As a Principal Software Engineer, you will be an integral part of the Settlement Services team. You'll get the opportunity to develop your skills, collaborate across Fidelity teams and continue to learn in a fun, collaborative, iterative, and rapidly changing environment. This is a hands-on role where you will write code for product features. You will work closely with the squad and architect to build secure, scalable, resilient cloud-based microservices utilizing modern software development practices. You will help design and implement REST API clients and services, exchange asynchronous messages between services, and use Postgres to manage data. You will also write automated unit and integration tests, package software using containers, coordinate builds using continuous integration pipelines and prepare your services for deployment on AWS. The Team The Institutional API Team is responsible for the backend services and APIs that support transfer of digital assets and wires. Additionally, they create and maintain services to get account positions, transaction activity and other account management related use cases.