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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior Full Stack Engineer - **Company:** Fmr LLC - **Location:** Merrimack, NH, United States - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Java (Programming Language), Amazon Web Services, Amazon Elastic Compute Cloud, Amazon S3, Automation of Tests, Cloud Computing, Databases, Continuous Delivery, Continuous Integration, PostgreSQL, Oracle (Applications), Web Application Frameworks, Enterprise Software Applications, Apache Camel, ReactJS, Spring-boot, AngularJS, Information Technology, Cassandra, Restful APIs, Microservices - **Published:** June 8, 2026 - **Apply:** https://www.careerboard.com/us/en/find-jobs-in-United-States/-5C14612975A9785A0F/ ## About the Role The position requires a strong background in full stack application development, testing, deployment, and familiarity with cloud computing. You will have the opportunity to build applications using Java, Spring Boot, REST APIs, Angular/React, Apache Camel (nice to have), Cassandra, YugabyteDB, Oracle/RDS, AWS and GO. You must be a self-starter who is passionate about the technology you are building and eager to produce world-class services. You should enjoy working with a variety of technologies in a team environment where your success depends heavily on the success of your team and organization. You should have an appetite for learning new technologies and enjoy coaching junior team members. This is a very interesting position with exposure to core Fidelity financial business applications, comprised of both custom and 3rd-party products. The Expertise and Skills You Bring * 5-7+ years developing enterprise applications in Java * 4+ years building microservices using Spring Boot * Strong Full Stack experience, including: + Modern Front End frameworks (React, Angular, or similar) + REST API design and implementation * 1-3+ years of experience working with AWS EC2, EKS, S3, Lambda, RDS * Experience using GO * Experience with databases such as Oracle, Cassandra, PostgreSQL, YugabyteDB * Experience with Continuous Integration and Continuous Delivery * Experience with automated testing(unit, functional, and/or performance) * Bachelor's and/or Master's degree in Computer Science or a related discipline * Delivery-focused with strong end-to-end ownership * Ability to work well with others and collaborate across teams * Strong commitment to high engineering standards and continuous improvement * Strong troubleshooting skills that span applications, systems, and networks As a member of the FFIO Market Data Engineering team, you will be working on modern market data applications and operating them on public cloud platforms. You will help millions of Fidelity customers make financial decisions based on the quality of data delivered through these applications. ## Related Videos - [Next Level Enterprise Architecture: Modular, Flexible, Scalable, Multichannel and AI-Ready?](https://www.wearedevelopers.com/videos/1017-next-level-enterprise-architecture-modular-flexible-scalable-multichannel-and-ai-ready) - [Kubernetes and Microservices with Multi-Model Databases](https://www.wearedevelopers.com/videos/382-kubernetes-and-microservices-with-multi-model-databases) - [Watch Tests Go Brrrr! : Getting Started with Cypress in ReactJS](https://www.wearedevelopers.com/videos/282-watch-tests-go-brrrr-getting-started-with-cypress-in-reactjs) - [WeAreDevelopers LIVE - CSS is DOOMed](https://www.wearedevelopers.com/videos/1838-wearedevelopers-live-css-is-doomed) - [Enterprise-Cloud-Native - Fast-Paced Development & Deployment in a Highly Secure Banking Environment](https://www.wearedevelopers.com/videos/671-enterprise-cloud-native-fast-paced-development-deployment-in-a-highly-secure-banking-environment) - [Fault Tolerance and Consistency at Scale: Harnessing the Power of Distributed SQL Databases](https://www.wearedevelopers.com/videos/1146-fault-tolerance-and-consistency-at-scale-harnessing-the-power-of-distributed-sql-databases) ## Related Articles - [How Much FAANG Companies Actually Pay Software Engineers in 2025](https://www.wearedevelopers.com/magazine/230-how-much-faang-companies-actually-pay-software-engineers-in-2025) - [Highest Paying Tech Companies for Developers](https://www.wearedevelopers.com/magazine/220-highest-paying-tech-companies-for-developers) - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated) - [Fullstack Developer Salary UK](https://www.wearedevelopers.com/magazine/251-fullstack-developer-salary-uk) - [7 Most Popular Web Developer Jobs in Europe](https://www.wearedevelopers.com/magazine/163-7-most-popular-web-developer-jobs-in-europe) - [What’s the Difference Between Frontend and Backend Development?](https://www.wearedevelopers.com/magazine/240-what-s-the-difference-between-frontend-and-backend-development)