> Markdown version of [/jobs/ext/516836-principal-full-stack-engineer](https://www.wearedevelopers.com/jobs/ext/516836-principal-full-stack-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 Full Stack Engineer - **Company:** Fmr LLC - **Location:** Boston, MA, United States - **Experience:** Experienced - **Salary:** $107,000.0 - $216,000.0 - **Contract:** Permanent contract - **Skills:** HTML, JavaScript (Programming Language), Artificial Intelligence, Amazon Web Services, Cascading Style Sheets (CSS), Databases, DevOps, Python (Programming Language), Modular Design, Software Engineering, Systems Integration, Containerization, AngularJS, Information Technology, Restful APIs - **Published:** June 13, 2026 - **Apply:** https://www.indeed.com/viewjob?jk=3015816c73bab6b5 ## About the Role Do you have experience in Team leadership?, * A Bachelor's or Master's degree in computer science, Engineering, or a related field * 6 - 10 years of professional software engineering experience, with a proven track record of delivering complex applications. * 3 - 5 years of technical leadership experience * Deep full-stack expertise in Python, EKS, HTML, CSS, javascript, Angular, AWS, and databases systems. * Strong understanding of modular architecture, component sharing, and scalable design principles. * Experience building and integrating RESTful APIs and working with cloud-native technologies. * High degree of autonomy and ownership; able to drive projects forward with minimal oversight. * Excellent communication and collaboration skills, with the ability to influence and align stakeholders. Bonus Points: * Prior experience developing Gen AI applications * Prior work in a startup or incubator environment, building products from the ground up. ## Description Are you interested in joining a dynamic, innovation focused, high impact team? Do you enjoy building new products and services in a collaborative, fast paced environment? Join Fidelity Labs, our in-house new business incubator, as one of the founding Principal Full Stack Engineers for an early-stage GenAI startup for investment research. In this role, you will be responsible for working across the development and product teams to build and scale a modern. As a Principal Full Stack Engineer, you will play a pivotal role in building new application experiences and business capabilities to support a new business initiative. You will work closely with the Director of Engineering and cross-functional teams, driving technical decisions and ensuring the delivery of scalable, maintainable solutions., * Lead the design and development of modular, reusable front-end components in Angular, enabling sharing across multiple product teams. * Architect and implement robust back-end services using Python, EKS, and AWS, with a focus on scalable, secure, and maintainable solutions. * Champion best practices in modular application design, including micro-frontends, shared libraries, and integration patterns. * Collaborate with product, UX, and engineering teams to translate business requirements into technical solutions. * Drive the adoption of modern CI/CD pipelines and DevOps practices for rapid, reliable delivery. * Mentor and guide other engineers, fostering a culture of technical excellence and continuous improvement. ## Related Videos - [The Resilience of the World Wide Web](https://www.wearedevelopers.com/videos/1281-the-resilience-of-the-world-wide-web) - [From DevOps to Scaled DevOps: How We’re Rebuilding Continuous Delivery as a Platform](https://www.wearedevelopers.com/videos/100018-from-devops-to-scaled-devops-how-we-re-rebuilding-continuous-delivery-as-a-platform) - [Kubernetes and Microservices with Multi-Model Databases](https://www.wearedevelopers.com/videos/382-kubernetes-and-microservices-with-multi-model-databases) - [Shipping Faster with Less: Render on Cloud Hosting, AI Workloads, and the Future of DevOps](https://www.wearedevelopers.com/videos/1894-shipping-faster-with-less-render-on-cloud-hosting-ai-workloads-and-the-future-of-devops) - [NoLoJS - Avoiding JavaScript Cruft with HTML and CSS - Aaron T. Grogg](https://www.wearedevelopers.com/videos/1806-nolojs-avoiding-javascript-cruft-with-html-and-css-aaron-t-grogg) - [Robots are coming into the wild! Full-Stack Robotics Engineers, be ready!](https://www.wearedevelopers.com/videos/479-robots-are-coming-into-the-wild-full-stack-robotics-engineers-be-ready) ## Related Articles - [Highest Paying Tech Companies for Developers](https://www.wearedevelopers.com/magazine/220-highest-paying-tech-companies-for-developers) - [Dev Digest 121 - AI goes offline](https://www.wearedevelopers.com/magazine/456-dev-digest-121-ai-goes-offline) - [Dev Digest 120 - Apple and peers](https://www.wearedevelopers.com/magazine/455-dev-digest-120-apple-and-peers) - [Navigating the AI Shift](https://www.wearedevelopers.com/magazine/629-navigating-the-ai-shift) - [How to Become an AI Engineer](https://www.wearedevelopers.com/magazine/331-how-to-become-an-ai-engineer) - [Dev Digest 132 - Binging WADFlix?](https://www.wearedevelopers.com/magazine/473-dev-digest-132-binging-wadflix)