> Markdown version of [/jobs/ext/2284257-principal-engineer-java-spring-boot-348k-yr-ts-sci-fs-poly](https://www.wearedevelopers.com/jobs/ext/2284257-principal-engineer-java-spring-boot-348k-yr-ts-sci-fs-poly). 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 Engineer (Java/Spring Boot) [$348k/yr+] TS/SCI-FS Poly - **Company:** SYSTOLIC, INC. - **Location:** Annapolis Junction, MD, United States - **Experience:** Expert - **Salary:** $348,000.0 - **Contract:** Temporary contract - **Skills:** Java (Programming Language), Systems Engineering, Software Quality, MongoDB, Object-Oriented Software Development, Software Systems, Spring-boot, Technical Debt, Solid Principles, Kubernetes, Restful APIs, Docker, Elk Stack - **Published:** August 28, 2026 - **Apply:** https://www.clearancejobs.com/jobs/9122733/principal-engineer-javaspring-boot-348kyr-tssci-fs-poly ## About the Role Candidates must already possess an active Top Secret/SCI w/ Full Scope Polygraph to be considered. We are looking for a Senior Java Engineer and Technical Anchor to architect new product features, decompose complex tasks for development teams, and write robust Spring Boot and MongoDB code utilizing strict SOLID principles., * Degree: Technical bachelor's degree or equivalent experience * Years of experience: 12+ years * Total Compensation: $348k+ yearly ## Description * Serve as a technical anchor and feature lead to architect, design, and implement new software capabilities. * Translate complex requirements into robust, documented technical designs using Object-Oriented principles. * Coordinate with integrated feature teams and systems engineering to ensure high-quality delivery across the full development lifecycle., * Lead architectural analysis and design documentation, ensuring seamless integration without technical debt. * Act as feature lead driving the definition of done from initial concept through development, testing, and deployment. * Deconstruct high-level feature designs into actionable tasks, track feature status, and mentor engineering team members. * Conduct comprehensive merge request reviews to maintain code quality, security protocols, and performance benchmarks. * Develop and maintain software leveraging Java, Spring Boot, REST APIs, MongoDB, Docker, Kubernetes, and the ELK stack. ## Related Videos - [Add Location-based Searching to Site with ElasticSearch](https://www.wearedevelopers.com/videos/77-add-location-based-searching-to-site-with-elasticsearch) - [40 Minutes to Build a Serverless COVID-19 REST and GraphQL APIs](https://www.wearedevelopers.com/videos/208-40-minutes-to-build-a-serverless-covid-19-rest-and-graphql-apis) - [Docker Compose: Rediscovered](https://www.wearedevelopers.com/videos/1978-docker-compose-rediscovered) - [Bootiful Spring Boot 3](https://www.wearedevelopers.com/videos/537-bootiful-spring-boot-3) - [NoSQL Data Modeling for Front-end Developers](https://www.wearedevelopers.com/videos/297-nosql-data-modeling-for-front-end-developers) - [Why Your Best Mediors Never Become Seniors (And How to Fix It)](https://www.wearedevelopers.com/videos/2108-why-your-best-mediors-never-become-seniors-and-how-to-fix-it) ## Related Articles - [How We Built a Worry-Free System That Runs for 10+ Years – And What We’d Do Again](https://www.wearedevelopers.com/magazine/751-how-we-built-a-worry-free-system-that-runs-for-10-years-and-what-we-d-do-again) - [Highest Paying Tech Companies for Developers](https://www.wearedevelopers.com/magazine/220-highest-paying-tech-companies-for-developers) - [Best Paying Jobs in Technology](https://www.wearedevelopers.com/magazine/256-best-paying-jobs-in-technology) - [How Much Does a Software Engineer Make? Realistic Software Engineering Salaries](https://www.wearedevelopers.com/magazine/425-how-much-does-a-software-engineer-make-realistic-software-engineering-salaries) - [Software Engineer Salary London](https://www.wearedevelopers.com/magazine/252-software-engineer-salary-london) - [Highest Paying Tech Companies in Europe](https://www.wearedevelopers.com/magazine/162-highest-paying-tech-companies-in-europe)