> Markdown version of [/jobs/ext/3836225-senior-full-stack-engineer-backend-focus-in-rockville](https://www.wearedevelopers.com/jobs/ext/3836225-senior-full-stack-engineer-backend-focus-in-rockville). 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). --- # Senior Full Stack Engineer -- Backend Focus in Rockville - **Company:** Energy Jobline - **Location:** Tysons, VA, United States - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Java (Programming Language), Application Programming Interfaces (APIs), Artificial Intelligence, Amazon Web Services, Amazon Elastic Compute Cloud, Amazon S3, Automation of Tests, Unit Testing, Continuous Integration, Database Queries, Apache Hive, Python (Programming Language), PostgreSQL, MongoDB, Query Optimization, Cloud Services, Software Engineering, Performance Testing, ReactJS, Database Optimization, Spring-boot, Generative AI, Backend, AngularJS, Gitlab-ci, Infrastructure Automation Frameworks, AWS Fargate, Api Design, Docker - **Published:** October 19, 2026 - **Apply:** https://www.energyjobline.com/job/senior-full-stack-engineer-backend-focus-rockville-31997553 ## About the Role We're looking for an experienced Senior Full Stack Engineer who enjoys solving complex problems and taking ownership from investigation through resolution. This is a backend-focused role building and improving production applications, APIs, and cloud services., * 10+ years of professional software engineering experience, including full stack development. \n * Strong hands-on experience with Java, Spring Boot, and API development. \n * A backend-first engineering background and the ability to work across the full stack. \n * Experience with Angular and/or React. \n * Experience with AWS, especially Lambda and RDS. \n * Strong SQL skills, including query optimization and database performance tuning. \n * Hands-on experience with performance testing, test automation, and unit testing. \n * A problem-solving mindset: able to diagnose issues, make sound tradeoffs, and balance immediate fixes with long-term solutions. \n * The ability to understand, evaluate, and improve code produced with AI-assisted tools. \n * Strong communication skills and a track record of taking work through to completion. \n, * Experience with PostgreSQL, MongoDB, Python, or Spark SQL. \n * Experience with CI/CD, Docker, infrastructure as code, or GitLab CI/CD. \n * Familiarity with AWS services such as EC2, ECS, Fargate, S3, or EMR. \n * AWS certification, such as Solutions Architect or Developer Associate. \n * Experience using generative AI tools across software development workflows. \n