> Markdown version of [/jobs/ext/4662792-senior-java-software-engineer](https://www.wearedevelopers.com/jobs/ext/4662792-senior-java-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). --- # Senior Java Software Engineer - **Company:** Synergy Ecp Llc - **Location:** Columbia, MD, United States - **Experience:** Expert - **Salary:** $160,000 - $250,000 - **Contract:** Permanent contract - **Skills:** Java (Programming Language), Apache Accumulo, Data Analysis, Systems Engineering, Big Data, Information Systems, Dependency Injection, Linux, Distributed Systems, Gradle, Apache Hadoop, Hadoop Distributed File System, MapReduce, Internet Security, Spring Framework, Apache Maven, NoSQL, Software Engineering, Apache Zookeeper, Multithreading, Software Application Programming, Git, Information Technology - **Published:** November 10, 2026 - **Apply:** https://www.careerbuilder.com/job-details/senior-java-software-engineer-columbia-md--82923783-0188-465d-9854-f0650e5aefb9 ## About the Role Software Engineering, Java, Internet Security, ECP Standards, Systems Engineering, Software Engineering, Defense Intelligence, Information Technology & Information Systems, Performance Management, Government, * Strong experience with enterprise/server-side Java development * Experience with the Spring Framework and Dependency Injection * Experience developing applications in high-performance, multi-threaded, distributed computing environments * Strong proficiency working in Linux-based development environments * Experience using: + Git + Maven + Gradle, * Experience developing analytics using: + Apache Hadoop + HDFS + MapReduce * Experience designing and developing applications with: + Apache Accumulo + Similar NoSQL databases * Experience processing: + Large datasets + High-volume data ingest pipelines * Experience monitoring, maintaining, and troubleshooting: + Apache Accumulo + Apache Hadoop + Apache Zookeeper deployments Experience Required: 8+ years with a technical degree 12+ years without a technical degree CLEARANCE REQUIRED: TS/SCI w/ Polygraph