> Markdown version of [/jobs/ext/4623431-senior-software-engineer-iii-ts-sci-large-scale-systems](https://www.wearedevelopers.com/jobs/ext/4623431-senior-software-engineer-iii-ts-sci-large-scale-systems). 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 Software Engineer III (TS/SCI) - Large-Scale Systems - **Company:** Arsiem Corporation - **Location:** United States - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Java (Programming Language), Amazon Web Services, MongoDB, Software Requirements Analysis, Spring-boot, Apache Kafka - **Published:** November 7, 2026 - **Apply:** https://www.juju.com/job/28_25197_9ea358eaba62e2a7b5d41d6dc224ccd1 ## About the Role Required: 12 years SWE experience in similar programs, a Bachelor's degree in CS or related field, and familiarity with Java, Springboot, Mongo, Kafka, and AWS/ECR. ## Description ARSIEM Corporation is seeking a Software Engineer 3 to develop, test, and enhance complex software systems for a government client in Annapolis Junction, MD. You will work independently and with teams, applying modern design methods and evaluating COTS/GOTS options to meet system requirements.