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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # System Engineer III (Linux/Windows) - **Company:** Prosync Technology Group, Llc - **Location:** Annapolis Junction, MD, United States - **Contract:** Permanent contract - **Skills:** Microsoft Windows, Active Directory, Systems Engineering, Configuration Management, Linux, Identity and Access Management, Networking Hardware, Lightweight Directory Access Protocols (LDAP), Linux System Administration, Network Service, Computer Networking Systems, Juniper, Containerization, Kubernetes, Cisco - **Published:** October 3, 2026 - **Apply:** https://www.clearancejobs.com/jobs/9214258/system-engineer-iii-linuxwindows ## About the Role * A Bachelor's degree in a Qualified Engineering Field or a related discipline from an accredited college or university plus six (6) years of experience in system engineering (OR) An Associate's Degree, a High School Diploma or GED plus ten (10) years of general system engineering experience (OR) A Master's degree in a Qualified Engineering Field or a related discipline from an accredited college or university plus four (4) years of systems engineering experience (OR) A PhD in a Qualified Engineering Field or a related discipline from an accredited college or university plus two (2) years of systems engineering experience. * Strong System Engineering and System Administration. * Strong knowledge of Security Compliance. * Strong knowledge of networking devices. (Cisco, Juniper, Arista). * System Administration skills for Windows/Linux. * Familiarity with Kubernetes/containerization. * Experience with Active Directory, LDAP, Centrify, Group Policy, Network Services. * Strong knowledge of security protocols and patching. * Communication and escalation of issues to management. * A Top Secret/SCI with Polygraph is required., * Individual growth is a priority at ProSync. Employees are encouraged to take advantage of our company-sponsored continuing education program so you can get your degree or that next certification you need to propel you to the next level. ## Description ProSync is seeking a System Engineer with strong experience in system administration, automation, security compliance, and enterprise infrastructure support. The engineer will work on a small, mission-focused team responsible for maintaining system integrity, performance, and security across critical client/server environments. This role requires hands-on administration of Windows and Linux systems, support for networking devices, and familiarity with containerization and Kubernetes. The ideal candidate is a strong communicator who can interact frequently with users and customers, escalate issues appropriately, and ensure systems remain secure, compliant, and operational., * System Engineering & Administration - Provide end-to-end system engineering and administration for Windows and Linux environments supporting mission-critical operations. * Security Compliance Management - Maintain strict security compliance across systems, including patching, protocol enforcement, configuration validation, and audit readiness. * Automation & Management - Develop or support automation workflows to streamline system administration, configuration management, and compliance tasks. * Networking Device Support - Work with Cisco, Juniper, and Arista devices to ensure reliable connectivity, proper configuration, and secure operation. * Containerization & Kubernetes - Support containerized environments and Kubernetes-based deployments as part of modernization and operational workflows. * Directory & Identity Services - Administer and troubleshoot Active Directory, LDAP, Centrify, Group Policy, and related identity and access management services. * Security Protocols & Patching - Ensure systems adhere to required security protocols, perform regular patching, and maintain secure configurations. * User & Customer Interaction - Work closely with users and customers to resolve issues, gather requirements, and support mission operations. * Issue Escalation - Communicate and escalate technical issues to management in a timely and effective manner. ## Related Videos - [How Cisco embraced a DevOps culture within its network engineering team](https://www.wearedevelopers.com/videos/99-how-cisco-embraced-a-devops-culture-within-its-network-engineering-team) - [Docker network without Docker](https://www.wearedevelopers.com/videos/1418-docker-network-without-docker) - [Security Pitfalls for Software Engineers](https://www.wearedevelopers.com/videos/726-security-pitfalls-for-software-engineers) - [Discover the open source trio you didn’t expect: .NET and PostgreSQL on Linux](https://www.wearedevelopers.com/videos/2042-discover-the-open-source-trio-you-didn-t-expect-net-and-postgresql-on-linux) - [Computer Vision from the Edge to the Cloud done easy](https://www.wearedevelopers.com/videos/263-computer-vision-from-the-edge-to-the-cloud-done-easy) - [Docker exec without Docker](https://www.wearedevelopers.com/videos/1094-docker-exec-without-docker) ## 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) - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated) - [What is Software Engineering?](https://www.wearedevelopers.com/magazine/289-what-is-software-engineering) - [Software Engineer Career: Things You Should Know](https://www.wearedevelopers.com/magazine/143-software-engineer-career-things-you-should-know) - [Top-Paying Tech Jobs (with Salaries)](https://www.wearedevelopers.com/magazine/372-top-paying-tech-jobs-with-salaries) - [Where to Find Entry-Level Software Engineering Jobs](https://www.wearedevelopers.com/magazine/397-where-to-find-entry-level-software-engineering-jobs)