Senior Systems Engineer Security Clearance

Position: Senior Systems Engineer with Security Clearance
Company Overview For over 25 years, Edgesource Corporation has served as an innovative technology service provider for the Department of Defense (DOD), Department of Homeland Security (DHS), Department of State (DOS), the U.S. Intelligence Community, Law Enforcement, and other federal, state, and commercial clients locally, nationally, and abroad. From providing boutique technical solutions in support of the DOD Counter Unmanned Aerial Systems (CUAS) mission set to addressing the most critical Cybersecurity threats facing our nation as a prime contractor with the DHS Cybersecurity & Infrastructure Security Agency (CISA), a career at Edgesource is an opportunity to do meaningful, interesting, and impactful work.

Position Overview We are seeking a Systems Engineer to support the design, deployment, administration, security, and sustainment of Linux-based infrastructure supporting DoD development, integration, test, and mission environments. This position supports a combination of physical servers, virtual machines, containerized applications, development platforms, networking, storage, and mission applications. The ideal candidate is a hands-on engineer with strong Linux fundamentals who is comfortable working across infrastructure, networking, virtualization, containers, and application support.

The engineer will work closely with software developers, network engineers, cybersecurity teams, and mission partners to deploy new capabilities, troubleshoot complex problems, and maintain reliable and secure computing environments.

Job Duties
* Install, configure, administer, patch, upgrade, and troubleshoot Linux servers and workstations.

* Support enterprise Linux distributions including RHEL, Rocky Linux, Ubuntu, Debian, or similar platforms.

* Manage users, permissions, services, packages, repositories, file systems, storage, SSH, certificates, and system resources.

* Monitor system health, capacity, availability, and performance.

* Diagnose hardware, operating system, storage, network, and application-level issues. Virtualization & Containers
* Deploy and manage Linux virtual machines within KVM, Proxmox, VMware, or similar virtualization environments.

* Configure virtual networking, storage, templates, snapshots, and system resources.

* Deploy and support containerized applications using Docker, Podman, Docker Compose, or similar technologies.

* Support Kubernetes, K3s, or other container orchestration platforms as required.

* Assist development teams with application deployment, runtime configuration, and troubleshooting.
Networking & Integration
* Configure and troubleshoot TCP/IP networking, routing, DNS, VLANs, firewalls, proxies, and application connectivity.

* Troubleshoot HTTP/HTTPS, REST APIs, Web Sockets, SSH/SFTP, and other application protocols.

* Support reverse proxies, application proxies, and controlled ingress/egress architectures.

* Work with development and network teams to establish connectivity between applications, services, and external systems.

* Support rapid integration of new applications and technologies into development, test, and operational environments.
Dev Sec Ops  & Automation
* Support Git-based development environments and CI/CD platforms such as Git Lab, Git Hub, or Bitbucket.

* Develop scripts and automation using Bash, Python, Ansible, or similar technologies.

* Automate common system administration, deployment, configuration, monitoring, and maintenance activities.

* Support Infrastructure-as-Code and configuration-as-code practices.

* Assist engineering teams with application builds, deployments, dependencies, and infrastructure requirements.
Security & Operations
* Implement system hardening, patching, vulnerability remediation, and configuration-management requirements.

* Support DISA STIG implementation and applicable DoD cybersecurity controls.

* Assist cybersecurity teams with RMF activities and technical evidence collection.

* Configure and maintain logging, monitoring, backups, auditing, and system health capabilities.

* Maintain accurate system configurations, diagrams, procedures, and technical documentation.

* Support integration events, system demonstrations,…