Senior Linux & Network Engineer - On-Site Infra Lead

Digital Cloak

Boswell's Corner (VA)

On-site

USD 110,000 - 160,000

Full time

14 days+

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Job summary

Digital Cloak is seeking a highly skilled Linux and Network Engineer to operate as a matrixed resource managing and secure the enterprise digital infrastructure. The role requires directing multiple workstreams and prioritizing tasks based on business needs and strategic initiatives.

The ideal candidate will lead or contribute to cross-functional efforts and engage with clients or stakeholders as needed. Responsibilities include owning the full internal environment, patching, uptime maintenance,

Qualifications

Expert-level Linux system administration with full terminal fluency.
Strong Bash and Python skills to design and build tools.
Hands-on networking with pfSense, OPNsense, Cisco, Aruba.
Experience with Proxmox VE, Ceph, and container orchestration.

Responsibilities

Own the full internal environment: Linux servers, enterprise applications, network infrastructure, and end-user computing.
Perform patching, maintenance, and lifecycle management across systems and network devices.
Maintain environment uptime and availability; respond to rare after-hours issues when systems are impacted.
Configure and manage routers, firewalls, switches, and wireless across pfSense, OPNsense, Cisco, and Aruba platforms.
Build, operate, and optimize the Proxmox virtualization environment, including VM provisioning, software-defined networking, and Ceph storage.
Deploy, maintain, and troubleshoot containerized services and workloads on Docker-based infrastructure.
Diagnose complex, multi-layer issues end-to-end, tracing problems to root cause and communicate resolutions clearly.
Design and write automation tooling in Bash and Python for provisioning, monitoring, and maintenance.
Support enterprise workflows and corporate applications, ensuring reliability and a smooth end-user experience.