Sr Systems Administrator Level 3 - Poly clearance Required

Praxis Engineering Technologies; Maryland; On-site; USD 144,000 - 272,000; Full time

Job summary

A leading company is seeking a Senior System Administrator to manage critical IT systems for national defense. The role involves maintaining operational environments, automated deployments, and ensuring compliance with security standards. Ideal candidates will have extensive experience in system administration, strong communication skills, and familiarity with various tools and technologies. An active TS/SCI clearance is required.

Qualifications

• 20 years experience as a System Administrator in similar programs.
• Proficiency in Linux commands and virtualized/containerized hosting.

Responsibilities

• Maintain critical IT systems and manage operational aspects of development environments.
• Automated deployment and configuration management.

Skills

Linux

Communication

Planning

Education

Bachelor's degree in Computer Science

Tools

Gitlab

VMware

Ansible

Active Directory

Nessus

Microsoft Office

Job description

System Administrator

We have an immediate need for a System Administrator to maintain critical IT systems and orchestrate novel and efficient baseline configuration management. Typical duties include health and status monitoring of hardware and software components, automated deployments of baselines, patches, services, and configuration, defect and problem resolution, stakeholder communication, and scheduling system events for inventory of client/server/storage/network/mobile/support devices.

What you will be doing:

The Senior System Administrator is responsible for all operational aspects of the development & test environment(s) contributing to our national defense. He/she will manage all aspects of the IT system(s) including accounts, baselines, compliance, availability, and performance.

Specific tasks include proficiency in Linux commands and navigation, virtualized/containerized hosting designs and implementations (e.g., VMware/ESXi, Docker), automated deployment, baseline configuration tools such as Ansible, Windows/Active Directory, stakeholder presentations, interfacing with ISSO and security policy teams, and executing request/service trouble-ticket systems.

Experience with CI/CD using Gitlab and proficiency with Atlassian Suite (Confluence, JIRA, etc.) is a plus.

What you need:

• Twenty (20) years’ experience as a SA in programs of similar scope, type, and complexity. Bachelor’s degree in Computer Science or related discipline; four (4) years of additional SWE experience may substitute for a degree.
• Excellent planning and communication skills, with ability to interact professionally with developers, stakeholders, and leadership.
• Familiarity with System Security Assessment processes.
• Tools expertise: Gitlab, VMWare, Linux (RHEL, Rocky, Ubuntu), Ansible, Active Directory, Nessus.
• Knowledge of network security architecture, topology, protocols, and components.
• Familiarity with BISCOTTI, XACTA, and Latte-Arte requirements.
• Security design and review experience.
• Proficiency with Microsoft Office products (Word, PowerPoint, Excel, SharePoint).
• Ability to identify, gather, and report key performance and compliance metrics.
• Knowledge of disaster recovery and continuity of operations plans.
• Understanding of enterprise incident response roles and responsibilities.
• IAT II compliance (Security+, etc.).

Clearance: Active TS/SCI with current polygraph required; ability to receive privileged access rights.

Salary range: $144,251.00 - $271,085.00 (Annual)

Req ID: PRX 25-621