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Principal Systems Engineer II; Unix​/Linux

Job in Pocatello, Bannock County, Idaho, 83204, USA
Listing for: ECS
Full Time position
Listed on 2026-01-12
Job specializations:
  • IT/Tech
    Systems Engineer, Cybersecurity
Salary/Wage Range or Industry Benchmark: 80000 - 100000 USD Yearly USD 80000.00 100000.00 YEAR
Job Description & How to Apply Below
Position: Principal Systems Engineer II (Unix/Linux)

Principal Systems Engineer II (Unix/Linux)

ECS is seeking a Principal Systems Engineer II (Unix/Linux) to work in our Pocatello, e.

Job Description

The Contractor shall be responsible for the design, deployment, testing, certification, patching, addressing interoperability issues, not only of the base operating system, but for all support libraries, components, and application dependencies.

Responsibilities
  • Serve as the advanced knowledge expert for all Linux environments.
  • Create and maintain bare-metal and virtual machines with the appropriate distribution of Linux and network configuration, using tools that include Satellite Server, Ansible and Big Fix.
  • Provision/configure the required software onto servers, such as web servers and databases.
  • Evaluate, improve, and maintain the information security throughout the Linux infrastructure.
  • Monitor and correct server issues and process for failures and performance bottlenecks.
  • Manage and monitor all installed systems and infrastructure.
  • Possess excellent knowledge base in DNS, DHCP, LDAP, SMTP, and integration with Windows to solve technical and functional issues.
  • Install, configure, test, and maintain operating systems, application software and system management tools.
  • Proactively ensure the highest levels of systems and infrastructure availability.
  • Monitor and test application performance for potential bottlenecks, identify possible solutions, and work with developers to implement those fixes.
  • Maintain security, backup, and redundancy strategies.
  • Write and maintain custom scripts to increase system efficiency and lower the human intervention time on any tasks.
  • Participate in the design of information and operational support systems.
  • Provide 4th level support.
  • Build new baselines with the appropriate security and access controls to include DISA STIGS and required security controls. Updated baselines will be required quarterly and new versions within 90 days of the manufacturer’s release to production and full DISA STIGS.
  • Engineer multi factor authentication between Linux environments and the enterprise Windows infrastructure components.
  • Engineer solutions for baselines to operate in full standalone mode, domain mode, and fully integrated mode for all classification levels and enclaves.
  • Work with the developers to transition applications from one platform to another to include from physical to virtual and virtual to cloud.
  • Work with security components to resolve any security findings or vulnerabilities and apply fixes or updates as well as solutions to achieve closure.
  • Liaise with vendors and other IT personnel for problem resolution.
  • Ensure technical documentation exists for all systems and is kept up to date to include inventory and patch levels of all systems to include hostnames, property numbers, IP addresses, enclave, number of cores, number of processors, admin passwords, certificates, and service accounts on a monthly interval.
  • Integrate systems with Windows as it applies to authentication and core services dependencies such as single sign‑on and Active Directory. Engineer and implement solutions for multi factor authentication with FBI standardized software and hardware.
  • Document system configurations to include passwords, access controls, version number, and revision numbers, patch levels, and inventory to include hostnames, TCP/IP addresses, number of processors, and number of cores, memory, and license keys.
  • Continually transition knowledge to the Government staff through training and assistance on how to use the technology using industry best practices.
Required Skills
  • Must have a current Top‑Secret Clearance with the capability of obtaining SCI / CI‑Poly if needed to meet contract requirements.
  • Minimum of Red Hat Certified Systems Administrator (RHCSA) or higher certification.
  • 8+ years of experience required.
  • Systems Engineer skill set with focus on Unix/Linux based systems such as Red Hat Linux and Oracle Linux.
Desired Skills
  • Bachelor’s degree is preferred.

ECS is an equal opportunity employer and does not discriminate or allow discrimination on the basis any characteristic protected by law. All qualified applicants will receive consideration for employment without regard to disability, status as a protected veteran or any other status protected by applicable federal, state, or local jurisdiction law.

ECS is a leading mid‑sized provider of technology services to the United States Federal Government. We are focused on people, values and purpose. Every day, our 3300+ employees focus on providing their technical talent to support the Federal Agencies and Departments of the U.S. Government to serve, protect and defend the American People.

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