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NetOpsLinux Administrator

Sentar


Job Location:

Pearl, HI - USA

Monthly Salary: Not provided by the employer
Posted: 29 September 2026 (3 days ago)
Application Deadline: 27 December 2026
Vacancies: 1 Vacancy

Job Summary

Sentar is seeking a NetOps/Linux Administrator in Pearl City Hawaii!

Role Description:

The Network Operations/Linux Administrator is responsible for managing and maintaining both cloud and on-premises networking environments. This includes overseeing virtual private networks (VPNs) cloud-based networks and virtual network appliances as well as on-premises network infrastructure and hardware. The role ensures the performance availability and security of network infrastructure and subscriber connections. The administrator applies strong communication analytical and problem-solving skills to identify communicate and resolve network issues maximizing the benefit of IT systems investments.

Key Responsibilities:

Install configure and maintain Linux servers and their components to ensure optimal performance security and availability.
Conduct regular system monitoring to verify the integrity and availability of all hardware server resources systems and key processes.
Administer Linux-based services including Apache NGINX MySQL and PostgreSQL. Implement and oversee backup and recovery solutions.
Regularly apply OS patches/upgrades and update administrative tools and utilities.
Manage accounts and network rights.
Manage and monitor cloud networking solutions such as AWS VPC and Azure VNet.
Configure sustain and troubleshoot on-premises networking hardware including routers switches firewalls and load balancers.
Set up oversee and maintain VPNs for secure remote access.
Monitor network performance and optimize for high availability and reliability.
Implement and oversee network security measures including firewalls IDS/IPS and network access controls.
Perform network performance tuning capacity planning and scalability assessments.
Execute network hardware and software upgrades and patches.
Maintain up-to-date network documentation including diagrams configuration guides and troubleshooting procedures.
Collaborate with IT teams to integrate and enhance network resources for applications and services.
Oversee network-related projects from planning through implementation and documentation.
Research emerging network technologies trends and best practices.
Work independently and collaboratively in a team-oriented environment.
Be available for on-call after-hours rotational support as necessary.

Qualifications:

Clearance Level: Secret with eligibility for upgrade to Top Secret (TS)

Education: Hold a Bachelors degree in Computer Science Information Technology or a related field or possess equivalent work experience.

Certifications: Candidate must meet DoD 8140 (Formerly 8570) baseline certification at the time of hire. The following are commonly accepted: Security CISM or CISSP. Certifications such as Red Hat Certified System Administrator (RHCSA) Red Hat Certified Engineer (RHCE) or CompTIA Linux

Experience:

Maintain a minimum of 3-5 years of experience in network engineering.
Proficiency in Linux operating systems specifically with Red Hat
Experience with Linux server administration 1-2 years experience.
Proficiency in cloud networking solutions (e.g. AWS VPC Azure VNet)
Experience with on-premises networking hardware (e.g. Cisco Palo Alto)
Knowledge of networking protocols and services (TCP/IP DNS DHCP VPN)
Experience with network monitoring tools (e.g. SolarWinds Nagios)
Strong understanding of network security principles and practices
Experience with Elasticsearch Enterprise and Kibana dashboards
Excellent troubleshooting problem-solving and documentation skills
Strong verbal and written communication skills

Benefits at Sentar:

Our unique ownership model attracts top talent giving employees the freedom to take initiative and drive meaningful addition to cultivating a thriving and inclusive work environment Sentar offers an extensive benefits package designed to support the well-being of employees and their families. Employee ownership is the foundation of our culture promoting participation teamwork and accountability while ensuring long-term financial security and a commitment to excellence.

  • Voluntary Medical Dental Vision with Health Savings or Flexible Spending Plan options
  • Voluntary Life Critical Illness Accident and Long Term Care insurance options
  • Group Term Life Short-Term and Long-Term Disability is provided by Sentar to all qualifying employees
  • Generous 401(k) match
  • Competitive PTO plan that graduates quickly with years of service
  • Other leave programs; holiday schedule along with bereavement maternity jury and military duty
  • Mental health awareness programs
  • Tuition reimbursement
  • Professional development reimbursement
  • Recognition and Awards programs

If you are not ready to apply for this position submit your resume here to join our talent community. Well keep you updated occasionally on new job opportunities.

Sentar is an Affirmative Action and Equal Opportunity Employer M/F/Vets/Persons with Disabilities

Our culture is one of inclusivity and support. Sentar is proudly an Equal Opportunity and VEVRAA Federal Contractor Employer M/F/Vets/Persons with Disabilities. Follow these links to learn more about your rights: EEO Is the Law Poster; EEO Is Law Supplement; and Pay Transparency.

We want you to build your career at Sentar so if you are an individual with a disability and require a reasonable workplace accommodation applying for a job or at any point in the employment process contact the Recruiting Manager at . Please indicate the specifics of the assistance needed. Thank you for considering Sentar in your employment search.

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Required Experience:

Unclear Seniority


About Company

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Secure solutions for the converged cyber domain CYBERSECURITY TECHNOLOGY EXPERTS Sentar is a cyber intelligence company, applying advanced analytics and systems engineering expertise to protect our national security and way of life by innovating, building, and securing mission-critica ... View more

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