Back to jobs

Senior Systems Administrator (Onsite)

Who we are

CTI is a leading software, systems, and operational support corporation, specializing in providing user-focused technologies for military and other security applications. We are dedicated to engineering solutions on open, government-owned platforms to ensure the right capabilities are employed on the battlefield.

We are looking for a Senior System Administrator to join our IT department. You’ll be responsible for managing our server and network infrastructures. Senior System Administrator responsibilities include supervising our Operations team, monitoring system performance and configuring new software and hardware. To be successful in this role, you should have excellent troubleshooting skills and hands-on experience with various operating systems. Ultimately, you will ensure our software, hardware, servers and networks run smoothly.

Responsibilities include, but are not limited to:

  • Responsible for asset procurement and installation/configuration, operation and maintenance of systems hardware, software and related infrastructure.
  • Configure and manage operating systems (Windows and Linux), applications (commercial and government), networks (IPs, subnets, etc.), and network equipment (switches)
  • Configure and manage DOD and IC standard distributed authentication services
  • Build up systems from "bare metal" in alignment with accredited baselines
  • Ensure that system hardware, operating systems, software systems and related procedures adhere to company and government policies.
  • Perform regular security monitoring to identify any possible intrusions.
  • Perform daily backup operations.
  • Perform regular file archival and purge, as necessary.
  • Create, change and delete user accounts per request.
  • Perform ongoing performance tuning, hardware upgrades and resource optimization, as required.
  • Repair and recover from hardware or software failures for multiple sites.
  • Maintain Video Wall System and displays.

Requirements

Necessary Skills and Experience

  • An active U.S. government issued security clearance is required prior to start date. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance
  • Bachelor's degree in Computer Science, Information Technology, or a related field
  • Minimum 7 years of experience in system administration, system engineering, or a related field
  • Experience with Linux/Unix system administration, including installation, configuration, and troubleshooting

Beneficial Skills and Experience

  • Experience with simple scripts such as, Powershell or Bash
  • Experience with software development Information Technology infrastructure tools (Terraform, Ansible, Puppet, or Chef), setup and management
  • Experience administering server-side technology such as: PHP, Ruby on Rails, or ASP.NET​
  • Strong knowledge of network protocols and security technologies
  • Excellent problem-solving and communication skills, with the ability to work in a fast-paced environment.
  • Knowledge of Joint IO Range, Defense Research and Engineering Network, and other similar environments
  • Security+, GSLC, GSEC, or other DoD approved 8570 Baseline Certification in the Information Assurance Management (IAM) Level I or Information Assurance Technical (IAT) Level II categories
  • Experience with open source platforms such as, Kubernetes, Red Hat 7&8 and/or Windows 10, ACAS, Rancher, Grafana and Cloud Security Gateway
  • Knowledge of network infrastructures in a DOD environment in Hawaii

Benefits

CTI is a rapidly growing company offering the following:

  • Medical, dental and vision insurance
  • H.S.A. (partially funded by CTI) and Flex Spending
  • Company-paid life insurance/AD&D and disability insurance
  • Optional supplemental life, critical illness, hospital indemnity and accident insurances
  • Paid vacation, sick leave and holidays
  • 401k plan with Safe Harbor contribution
  • Tuition reimbursement/professional training options
  • Employee Assistance Program
  • Travel Assistance
  • Financial Planning Assistance
  • Voluntary Pre-Paid Legal
  • Flexible schedules with telecommuting options
  • Service awards program

CTI is an Equal Opportunity employer and shall abide by the requirements of 41 CFR 60-1.4(a), 60-300.5(a) and 60-741.5(a). These regulations prohibit discrimination against qualified individuals based on their status as protected veterans or individuals with disabilities, and prohibit discrimination against all individuals based on their race, color, religion, sex, sexual orientation, gender identity or national origin. Moreover, these regulations require that covered prime contractors and subcontractors take affirmative action to employ and advance in employment individuals without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability or veteran status.

Apply for this job

*

indicates a required field

Resume/CV*

Accepted file types: pdf, doc, docx, txt, rtf

Cover Letter

Accepted file types: pdf, doc, docx, txt, rtf


Education

Select...
Select...

Select...
Select...
Select...
Select...
Select...
Select...
Are you willing to travel for work? If so, how often? *
Select...

If someone referred you to this job, who referred you?

Voluntary Self-Identification

For government reporting purposes, we ask candidates to respond to the below self-identification survey. Completion of the form is entirely voluntary. Whatever your decision, it will not be considered in the hiring process or thereafter. Any information that you do provide will be recorded and maintained in a confidential file.

As set forth in CTI ’s Equal Employment Opportunity policy, we do not discriminate on the basis of any protected group status under any applicable law.

Select...
Select...
Race & Ethnicity Definitions

If you believe you belong to any of the categories of protected veterans listed below, please indicate by making the appropriate selection. As a government contractor subject to the Vietnam Era Veterans Readjustment Assistance Act (VEVRAA), we request this information in order to measure the effectiveness of the outreach and positive recruitment efforts we undertake pursuant to VEVRAA. Classification of protected categories is as follows:

A "disabled veteran" is one of the following: a veteran of the U.S. military, ground, naval or air service who is entitled to compensation (or who but for the receipt of military retired pay would be entitled to compensation) under laws administered by the Secretary of Veterans Affairs; or a person who was discharged or released from active duty because of a service-connected disability.

A "recently separated veteran" means any veteran during the three-year period beginning on the date of such veteran's discharge or release from active duty in the U.S. military, ground, naval, or air service.

An "active duty wartime or campaign badge veteran" means a veteran who served on active duty in the U.S. military, ground, naval or air service during a war, or in a campaign or expedition for which a campaign badge has been authorized under the laws administered by the Department of Defense.

An "Armed forces service medal veteran" means a veteran who, while serving on active duty in the U.S. military, ground, naval or air service, participated in a United States military operation for which an Armed Forces service medal was awarded pursuant to Executive Order 12985.

Select...

Voluntary Self-Identification of Disability

Form CC-305
Page 1 of 1
OMB Control Number 1250-0005
Expires 04/30/2026

Why are you being asked to complete this form?

We are a federal contractor or subcontractor. The law requires us to provide equal employment opportunity to qualified people with disabilities. We have a goal of having at least 7% of our workers as people with disabilities. The law says we must measure our progress towards this goal. To do this, we must ask applicants and employees if they have a disability or have ever had one. People can become disabled, so we need to ask this question at least every five years.

Completing this form is voluntary, and we hope that you will choose to do so. Your answer is confidential. No one who makes hiring decisions will see it. Your decision to complete the form and your answer will not harm you in any way. If you want to learn more about the law or this form, visit the U.S. Department of Labor’s Office of Federal Contract Compliance Programs (OFCCP) website at www.dol.gov/ofccp.

How do you know if you have a disability?

A disability is a condition that substantially limits one or more of your “major life activities.” If you have or have ever had such a condition, you are a person with a disability. Disabilities include, but are not limited to:

  • Alcohol or other substance use disorder (not currently using drugs illegally)
  • Autoimmune disorder, for example, lupus, fibromyalgia, rheumatoid arthritis, HIV/AIDS
  • Blind or low vision
  • Cancer (past or present)
  • Cardiovascular or heart disease
  • Celiac disease
  • Cerebral palsy
  • Deaf or serious difficulty hearing
  • Diabetes
  • Disfigurement, for example, disfigurement caused by burns, wounds, accidents, or congenital disorders
  • Epilepsy or other seizure disorder
  • Gastrointestinal disorders, for example, Crohn's Disease, irritable bowel syndrome
  • Intellectual or developmental disability
  • Mental health conditions, for example, depression, bipolar disorder, anxiety disorder, schizophrenia, PTSD
  • Missing limbs or partially missing limbs
  • Mobility impairment, benefiting from the use of a wheelchair, scooter, walker, leg brace(s) and/or other supports
  • Nervous system condition, for example, migraine headaches, Parkinson’s disease, multiple sclerosis (MS)
  • Neurodivergence, for example, attention-deficit/hyperactivity disorder (ADHD), autism spectrum disorder, dyslexia, dyspraxia, other learning disabilities
  • Partial or complete paralysis (any cause)
  • Pulmonary or respiratory conditions, for example, tuberculosis, asthma, emphysema
  • Short stature (dwarfism)
  • Traumatic brain injury
Select...

PUBLIC BURDEN STATEMENT: According to the Paperwork Reduction Act of 1995 no persons are required to respond to a collection of information unless such collection displays a valid OMB control number. This survey should take about 5 minutes to complete.