Demo

Sr. System Administrator (CBB)

Themis Insight, LLC
Linthicum Heights, MD Full Time
POSTED ON 4/8/2026
AVAILABLE BEFORE 5/7/2026
Themis Insight solves difficult business, IT, and analytic problems by addressing the whole problem – not just the symptoms – using interdisciplinary approaches that are both practical and innovative. We provide fresh alternatives to ordinary, mainstream consulting firms through small, highly skilled, and hand-picked teams that can meet clients' needs in any industry. Our broad interdisciplinary understanding allows us to provide the right solution, even if it is from outside the industry or traditionally defined problem space. We bring Public and Private, Civilian and Military expertise to every case.

We are hiring a Sr. System Administrator (CBB) to work in Linthicum Heights, MD. Position location is subject to change based on central MD client's needs.

Required: TS/SCI with a Polygraph

Description

  • Creates, and maintains RedHat Linux virtual machines running in a cloud infrastructure (Amazon AWS).
  • Evaluates systems for IAVA compliance and applies necessary security updates/patches.
  • Performs command line system administration tasks on virtual machines.
  • Handles regular system backups and periodically tests backups for functionality.
  • Communicates with developers and dev ops team members to provide system administration support.

Essential Duties And Responsibilities

  • Apply patches and upgrades.
  • Troubleshoot server issues.
  • Administer customer accounts
  • Deploy monitoring tools.
  • Deploy applications and tools.
  • Assist with escalated customer tickets.
  • Installation and cabling of equipment

Individual Capabilities/Experience Required

  • Ten (10) years experience as a SA in programs and contracts of similar scope, type, and complexity is required. Bachelor’s degree in a technical discipline from an accredited college or university is required. Five (5) years of additional SA experience may be substituted for a bachelor’s degree.
  • Linux command line system administration (CentOS, RedHat, Amazon Linux, or equivalent)
  • Experience applying system updates via yum or equivalent patching repository
  • Experience working within a cloud environment a plus (Amazon AWS, Azure, or equivalent cloud infrastructure with virtual machines)
  • Experience or knowledge of RedSeal Network Mapping tool a plus
  • Knowledge of software deployed on systems a plus but not required (Elasticsearch, Docker, Kubernetes, Nifi)

Individual Capabilities/Experience Desired

  • Syslog/NxLog
  • Nagios or other similar monitoring applications
  • Scripting experience (Python/Perl)

Themis Insight has all the PERKS!

You are our most valuable resource — your ambition, your knowledge, your creativity. We offer an industry-leading set of benefits to supplement your normal salary compensation. Themis Insight has you covered with flexible ways to balance work and home life, full health benefit premium coverage, and generous contributions toward your retirement.

  • Competitive health, dental, and vision plans with 100% paid premiums.
  • 401k: We contribute 6% even if you don't!
  • Time Off: 11 standard holidays, and 25 days of PTO
  • Career Development: Get career counseling and individualized career development plans, including education and training.
  • Employee referral bonuses for successful hires

Themis Insight is an Equal Opportunity/Affirmative Action employer.

Themis Insight provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state or local laws.

This policy applies to all terms and conditions of employment, including recruiting, hiring, placement, promotion, termination, layoff, recall, transfer, leaves of absence, compensation and training.

Salary.com Estimation for Sr. System Administrator (CBB) in Linthicum Heights, MD
$101,557 to $126,386
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