Senior Linux System Administrator 3

Geon Technologies; Columbia (MD); On-site; USD 195,000 - 250,000; Full time

Benefits offered by this job

Medical Insurance

Dental Insurance

Vision Insurance

HSA contribution

Short-Term Disability

Long-Term Disability

Life Insurance

AD&D Insurance

401k & Profit Sharing

Professional Development

Job summary

Geon Technologies is seeking a Senior Linux Systems Administrator to lead enterprise Linux infrastructure across development to production environments. The role emphasizes deployment automation, system integration, and ongoing operational support in a mission-critical IT landscape.

You will collaborate with software, network, and cybersecurity teams plus Government stakeholders, ensuring secure, scalable, and efficient Linux operations with automation and IaC practices.

Qualifications

• Senior Linux administration with enterprise focus.
• Experience with RHEL-compatible distros and automation tooling.
• Strong automation, IaC, and DevSecOps experience.

Responsibilities

• Administer and support enterprise Linux systems for availability and security.
• Operate server/storage/network/virtualization environments and perform tuning.
• Provide Tier 2/3 support including root-cause analysis.
• Automate OS install, deployment, patching, hardening, lifecycle management.
• Collaborate with developers, network, cybersecurity, and Government stakeholders.
• Lead Linux deployments across dev/test/stage/prod.
• Develop provisioning and configuration management using Kickstart, Ansible, IaC.

Skills

Advanced Linux

RHEL/Rocky/Oracle/CentOS

Ansible

Kickstart provisioning

Infrastructure as Code

DevSecOps

Virtualization

Storage & networking

System monitoring

Automation

Education

Bachelor's degree in a technical discipline

5 years SA experience substitution

Tools

Ansible

Kickstart provisioning

IaC

Job description

Geon Technologies is a rapidly growing small business that provides signal processing andsensor system integration services to the United States Government (USG) and the industrybase that supports them. Geon seeks to be known for “signals, sensors, and systems”. Geonhas expertise in the science and development of signal processing techniques and algorithm solutions for multi-INT applications. The signal processing and hardware focused sectors ofGeon are supported by the work Geon conducts with open architectures, open frameworks, andopen systems that facilitate the rapid development, integration, and deployment of techniquesand capabilities to operational contexts. Come join a company that brings unique expertise and value to our customers.

The Senior Linux Systems Administrator shall possess extensive experience supporting the implementation, operation, maintenance, troubleshooting, optimization, and sustainment of enterprise and mission-critical Information Technology (IT) systems. The successful candidate will provide technical leadership for Linux infrastructure, deployment automation, systems integration, and operational support across complex computing environments.

Responsibilities include:

• Administer, maintain, and support enterprise Linux systems and infrastructure to ensure availability, performance, security, and reliability.
• Manage day-to-day operations of server, storage, network, virtualization, and application environments, including system monitoring, troubleshooting, performance tuning, and capacity planning.
• Provide Tier 2 and Tier 3 support for complex system, infrastructure, and application issues, including root cause analysis and resolution of hardware, software, and integration problems.
• Configure, install, upgrade, patch, harden, and maintain Linux operating systems, server hardware, network components, and supporting infrastructure services.
• Collaborate with software developers, network engineers, cybersecurity personnel, and Government stakeholders to support system deployment, integration, and operational readiness.
• Define hardware specifications, deployment architectures, and infrastructure requirements to support enterprise and mission-critical environments.
• Lead the planning, automation, and execution of Linux system deployments across development, test, staging, and production environments.
• Develop and maintain automated provisioning and configuration management solutions using Kickstart, Ansible, and Infrastructure as Code (IaC) methodologies.
• Automate operating system installation, application deployment, patch management, security hardening, and lifecycle management processes to improve consistency, scalability, and operational efficiency.
• Establish and maintain deployment standards, configuration baselines, technical documentation, installation procedures, and operational support processes.
• Support system testing, validation, transition-to-operations, and operational acceptance activities while ensuring compliance with security and configuration management requirements.

Desired Technical Experience

• Advanced Linux systems administration experience.
• Experience with Red Hat Enterprise Linux (RHEL), Rocky Linux, Oracle Linux, CentOS, or similar enterprise Linux distributions.
• Expertise with Ansible automation, Kickstart provisioning, configuration management, and orchestration.
• Experience with Infrastructure as Code (IaC), DevSecOps practices, and deployment automation frameworks.
• Experience supporting clustered, distributed, highly available, and mission-critical Linux environments.
• Knowledge of virtualization, enterprise storage, networking, and system monitoring technologies.

Qualifications:

• Minimum Fifteen(15) years of experience as a SA in programs and contract 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.
• Active Security Clearance Required

About the work:
In May of 2019, Amazon opened its first AWS Ground Station, a "virtualized segment for ground processing" of satellite signals that support 54 MHz uplink and 500 MHz downlink processing using the proven AWS Cloud Services and technologies. Microsoft Orbital and Google were close behind with their own satellite processing architectures based on cloud services and technologies. At the same time, technologies supporting next‑generation 5G exploded into the same cloud technology arena. Geon has been awarded a prime contract to leverage these very same technologies to build next‑generation Software Defined Radio (SDR) solutions for the defense and intelligence industry. We are looking for fully‑cleared individuals that have an ambition to leverage their proven experience in building high performance processing systems and solutions to architect, develop, productize and deploy a whole new breed of open‑sensor framework based on the industries leading solutions.

Benefits:

• Medical Insurance - 75% employer paid; 25% employee paid.
• Dental Insurance - 100% employer paid.
• Vision Insurance - 100% employer paid.
• Health Spending Account (HSA) - Annual employer contribution of $2,650 (individual)/$5,300 (family)
• Short-Term Disability (STD) Insurance - 100% employer paid.
• Long-Term Disability (LTD) Insurance - 100% employer paid.
• Basic Life Insurance - 1x annual salary, up to $250,000 - employer paid.
• AD&D Insurance - 1x annual salary, up to $250,000 - employer paid.
• Voluntary Life and AD&D Insurance - Up to $300,000 - employee paid
• 401k & Profit Sharing - 5% Safe Harbor contributions, no match required; up to 10% Profit Sharing.
• Professional Development - $4,000 per calendar year to attend conferences & trainings.
• Tuition Reimbursement/Student Loan Repayment - Reimbursement of one class per semester towards continuing education with the option to apply up to $1,200 a year toward qualifying student loans.
• Employee Referral Incentive - $10,000 (paid 180 days after new hire start date).
• Annual Bonus - Performance Based.
• Paid Time Off - 160 hours.
• Holidays - 11 Federal Holidays.
• Maternity Leave - 160 hours followed by Short-term disability (STD).
• Paternity Leave - 160 hours
• Bereavement Leave - 24 hours (equivalent of 3 days) for immediate family
• Health & Wellness - $750 per calendar year for items such as gym memberships, ergonomic keyboards, standing desks, etc.
• Professional Subscriptions - $350 per calendar year.

Geon Technologies provides wage ranges in accordance with the Maryland Wage Range Transparency law. Paywithin the range will be decided by the company in its sole discretion and will be based on several factors including but not limited to experience and/or other qualifications. The projected pay range for this position is $195,000- $250,000.

Geon Technologies 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, pregnancy, 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.