Linux Engineer

The Tsui Group is seeking a qualified and experienced candidate to join our aviation team as a IT Technical Support II in Los Angeles County with the following duties. Position Description Summary This position will follow established procedures to troubleshoot, coordinate and resolve systems or hardware related incidents. The position is responsible for the initial analysis, diagnosis and troubleshooting of events. Ensure reported production outages/incidents are communicated and resolved in an expeditious manner. Manage staff onboarding and offboarding processes. Provide helpdesk related support in all areas of IT functions for the Airport Development Group. Key Responsibilities: Answer incoming customer emails to the Help Desk. Follow established procedures to diagnose and troubleshoot system issues. Analyze, determine, and document reported production outages/incidents. Determine severity, impact, and nature of incidents. Escalate as needed. Communicate clearly with other team members. Submit tickets for new service or applications requests in Freshdesk and IT Service-Now and other related tracking applications. Complete onboarding or offboarding functions for staff being mobilized or demobilized. Perform hardware and software installations. Oversee deployments and relocations of staff at various locations throughout the airport footprint. Provide IT support at Division-wide sponsored events. Provide on-the-job training to new department staff members. Provide computer orientation to new staff. May assume other duties as required/needed. Maybe required to work various shifts as needed. Candidate will need the ability to be mobile in order to visit different sites on campus to provide technical support. Requirements Hardware and Infrastructure Experience: PC Hardware Troubleshooting Capable of diagnosing and resolving hardware component failures including motherboards, power supplies, memory and storage devices. Proficient in handling upgrades, replacements, and configurations. Installation, Configuration, and Maintenance Experience: Microsoft Office 365 Suite Proficient in deploying, troubleshooting, and providing user support for both standalone Microsoft Office and Microsoft 365 versions. Highly experienced with core productivity tools such as Word, Excel, PowerPoint, and Outlook, as well as collaboration and integration solutions like OneDrive and Teams Education and Professional Experience: Bachelor's degree in computer science or related field preferred Minimum of 10 years of experience Other Requirements: Candidate must have access to company vehicle or be willing to use personal vehicle. Must be able to lift at least 40 lbs. Ability to organize short and long-term tasks and communicate status of tasks with clients and management. Effective oral and written communication skill, with an ability to communicate complex issues to a non-technical audience. Ability to work with others. Self-starter with results driven focus. Capability to assume additional responsibilities. Demonstrated experience managing data coordination and conversion projects. Benefits Salary Range: $94,000-$99,000 Medical, Vision, & Dental – 100% covered for the employee* Life and Disability Insurance 10.5 days of Vacation pay (Accrued) 6 days of Sick pay (Available Immediately) 10 days of Holiday pay (9 Holidays, 1 Personal Day) 3% Employer Contribution 401k (After 1 year of service) Monthly Stipend for Cell Phone Laptop for work purposes

Los Angeles, CA, USA

$94,000-99,000/year

Workable

Network Administrator with COMSEC Experience

Saalex Solutions is seeking a Network Administrator with COMSEC Experience in Ridgecrest, CA. Saalex Solutions, a division of Saalex Corp., is an Engineering and Information Technology Services company with a focus on Test Range Operations and Management, Engineering and Logistics Services, Data Analytics and Business Intelligence Services and Information Technology Services. Founded in 1999 by Travis Mack, Saalex Solutions is a Service Disabled Veteran-Owned and Operated business with prime and subcontract expertise serving the Navy, Army, Air Force, NASA, corporate clients, and local governments. We employ a workforce of over 900 at military and NASA installations nationwide and have offices in Washington DC, Lexington Park, MD, Camarillo CA, Rockledge FL, Newport RI, Ridgecrest CA, Corona CA and Keyport WA. Saalex offers competitive compensation, career development, flexible work schedules and excellent benefits. Position Type: Full-Time Salary: $90K-$115K (depending on experience) Work Location: Onsite. Essential Functions: We are seeking a skilled Network Engineer with COMSEC (Communications Security) experience to support a mission-critical DoD program. The ideal candidate will have a strong background in network infrastructure, secure communications, and cryptographic key management, with a deep understanding of DoD COMSEC policies and procedures. Network Engineering Design, implement, and maintain secure LAN/WAN architectures. Configure and troubleshoot routers, switches, firewalls, and VPNs. Monitor network performance and ensure high availability and reliability. Maintain network documentation, diagrams, and configuration baselines. COMSEC Operations Manage and safeguard cryptographic keying material using EKMS/KMI systems. Operate and maintain COMSEC equipment (e.g., TACLANE, KG-175, STE). Ensure compliance with NSA and DoD COMSEC policies (e.g., CNSSI 4001, DoDI 8523.01). Conduct periodic COMSEC audits, inventories, and incident reporting. Security & Compliance Implement network security controls in accordance with RMF and STIGs. Collaborate with cybersecurity teams to address vulnerabilities and threats. Support accreditation and certification efforts for classified networks. Other duties as assigned or required. Requirements 5+ years of experience in network engineering. 2+ years of hands-on COMSEC experience. Familiarity with Cisco, Juniper, or similar network platforms. Experience with EKMS/KMI, TACLANE, and other COMSEC devices. Strong understanding of DoD cybersecurity and COMSEC regulations. CompTIA Security+ or CCNA certification required. COMSEC Custodian Certification or equivalent training. Security Clearance: Active Top Secret clearance required. Requirements to obtain a clearance include US Citizenship, security investigation, etc. Benefits Health Care Plan (Medical, Dental & Vision) Retirement Plan (401k, IRA) Life Insurance (Basic, Voluntary & AD&D) Paid Time Off (Vacation, Sick & Public Holidays) Short Term & Long Term Disability Training & Development Wellness Resources Stock Option Plan

Ridgecrest, CA 93555, USA

$90,000-115,000/year

Workable

Linux System Administrator, Senior

Resource Management Concepts, Inc. (RMC) is dedicated to delivering innovative management and technology solutions to both government and commercial clients, focusing on the protection and preservation of people and the environment across the United States. Position: Senior Linux Administrator Location: Hybrid (Crane, IN) RMC is seeking an experienced Senior Linux System Administrator to support and manage critical server infrastructure for a government client in Crane, Indiana. This essential hybrid role is responsible for the comprehensive administration, maintenance, and troubleshooting of enterprise Linux-based IT systems. The position emphasizes expertise in virtualization, networking, and integration while supporting individual and team initiatives to ensure reliable and secure operations. Key Responsibilities Administer, configure, and troubleshoot Red Hat Enterprise Linux (RHEL) 8+ environments. Manage and maintain databases including Microsoft SQL, PostgreSQL, and SQLite. Oversee and maintain Splunk systems deployed on Red Hat platforms. Support Kubernetes (K3s) clusters in both production and testing settings. Administer and optimize vulnerability management tools such as Tenable.sc, Nessus, or ACAS. Provide virtualization support for VMware and Nutanix AOS/AHV. Ensure consistent and reliable LAN/WAN network performance. Diagnose and resolve hardware, software, and infrastructure issues. Enforce DISA STIG and RMF cybersecurity compliance. Monitor system health, maintain logs, and produce operational reports. Collaborate efficiently both independently and as a member of cross-functional technical teams to meet project goals. Requirements High School Diploma/GED is required. A Bachelor’s degree in an Information Technology field is preferred. Minimum of 5 years’ experience in Linux system administration, ideally with Red Hat. Proficiency in SQL Server Management Studio, Microsoft SQL, PostgreSQL, and SQLite databases. Demonstrated experience managing virtualized and physical networking environments. Practical experience with Tenable.sc, Nessus, or other vulnerability assessment tools. Strong background in VMware and Nutanix environments. Familiarity with Kubernetes (K3s) and container orchestration. Advanced troubleshooting skills across hardware, software, and network layers. Excellent written and verbal communication skills. An Active DoD Secret clearance is required to start. Must have DoD 8570/DoN 5239 IAT Level II certification (Security + CE). Preferred Qualifications Proficiency in Bash and PowerShell scripting. Understanding of DISA STIG and the Risk Management Framework (RMF). A collaborative mindset and initiative to further secure and innovate enterprise Linux environments. Benefits At RMC, we're committed to your career growth! RMC differentiates itself from other firms through its investment in our employees. We invest our resources to train, certify, educate, and build our employees. RMC can offer you a great place to work with a small company feel and give you the experience, tuition assistance, and certifications that will take your career to the next level. This also includes a competitive paid vacation package with 11 paid federal holidays. Additionally, we also offer high-quality, low-deductible healthcare plans, pet insurance, and a competitive 401K package. Salary at RMC is determined by various factors, including but not limited to location, a candidate's specific combination of education, knowledge, skills, competencies, and experience, as well as contract-specific requirements. The current salary range for this position will be $80,000 to $110,000 (annually). #LI-LL1 #IND123

Crane, IN 47522, USA

$80,000-110,000/year

Linux Engineer

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