Information Technology System Administrator

Overview Jr Systems IT Administrator - Chandler, AZ (Onsite) CMMC/NIST 171 Support RAJANT CORPORATION, the 20+-year leader in industrial wireless patented Kinetic Mesh networking solutions, is redefining real-time connectivity with resilient Smart Routing technology, ensuring secure, dynamic, and uninterrupted data flow for industrial autonomous and mobile operations across various industries. From robotic and vehicle autonomy to asset tracking, health and environmental monitoring, smart lighting, BMS, and industrial automation, Rajant’s military-grade secure, AI-powered wireless mesh networks deliver adaptive, always-on connectivity for high-stakes environments. Rajant's mission-critical systems are in use by indoor and outdoor industries such as Warehouse and Factory Automation, Robotics, IIoT, Mining, Rail, Ports, Energy, tunnel and underground communications. Position Summary: Join Rajant’s enterprise IT team to support our Chandler, AZ development site and collaborate daily with our Malvern, PA headquarters. This is a junior systems administration role in scope and escalation level, not an entry-level IT position. You’ll handle helpdesk/remote support, administer Windows & Linux (Ubuntu) environments, and execute routine security/compliance tasks aligned with NIST SP 800-171/CMMC. This role is hands on, documentation heavy, and process driven. This position will also require the selected candidate to apply for a US Secret security level clearance. Key Responsibilities End User Support & Operations Triage & resolve tickets onsite & remotely via company approved tools; own issues through resolution & document for internal knowledge base. Provision, image, and maintain end user workstations. Support printers/peripherals; manage break/fix, RMAs, and spares. Systems & Identity Administration Manage & administer Windows-based systems, Active Directory authenticated Ubuntu Linux systems (user access, patching, services, troubleshooting). Support Google Workspace and Microsoft 365 (account lifecycle, management, troubleshooting). Collaborate with the IT team to maintain security, performance, and compliance across systems. Other System Administration Administer Ubuntu Linux systems used by engineering and development teams. Perform user and group management, permissions, package management (apt), and patching. Troubleshoot Linux OS, service, and performance issues using CLI tools. Assist with system hardening and configuration in alignment with security baselines. Network & Onsite Hands Perform basic switch/WiFi tasks (port/VLAN changes under SOP), cabling, and small rack work; coordinate with Malvern for firewall/VPN changes via change control. Security & Compliance Support (CMMC/NIST 171) Run monthly checks & capture evidence: patch compliance reports, account recertifications, backup verification, and vulnerability scan scheduling. Perform first level SIEM/MDR alert triage and escalate per runbooks. Maintain and improve SOPs, system diagrams, and the evidence binder/wiki in coordination with Malvern IT and the FSO. Follow change control and least privilege practices; report exceptions. Documentation & Reporting Maintain clear and thorough documentation of IT procedures, troubleshooting steps, and user guides. Prepare and deliver monthly support and system health reports. Qualifications Required: Local to Chandler, AZ Ability to pass required background checks Ability to apply for and obtain a US Secret security level clearance Education: Bachelor’s Degree or certification in IT, Computer Science, or a related field (or equivalent hands-on experience). IT certifications (e.g., CompTIA Security+, Google Workspace Administrator) are preferred but not required. Experience: 2+ years in help desk/deskside support or junior systems administration. Hands on experience administering Windows 11 and Windows Server 2016+, and at least 1–2 years supporting Ubuntu Linux systems in a professional environment. Technical Skills: Practical Ubuntu/Linux administration skills including: systemd/service management, user/group permissions, package management (apt). Familiarity with remote desktop tools (e.g., TeamViewer, RDP). Knowledge of Active Directory, GPO Management, basic networking, and end-user security best practices. Basic networking (IP/DNS/DHCP/VLAN/VPN) and troubleshooting. Strong troubleshooting skills for both hardware and software. Soft Skills: Clear written/verbal communication. Customer service mindset; follows SOPs; timely escalation; dependable. Nice to Have: Experience supporting Linux systems for engineering or development teams. Exposure to SIEM/MDR, vulnerability scanners, Windows Autopilot/MDM. Experience in regulated environments (CUI, NIST 800 171, CMMC). Rajant Company Profile: We are the biggest name in dynamic wireless mesh networking you may not have heard of yet. No other mesh solution even comes close to the performance of our patented InstaMesh Kinetic Mesh technology in dynamic environments. We drive massive mines all over the globe, enabling autonomous haul trucks, shovels, and other equipment Our networks are in factories and warehouses automating repetitive and dangerous tasks We’re in Spirit Robot Dog and in a variety of aerial drones We link Oil and Gas sites, and automate Maritime Ports worldwide The U.S. Army trusts our resilient mesh technologies to keep America and our Global partners safe Why Join Rajant? Be part of a cutting-edge tech company leading the charge in resilient, AI-driven, real-time connectivity solutions. Work with a team of visionaries, engineers, and storytellers dedicated to reshaping industries through adaptive networking. Gain global exposure, supporting diverse industries and collaborating with some of the world’s most innovative companies. Who We Are We’re a tight-knit group of technology experts that demand excellence of ourselves and in all we do. We need like-minded professionals to identify tech problems and solve them, enabling our development teams to efficiently push ever more hardware and software solutions to market, faster and more reliably. Do you have what it takes to be a part of the Rajant Team? Impress us with your resume today. If you make the team, this will be the most challenging and rewarding place you\'ll ever work. Employment type: Full-Time, annual salary with Full Benefits. Location: Chandler, AZ office. On-Site. Apply: Easy Apply or Introduce yourself with cover letter & resume to: View email address on click.appcast.io. Rajant Corporation is an Equal Opportunity Employer and does not discriminate on the basis of race, color, religion, gender, national origin, age, physical or mental impairment, sexual orientation or any other category protected under federal, state or local law. Rajant is a USG Contractor and complies with all US laws, regulations and Executive Orders. #J-18808-Ljbffr