IT Systems Administrator

About the role

POSITION SUMMARY The IT Systems Administrator is a hands-on position which will own and operate the tools, endpoints, and infrastructure that keep our people, our network, and our field deployments running securely and reliably. You'll be the dedicated LEXSO-side counterpart to our parent company's IT function, building and administering the systems specific to our environment while coordinating with Constellis IT on shared services. This is a builder role: you'll stand up new tooling, tighten existing processes, and keep clear, current documentation and records as the company scales.   RESPONSIBILITIES Own the full lifecycle of company laptops and devices including provisioning, configuration, inventory, and retirement Deploy and administer a mobile device management (MDM) platform across the Mac fleet Enforce disk encryption, endpoint protection, firewall settings, and patch compliance Maintain an accurate, current asset inventory across all issued hardware Administer user account lifecycle across core systems including onboarding, role changes, and offboarding Enforce multi-factor authentication and access control standards across company systems Manage least-privilege access reviews and local admin rights on endpoints Support on-premises server stack installation, configuration, and troubleshooting at customer sites, on an as-needed basis Provide network infrastructure support with switches, firewalls, VPN, connectivity for field and office environments, as other issues as they arise Partner with Field Ops and delivery engineering on installation and integration issues in the field when needed Stand up and monitor centralized logging and alerting across endpoints and infrastructure Manage patch and vulnerability remediation cadence, with regular status reporting Own backup procedures and removable media handling practices Write and maintain clear IT policies, procedures, and system documentation Produce accurate, current records and evidence on request to support internal reviews and customer or partner due diligence Serve as the primary point of contact between LEXSO and Constellis IT for shared services and tooling decisions Evaluate and recommend new tools as the company's needs grow Communicate clearly with leadership on project status, risks, and tradeoffs QUALIFICATIONS 4+ years in a hands-on IT systems administrator, systems engineer, or infrastructure role Direct experience deploying and managing Apple's MDM platform for a Mac-based fleet Experience with Jamf, Kandji, Mosyle, or Intune is a plus Working knowledge of endpoint hardening, disk encryption, endpoint protection/EDR, firewall configuration, and patch management Experience administering identity and access management, including MFA enforcement and account lifecycle processes Comfort with basic network infrastructure including switches, firewalls, VPN, troubleshooting connectivity issues Experience administering Google Workspace, or demonstrated ability to learn it quickly Experience writing and maintaining IT policies, procedures, and technical documentation Strong written and verbal communication and the ability to explain technical tradeoffs to non-technical stakeholders Self-directed and comfortable owning a workstream independently in a small, fast moving team Preferred qualifications: Experience supporting IT for a government contractor or other regulated environment Experience with centralized logging/SIEM tooling and basic log review practices Experience supporting field or on-site deployments, not just a remote environment Prior experience as the sole or founding IT hire at a small or growing company BENEFITS Constellis offers a comprehensive, total rewards package that includes competitive compensation and a flexible benefits package that reflects its commitment to creating a diverse and supportive workplace. Qualifications Equal Opportunity Employer Race/Color/Sex/Sexual Orientation/Gender Identity/Disability/Vet Company Info The modern threat landscape poses complex challenges. In isolation, individual threats can be managed. However, when coordinated, complexity scales dramatically. Modern security requires detection across all threat types simultaneously. No single sensor or security solution can solve this problem. LEXSO™ transforms the operational friction of sensor saturation into a unified, intelligent security system. As an AI-native, MOSA-compliant architecture, LEXSO™ fuses disparate sensor data directly at the edge. As a result, LEXSO™ detects, classifies and mitigates threats in sub-second timelines, maintaining a resilient operating picture even when the network is compromised. EEOC Statement Constellis and its affiliated companies are equal opportunity employers. All applicants receive consideration without regard to race, color, sex, age, ethnicity, religion, national origin, disability, veteran status or any other characteristic prohibited by federal, state, or local law.