Senior Linux Systems Administrator

The Senior Linux Systems Administrator is responsible for the architecture, administration, automation, security, and lifecycle management of enterprise Linux platforms supporting critical healthcare, research, academic, and business applications. This role provides senior-level technical leadership for Linux infrastructure, ensuring high availability, operational excellence, cybersecurity compliance, and disaster recovery preparedness across on-premises, hybrid cloud, and healthcare application environments.

The position requires extensive experience working collaboratively with infrastructure engineering, cybersecurity, cloud operations, storage, networking, Dev Ops, application teams, vendors, and organizational leadership to deliver reliable and scalable services.

The Senior Linux Systems Administrator serves as a technical expert and trusted advisor, leading complex projects, driving modernization initiatives, developing automation strategies, and supporting enterprise backup, recovery, and cyber-resiliency programs.

Design, deploy, administer, and support enterprise Linux platforms, including Ubuntu, Red Hat Enterprise Linux (RHEL), , and other enterprise distributions.

Manage Linux operating system lifecycle activities including installation, patching, upgrades, performance tuning, security hardening, and retirement.

Administer enterprise services including authentication, identity integration, DNS, NTP, certificates, file systems, storage, and networking.

Implement and support Linux High Availability (HA) and clustering technologies to ensure critical application availability.

Troubleshoot complex operating system, application, storage, and infrastructure issues across multi-tier environments.

Support mission-critical healthcare applications including Epic and other clinical, research, and academic systems.

Manage enterprise storage integration, including SAN, NAS, software-defined storage, and cloud-based storage services.

Utilize Logical Volume Manager (LVM), file systems, and performance analysis tools to optimize platform performance and scalability.

Automation, Dev Ops & Infrastructure Modernization

Develop and maintain automation solutions using Ansible, Python, Bash, Power Shell, or other scripting languages.

Implement Infrastructure-as-Code (IaC) and configuration management best practices.

Partner with Dev Ops and application teams to streamline deployments, configuration management, and operational processes.

Support containerized workloads using Docker, Podman, Kubernetes, Open Shift, AKS, or similar orchestration platforms.

Evaluate emerging technologies and recommend solutions that improve reliability, scalability, security, and operational efficiency.

Lead modernization initiatives involving cloud adoption, platform migrations, automation, and service transformations.

Security, Compliance & Cyber Resilience

Implement and maintain Linux security hardening standards aligned with healthcare, regulatory, and cybersecurity requirements.

Collaborate with Information Security teams on vulnerability remediation, incident response, threat mitigation, and compliance initiatives.

Support privileged access management, auditing, endpoint protection, logging, and security monitoring solutions.

Participate in cybersecurity preparedness and resilience planning activities.

Maintain documentation and operational standards supporting regulatory and audit requirements.

Backup, Recovery & Disaster Recovery

Design, implement, monitor, and maintain enterprise backup, recovery, and cyber-recovery solutions for Windows, Linux and related infrastructure platforms.

Collaborate with backup, storage, and security teams to ensure recoverability of critical healthcare and business systems.

Participate in disaster recovery planning, testing, and operational readiness exercises.

Validate backup integrity through regular recovery testing and documentation of recovery procedures.

Support data protection technologies including immutable storage, cyber vaults, air-gapped solutions, replication, and ransomware recovery capabilities.

Assist in defining and executing enterprise data retention and recovery strategies.

Lead technical projects and work efforts involving multiple infrastructure and application teams.

Serve as an escalation point for complex technical issues and operational incidents.

Develop and maintain technical documentation, standards, procedures, architecture diagrams, and knowledge articles.

Mentor junior administrators and engineers while…