Senior Systems Administrator

Location

Lexington, Kentucky

Monday-Friday

$135,000-$155,000, based on experience.

Lexmark is expanding our Infrastructure Operations team and is seeking experienced Systems Administrators/Engineers to support our global data center and cloud infrastructure environments. This team is responsible for the daily operational support, maintenance, security, and optimization of enterprise infrastructure across on-premises and cloud platforms, including Microsoft Azure, AWS, and Oracle Cloud Infrastructure (OCI).

• Server Administration
  • Install, configure, maintain, and support Windows and Linux servers across physical, virtual, on-premises, and cloud environments
  • Deploy and manage VMware virtual machines, clusters, and resource pools
  • Monitor server health, performance, and availability across enterprise environments
  • Perform system patching, upgrades, and security hardening
  • Manage backup and disaster recovery processes
  • Troubleshoot infrastructure, server, and operating system issues
• Cloud & Virtualization Management
  • Deploy and support infrastructure in Azure, AWS, and Oracle Cloud Infrastructure (OCI)
  • Configure and optimize cloud-based compute, storage, networking, and security services
  • Administer VMware vSphere and vCenter environments
  • Perform capacity planning and performance optimization for virtualized systems
  • Support hybrid infrastructure integrations between on-premises and cloud platforms
• Automation & Dev Ops
  • Develop and maintain infrastructure automation using:
    • Ansible
    • Power Shell
    • Bash scripting
  • Support Dev Ops initiatives and CI/CD pipeline development
  • Automate operational tasks and improve deployment efficiency
• Security & Compliance
  • Implement and maintain security best practices across Windows and Linux environments
  • Perform system hardening, vulnerability remediation, and access control management
  • Conduct security audits, vulnerability assessments, and compliance activities
  • Support compliance requirements such as PCI-DSS, HIPAA, or similar frameworks
• Monitoring & Optimization
  • Monitor infrastructure utilization, system performance, and operational health
  • Identify and resolve performance bottlenecks
  • Analyze logs and proactively address issues before service disruption occurs
  • Recommend and implement improvements for infrastructure stability and scalability
• Documentation & Collaboration
  • Maintain accurate technical documentation, procedures, and troubleshooting guides
  • Share technical knowledge and assist with internal training initiatives
  • Collaborate with global teams, vendors, and stakeholders on operational and project activities
  • Communicate technical information clearly to both technical and non-technical audiences

• Education & Experience
  • Bachelor’s degree in Computer Science, Information Technology, or related field (or equivalent experience)
  • 5–7 years of experience supporting enterprise Windows and Linux environments
  • Experience supporting infrastructure within a global organization
• Technical Skills
  • Strong experience with:
    • Windows Server (2012, 2016, 2019)
    • Linux distributions such as CentOS, Ubuntu, and Red Hat
    • VMware vSphere and vCenter
    • Azure, AWS, and/or Oracle Cloud Infrastructure
  • Experience managing:
    • Active Directory
    • DNS
    • DHCP
    • Core networking services
  • Familiarity with:
    • Networking protocols
    • Firewalls
    • Security best practices
    • Hybrid cloud environments
• Automation & Dev Ops
  • Proficiency in:
    • Power Shell
    • Bash scripting
    • Ansible
  • Experience with Dev Ops methodologies and CI/CD pipelines preferred
• Professional Skills
  • Strong troubleshooting and analytical skills
  • Excellent verbal and written communication abilities
  • Ability to work independently and collaboratively in a global team environment
  • Experience working across international teams and time zones is a plus
• Preferred Qualifications
  • Experience with enterprise-scale infrastructure deployments
  • Strong infrastructure security background
  • Experience integrating third-party software solutions into enterprise environments
    
    Knowledge of infrastructure automation and orchestration best practices