Senior Systems Administrator

NetCologne IT Services; United States; Remote; USD 90,000 - 150,000; Full time

Benefits offered by this job

Health Care Plan (Medical, Dental &amp

Retirement Plan (401k, IRA)

Paid Time Off (Vacation, Sick & Public

Short Term & Long Term Disability

Training & Development

Work From Home

Wellness Resources

Job summary

NetCologne IT Services seeks an experienced Enterprise Infrastructure Administrator to design, deploy, and maintain critical IT systems across on‑premises and cloud environments. You will ensure performance, security, and reliability while planning migrations and capacity management.

The role requires hands-on expertise with Windows Server, Linux/Unix, VMware/Hyper‑V, and cloud platforms (AWS/Azure). You will lead automation efforts using PowerShell and scripting, supporting a fast-paced,

Qualifications

• Bachelor's degree in Information Technology, Computer Science, Network Engineering, or a related technical field preferred.
• 5+ years of experience administering enterprise infrastructure, distributed systems, or hybrid cloud environments.
• Strong hands-on experience with AWS, Microsoft Azure, Windows Server, Active Directory/Azure Active Directory, and Microsoft 365.
• Strong understanding of enterprise networking, including TCP/IP, DNS, DHCP, switching, routing, wireless networking, VPNs, and firewalls.
• Excellent troubleshooting, systems analysis, and problem-solving skills across infrastructure, networking, cloud, and business systems.

Responsibilities

• Design, implement, and maintain enterprise IT systems including servers, storage, virtualization, and network infrastructure.
• Ensure system performance, availability, and security across on‑premises, cloud, and hybrid environments.
• Plan and execute system upgrades, migrations, and consolidations.
• Monitor system performance and capacity, addressing issues proactively.
• Develop and maintain backup, disaster recovery, and business continuity processes.

Skills

5+ years experience

Enterprise infrastructure

Systems troubleshooting

Project leadership

Communication skills

Education

Bachelor's degree in IT/CS/Net Eng

Tools

AWS

Azure

Windows Server

Active Directory/AAD

Microsoft 365

VMware/Hyper-V

PowerShell

Python/Automation

Ansible/Terraform

Job description

Responsibilities

• Design, implement, and maintain enterprise IT systems, including servers, storage, virtualization, and network infrastructure.
• Ensure system performance, availability, and security across on-premises, cloud, and hybrid environments.
• Plan and execute system upgrades, migrations, and consolidations.
• Monitor system , performance, and capacity, proactively addressing issues.
• Develop and maintain backup, disaster recovery, and business continuity processes.
• Implement and enforce security policies, patch management, and vulnerability remediation.
• Provide expert‑level support for complex technical issues across systems, networks, and applications.
• Guide and mentor junior administrators and IT support staff.
• Serve as escalation point for critical incidents and outages

Advanced expertise in Windows Server, Linux/Unix, and hybrid IT environments.

Knowledge of networking, firewalls, storage solutions, and virtualization (VMware, Hyper-V).

Experience with cloud platforms (AWS, Azure, Google Cloud) and cloud migration strategies.

Proficiency in scripting and automation (PowerShell, Bash, Python, Ansible, Terraform).

Strong understanding of security principles, identity/access management, and compliance standards.

Required Qualifications

• Bachelor's degree in Information Technology, Computer Science, Network Engineering, or a related technical field preferred.
• 5+ years of experience administering enterprise infrastructure, distributed systems, or hybrid cloud environments.
• Strong hands‑on experience with AWS, Microsoft Azure, Windows Server, Active Directory/Azure Active Directory, and Microsoft 365.
• Strong understanding of enterprise networking, including TCP/IP, DNS, DHCP, switching, routing, wireless networking, VPNs, and firewalls.
• Excellent troubleshooting, systems analysis, and problem‑solving skills, with the ability to diagnose complex issues across infrastructure, networking, cloud, and business systems.
• Experience leading technical projects and working independently in a fast‑paced, growing environment.
• Strong communication skills and the ability to collaborate effectively with both technical and business teams.

Benefits

• Health Care Plan (Medical, Dental & Vision)
• Retirement Plan (401k, IRA)
• Paid Time Off (Vacation, Sick & Public Holidays)
• Short Term & Long Term Disability
• Training & Development
• Work From Home
• Wellness Resources