Senior Systems Administrator / Infrastructure Engineer

Eliassen Group; United States; Remote; USD 90,000 - 103,000; Full time

Benefits offered by this job

Medical benefits

Dental benefits

Vision benefits

401k with company matching

Life insurance

Job summary

Eliassen Group is seeking a senior Systems Administrator/Infrastructure Engineer to manage Linux and Windows Server environments, oversee AWS services, and drive automation for reliability and security. The role is remote with a client focus on production-support responsibilities and incident response.

Ideal candidates have hands-on AWS experience, proficiency with Ansible, and strong monitoring skills across Nagios, CloudWatch, and PagerDuty to continuously improve scalability and security.

Qualifications

• Strong hands-on experience with Linux and Windows Server administration.
• Experience administering production environments within AWS.
• Working knowledge of EC2, S3, VPC, IAM, and CloudWatch.
• Experience with Ansible or similar infrastructure automation tools.
• Experience with infrastructure monitoring and alerting platforms.
• Strong troubleshooting and incident-response skills; ability to work independently and take ownership of infrastructure operations.

Responsibilities

• Administer and support Linux and Windows Server environments.
• Manage and maintain AWS infrastructure, including EC2, S3, VPC, IAM, and CloudWatch.
• Perform system patching, maintenance, upgrades, and security remediation.
• Develop and maintain infrastructure automation using Ansible.
• Monitor infrastructure health and performance using Nagios, CloudWatch, and PagerDuty.
• Troubleshoot production infrastructure issues and participate in incident response.
• Support infrastructure security, access management, and operational best practices.
• Identify opportunities to improve reliability, automation, scalability, and overall infrastructure operations.

Skills

Linux administration

Windows Server administration

AWS administration

Incident response

Infrastructure automation

Monitoring & alerting

Troubleshooting

Tools

Ansible

Nagios

CloudWatch

PagerDuty

EC2

S3

VPC

IAM

Job description

Remote

Our client seeks a senior-level Systems Administrator or Infrastructure Engineer to administer Linux and Windows Server environments, manage AWS services, and drive automation and operational excellence. The role requires hands‑on support of production systems, proactive monitoring, incident response, and continuous improvement of reliability, scalability, and security.

We can facilitate w2 and corp‑to‑corp consultants. For our w2 consultants, we offer a great benefits package that includes Medical, Dental, and Vision benefits, 401k with company matching, and life insurance.

Rate: $65.00 to $75.00/hr. w2

JN -112026-109421

Responsibilities:

• Administer and support Linux and Windows Server environments.
• Manage and maintain AWS infrastructure, including EC2, S3, VPC, IAM, and CloudWatch.
• Perform system patching, maintenance, upgrades, and security remediation.
• Develop and maintain infrastructure automation using Ansible.
• Monitor infrastructure health and performance using tools such as Nagios, CloudWatch, and PagerDuty.
• Troubleshoot production infrastructure issues and participate in incident response.
• Support infrastructure security, access management, and operational best practices.
• Identify opportunities to improve reliability, automation, scalability, and overall infrastructure operations.

Experience Requirements:

• Strong hands‑on experience with Linux and Windows Server administration.
• Experience administering production environments within AWS.
• Working knowledge of EC2, S3, VPC, IAM, and CloudWatch.
• Experience with Ansible or similar infrastructure automation tools.
• Experience with infrastructure monitoring and alerting platforms.
• Strong troubleshooting and incident‑response skills.Ability to work independently and take ownership of infrastructure operations.