IT Systems Administrator

Kairos Power

. Install, configure, administer, maintain, and optimize infrastructure, services, and applications across AWS, SaaS, and on-premises environments .

Posted 11/3/2026full-timeRemote • United StatesMid-LevelSenior💰 $108,700 - $127,900 per yearWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in administering and optimizing infrastructure across AWS, SaaS, and on-premises environments, with a strong focus on automation and security best practices. Proficient in providing technical support and guidance while collaborating with stakeholders on application integrations and infrastructure changes.

Highest-signal resume keywords

AWS Infrastructure AdministrationMicrosoft Windows Server AdministrationInfrastructure as Code (IaC) SolutionsAutomation Using PowerShellCybersecurity Principles

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

AWS EC2Active DirectoryTerraformAnsibleMicrosoft Entra IDScriptingDNSDHCPSingle Sign-On (SSO)CloudFormation

Soft Skills

TroubleshootingCommunicationDocumentation

Tools & Technologies

AWS CLICloudWatchNutanix AHVFile ServicesIdentity Management

Industry Keywords

Change ManagementVulnerability ManagementDisaster RecoveryHybrid-Cloud EnvironmentsEnterprise Applications

Tech Stack

Tools & technologies

AnsibleAWSCloudCyber SecurityDNSEC2LinuxSQLTerraform

About the role

Key responsibilities & impact

Install, configure, administer, maintain, and optimize infrastructure, services, and applications across AWS, SaaS, and on-premises environments
Administer and support Microsoft Windows Server, Active Directory, Microsoft Entra ID, Microsoft 365, DNS, DHCP, file services, identity management, and Single Sign-On (SSO) integrations
Develop, maintain, and improve automation and Infrastructure as Code (IaC) solutions using Terraform, Ansible, CloudFormation, PowerShell, or similar technologies
Monitor system health, performance, security, and availability; investigate and troubleshoot complex infrastructure, cloud, identity, and application issues
Implement and maintain security controls, patch management, vulnerability remediation, and least-privilege access practices
Provide technical support for business-critical enterprise applications and collaborate with business stakeholders and software vendors on operations, integrations, upgrades, and implementations
Participate in change management activities and support application and infrastructure deployments, migrations, testing, upgrades, and production changes
Create and maintain technical documentation, standards, procedures, and knowledge base articles
Provide technical guidance and knowledge sharing to employees and junior IT staff
Perform other duties as assigned

Requirements

What you’ll need

5+ years of progressively responsible experience as a Systems Administrator, Cloud Administrator, Site Reliability Engineer, or similar role in a complex enterprise environment
Strong experience administering Microsoft Windows Server environments, Active Directory, Microsoft Entra ID, Microsoft 365 services, identity management, and SSO integrations
Working knowledge of Linux server administration in AWS and hybrid-cloud environments
Demonstrated experience administering AWS infrastructure, including EC2, IAM, VPC, Route 53, Systems Manager, FSx, CloudWatch, and related AWS technologies
Strong scripting and automation experience using PowerShell and AWS CLI
Experience supporting SaaS, cloud-native, hybrid-cloud, and on-premises applications and infrastructure
Working knowledge of networking, databases, backup and recovery, and disaster recovery concepts
Strong understanding of cybersecurity principles, vulnerability management, patch management, and security best practices
Excellent troubleshooting, communication, and documentation skills
Knowledge of cloud and hybrid infrastructure administration principles, including AWS, Microsoft, SaaS, and on-premises environments
Knowledge of Infrastructure as Code (IaC), configuration management, scripting, and systems automation practices
Knowledge of identity and access management principles, including Active Directory, Microsoft Entra ID, Single Sign-On, and least-privilege access
Ability to monitor and assess system health, performance, availability, and capacity across enterprise infrastructure and services
Knowledge of change management practices related to infrastructure and application deployments, migrations, upgrades, and production changes
Ability to support and coordinate application integrations, implementations, and upgrades across internal stakeholders and third-party vendors
Ability to develop and maintain technical standards, procedures, and system administration documentation
Ability to provide technical guidance and knowledge sharing to employees and less-experienced IT staff
Bachelor's degree in Computer Science, Information Technology, or related field preferred
8+ years of overall IT experience is preferred
Terraform and Ansible experience is preferred
Nutanix AHV administration experience is preferred
Advanced Microsoft Windows Server and Active Directory administration experience is preferred
Experience supporting application integrations, APIs, SQL databases, and reporting platforms is preferred
Experience working with software vendors during upgrades, implementations, and troubleshooting efforts is preferred
Experience supporting engineering, manufacturing, laboratory, or quality-focused organizations is preferred
Experience working in high-growth organizations undergoing technology transformation is preferred
Prior work experience in a fast-paced, high-growth startup is preferred
Occasionally requires working weekends
Occasionally requires extended hours to support system maintenance, deployments, upgrades, and critical incidents
Some travel may be required, up to 5%
Authorization by the Department of Energy to access Part 810-controlled information is required to work in the facility

Benefits

Comp & perks

Competitive compensation packages
Medical, dental and vision benefits for employees and their dependents
Paid Vacation
401(k)
Pre-tax health insurance, dependent care, and commuter benefits (FSA)