Kairos Power

Sep 28, 2026

IT Systems Administrator

On-siteUnited States

Alameda, California, United States · Albuquerque, New Mexico, United States

SQLAWSTerraform

Company Overview

Kairos Power is a new nuclear energy technology and engineering company whose mission is to enable the world’s transition to clean energy, with the ultimate goal to dramatically improve people’s quality of life while protecting the environment. This goal will be accomplished through the commercialization of the fluoride-salt-cooled, high-temperature reactor (FHR) that can be deployed with robust safety, affordable costs, and flexible operation to accommodate the expansion of variable renewables.

Job Summary

We are seeking an IT Systems Administrator II to support and maintain our cloud, on-premises, and SaaS platforms. This role is responsible for the administration, security, automation, and optimization of enterprise infrastructure across AWS, Microsoft, and on-premises environments.

The successful candidate will partner with business stakeholders and software vendors to support business-critical applications, upgrades, integrations, and implementations while ensuring the reliability, security, and performance of underlying infrastructure and services. The ideal candidate has experience supporting enterprise infrastructure in a regulated environment and embraces an automation-first approach to systems administration, leveraging Infrastructure as Code, scripting, and modern IT operational practices.

Responsibilities

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 to support 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.

Other duties as assigned.

Qualifications

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 services such as 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

Knowledge, Skills & Abilities

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

Resourceful problem-solver with a service-oriented mindset and the ability to thrive in a fast-paced environment

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

Physical Demands

Remaining in a stationary position, often standing, or sitting for prolonged periods

Communicating with others to exchange information

Environmental Conditions

General office environment

Noisy environments

Prototyping/Test Facilities

Manufacturing/Industrial Environments

Travel

Some travel may be required, up to 5%

Additional Requirements

Occasionally requires working weekends

Occasionally requires extended hours to support system maintenance, deployments, upgrades, and critical incidents

The salary range for this position is $108,700 to $127,900 for employees working onsite at our Alameda, CA headquarters. The range provided in this job posting represents the typical range or starting rate of candidates hired in California. Factors that maybe used to determine your actual salary may include your education, experience, knowledge, skills, ability and the market data for your work location, and a comparison to other employees already in the role.

#LI-Onsite

Kairos Power is committed to building a diverse workforce that reflects the communities where we do business. Kairos Power is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, gender, gender identity or expression, sexual orientation, national origin, genetics, disability, age, or veteran status. We actively welcome people of different experiences, abilities, and perspectives.

Kairos Power participates in E-Verify.

Candidates only, no recruiters or agencies please.

Note: You are applying for a position that is located in a facility that handles information that is subject to export control restrictions by the Department of Energy under 10 CFR Part 810. To work in this facility, you need to be authorized by the Department of Energy to access Part 810-controlled information. Foreign nationals who are citizens of countries that are not on the Department of Energy’s general authorization list (link below) are not permitted to work in our facility unless the Department of Energy issues an export control license to the company to permit that individual to have access to Part 810-controlled information. The following questions are intended to determine the licensing requirements that may apply. law.cornell.edu/cfr/text/10/appendix-A_to_part_810

About our Benefits

We know that we have some of the most talented and dedicated employees, and we believe in rewarding them accordingly. If you work here, full-time employees (excludes interns) expect to have access to the benefits below:

Competitive compensation packages

Medical, dental and vision benefits for employees and their dependents

Paid Vacation

401(k) and pre-tax health insurance, dependent care, and commuter benefits (FSA)

Languages

IT Systems Administrator

Company Overview

Job Summary

Responsibilities

Qualifications

Knowledge, Skills & Abilities

Physical Demands

Environmental Conditions

Travel

Additional Requirements

About our Benefits

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