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Associate Systems Administrator

El Segundo, California, United States

Radiant is an El-Segundo, CA-based clean energy startup building a nuclear microreactor. A climate-friendly alternative to diesel generators, Radiant's Kaleidos 1MW microreactor will be the world's first portable, zero-emissions power source that works anywhere. We plan to test our development reactor by 2026 and if successful, it will be the first new commercial reactor design to achieve a fueled test in over 50 years. Radiant's goal is to bring one of the world's first factory-constructed microreactors to market. Our microreactor can bring power to remote parts of the world and provide backup power for life-saving applications in hospitals or disaster-relief scenarios. 

Associate Systems Administrator 

Radiant is seeking a motivated, early career Systems Administrator to manage and maintain our Microsoft-based infrastructure including on premise and cloud technologies. The ideal candidate is excited to apply skills and learn as much as possible across IT, from software rollouts and configurations, network and cluster maintenance, and compliance initiatives. You will ensure highly reliant and high performing IT systems to enable engineers to do their best work. This role requires strong communication skills, in-person collaboration, ability to handle high pressure situations with ease, and be proactive in finding opportunities for process improvements, better performance, and automation. You will join a small, high performing IT team that drives Radiant in running groundbreaking nuclear microreactor technology.    

Responsibilities and Duties:   

  • Maintaining enterprise software installations in tandem with the Software/Infrastructure teams, both on-prem and in AWS. 
  • Managing workstation configuration and software rollouts/updates with minimal disruption 
  • Define and enforce compliance and security policies in tandem with IT leadership. 
  • Own and improve the employee onboarding process, adding automation and efficiency wherever possible. 
  • Assist in server, network, and cluster maintenance, as well as monitoring and observability tasks.  
  • Engage with engineers to identify their needs and work with IT team to build solutions while staying in line with compliance requirements. 
  • Manage digital and physical access control systems, ensuring that engineers have access to what they need when they need it. 
  • Maintenance and improvement of conferencing products and equipment. 
  • Writing and maintaining both internal and user-facing documentation. 
  • Write scripts to automate common tasks, such as user and group management.  

Required Skills and Qualifications: 

  • 2+ years in IT systems administration.  
  • Experience in managing Microsoft technologies and environment.  
  • Experience with Office 365, Microsoft Entra ID (formerly Azure AD), and/or Intune. 
  • Proficiency in PowerShell or similar scripting language.  
  • Excellent and effective verbal and written communication. 

Desired Skills and Qualifications: 

  • Experience with AWS and Azure cloud technologies.  
  • Experience with troubleshooting macOS and Linux. 
  • Desire to go the extra mile and leave no stone unturned when troubleshooting and reaching solutions. 
  • Eager to continuously learn new technologies with an innate sense of curiosity. 
  • Must have great attention to detail in both issue resolution and proactive follow up in process improvement. 

Additional Requirements: 

  • Must be willing to work extended hours and weekends as necessary to achieve company goals. 
  • Must work 100% onsite at El Segundo HQ. 

Employee Benefits for Eligible Employees:

  • Stock: Substantial incentive stock plan for all full time, salaried employees.
  • Medical: 100% up to base silver level plan for employee + 50% dependents, offers up to Platinum plans.
  • One Medical: Sponsored memberships for employees and their dependents. 
  • Vision: 100% top tier plan coverage + 50% for dependents.
  • Dental: 100% top tier plan coverage, orthodontia extra, 50% for dependents.
  • Voluntary Life, Accident, Hospital, Critical Illness, Commuter and FSA are offered as employee contributed benefits.
  • Free snacks and drinks onsite. 
  • Flexible PTO policy.

We are an equal opportunity employer and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity or expression, pregnancy, age, national origin, disability status, genetic information, protected veteran status, or any other characteristic protected by law.

Unfortunately, we are unable to provide visa sponsorship at this time. This position involves access to technology that is subject to U.S. export controls. Any job offer made will be contingent upon the applicant’s capacity to serve in compliance with U.S. export controls.

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