Systems Administrator

About Us

At Antares our long-term mission is to make clean energy abundant from Earth to the Asteroid Belt. Were fueled by the belief that advanced nuclear energy can strengthen our military solve the climate crisis elevate global living standards and expand humanitys presence in outer space. To achieve our mission were building mass-producible inherently safe deployable microreactors that can be used terrestrially underwater and in space.

Formed in 2023 the Antares team hails from SpaceX The White House MIT Rigetti Computing The Air Force General Atomics Relativity Space Ursa Major and National Laboratories like Los Alamos Idaho and Oak Ridge. Antares has raised over $130M in venture capital from top-tier investors and has over $13M in government funding.

About the Role

As an early member of Antares IT operations function you will support the infrastructure required for software engineering manufacturing and business teams to move quickly and securely. You will work hands-on across endpoints identity and access management network infrastructure collaboration tools conference rooms cloud services and internal applications while helping maintain the reliability and security expected in a regulated government-facing environment.

The ideal candidate is a technically versatile junior systems administrator who can troubleshoot quickly document clearly and balance operational rigor with speed. This person will be comfortable supporting both technical and non-technical users working onsite with engineering and manufacturing teams and improving repeatable processes as Antares scales.

Roles & Responsibilities:

• Provision configure and manage user accounts endpoints groups licenses and access controls across enterprise systems.

• Administer and maintain the Microsoft 365 environment including Entra ID Intune Defender Exchange Teams SharePoint and related admin workflows.

• Deploy configure maintain patch and decommission Windows and macOS endpoints; support Linux systems and engineering workstations as needed.

• Support day-to-day IT operations by troubleshooting workstations peripherals servers identity issues VPN connectivity conference rooms and network incidents.

• Maintain and troubleshoot network infrastructure including LAN/WAN WiFi VPN DNS DHCP routing VLANs switching cabling and port-security/NAC concepts.

• Configure and support collaboration and conference-room technologies including Microsoft Teams Zoom displays cameras audio systems and room scheduling equipment.

• Manage endpoint lifecycle processes including imaging enrollment device preparation patching updates inventory asset tracking and secure disposal.

• Administer endpoint protection security certificates encryption device compliance policies and patch management processes.

• Deploy maintain and secure in-house and cloud applications used by engineering operations manufacturing and business teams.

• Deploy and maintain PSA/RMM ticketing monitoring automation and remote-management tools to improve visibility and response times.

• Document IT procedures configurations access decisions support runbooks and recurring workflows in a way that supports compliance and audit readiness.

• Assist with regulatory and customer compliance efforts including logging reporting evidence collection access reviews and audit preparation.

• Support IT operations in manufacturing lab shop-floor or regulated environments partnering with engineering facilities security and operations as needed.

Basic Qualifications:

• 2 years of hands-on IT support systems administration endpoint administration or equivalent technical experience.

• Working knowledge of Microsoft 365 administration including Entra ID/Azure AD Intune Defender device enrollment user lifecycle management and access controls.

Preferred Skills and Experience:

• Experience supporting and troubleshooting Windows and macOS endpoints in a business environment.

• Solid networking fundamentals including TCP/IP DNS DHCP routing VLANs VPN WiFi switching and basic firewall concepts.

• Proficiency with PowerShell or similar scripting/automation concepts plus comfort using command-line diagnostic tools.

• Demonstrated troubleshooting ability across workstations peripherals collaboration tools network connectivity identity and business applications.

• Strong documentation habits and attention to compliance configuration accuracy and repeatable process execution.

• Experience with GCC High defense government-contracting export-controlled or other compliance-driven IT environments.

• Experience with Linux systems Azure and/or AWS virtualization and cloud-hosted infrastructure or applications.

• Hands-on experience with Ubiquiti/UniFi or similar switches firewalls wireless access points cameras physical access controls and management applications.

• Experience with copper and fiber switching infrastructure wireless deployment/tuning NAC port security encryption protocols keys and certificates.

• Experience with ticketing PSA RMM monitoring patch-management vulnerability-management or endpoint-management platforms.

• Experience supporting manufacturing facilities labs engineering teams or mixed office/shop-floor environments.

• CompTIA A Network Security Microsoft 365/Endpoint Administrator Azure or equivalent certifications are a plus but not required.

Additional Requirements:

• Ability to work long hours and weekends as necessary to support critical milestones outages hardware moves onboarding surges audits or facility needs.

Culture

At Antares we like to specifically tie each role to our founding documents set of valueshere are the top five cultural values we think you should believe at your core to be successful:

• Think in Systems - Energy and Defense are complex ecosystems with numerous stakeholders with competing priorities conflicting policies perverse incentives and emergent and path-dependent properties. First principles thinking alone is insufficient. Think probabilistically and then take action. If you want to be certain then you are apt to be obsolete. Over-optimizing the components often degrades the system

• Obsess over the End User - The customer and end user are often not the same. We will never build globally competitive commercial products if we lose sight of our end users and their entire interaction with the product life cycle

• Be Unconstrained by Convention - Our only limits are the laws of physics. Many even experts will say what we are working on is impossible. They said the same about SpaceX reusing rockets. Generationally impactful companies by definition must accomplish the seemingly impossible. If it were easy it would have already been done. Never shy away from a solution because it has never been tried before and never choose to do something because thats how its always been done

• Go Where the Work Is - Never miss a chance to meet a customer user or stakeholder face to face even if that means hopping on a plane. If you cant make it find a teammate who can channel your intentions and go in your place. Deep work can be done from anywhere but we believe teams are built in person and aim to maximize our time together

• Operate in the Grey - Embrace nuance in pursuit of truth. Question every fundamental assumption

Equal Opportunity

Antares is an Equal Opportunity Employer. Employment decisions are based solely on merit competence and qualifications without regard to race color religion gender national origin/ethnicity veteran status disability status age sexual orientation gender identity marital status mental or physical disability or any other legally protected status.

ITAR Requirements

To conform to U.S. Government export regulations applicant must be a (i) U.S. citizen or national (ii) U.S. lawful permanent resident (aka green card holder) (iii) Refugee under 8 U.S.C. 1157 or (iv) Asylee under 8 U.S.C. 1158 or be eligible to obtain the required authorizations from the U.S. Department of State. Learn more about the ITAR here.

Required Experience:

Unclear Seniority