Systems Administrator

Nuclir; New York (NY); On-site; USD 90,000 - 120,000; Full time

Benefits offered by this job

Health insurance

401(k) with employer match

Paid time off

Professional development budget

Job summary

Nuclir is seeking a Systems Administrator to maintain the stability, security, and scalability of our IT infrastructure. You will manage on‑premise servers, cloud platforms, and enterprise applications to keep operations running smoothly.

Collaborating with IT and engineering teams, you will deploy updates, manage access controls, and optimize system performance while building resilient infrastructure that supports internal teams.

Qualifications

• 3–5 years of hands-on system administration experience.
• Proficiency with Windows & Linux server environments.
• Strong experience in Active Directory, DNS, DHCP, and group policies.
• Knowledge of virtualization platforms (VMware/Hyper-V).
• Familiarity with AWS or Azure cloud administration.
• Strong troubleshooting and documentation skills.

Responsibilities

• Ensure IT infrastructure remains stable, secure, and efficient.
• Monitor, troubleshoot, and optimize system performance.
• Deploy updates, manage access controls, and support day-to-day IT operations.
• Contribute to disaster recovery planning, backups, and system migrations.

Skills

Windows Server

Linux Server

Active Directory

DNS

DHCP

VMware

Hyper-V

AWS

Azure

Troubleshooting

Documentation

Tools

VMware

Hyper-V

AWS

Azure

Active Directory

Job description

We are seeking a Systems Administrator to ensure the stability, security, and scalability of our IT infrastructure. You will manage a mix of on-premise servers, cloud platforms, and enterprise applications to keep business operations running smoothly. Your role will involve proactive monitoring, troubleshooting, and optimizing systems performance.

Collaboration is key in this role. You will work alongside the IT and engineering teams to implement new technologies, streamline workflows, and strengthen system resilience. From deploying updates to managing user accounts and access controls, you will be at the center of our technology ecosystem.

Beyond daily maintenance, you’ll take part in disaster recovery planning, backup management, and system migrations. This position is ideal for someone who thrives on problem-solving and enjoys building reliable infrastructure that empowers teams to perform at their best.

What you’ll bring

As a Systems Administrator, you’ll ensure that our IT infrastructure remains stable, secure, and efficient. You should be comfortable managing servers, networks, and cloud platforms while troubleshooting issues quickly and supporting the day-to-day needs of internal teams.

• 3–5 years of hands-on system administration experience.
• Proficiency with Windows & Linux server environments.
• Strong experience in Active Directory, DNS, DHCP, and group policies.
• Knowledge of virtualization platforms (VMware/Hyper-V).
• Familiarity with AWS or Azure cloud administration.
• Strong troubleshooting and documentation skills.

Benefits

We believe reliable systems start with empowered people. Along with a competitive salary, you’ll enjoy benefits that support professional development, health, and long-term growth.

• Competitive salary + health insurance.
• 401(k) retirement plan with employer match.
• Paid time off + public holidays.
• Professional development budget (certifications like AWS, RHCE, etc.).
• Collaborative IT team with growth opportunities.