System Administrator

TigerByte Cyber; Hauppauge (NY); Hybrid; USD 90,000 - 130,000; Full time

Benefits offered by this job

Medical and dental insurance

15 days PTO annually

401(k) with employer match

Certification and training reimburse

On-call compensation

Job summary

TigerByte Cyber is seeking a Systems Administrator II to own and operate the company’s IT infrastructure end-to-end from day one. You’ll administer Windows and Ubuntu servers, Docker containers, and VMs, while coordinating GCC High Azure Government Cloud security controls and compliance activities.

The role supports edge hardware integrations and collaborates with engineering on enterprise systems. As the sole IT resource, you’ll own proactive communication, incident response, and a planned

Qualifications

• Hands-on IT infrastructure experience with Windows and Linux.
• Experience administering Azure GCC High and VMs.
• Willingness to obtain/maintain a DoD security clearance.
• Ability to own IT infrastructure end-to-end with minimal supervision.

Responsibilities

• Own and operate the full IT infrastructure as the sole administrator.
• Maintain Ubuntu Linux servers, Windows systems, VMs, and Docker containers.
• Administer the GCC High Azure tenant and enforce CMMC/NIST controls.
• Support on-site hardware work and incident response, including edge devices when needed.
• Coordinate with engineering and participate in after-hours on-call rotations.

Skills

Windows & Linux admin

Azure Government Cloud

DoD security clearance eligibility

Independent ownership

Tools

Docker

GitLab CI/CD

VMs

Ubuntu Linux

Azure GCC High

Job description

Hauppauge, Long Island, NY | Full-Time | Remote initially, transitioning to Hybrid (2 days/week onsite)

About TigerByte Cyber

TigerByte Cyber is a small, fast-growing defense and commercial technology company (~10 employees) building edge cybersecurity hardware and AI Governance Software. The team operates in a highly regulated environment (CMMC, NIST SP 800-171) and works closely with government and defense-adjacent programs.

Why This Role Is Open

The company's sole IT/Systems Administrator has resigned and given one month's notice. This is a backfill for a critical, single-person function — the incoming hire will be the sole owner of IT infrastructure going forward. The outgoing admin will remain available on a part-time contract basis after departure to support knowledge transfer.

Position Overview

TigerByte Cyber is looking for a Systems Administrator II to own and operate the company's IT infrastructure end-to-end. This is a hands-on, do-it-all role for someone who wants real ownership early in their career — administering a Linux/Windows/Azure environment, supporting CMMC/NIST compliance, and occasionally working alongside engineering teams on edge hardware (FPGA/GPU) connectivity. Prior experience with that specialized hardware is not required and will be trained; what matters most is the ability to take ownership, communicate proactively, and operate independently as the company's only IT resource.

Key Responsibilities

• Own and administer the company's full IT infrastructure as the sole Systems Administrator.
• Administer Ubuntu Linux servers, VMs, and Docker containers running core infrastructure.
• Administer the Microsoft Azure Government Community Cloud (GCC High) tenant, including endpoint management, device/user administration, monitoring, and CMMC compliance controls.
• Maintain secure network services: VPN, network segmentation, firewalls, and DNS.
• Support CMMC and NIST SP 800-171 compliance activities using existing company templates and policies (no need to build a compliance program from scratch).
• Occasionally connect production servers to engineering's edge hardware devices (FPGA, GPU boards) — full training provided, no prior enterprise FPGA/GPU tooling experience required.
• Support the GitLab-based development environment used by the engineering team; deep enterprise GitLab administration is a plus, not a requirement.
• Communicate proactively — flag issues and open questions immediately rather than waiting for the next scheduled check-in.
• Participate in an on-call rotation and respond to after-hours infrastructure issues as needed.
• Support the planned physical relocation of the company's server rack (currently in Hanover, NH) to the new Hauppauge, NY office.
• Absorb hands-on knowledge transfer from the outgoing Systems Administrator during the transition period.

Required Qualifications

• Hands-on IT infrastructure experience — internship, first professional role, or substantial personal/academic project experience is acceptable. New graduates are welcome to apply.
• Working knowledge of both Windows and Linux system administration.
• Familiarity with Microsoft Azure tenant administration, virtual machines, and Docker containers.
• U.S. Citizenship required. No visa sponsorship or Green Card candidates (company policy, non-negotiable).
• Willingness and eligibility to obtain and maintain a U.S. DoD security clearance — the company will sponsor and fund the clearance process for the right candidate; an existing clearance is a plus, not a requirement.
• Demonstrated self-starter mentality — comfortable being the sole owner of IT infrastructure, proactive in communication, and able to work independently with limited day-to-day oversight.
• Willingness to work on-site in Hauppauge, NY approximately 2 days/week once the office opens (targeted ~November), and to be reachable for after-hours on-call support.

Preferred Qualifications

• Existing DoD Secret or Top Secret clearance.
• Experience in a regulated/compliance-heavy environment (CMMC, NIST SP 800-171, SOC 2, HIPAA, or similar).
• Hobbyist or professional exposure to FPGA, GPU, or embedded hardware platforms — experience with Arduino or Raspberry Pi is considered a strong, relevant analog.
• Familiarity with GitLab and CI/CD pipelines.
• Background in aerospace, healthcare, finance, or other regulated industries.
• Target compensation: competitive, market-aligned base salary (final band to be confirmed prior to posting).
• 100% employer-paid medical and dental coverage, effective from day one.
• 15 days PTO annually — accrues over time but is usable immediately, no waiting period.
• 401(k) with employer match.
• Certification and training reimbursement.
• Standard 90-day introductory period applies; core benefits remain active from the start date.

Location & Work Arrangement

This role is based out of TigerByte Cyber's new Hauppauge, Long Island office. The expectation is approximately 2 days/week on-site, with additional on-site time as needed for hands-on hardware work, deployments, or incident response

Additional Job Application Terms

This job is part of LinkedIn’s Full-Service Hiring beta program. Eligibility is limited to candidates located in and performing services in the United States, excluding those based in Alaska, Hawaii, Nevada, South Carolina, or West Virginia.

We’re committed to making our hiring process as smooth and timely as possible, and we understand that waiting to hear back can add to the anticipation. If you’re a potential fit, our team will reach out within two weeks to progress you to the next stage. If you don’t hear from us in that time, we encourage you to explore other opportunities with our team in the future, and we wish you the very best in your job search.