Company Description

Unwin Company is a respected federal government contractor supporting the Department of Energy (DOE) with a long-standing tradition of service and professionalism. Unwin offers a very competitive compensation package that includes eligibility to participate in a company matching retirement savings plan, group medical insurance, health savings account, ancillary insurance and paid time off. This position will also be eligible for an annual performance bonus program.

Role Description

Unwin Company is looking for a Senior Systems Administrator to join our small, highly capable, in-house IT team. This is a hands-on role where you’ll have real ownership of systems, direct impact on users, and a voice in how our environment evolves.

What You’ll Do:

• Support and maintain our Windows and Linux server environments

• Administer Active Directory, Exchange, and Microsoft 365

• Manage VMware, storage systems, switches, and firewalls

• Troubleshoot user issues and provide responsive support

• Oversee system lifecycle: deployment, patching, upgrades, and retirement

• Maintain hardware and software inventory

• Support VoIP systems

• Monitor logs, alerts, and security advisories

• Work with vendors and support teams

• Evaluate and recommend new tools and technologies

• Create and improve documentation, standards, and processes

• Support remote users with secure tools

Requirements:

• 5+ years of systems or network administration experience

• Strong troubleshooting and problem ownership skills

• Experience with Windows and Linux systems, networking, and firewalls

• Comfortable working independently and as part of a team

• Clear written and verbal communication skills

• Positive, curious mindset and willingness to learn

• Ability to obtain a DOE Q security clearance

Nice to Have (but not required):

• Active security clearance

• Palo Alto firewall experience

• Scripting or automation (PowerShell, Bash, etc.)

• Web application development and SQL Server experience

• OS deployment and software packaging

• PKI (PIV/CAC)

• Familiarity with NIST, DISA, CMMC, or similar standards

Unwin Company jobs

Senior System Administrator