Senior Network Administrator

About LiquidPiston
LiquidPiston is a technology-driven engineering company developing advanced rotary engines based on a new thermodynamic cycle. Our team of ~40 engineers and professionals is solving some of the most challenging problems in modern propulsion.

We're seeking a Senior Network Administrator to manage and enhance our IT infrastructure, ensuring secure, reliable connectivity across our hybrid Windows and Linux environment. This is a hands-on role for someone who enjoys working independently, supporting a high-performing engineering team, and building resilient systems from the ground up. This position will operate as a one-person IT shop, responsible for all aspects of IT and network management across the organization.
Key Responsibilities

• Design, implement, and maintain a secure and scalable network infrastructure, including routers, switches, firewalls, and wireless access points
• Monitor network performance, troubleshoot connectivity issues, and optimize reliability and uptime
• Manage and support Windows and Linux servers, virtual environments, and user workstations
• Oversee Active Directory, DNS, DHCP, and Microsoft 365 administration
• Collaborate with leadership to identify, procure, and deploy IT and networking assets
• Ensure compliance with cybersecurity frameworks, including NIST 800-171 and CMMC 2.0
• Implement and maintain network segmentation, VPNs, and encryption protocols
• Manage data backup, disaster recovery, and endpoint protection systems
• Support licensing and connectivity for engineering tools such as SolidWorks, ANSYS, and MATLAB
• Develop automation scripts (e.g., Bash, PowerShell, or Ansible) to improve system efficiency

Required Qualifications

• Bachelor's degree in Information Technology, Computer Science, or a related field (MS preferred)
• 5+ years of experience managing enterprise or small-company IT/network infrastructure
• Strong proficiency in both Linux and Windows Server environments
• In-depth understanding of TCP/IP, VLANs, VPNs, firewalls, routing, and switching
• Hands-on experience with Microsoft 365, Active Directory, Exchange, DNS, and SSO
• Familiarity with NIST 800-171 / CMMC 2.0 compliance requirements
• Proven ability to work independently as a one-person IT department
• Excellent troubleshooting, communication, and documentation skills

Preferred Qualifications

• Networking certifications such as CCNA, CompTIA Network+, or equivalent
• Experience managing High-Performance Computing (HPC) or lab network environments
• Familiarity with containerization (Docker, Kubernetes) or DevOps workflows
• Scripting experience (Python, Bash, PowerShell, or Ansible) for automation and system management
• Knowledge of MySQL or relational database management

Benefits & Perks

• Flexible PTO: We value work-life balance and encourage time to rest and recharge.
• Health & Wellness: Comprehensive medical, dental, and vision coverage-you choose what works best for you.
• Equity Participation: Permanent employees receive RSUs (Restricted Stock Units).
• 401(k) Match: We offer a 401k w/100% matching up to 3% of your salary and then 50% of contributions between 3-5%
• Career Growth: Ongoing training, mentorship, and learning opportunities to accelerate your growth.

Our Culture
At LiquidPiston, we embrace challenges, move fast, and celebrate curiosity. Our team thrives on collaboration, creativity, and perseverance. We understand that innovation involves risk-and we're not afraid to fail as we move forward.
Equal Opportunity Employer
LiquidPiston, Inc. is proud to be an Equal Opportunity Employer. Qualified applicants will not be discriminated against, and receive consideration for employment without regard to race, color, religion, gender, sexual orientation, gender identity, national origin, or protected veteran status or disability.
All offers of employment at LiquidPiston are contingent upon successful completion of a pre-employment background check and drug screening.