Senior Network Administrator (hybrid)

Key Responsibilities

• Monitor and optimize network performance to ensure high availability and reliability.
• Design, implement, and maintain secure, scalable network infrastructure (LAN/WAN, Wireless, VPN, Data Center).
• Configuration and troubleshooting of network devices including routers, switches, firewalls, wireless access points, and OT network devices.
• Develop and maintain network diagrams, documentation, standard operating procedures (SOPs) and policies.
• Oversee network hardware/software upgrades and lifecycle management.
• Identify and mitigate network security risks and vulnerabilities.
• Administer firewalls (Fortinet preferred), NAC, SIEM, and VPN solutions.
• Monitor network traffic and logs for anomalies and threats.
• Collaborate closely with other IT teams (Systems, Applications, DevOps) to ensure secure integration of new technologies and services.
• Mentor junior administrators and serve as a subject matter expert.
• Lead strategic planning and technical discussions for network initiatives.
• Participate in an on-call rotation.

Qualifications

• 7+ years of progressive experience in network administration.
• Expertise in enterprise network design, implementation, and management.
• Strong knowledge of TCP/IP, BGP, 802.1X, DNS, DHCP, routing, switching, and other network protocols.
• Hands-on experience with firewalls, IDS/IPS, VPN, NAC.
• Proficiency in diagnostic and troubleshooting tools.
• Excellent analytical, problem-solving, documentation, and communication skills.
• Ability to work independently and collaboratively in a fast-paced environment.

Success in This Role Will Be Measured By

• Promoting adaptability, innovation, and continuous improvement.
• Demonstrating curiosity, resourcefulness, and initiative.
• Driving sustainable processes and organizational change.
• Communicating effectively across teams and levels.
• Building trusted relationships and fostering a culture of excellence.
• Applying strong business and technical acumen with attention to detail.

EQUAL OPPORTUNITY STATEMENT

It is the policy of Axcelis to provide equal opportunity in all areas of employment for all persons free from discrimination based on race, sex, religion, age, color, national origin, disability status, medical condition (including pregnancy), veteran status, sexual orientation, marital status, or any other characteristic protected by federal, state or local law. Axcelis will provide reasonable accommodation necessary to enable a disabled candidate or employee to perform the essential functions of the position, unless the accommodation would create an undue hardship for the Company.

U.S. BASE SALARY RANGE

This base salary range reflects the typical compensation for this role across U.S. locations. Our salary ranges are determined by role and level; individual pay is determined based on multiple factors, including job-related skills, experience, relevant education or training, work location, and internal equity. The range provides the opportunity for growth and progression as you develop within the role.