Axcelis Technologies is seeking a highly skilled Senior Network Administrator to join our dynamic IT team. This critical role will require advanced network administration to monitor, design, implement, and protect our enterprise infrastructure. This position will be instrumental in ensuring the performance, availability, and security of our network environment—spanning architecture, operations, and incident response. We’re looking for a hands-on technical leader who thrives at the intersection of traditional networking and modern cybersecurity practices. If you’re passionate about defending complex systems and driving innovation, this is your opportunity to make a lasting impact. At Axcelis, you’ll be part of a forward-thinking team in the semiconductor industry, where innovation, collaboration, and continuous improvement are core values. You’ll help shape our network strategy in a high-tech, fast-paced environment. Axcelis has been recognized by Forbes as one of the Best Small/Mid-Sized Companies for four consecutive years.