Network Security Specialist

IREN is a leading AI Cloud Service Provider, delivering large-scale GPU clusters for AI training and inference. IREN’s vertically integrated platform is underpinned by its expansive portfolio of grid-connected land and data centers in renewable-rich regions across the U.S. and Canada. With 100% renewable energy, we build, own and operate our data centers and take pride in being at the forefront of sustainable solutions for the ever-evolving applications of high-performance compute. We believe that human progress is invaluable, but it should be done in the right way – responsibly, sustainably and having a positive impact on the communities we operate in. Job Requirements Bachelor’s degree in Computer Science, Information Security, or a related field. 3+ years of experience in a network security or cybersecurity role, preferably in a data center or high-availability environment. Strong understanding of network protocols, routing, switching, and firewall architectures. Hands‑on experience with security technologies such as Cisco ASA, Fortinet, Palo Alto Networks, IDS/IPS, SIEM platforms, and endpoint protection solutions. Familiarity with compliance frameworks such as ISO 27001, NIST, HIPAA, or SOC 2. Excellent problem‑solving skills and attention to detail. Strong communication skills, both verbal and written. Preferred Certifications Certified Information Systems Security Professional (CISSP) Cisco Certified Network Associate (CCNA) Security or CCNP Security CompTIA Security+, CySA+, or CASP+ Certified Ethical Hacker (CEH) Other Important Requirements Pre-employment screening, including background check and substance testing may be required according to company policies. Must provide own steel‑toed work boots; other PPE will be supplied. Must be able to reliably commute to the work site daily or have plans to relocate before starting work. Job Responsibilities Design and implement secure network infrastructure for Offices, Data Centers, and cloud solutions, ensuring secure communications between systems and customers. Monitor, detect, and respond to network security incidents using SIEM tools, firewalls, intrusion detection systems (IDS/IPS), and other monitoring technologies. Manage and maintain ACL’s for AWS, Tailscale, or other ACL based infrastructure. Manage firewalls and VPNs, including rule set maintenance, patching, and policy enforcement. Conduct regular vulnerability assessments and penetration tests; mitigate identified risks and implement corrective measures. Maintain and update network security configurations and documentation; enforce best practices and regulatory compliance (e.g., ISO 27001, SOC 2, PCI‑DSS). Collaborate with internal teams, including network engineers, system administrators, and client service teams, to align security requirements with business operations. Stay current on emerging threats, vulnerabilities, and security technologies to proactively protect company and customer assets. Assist in developing and maintaining disaster recovery and incident response plans. Provide security awareness training and guidance to internal stakeholders. Enforce 2FA authentication practices for access to high security systems. Benefits Health Insurance Disability Insurance Life Insurance Vision care & Dental care 401k Retirement Plan We value diverse perspectives and believe that skills can be developed. If you’re passionate about this role, we want to hear from you — whether you meet every criteria or not. Your unique experiences might be exactly what we need! IE US Operations Inc., the employing entity and proud member of the IREN group is an equal opportunity employer that is committed to creating an inclusive workplace. We are committed to evaluating qualified applicants and do not discriminate against protected characteristics under applicable legislation. This job will remain posted until filled. While we appreciate all applications we receive, we are only able to contact candidates under consideration. By applying for this position and submitting your resume and application materials, you consent to the processing of your personal information in accordance with our Job Applicant Privacy Statement available on our website at #J-18808-Ljbffr Iris Energy