" \u003cdiv class=\"ja-job-details\"\u003e \u003ch2 class=\"title\"\u003eSenior Infrastructure Engineer / Senior Network Engineer (F5 Specialist)\u003c/h2\u003e \u003cdiv class=\"meta\"\u003e \u003cul class=\"classifications\"\u003e \u003cli data-id=\"16937\"\u003e IT \u0026amp; Telecomms \u003c/li\u003e \u003cli data-id=\"16938\"\u003e IT - Other \u003c/li\u003e \u003cli data-id=\"16939\"\u003e Sydney \u003c/li\u003e \u003cli data-id=\"16940\"\u003e Contract or Temp \u003c/li\u003e \u003c/ul\u003e \u003cp class=\"date-posted\"\u003e 19/10/2026 \u003c/p\u003e \u003c/div\u003e \u003cul class=\"bullet-points\"\u003e \u003cli\u003eSenior Network Engineer (F5 Specialist) - 12 month contract | Sydney, NSW\u003c/li\u003e \u003cli\u003eOpportunity to work with a Major Australian Government agency\u003c/li\u003e \u003cli\u003eMust be able to obtain a Negative Vetting Level 1 (NV1) security clearance\u003c/li\u003e \u003c/ul\u003e \u003cdiv class=\"description\"\u003e \u003cstrong\u003eSenior Network Engineer (F5 Specialist)\u003c/strong\u003e\u003cbr\u003e\u003cem\u003e12-month contract with potential extensions\u003c/em\u003e\u003cbr\u003e\u003cem\u003eHybrid - Sydney, NSW\u003c/em\u003e\u003cbr\u003e\u003cbr\u003eAltitude is seeking an experienced Senior Network Engineer (F5 Specialist) to work with a major Australian Government agency.\u003cbr\u003e\u003cbr\u003eIn this role, your F5 expertise will help keep critical services secure, resilient and available to millions of Australians every day. Sitting within the Data Centre Network team, you will take technical ownership of an enterprise application delivery environment, leading platform upgrades, performance optimisation and cyber security uplift while sharing your knowledge with the wider team.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eKey Responsibilities:\u003c/strong\u003e\u003cbr\u003e \u003cul\u003e \u003cli\u003eLead the administration, engineering and operational support of enterprise F5 platforms, including LTM, DNS/GTM and APM services\u003c/li\u003e \u003cli\u003eDesign, implement and maintain F5 configurations including virtual servers, pools, monitors, SSL/TLS profiles, traffic policies, iRules, certificates and security controls\u003c/li\u003e \u003cli\u003eInvestigate and resolve complex platform, application and network performance issues through packet analysis, root cause investigation and system log analysis\u003c/li\u003e \u003cli\u003eLead software upgrades, vulnerability remediation, hardware lifecycle management and cyber security uplift activities\u003c/li\u003e \u003cli\u003eCollaborate with vendors and internal technical teams, and transfer knowledge to staff through documentation, coaching and operational handovers.\u003c/li\u003e \u003c/ul\u003e \u003cstrong\u003eKey Requirements:\u003c/strong\u003e\u003cbr\u003e \u003cul\u003e \u003cli\u003eMust be able to obtain a Negative Vetting Level 1 (NV1) security clearance\u003c/li\u003e \u003cli\u003eExpert level experience administering and troubleshooting F5 platforms in large, complex enterprise environments, with extensive hands on experience across LTM, DNS/GTM and APM technologies\u003c/li\u003e \u003cli\u003eStrong understanding of F5 traffic management architecture, SSL offloading, load balancing methodologies, authentication services and application delivery optimisation\u003c/li\u003e \u003cli\u003eExperience managing certificates, SSL/TLS configurations, iRules, high availability clusters and disaster recovery solutions\u003c/li\u003e \u003cli\u003eAdvanced knowledge of UNIX/Linux operating systems, command line diagnostics, packet capture analysis and log investigation\u003c/li\u003e \u003cli\u003eStrong knowledge of TCP/IP networking, routing, switching, VLANs, firewalls, segmentation and data centre networking.\u003c/li\u003e \u003c/ul\u003e \u003cstrong\u003eHow to apply:\u003c/strong\u003e\u003cbr\u003e\u003cbr\u003ePlease apply now following the application process. Remember to include your email address and contact phone number so we can contact you regarding your application.\u003cbr\u003e\u003cbr\u003eInterested in the role but don\u0027t have an updated CV? Let\u0027s have a chat regardless as we could assist you in preparing your CV for your next opportunity. Call us on 03 7057 7250 for a confidential conversation.\u003cbr\u003e\u003cbr\u003e\u003cem\u003eAltitude is an equal opportunity employer that actively embraces diversity in its workforce through accurate community representation of gender, culture, thought, and work arrangements.\u003c/em\u003e \u003c/div\u003e \u003cdiv class=\"apply\"\u003e \u003ca class=\"back-link\" href=\"#\" title=\"Back to search results\"\u003eBack to search results\u003c/a\u003e \u003cinput type=\"button\" class=\"ja-button\" data-job-id=\"2003769\" value=\"Apply Now\" title=\"Apply Now\" /\u003e \u003c/div\u003e \u003c/div\u003e "