Role Title: Senior Service Engineer | Lead Network Security Engineer | Senior Engineer – Secure Network Design Job Type: Full time - Perm Hybrid : 2-3days Sydney offices A well-regarded financial services organisation is looking for a skilled Network Security Engineer with deep expertise in firewalls (Checkpoint, Fortinet, or Juniper SRX) and load balancing technologies (F5) to join their team in a permanent role. We're partnering with a leading financial services organisation that is expanding their Network Security Design team and seeking a Senior Network Security Engineer to play a key role in shaping the architecture and delivery of secure, resilient network solutions. In this permanent opportunity, you’ll join a high-performing, fast-paced team responsible for designing complex network security solutions across a broad portfolio of business-critical projects. This is a highly collaborative role, working closely with both business and technical stakeholders to translate requirements into scalable, secure designs. Key Responsibilities: Collaborate with business and technical stakeholders to gather requirements and propose secure networking solutions. Lead the design of scalable, secure network infrastructure and contribute to strategic roadmaps and solution patterns. Document technical designs, create blueprints, and provide ongoing support during deployment. Provide expertise across both project and operational contexts, including implementation and troubleshooting. Design network security solutions, patterns, and blueprints to support a range of project initiatives and business requirements Evaluate and recommend firewall, load balancing, and other security-focused technologies. Ensure designs support best practices around performance, availability, and security. What You’ll Bring: Tertiary qualifications in a relevant discipline and/or industry/Vendor certifications Proven experience in network security engineering and solution design in complex enterprise environments. Proven expertise in designing, configuring, deploying, and troubleshooting complex network security solutions, with advanced hands-on experience across enterprise firewalls (Checkpoint, Juniper SRX, or Fortinet) and F 5 load balancers , including L TM, GTM, APM, and ASM modules. Strong understanding of routing and switching protocols (BGP, OSPF) Familiarity with cloud networking in AWS and/or Azure . Experience with network automation using Python scripts and/or using Ansible . Proven experience in both project-based and operational network support roles Excellent problem-solving and analytical skills Strong communication and stakeholder engagement abilities Confident and professional presentation skills Demonstrated mentoring and knowledge-sharing capabilities Experience leading the technical delivery of network projects from design through to implementation For further information on this role or to confidentially apply, please contact Alana Moussa on Only WORD FORMAT resumes will be accepted.