IT Senior Network Engineer

Primary Location VIC - Melbourne - 655 Collins St Job Description Summary Lead, design and evolve Service Stream's national network environment. At Service Stream, we keep Australia connected through critical telecommunications, utilities, transport, defence and social infrastructure networks. We're seeking an experienced IT Senior Network Engineer to play a pivotal role in the design, operation and continuous improvement of our national network infrastructure. This is an opportunity for a technically strong and hands-on network professional to lead major network initiatives, influence future architecture decisions, and work across a complex multi-site enterprise environment. About the Role Location : Collins Street, Melbourne. Work type : Full time permanent. Working requirements: As this role supports our Defence contract, you must be an Australian Citizen and able to obtain and maintain a Defence Security Clearance. About the Role Reporting to the Head of Enterprise Technology, you will be responsible for the operation, support, optimisation and strategic development of Service Stream's network environment. You will act as a senior technical specialist, driving network reliability, security and performance while contributing to technology roadmaps, architecture decisions and major infrastructure projects. Working closely with internal stakeholders and technology vendors, you will ensure our networking services continue to meet current and future business requirements across a national footprint. Key Responsibilities Network Architecture & Design Design, implement and optimise enterprise network solutions across LAN, WAN, SD-WAN, cloud and security domains. Contribute to network architecture, scalability planning and technology roadmaps. Drive technical standards and best practices across network infrastructure. Network Operations & Support Maintain highly available, secure and resilient network services. Monitor performance and proactively identify opportunities for optimisation. Act as the senior escalation point for complex network incidents and troubleshooting activities. Project Delivery Lead the delivery of network infrastructure projects from planning through to implementation. Ensure projects are delivered on time, within budget and aligned to business objectives. Support business transformation initiatives through innovative network solutions. Security & Compliance Develop and maintain network security standards and controls. Ensure compliance with ITIL processes, change management frameworks and organisational policies. Support security uplift initiatives and risk mitigation activities. Vendor & Stakeholder Management Build strong relationships with vendors, service providers and internal stakeholders. Participate in cross-functional technology projects and business initiatives. Provide technical guidance and recommendations to leadership teams. Mentoring & Leadership Mentor and support junior engineers and wider technology team members. Promote knowledge sharing and technical excellence across the organisation. Contribute to a culture of continuous improvement and innovation. Documentation & Governance Maintain network diagrams, standards, procedures and technical documentation. Ensure configuration records and operational documentation remain accurate and current. Participate in on-call support and incident response activities as required. What You’ll Bring You are an experienced network professional who combines strong technical expertise with leadership capability and a continuous improvement mindset. You'll bring: 5+ years' experience in enterprise network engineering environments. Experience leading network projects and major technology initiatives. Strong expertise across LAN, WAN, SD-WAN, VPN, cloud networking and network security technologies. Hands-on experience with AWS and Azure networking services. Strong understanding of TCP/IP, routing, switching and network monitoring tools. Experience with technologies such as Cisco DNA, vManage, Wireshark, Nmap and Zscaler. Knowledge of VoIP, RADIUS, CASB and enterprise cloud connectivity. Strong analytical, troubleshooting and problem-solving skills. Excellent communication skills with the ability to engage technical and non-technical stakeholders. Experience mentoring engineers and contributing to high-performing teams. Qualifications Bachelor’s degree in information technology, Computer Science or a related discipline. Industry certifications highly regarded, including: Cisco CCNP or CCIE AWS Certified Advanced Networking Palo Alto PCNSE About Us Service Stream is an equal opportunity ASX-listed organisation that develops and operates Australia’s essential service networks across telecommunications, utilities, transport, defence and social infrastructure. Our work supports and connects communities across the nation. Benefits of working with us Growth – Career development and internal mobility opportunities across our diverse business. Discounts – Access to hundreds of retail and service discounts including Woolworths, JB Hi-Fi, Airbnb and Bupa. Paid leave – Parental, cultural, community service, study, corporate volunteering and purchased leave options. Culture – A workplace that values diversity, inclusion and celebrates excellence. How to apply Please submit your interest using the Apply button, where you will be directed to create a profile on our system. We celebrate diversity at Service Stream and welcome applications from Aboriginal and/or Torres Strait Islander peoples, people with disability or neurodivergence, and those from LGBTIQA+, Veteran or other diverse groups. Applications will not be accepted via email. If you require reasonable adjustments to the recruitment process, please email talent.corporate@servicestream.com.au. Department Engineering How to Apply If this sounds like you apply now to the Service Stream Recruitment Team via the online application button.