Lead Network Engineer (L3)

About the Role We are seeking an experienced L3 Lead Network Engineer to join a high-performing engineering team delivering enterprise-grade networking and cybersecurity solutions. This senior technical leadership role combines solution design, project delivery, customer consulting, and Level 3 support, serving as the highest point of technical escalation within the managed services team. You will lead complex technical engagements from discovery through implementation while driving engineering excellence, mentoring team members, and contributing to automation and continuous improvement initiatives.

About the Client You will be working with a leading Australian-owned Managed ICT and Cyber Security provider delivering enterprise-grade technology solutions to businesses across Australia. Operating with a strong customer-first philosophy, the organisation specialises in managed services, enterprise networking, cloud, security, and digital transformation. Committed to engineering excellence and industry best practices, they empower their team to deliver innovative solutions that simplify technology and create lasting value for customers.

Ideal Profile

Experience & Leadership

Minimum 5 years' experience in a senior engineering role within an MSP environment

Proven experience leading enterprise infrastructure projects from solution design through implementation

Strong customer-facing consulting experience with the ability to independently lead technical discussions

Experience producing Low Level Design (LLD) documentation and technical implementation plans

Demonstrated experience managing enterprise networking and security environments

Proven ability to mentor engineers and provide technical leadership

Ability to manage multiple priorities while working autonomously

Networking & Security Expertise

Strong experience with FortiGate, FortiManager, and FortiAnalyzer

Expertise in enterprise firewall implementation, secure networking, and SASE architecture

Strong knowledge of enterprise routing and switching, SD-WAN, MPLS, BGP, Layer 2 & Layer 3 networking

Experience with FortiSwitch, FortiAP, enterprise WAN, and multi-site network design

Experience supporting network segmentation and security best practices

Certifications

Fortinet NSC Level 7 (Secure Networking and/or SASE) certification is essential

Cisco CCNP Enterprise or Cisco CCNP Security certifications are highly regarded

Additional Technical Skills

Experience with enterprise SD-WAN and SASE implementations

Exposure to cloud networking and hybrid infrastructure

Experience with customer discovery workshops, solution validation, and technical presales

Knowledge of Palo Alto Networks, Netskope, Cisco Meraki, AWS Networking, and Autotask PSA is advantageous

Experience with automation, AI-assisted engineering tools, and infrastructure improvements is highly regarded

Soft Skills

Excellent written and verbal communication skills

Ability to explain complex technical concepts to both technical and non-technical audiences

Strong customer relationship management and consulting skills

High level of ownership, accountability, and initiative

Strong analytical and problem-solving abilities

Highly organised with excellent time management skills

Collaborative leadership style with a continuous improvement mindset

Responsibilities

• Technical Leadership

• Lead the technical delivery of enterprise networking and security projects from design through implementation

• Develop Low Level Designs (LLDs), implementation plans, deployment documentation, and technical standards

• Take ownership of engineering outcomes throughout the project lifecycle

• Drive engineering best practices across projects and managed services

• Presales & Solution Validation

• Support presales teams with technical solution validation and customer discovery workshops

• Review solution architectures for technical accuracy and delivery suitability

• Provide implementation effort estimates and technical risk assessments

• Support seamless transitions from presales through to project delivery

• Customer Engagement

• Act as the primary technical contact throughout project delivery

• Present technical solutions in clear business language to a variety of stakeholders

• Build trusted customer relationships through effective consultation and communication

• Participate in planning sessions, workshops, and solution reviews

• Project Delivery

• Lead the implementation of enterprise networking and security solutions

• Collaborate with project managers, presales consultants, and engineering teams to ensure successful delivery

• Ensure projects are delivered within scope, quality expectations, and agreed timelines

• Support project handovers into managed services environments

• Level 3 Support

• Provide the highest level of technical escalation across managed customer environments

• Troubleshoot complex networking and security incidents

• Perform root cause analysis and support cyber security incident response activities

• Lead enterprise firewall migration projects and mentor junior engineers during escalations

• Continuous Improvement

• Identify opportunities to enhance customer environments and internal engineering processes

• Contribute to automation initiatives, deployment templates, and AI-assisted engineering workflows

• Improve engineering documentation, operational standards, and technical knowledge resources

• Promote engineering excellence and standardisation across the business

• Team Collaboration

• Work closely with engineering, service desk, presales, and project teams

• Mentor junior engineers through technical leadership and knowledge sharing

• Participate in architecture discussions and contribute to ongoing capability development

How we take care of our team 💰 Get paid in Australian Dollars 🏥 Medical insurance from day one for you + spouse (or parents if unmarried) 🩺 Generous OPD coverage from doctor visits to all your medical needs 🏡 Home office setup allowance to build your ideal workspace 🌐 Internet allowance to keep you connected 💪 Gym & wellness allowance to stay fit and balanced 🎉 Work hard, play hard – regular team events & engagement activities 🧠 Diji Assist – Mental health & counseling support when you need it 📚 We invest in you – reimbursement for industry certifications 🗣️ Open-door culture – your ideas and feedback always matter 🌍 Flexible work – home or office, wherever you do your best work 🏆 Rewards & recognition that actually recognize you 🥳 Great christmas & financial year-end parties to unwind with your loved ones