Senior Network Engineer (Fortinet SME)

Mode Talent Pty Ltd; Sydney; Hybrid; AUD 166,000 - 240,000; Full time

Benefits offered by this job

Path to permanency

Fortinet SME role

Exposure to industry leaders

Training and certifications

Large-scale enterprise projects

Job summary

Mode Talent Pty Ltd is seeking a senior Network Security Engineer with Fortinet expertise to lead OT/industrial security projects for a major enterprise. The role is client‑facing and will design and deliver secure network solutions across enterprise and OT environments, including Fortinet firewalls and related platforms.

This hybrid Sydney role offers a 3‑day onsite pattern, an initial 6‑month contract with view to permanency, and strong career development support with training and

Qualifications

• Senior Fortinet-focused role in OT/industrial environments.
• Client-facing consulting experience in enterprise settings.
• Ability to translate business requirements into secure network designs.

Responsibilities

• Deliver customer-facing network and security solutions across enterprise and OT environments.
• Act as a Fortinet SME across firewalls and security platforms, including policy, configuration, optimization and upgrades.
• Engage with clients to translate business needs into technical designs and implementation plans.
• Lead and contribute to projects including migrations, upgrades, hardening and segmentation.
• Produce clear documentation, runbooks and standards for OT and IT networks.

Skills

Fortinet

OT/Industrial

Client-facing

FortiGate

FortiManager

FortiAnalyzer

Networking concepts

Cisco experience

Tools

Fortinet FortiGate

Fortinet FortiManager

Fortinet FortiAnalyzer

Cisco IOS

Job description

Senior Fortinet Network Security Engineer role delivering client-facing OT solutions for a major enterprise. 3 days onsite in Mascot.

• Senior Fortinet SME role focused on OT and industrial environments
• Client-facing consulting position with a major enterprise customer
• Clear pathway to permanency with strong career development support

Network Security Engineer – Fortinet SME (OT / Industrial Environments)
Location: Sydney (Mascot)
Hybrid: 3 days onsite
Contract: Initial 6 month contract with view to permanent
Rate: Attractive day rate

About the role

We are seeking a senior Network Security Engineer with strong Fortinet and OT (Operational Technology) experience to join a high-performing professional services team. You will design and deliver customer-facing network and security solutions for a major enterprise client, with a strong focus on OT and industrial environments.

This role is suited to a senior engineer who is confident in a consulting environment, enjoys working directly with clients, and can translate business requirements into secure, practical network solutions.

Key responsibilities

• Deliver customer-facing network and security solutions across enterprise and OT environments
• Act as a Fortinet subject matter expert across firewalls and security platforms, including policy, configuration, optimisation and upgrades
• Engage directly with clients to understand business needs and translate them into technical designs and implementation plansSupport and enhance network and security services within OT environments such as industrial sites, critical infrastructure, manufacturing and utilities
• Lead and contribute to project delivery including migrations, upgrades, hardening and network segmentation
• Collaborate with senior engineers, architects and business stakeholders to define and embed best practice for Fortinet and OT security
• Produce clear documentation, design artefacts, runbooks and standards for both OT and IT network environments

About you

• Strong hands‑on experience with Fortinet firewalls and security solutions such as FortiGate (FortiManager and FortiAnalyzer experience highly regarded)
• Proven experience in a consultancy or professional services environment in a client‑facing role
• Comfortable presenting to and working with both technical and non‑technical stakeholders
• Experience designing, supporting or securing OT and industrial networks (for example SCADA, PLC, ICSEnvironments)
• Solid understanding of core routing and switching concepts, with Cisco experience highly regarded
• Background working in enterprise or critical infrastructure environments
• Strong understanding of network security principles including segmentation, remote access, VPNs, IDS/IPS and hardening
• Motivated to stay current with Fortinet and OT security best practices and pursue certifications such as Fortinet NSE and Cisco or security-focused certifications

About the company

You will be joining a consultancy of around 130 people delivering major network and security projects and professional services engagements for blue‑chip clients. The business is founded and led by two highly respected veterans of the Australian network and security community, known for deep technical capability and a collaborative, supportive culture.
What’s on offer

• Senior role with a clear pathway to permanency
• Opportunity to operate as a Fortinet SME in complex OT and enterprise environments
• Direct exposure to industry leaders in the Australian network and security space
• Support for training and certifications across Fortinet, Cisco and broader security
• Work on modern, large-scale enterprise and OT environments with real‑world impact