Senior Network Engineer

1 week ago

Sydney, New South Wales, Australia Ethos BeathChapman Full time $120,000 - $180,000 per year

Senior Network Engineer | Security | DDoS | BGP |

Salary:
Up to $180,000 + super + bonus

Location:
Sydney – Hybrid (2 days office / 3 days WFH)

Offices:
Kogarah (Wednesday) + either Parramatta or Sydney CBD (1 other day)

The Opportunity

A fantastic opportunity has opened up for a Senior Network Security Engineer to join a highly skilled Security & Infrastructure team. This role will see you take ownership of complex edge and perimeter network-security engineering, with a particular focus on DDoS mitigation and L3/L4 security controls.

You'll be involved in designing, deploying, and optimising critical security infrastructure across cloud and on-premises environments, ensuring traffic flows securely and efficiently through technologies such as BGP, firewalls, and data scrubbing platforms.

Key Responsibilities


•
Design & Deploy:
Build and manage high-performance, scalable edge/perimeter network-security solutions using Infrastructure-as-Code.


•
DDoS Defence:
Tune and operate L3/L4 DDoS mitigation platforms (e.g.,
Akamai
, Cloudflare, FortiDDoS, Arbor, Radware), overseeing policy baselines, readiness and incident response.


•
Traffic Flow Management:
Engineer and optimise secure traffic flows, leveraging routing protocols (
BGP
), firewalls, and advanced network-security techniques.


•
Incident Response:
Lead complex Level 3 incident investigations, ensuring proactive mitigation and operational excellence.


•
Automation & IaC:
Drive automation with tools such as Terraform, Ansible, Git and Python, embedding IaC into delivery pipelines.


•
Continuous Improvement:
Enhance telemetry, monitoring, and alerting to strengthen operational resilience and incident prevention.

What You'll Bring


•Strong background in network security engineering within large-scale, complex environments.


•Expertise in DDoS mitigation at Layers 3/4, including deployment, tuning, and policy management.


•Deep knowledge of TCP/IP, BGP, DNS, VPNs, firewalls, and perimeter architectures.


•Hands-on experience with automation & provisioning (Terraform, Ansible, Python, Git).


•Exposure to Akamai or equivalent platforms highly regarded.


•Relevant certifications (CCNP, CCIE, JNCIP, NSE) strongly desirable.


•Experience in financial services or other highly regulated industries advantageous.


•Why Apply? Join a high-performing, security-focused engineering team.


•Work across cutting-edge network security & DDoS mitigation projects


•Flexible hybrid model (Sydney-based).

Must be an Australian Citizen or Permanent Resident.

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