Senior Network & Security Specialist

Responsibilities

• Design, implement and operate secure AWS network architectures including VPC design and CIDR strategy, Transit Gateway routing and segmentation, Gateway Load Balancer and centralised inspection patterns, PrivateLink, VPC endpoints, Route53, Security Groups and NACLs.
• Implement and enforce network security controls across cloud, data centre and hybrid environments, supporting secure east‑west and north‑south traffic flows.
• Design and support hybrid connectivity between AWS, on‑prem data centres and third‑party providers using VPNs and private connectivity with resilient and DR‑ready architectures.
• Configure, operate and troubleshoot enterprise network and security platforms including Palo Alto firewalls, F5 load balancers, Cisco routing, switching and ACI, and Infoblox IPAM.
• Develop and maintain Infrastructure as Code (IaC) using Terraform to deliver standardised, governed cloud network and security deployments.
• Support automation and CI/CD integration, including scripting (Python and/or PowerShell) and integration with platforms such as Git, ServiceNow, IPAM, DNS and security policy tooling (e.g. AlgoSec).
• Provide Tier‑3 support for complex network and security incidents, performing deep technical troubleshooting, root cause analysis and service improvement.
• Monitor and optimise network performance, capacity and availability using observability tools such as Splunk and Cisco ThousandEyes.
• Act as a subject matter expert, contributing to secure design patterns, standards, uplift initiatives and knowledge sharing across teams.
• Essential Skills
• Bachelor's degree in IT, Computer Science or equivalent industry experience, with 8+ years' hands‑on experience in network engineering, cloud networking, network security or NetOps/DevOps roles within large or regulated environments.
• Strong expertise in AWS cloud networking and security, with working knowledge of Azure networking and multi‑cloud/hybrid integration.
• Strong grounding in core networking concepts including IP addressing, BGP and static routing, switching fundamentals and data centre network design.
• Proven experience with Infrastructure as Code, automation and operating within ITIL‑based environments.
• Excellent analytical and communication skills, with the ability to translate complex technical outcomes into business‑aligned impacts.
• Desirable
• AWS, CCNA/CCNP, PCNSE certifications
• Experience in financial services, insurance or healthcare.
• About HCF
• Culture & Benefits
• Purpose-driven passion
• We're united by a common purpose: to make healthcare affordable, understandable, high quality and member-focused.
• Wellness and work-life balance
• We'll empower you with the necessary skills and tools to support your personal wellbeing journey, ensuring you perform at your best. Our offerings include:
• Flexible working arrangements
• 50% subsidy on HCF hospital and/or extras cover
• Family-friendly certified employer
• 18 weeks of parental leave for all new parents
• Mental health and wellbeing programs, including workshops, fitness classes, flu vaccinations, skin checks and more
• Discounts on HCF's products, including life, pet and travel Insurance, as well as discounts at Fitness First gyms and on our eyecare products.
• Collaboration and inclusivity
• Continuous learning and growth
• We believe in lifelong learning. HCF provides opportunities for personal and professional development. From workshops to mentorship programs, we encourage your growth and curiosity.
• Next steps
• If you require any adjustme

Benefits

Additional Information

We are seeking a Senior Network & Security Specialist with deep, hands on expertise in AWS cloud networking and security to design, operate and continuously uplift our cloud first and hybrid network environment within a highly regulated setting. This role combines engineering, Tier 3 operational support and automation, supporting secure by design outcomes aligned to HCF's cloud strategy and regulatory obligations.

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