Senior Infrastructure & Network Engineer
Core
Senior escalation and technical leadership for complex infrastructure and network issues across on-premises, AWS, Azure, and hybrid environments, leading a multi-year cyber security uplift programme.
Role type
Senior IC infrastructure & network engineer (SASE/Zero Trust)
Builds
Zscaler SASE (ZIA, ZPA) platform, Zero Trust remote access services, and secure hybrid cloud connectivity.
Domain
Cyber security, SASE, Zero Trust, Cloud Infrastructure (AWS/Azure), Network Engineering
Required skills
SASE/SSE deployment and operations, Zscaler (ZIA, ZPA), Cloud networking (AWS/Azure), Network protocols (TCP/IP, BGP, OSPF), Identity integration (Microsoft Entra ID), Infrastructure automation (PowerShell, Python, Bash), Root cause analysis, Change management
Preferred skills
Zscaler certifications (ZDTA, ZDTE), Vendor certifications (PCNSE, FCP, JNCIP), SD-WAN deployment, DLP/SSL inspection policy design, Terraform/Ansible, AI tools for operations
Technologies
Zscaler (ZIA, ZPA), AWS (VPC, Transit Gateway), Microsoft Azure (VNet, Entra ID), Juniper, Fortinet, Palo Alto Networks, Microsoft Entra ID, PowerShell, Python, Bash, Terraform, Ansible
Responsibilities
Act as Level 3 escalation point for critical incidents and complex service requests; Engineer and operate Zscaler SASE platform including ZIA and ZPA; Lead migration from Always-On VPN to Zero Trust controls; Administer and troubleshoot AWS and Microsoft Azure cloud environments; Support Windows Server and Linux estates including Active Directory and patching; Lead root-cause analysis for major incidents and improve monitoring coverage; Automate repetitive tasks using scripting and infrastructure-as-code; Apply security, compliance, and change management processes across all environments
Seniority
Senior, hands-on IC