Cyber Defence Network Engineer: Incident Response & Zero Trust

ukgrantt; Greater London; On-site; GBP 60,000 - 85,000; Full time

Job summary

Grant Thornton's Cyber Defence Centre in the UK is seeking an experienced Network Engineer to join our hands-on team. You will deliver containment and recovery for live client security incidents and contribute to security assessments and hardening across cloud and on-premises environments.

You'll work with tools such as Microsoft 365, Entra ID, Azure, AWS, Active Directory, and CIS Benchmarks, aligning with NIST guidelines to design, implement and test resilient security solutions for diverse

Qualifications

• Experience in network security and incident response workflows.
• Exposure to cloud and on‑prem security configurations.
• Familiarity with CIS Benchmarks and NIST frameworks.

Responsibilities

• Deliver containment and recovery for live client security incidents.
• Perform security reviews and configuration hardening across cloud and on‑premises.
• Assess firewall, identity and access configurations; implement mitigations.
• Support remediation work aligned to security standards and best practices.

Skills

Network security

Incident response

Cloud security

Cyber defence

Tools

Microsoft 365

Entra ID

Azure

AWS

Active Directory

CIS Benchmarks

Prowler

ScubaGear

PingCastle

Job description

Grant Thornton's Cyber Defence Centre in the UK is seeking an experienced Network Engineer to join our hands-on team. You will deliver containment and recovery for live client security incidents and contribute to security assessments and hardening across cloud and on-premises environments.

You'll work with tools such as Microsoft 365, Entra ID, Azure, AWS, Active Directory, and CIS Benchmarks, aligning with NIST guidelines to design, implement and test resilient security solutions for diverse