Cloud Network Security Engineer — AI-Driven Zero Trust

TikTok USDS Joint Venture; Greater London; On-site; GBP 90,000 - 130,000; Full time

Job summary

TikTok USDS Joint Venture LLC is seeking a Network Security Engineer to design and defend the organization's global network across multi-cloud environments, driving zero-trust strategies and automated defenses.

You will serve as a Level 2 escalation point for incidents, apply AI-driven analytics, and mentor junior analysts while maintaining precise security documentation and compliance with CIS/NIST/SOC 2 frameworks.

Qualifications

• 3+ years in network security engineering, architecture, or tier-2 operations.
• Hands-on cloud security experience in AWS, Azure, or GCP; IAM and micro-segmentation.
• Proficient in Python, Go, or Bash; IaC tools for security automation.
• Experience with SOAR platforms and AI-driven threat detection tools.
• Strong TCP/IP, BGP, OSPF, IPsec/SSL VPNs, DNS, and packet analysis.
• Experience administering enterprise firewalls (Palo Alto, Fortinet, Check Point).

Responsibilities

• Design, deploy, and maintain secure network architectures across multi-cloud environments.
• Develop AI-enhanced network automation and SOAR playbooks for threat containment and provisioning.
• Leverage AIOps to identify anomalies and route security events.
• Manage NGFW, IDS/IPS, and SASE/ZTNA solutions.
• Serve as Level 2 escalation for incidents, perform packet analysis and threat hunting.
• Ensure configurations comply with CIS, NIST, SOC 2; run automated vulnerability assessments.
• Maintain network topology docs, automation scripts, and incident response procedures; mentor others.

Skills

Cloud Security Expertise

Automation & Scripting

AI/SOAR Experience

Core Networking

Firewall Proficiency

Tools

Terraform

Ansible

Palo Alto Cortex XSOAR

Splunk Phantom

Darktrace

Vectra

Job description

TikTok USDS Joint Venture LLC is seeking a Network Security Engineer to design and defend the organization's global network across multi-cloud environments, driving zero-trust strategies and automated defenses.

You will serve as a Level 2 escalation point for incidents, apply AI-driven analytics, and mentor junior analysts while maintaining precise security documentation and compliance with CIS/NIST/SOC 2 frameworks.