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Network Security Engineer

TikTok USDS JV
London, GBR
Onsite
Discovered 2 weeks ago
Network security engineeringAWSAzureGCPCloud networkingIAM

Full Job Posting

Role overview

Network Security Engineer on the TikTok USDS network security team, safeguarding user data and corporate environments.

The team builds and monitors zero-trust network protections, detects cyber threats and secures access for approved external partners.

Responsibilities

  • Design, deploy and maintain secure network architectures across multi-cloud environments, including cloud network gateways, security groups and cloud-native firewalls.
  • Develop and integrate AI-enhanced network automation and SOAR playbooks for threat containment, firewall provisioning and anomalous traffic mitigation.
  • Use AIOps platforms and machine-learning analytics to identify behavioral anomalies, reduce alert fatigue and predictively route network or security events.
  • Manage and optimize next-generation firewalls, IDS/IPS and SASE or ZTNA solutions.
  • Act as a Level 2 escalation point for network security incidents, conducting packet analysis, threat hunting and post-incident forensic reviews.
  • Maintain compliance with frameworks such as CIS, NIST and SOC 2, and perform automated vulnerability assessments.
  • Maintain documentation of network topologies, automation scripts and incident-response procedures.
  • Mentor Tier 1 SOC and NOC analysts.

Minimum qualifications

  • At least 3 years of dedicated experience in network security engineering, architecture or tier-2 operations.
  • Hands-on experience securing infrastructure in AWS, Azure or GCP, with deep knowledge of cloud networking, IAM and micro-segmentation.
  • Strong proficiency in one or more of Python, Go or Bash, and Infrastructure-as-Code tools such as Terraform or Ansible.
  • Hands-on experience with SOAR platforms and AI-driven network analytics or threat-detection tools.
  • Deep understanding of TCP/IP, BGP, OSPF, IPsec/SSL VPNs, DNS and packet-level analysis using tools such as Wireshark or tcpdump.
  • Advanced administration experience with enterprise firewalls such as Palo Alto, Fortinet or Check Point.

Preferred qualifications

  • Certifications such as CCNP Security, PCNSE, AWS Certified Security – Specialty, Azure Security Engineer Associate or CISSP are preferred.
  • Experience deploying and managing SASE platforms such as Zscaler, Prisma Access or Netskope is preferred.
  • Understanding of CI/CD pipelines and integration of network security checks into the software development lifecycle is preferred.

Workplace

  • The posting describes on-site presence across teams.

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