Security Operations Analyst - Detection Engineering & Threat Hunting, Global SOC

Responsibilities

Tik Tok's IT security team is responsible for enterprise IT global cyber security, server security, endpoint security, application security construction, and protection work. They work to improve overall IT security capabilities and security posture, providing security processes, security assessments, security operations, and security vulnerability management services. The team also supports IT teams and business departments in meeting their security requirements.

• Monitor security alerts and events generated by various security tools and technologies, such as SIEM, IDS/IPS, firewalls, and endpoint detection and response (EDR) systems.
• Build and tune high-fidelity detections across endpoint, identity, cloud, and SaaS telemetry sources
• Reduce alert fatigue and false positives through improved severity tagging, disposal logic, and enrichment workflows
• Conduct threat and scenario-driven threat hunts based on TTPs, anomalies, and threat intelligence
• Identify and close detection gaps uncovered during incident response or hunting operations
• Design and maintain SOAR playbooks and automation logic for triage, enrichment, and response
• Partner with CTI and detection engineers to operationalize threat intelligence and attacker behaviors
• Develop and maintain detection logic aligned with frameworks such as MITRE ATT&CK and MaGMa
• Contribute scripts and tooling (e.g., Python, Power Shell) to improve investigation and response efficiency
• This position is part of a team that provides on-call support and requires working scheduled shifts, which may include holidays.
• Assist in post-incident reviews to drive continuous improvement of detection coverage and response workflows
• Coordinate Security Incident Response lessons learnt and post-mortem activities with XFN stakeholders.

• 4+ years in security operations, incident response, detection engineering, or threat hunting roles
• This position is part of a team that provides on-call support and requires working scheduled shifts, which may include holidays.
• Strong proficiency with SIEM platforms (e.g., Splunk, Chronicle, Elastic) and EDR tools (e.g., Sentinel One, Crowd Strike)
• Hands-on experience writing and tuning detection logic (e.g., Sigma, EQL, KQL, YARA)
• Deep understanding of attacker tactics and techniques (MITRE ATT&CK, threat modeling)
• Scripting ability in Python or similar languages to support automation, enrichment, or detection-as-code workflows
• Experience conducting investigations using logs from identity providers, endpoints, cloud, and network telemetry

• Bachelor's degree in Computer Science, Cyber Security, or STEM field
• Familiarity with SOAR platforms and automation of incident response tasks
• Experience with detection-as-code pipelines, Git Ops, or CI/CD rule deployment
• Experience contributing to threat hunt frameworks or purple team exercises
• Knowledge of red teaming, penetration testing, malware analysis, or digital forensics
• Certifications such as GCIH, GCIA, GCTI, OSCP, or equivalent are a plus

Tik Tok is the leading destination for short-form mobile video. At Tik Tok, our mission is to inspire creativity and bring joy. Tik Tok's global headquarters are in Los Angeles and Singapore, and we also have offices in New York City, London, Dublin, Paris, Berlin, Dubai, Jakarta, Seoul, and Tokyo.

Inspiring creativity is at the core of Tik Tok's mission. Our innovative product is built to help people authentically express themselves, discover and connect - and our global, diverse teams make that possible. Together, we create value for our communities, inspire creativity and bring joy - a mission we work towards every day. We strive to do great things with great people.

We lead with curiosity, humility, and a desire to make impact in a rapidly growing tech company. Every challenge is an opportunity to learn and innovate as one team. We’re resilient and embrace challenges as they come. By constantly iterating and fostering an "Always Day 1" mindset, we achieve meaningful breakthroughs for ourselves, our company, and our users. When we create and grow together, the possibilities are…