Job Description
Responsibilities
The mission of TikTok's Global Security Organization is to build and earn trust by reducing risk and securing our businesses and products. Also known as GSO, this team is the foundation of our efforts to keep TikTok safe, secure, and operating at scale for over 1 billion people around the world. We work to ensure that the TikTok platform is safe and secure, that our users experience and their data remains safe from external or internal threats, and that we comply with global regulations wherever TikTok operates.
Trust is one of TikTok's biggest initiatives, and security is integral to our success. In whatever ways users interact with us whether they're watching videos on their For You page, interacting with a Live video, or buying products on TikTok Shop GSO protects their data and privacy, so they can have a secure and trustworthy experience.
TikTok's Global Digital Forensics team is responsible for the company's technical investigations and digital forensics work. We are seeking a Senior Threat Analyst. This role focuses on technical threat investigations by correlating and analyzing multi-source logs and data to build reviewable evidence chains and fact-based narratives, producing audit-ready and reproducible investigation conclusions and supporting materials.
Responsibilities
- Own technical investigations of suspected threat activity: triage, scoping, deep-dive analysis, and conclusion.
- Conduct investigations using enterprise telemetry and forensics techniques across: Internal platform operation logs, Endpoint / server logs (EDR, HIDS), Network logs (e.g., firewall/proxy/VPN/DNS/flow logs), DLP logs
- Build timelines, entity relationships, and causality chains; identify data access, staging, exfiltration, or misuse patterns.
- Produce clear, reproducible investigation deliverables: technical summaries, reports, and supporting evidence packages.
- Drive proactive risk discovery through data analysis and mining: continuously explore and correlate telemetry to surface suspicious behaviors, emerging patterns, and investigation leads before they become escalations.
- Improve detection and investigation efficacy: propose/refine threat monitoring use cases and operational playbooks based on investigation learnings.
- Partner with relevant stakeholders (e.g., Security, Legal, Compliance, HR/ER) for evidence handoff and case closure.
Qualifications
Minimum Qualifications
- Log analytics at scale (querying, correlation, pivoting) using SIEM/log platforms
- Data analysis / mining to identify anomalies and risk signals from large, noisy datasets
- Ability to produce defensible outputs: clear reasoning, evidence traceability, and repeatable analysis steps.
Preferred Qualifications
- 5+ years in one or more of: DFIR, threat hunting, SOC investigation, detection engineering, endpoint security analytics, or threat investigations.
- Proficient with AI-assisted tools for investigation workflows (e.g., rapid triage, log summarization, report drafting, and workflow automation), with strong interest in applying AI to improve speed, consistency, and investigative quality.
- Direct threat investigation experience using DLP + EDR/HIDS + network telemetry + internal platform audit logs in combination.
- Scripting/automation to accelerate investigations (Python, PowerShell, KQL/SQL, etc.).
- Experience operating in regulated environments and supporting audits/evidence requests.
- Endpoint/server investigation and telemetry interpretation (EDR/HIDS)
- Data exfiltration / data misuse investigation patterns (cloud, endpoint, network, internal platforms)
About TikTok
TikTok is the leading destination for short-form mobile video. At TikTok, our mission is to inspire creativity and bring joy. TikTok'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.
Why Join Us
Inspiring creativity is at the core of TikTok'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 limitless. Join us.
Diversity & Inclusion
TikTok is committed to creating an inclusive space where employees are valued for their skills, experiences, and unique perspectives. Our platform connects people from across the globe and so does our workplace. At TikTok, our mission is to inspire creativity and bring joy. To achieve that goal, we are committed to celebrating our diverse voices and to creating an environment that reflects the many communities we reach. We are passionate about this and hope you are too.
