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 Forensics team is responsible for the company’s technical investigations and digital forensics work.
This role sits at the intersection of applied AI, software engineering, security data engineering, and digital forensics. You will build evidence-aware AI systems that help investigators retrieve, correlate, reason over, package, and explain evidence across complex enterprise telemetry, while preserving auditability, reproducibility, privacy, and human judgment.
You will also partner closely with investigators to convert recurring case patterns into reusable workflows, AI-assisted investigation tools, evaluation datasets, playbooks, and detection/control improvements.
Responsibilities:
- Design and build AI-native forensic investigation workflows for evidence retrieval, enrichment, entity normalization, timeline reconstruction, evidence indexing, evidence packaging, and investigation report generation.
- Build agentic systems that safely interact with internal tools, APIs, logs, and investigation datasets through controlled tool use, permissioning, human-in-the-loop review, and auditable execution traces.
- Develop retrieval, knowledge, and reasoning systems over cases, logs, policies, tickets, reports, and evidence repositories, with grounded citations and structured outputs.
- Create evaluation frameworks for forensic AI workflows, including golden cases, regression tests, grounding checks, hallucination/failure analysis, precision/recall measurement, and investigator feedback loops.
- Engineer data workflows across platform audit logs, identity/cloud logs, endpoint/server telemetry, network logs, DLP, and other investigation data sources.
- Partner with forensic investigators to turn ambiguous investigative questions into reproducible workflows, reusable query packs, dashboards, agent tools, and defensible technical outputs.
- Drive proactive risk discovery by generalizing patterns from real cases, running targeted hunts across multi-source telemetry, validating signals, and converting findings into detection, logging, control, and process improvements.
- Apply AI-assisted engineering responsibly to accelerate prototyping, refactoring, testing, and documentation while maintaining code review, test coverage, change control, privacy safeguards, and evidentiary defensibility.
Minimum Qualifications
- Bachelor's Degree in Cybersecurity, Information Security, or Computer Engineering.
- Minimum 5 years of experience in Cybersecurity or DevSecOps roles.
- Demonstrated capabilities using Python, Go, or other production languages to build custom threat detection rules or threat hunting queries for SIEM/EDR platforms.
- Proven experience designing and building robust data pipelines to process, normalise and correlate large-scale security telemetry from multiple sources.
- Strong knowledge and demonstrated exposure addressing common AI Agent security risks and hardening strategies (e.g., OWASP Top 10 for LLMs, including prompt injection, unauthorised tool execution, and denial of service).
Preferred Qualifications
- Regional or global enterprise scale Security detection operations experience.
- Proven track record of integrating LLM or Agentic AI into cybersecurity workflows.
- Knowledge of Agent Loop architecture.
- Strong familiarity and track record of applying MITRE ATLAS framework to threat modeling and risk assessments for AI systems.
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.
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.
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