> Markdown version of [/jobs/ext/4181181-security-engineer-detection-response-global-security-organization-threat-management-incident-response-and-investigation](https://www.wearedevelopers.com/jobs/ext/4181181-security-engineer-detection-response-global-security-organization-threat-management-incident-response-and-investigation). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md).

---

# Security Engineer, Detection & Response - Global Security Organization - Threat Management Incident Response and Investigation

- **Company:** Tiktok Inc
- **Location:** San Jose, CA, United States
- **Experience:** Expert
- **Salary:** $128,000.0 - $256,000.0
- **Contract:** Permanent contract
- **Skills:** Artificial Intelligence, Data Analysis, Business Software, Cyber Security, Data Security, Intrusion Detection and Prevention, Machine Learning, Open Web Application Security, Security Information and Event Management, Data Streaming, Data Logging, Data Ingestion, Large Language Models, Multi-Agent Systems, Cybercrime, Virtual Agents, Unsupervised Learning
- **Published:** October 7, 2026
- **Apply:** https://www.indeed.com/viewjob?jk=9eca0114be3d4113

## About the Role

Minimum Qualifications - 5+ years of hands-on experience in information security, cybersecurity engineering, or a related technical field. - Proven experience processing and correlating large-scale multi-source security telemetry. - Solid foundation in data analysis, statistics and applied machine learning for anomaly detection. - Hands-on experience building detection rules or threat hunting queries for SIEM/EDR platforms. - Strong knowledge of common AI Agent security risks and hardening strategies (e.g., OWASP Top 10 for LLMs, including prompt injection, unauthorized tool execution, and denial of service). Preferred Qualifications - Deep familiarity with the MITRE ATLAS framework, with a proven track record of applying it to threat modeling and risk assessment for AI systems. - LLM/Agent detection experience, Agent Loop architecture knowledge. - Global enterprise-scale detection operations experience.

## Description

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 Detection Engineering team is responsible for identifying anomalous behaviors across the enterprise at scale. We are seeking a Detection Engineer. This role focuses on mining abnormal patterns from massive volumes of logs including host, network, endpoint, authentication and business application data, to detect potential unintended activities within the internal environment. This covers both external intrusion attempts, and emerging AI-specific security risks, and requires strong data analysis and algorithmic
skill sets. TikTok's Global Detection Engineering team identifies anomalous behaviors at enterprise scale. We are seeking a Detection Engineer to mine abnormal patterns from massive host, network, endpoint, authentication and business application logs. This role detects external intrusions and emerging AI security risks, requiring strong data analysis and algorithmic skills. Responsibilities - End-to-End Detection Engineering: Own detection rules, behavioral models, and pipelines end-to-end - from log ingestion through alerting - across petabyte-scale security telemetry. - Streaming & ML-Based Anomaly Detection: Build streaming detection pipelines that combine statistical methods and unsupervised learning to baseline normal behavior and surface unknown threats. - AI Agent Security Detection: Design detection capabilities for internal agent systems based on the MITRE ATLAS framework, covering invocation, tool execution, privilege escalation, and data access. - Detect emerging
attack patterns: agent abuse, unauthorized tool calls, agent escape, multi-agent collusion. - Monitor agent-LLM-tool-data interactions to catch instruction manipulation and data exfiltration. - Retrospective Threat Hunting: Run hunting pipelines against cold storage and historical logs to support post-incident analysis and detection gap validation. - Continuous Optimization: Improve signal-to-noise ratio, cut down alert fatigue, and work with AI security teams to shape logging standards for LLM and agent systems.