Security Operations Analyst - Detection Engineering & Threat Hunting

TikTok Inc.; San Jose (CA); On-site; USD 112,000 - 223,000; Full time

Job summary

TikTok Inc. is seeking a skilled security analyst to join the IT security team. You will monitor alerts from SIEM, IDS/IPS, firewalls, and EDR tools, and build high-fidelity detections across endpoints, identity, cloud, and SaaS sources.

You will reduce noise, hunt threats, and help mature incident response workflows. Responsibilities include designing SOAR playbooks, operationalizing threat intelligence, and aligning detection logic with MITRE ATT&CK and MaGMa frameworks.

Qualifications

• Bachelor's degree in Computer Science, Cyber Security, or STEM field.
• Experience working in or supporting a 24/7 global security operations environment.
• Strong proficiency with SIEM platforms (e.g., Splunk, Chronicle, Elastic) and EDR tools (e.g., SentinelOne, CrowdStrike).
• 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.

Responsibilities

• 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, PowerShell) to improve investigation and response efficiency.
• Support a global SOC by contributing to alert routing, follow-the-sun workflows, and detection health monitoring. This position is part of a team that provides 24/7 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.

Skills

SIEM proficiency

EDR experience

Detection logic tuning

Threat hunting

Threat intel understanding

Python scripting

Investigation with logs

Education

Bachelor's degree in CS / Cyber Security / STEM

Tools

Splunk

Chronicle

Elastic

SentinelOne

CrowdStrike

Job description

Responsibilities

About the team: The 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, PowerShell) to improve investigation and response efficiency.
• Support a global SOC by contributing to alert routing, follow-the-sun workflows, and detection health monitoring. This position is part of a team that provides 24/7 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.

Qualifications

Minimum Qualification(s):

• Bachelor's degree in Computer Science, Cyber Security, or STEM field.
• Experience working in or supporting a 24/7 global security operations environment.
• Strong proficiency with SIEM platforms (e.g., Splunk, Chronicle, Elastic) and EDR tools (e.g., SentinelOne, CrowdStrike).
• 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.

Preferred Qualification(s):

• Familiarity with SOAR platforms and automation of incident response tasks.
• Experience with detection-as-code pipelines, GitOps, 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.

Job Information

[For Pay Transparency] Compensation Description (annually)

The base salary range for this position in the selected city is $111600 - $223200 annually.

Compensation may vary outside of this range depending on a number of factors, including a candidate's qualifications, skills, competencies and experience, and location. Base pay is one part of the Total Package that is provided to compensate and recognize employees for their work, and this role may be eligible for additional discretionary bonuses/incentives, and restricted stock units.

Benefits may vary depending on the nature of employment and the country work location. Employees have day one access to medical, dental, and vision insurance, a 401(k) savings plan with company match, paid parental leave, short-term and long-term disability coverage, life insurance, wellbeing benefits, among others. Employees also receive 10 paid holidays per year, 10 paid sick days per year and 17 days of Paid Personal Time (prorated upon hire with increasing accruals by tenure).

The Company reserves the right to modify or change these benefits programs at any time, with or without notice.

For Los Angeles County (unincorporated) Candidates:

Qualified applicants with arrest or conviction records will be considered for employment in accordance with all federal, state, and local laws including the Los Angeles County Fair Chance Ordinance for Employers and the California Fair Chance Act. Our company believes that criminal history may have a direct, adverse and negative relationship on the following job duties, potentially resulting in the withdrawal of the conditional offer of employment:

1. Interacting and occasionally having unsupervised contact with internal/external clients and/or colleagues;
2. Appropriately handling and managing confidential information including proprietary and trade secret information and access to information technology systems; and
3. Exercising sound judgment.

Responsibilities

About the team: The 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, PowerShell) to improve investigation and response efficiency.
• Support a global SOC by contributing to alert routing, follow-the-sun workflows, and detection health monitoring. This position is part of a team that provides 24/7 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.

Qualifications

Minimum Qualification(s):

• Bachelor's degree in Computer Science, Cyber Security, or STEM field.
• Experience working in or supporting a 24/7 global security operations environment.
• Strong proficiency with SIEM platforms (e.g., Splunk, Chronicle, Elastic) and EDR tools (e.g., SentinelOne, CrowdStrike).
• 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.

Preferred Qualification(s):

• Familiarity with SOAR platforms and automation of incident response tasks.
• Experience with detection-as-code pipelines, GitOps, 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.