Senior Data Security Engineer
Job Description
Lead enterprise DLP engineering for TikTok USDS JV, owning policy and detection delivery, continuous improvement, and operational reliability across major DLP platforms.
Responsibilities
- Convert sensitive-data definitions, business workflows, and data-exfiltration scenarios into actionable DLP policies and detection logic.
- Design, test, deploy, and tune data protection controls across enterprise DLP platforms, including Forcepoint, Netskope, and Sublime Security, for endpoint, web, cloud application, and email data flows.
- Combine detection methods such as regular expressions, exact data matching, document fingerprinting, classification signals, and contextual conditions; apply LLM-based semantic analysis to identify protected data and assess exposure risk.
- Balance detection quality across accuracy, privacy, latency, and cost.
- Review policy outcomes and investigation feedback to reduce false positives, find missed detections, and improve alert prioritization.
- Create repeatable test cases covering sensitive-data detection, legitimate business activity, and potential control bypass patterns.
- Validate DLP controls before deployment and after significant platform or policy changes.
- Introduce changes using staged rollouts, documented approvals, and rollback plans to minimize business disruption.
- Review and manage policy exceptions with stakeholders, ensuring scope, ownership, justification, and expiration are clearly defined.
- Configure, maintain, and troubleshoot DLP platforms and integrations in partnership with IT and relevant system owners.
- Build monitoring for platform health, agent and connector coverage, policy deployment status, telemetry delivery, and alert routing.
- Investigate technical issues affecting inspection, enforcement, or visibility, coordinating resolution with internal teams and vendors.
- Develop dashboards and reporting for control coverage, alert quality, platform reliability, and recurring data-risk trends.
- Automate policy validation, event enrichment, reporting, and repetitive operational workflows using scripting and APIs.
- Integrate DLP signals with enterprise monitoring and case-management workflows, including deduplication, contextual enrichment, and escalation where appropriate.
- Act as a technical escalation point for complex DLP events, supporting Insider Security with detection interpretation, data movement validation, and understanding control limitations.
- Translate investigation findings into improvements to detection logic, preventive controls, and operational procedures.
- Handle sensitive event data according to approved access, privacy, retention, and confidentiality requirements.
- Drive data protection initiatives from requirements and design through deployment and operational handoff.
- Partner with IT, data owners, and business teams to understand legitimate workflows and close protection gaps.
- Maintain policy documentation, test results, runbooks, and design decisions; contribute to peer reviews and mentor less experienced engineers.
Requirements
- 5+ years of technical security experience, including 3+ years of hands-on enterprise DLP experience.
- Bachelor’s degree in Computer Science, Information Security, or a related field, or equivalent practical experience.
- Proven ability to independently design, test, deploy, and tune DLP policies, with strong hands-on expertise in Forcepoint DLP or Netskope DLP (not limited to platform administration or alert review).
- Experience with content inspection and contextual signals to detect sensitive data across endpoint, email, web, and cloud exfiltration paths, while balancing false positives, missed detections, and enforcement impact.
- Proficiency in Python or another scripting language for API-based automation; experience analyzing security telemetry using SIEM, log analytics, SQL, or equivalent tools.
- Ability to validate controls, manage production changes safely, and troubleshoot DLP platforms and enterprise integrations.
- Experience collaborating with incident response or insider-risk teams and communicating technical findings to both technical and non-technical stakeholders.
- Practical experience applying LLMs to data classification or security detection, including evaluating false positives and false negatives and handling sensitive data appropriately.
Technologies
- Forcepoint, Netskope, Sublime Security
- Python
- SIEM, log analytics, SQL
- LLM-based semantic analysis, LLM-based detection, LLMs
- Regular expressions, exact data matching, document fingerprinting, OCR
Benefits
- Day one access to medical, dental, and vision insurance
- 401(k) savings plan with company match
- Paid parental leave
- Short-term and long-term disability coverage
- Life insurance
- Wellbeing benefits
- 10 paid holidays per year
- 10 paid sick days per year
- 17 days of Paid Personal Time (prorated upon hire with increasing accruals by tenure)
Preferred Qualifications
- Hands-on experience with both Forcepoint and Netskope, including cross-platform enforcement and deployment with endpoint, email, or cloud application teams.
- Experience developing and tuning Sublime Security MQL rules for outbound email data protection.
- Experience protecting intellectual property, source code, confidential documents, credentials, or regulated personal information using advanced detection methods such as exact data matching, document fingerprinting, OCR, or sensitivity labels.
- Experience building automated rule tests, version-controlled configuration workflows, telemetry enrichment, or case-management integrations.
- Familiarity with insider-risk scenarios and generative AI data exposure, including unusual transfers, personal-account use, external sharing, and employee transitions.
- Experience deploying LLM-based detection with prompt design, representative evaluation datasets, regression testing, and safeguards for privacy, reliability, latency, and cost.
About USDS
- TikTok USDS Joint Venture LLC focuses on the safety and security of millions of Americans who create, discover, and connect through the apps it operates.
- The joint venture was established in compliance with the Executive Order signed by President Trump on September 25, 2025.
- The company is shifting from a hybrid work model to a fully in-person schedule up to 5 days a week.
Reasonable Accommodation
- USDS is committed to providing reasonable accommodations in recruitment processes for candidates with disabilities, pregnancy, sincerely held religious beliefs, or other reasons protected by applicable laws.
Location: Seattle, WA (onsite)
Compensation: USD 139,840 - 256,310 per yearly
Minimum Experience: 5 years
Education: Bachelor’s degree in Computer Science, Information Security, or a related field (or equivalent practical experience)