Security Engineer

Product Security - AI DevOps Engineer - Global Security Organisation 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.

The GSO provides industry-leading security and privacy services to Bytedance, guided by four principles: trust and transparency, business enablement, risk-informed decision-making, and proactive risk reduction. We strive to build sustainable, world-class security capabilities.

SecOps Validation Team (STOV) is responsible for the tools and technologies that support the TikTok infrastructure. STOV oversees technical validation, security operations, and drives engineering enhancements, including the deployment, configuration, and maintenance of security technologies across various domains.

The role will be responsible for the design, development, and operation of AI/ML systems that enable Product Security technical controls required by security policy and regulations. Validation targets include the product security of the TikTok product family and the Secure SDLC process. This role will provide a solid foundation to evaluate and improve maturity across TikTok’s product security practices and Secure SDLC.

A key responsibility is to operate and maintain the Large Language Model (LLM)-based product security validation system and knowledge base. This includes implementing DevOps/MLOps best practices to ensure reliable, scalable, and secure deployment, monitoring, and continuous improvement of the system.

RESPONSIBILITIES

Build and maintain ML pipelines for training, deployment, and monitoring in production

Develop APIs, integrations, and automation tools for AI-driven security validation workflows

Design and manage CI/CD pipelines for LLM services and related security applications

Operate and optimize vector databases, embeddings, and RAG pipelines

Implement monitoring, logging, and incident response for AI/ML systems

Collaborate with product security engineers to embed AI-driven controls into Secure SDLC

Maintain and expand the LLM-based knowledge base for product security validation

Qualifications

Minimum Qualifications

Experience in software development (Python, Go or Java)

Strong experience with DevOPs/MLOps practices (CI/CD, Docker, Kubernetes, monitoring)

Experience with cloud platforms and ML serving infrastructure

Excellent problem-solving and analytical skills with focus on production reliability

Preferred Qualifications

Bachelor’s or Master’s degree in Computer Science, AI/ML, Cybersecurity, or related fields

Experience with LLMs and techniques like fine tuning, and retrieval-augmented generation (RAG)

Operation knowledge on vector databases and text embedding models

Solid experience in data engineering workflows and large scale data processing

Certifications in Cloud (AWS ML Specialist, GCP ML Engineer) or Security (CISSP, CSSLP)

Experience with model monitoring, A/B testing, and gradual deployment strategies

Contribute to open-source DevOps, ML Ops or security projects

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.

TikTok Accommodation

TikTok is committed to providing reasonable accommodations in our recruitment processes for candidates with disabilities, pregnancy, sincerely held religious beliefs or other reasons protected by applicable laws. If you need assistance or a reasonable accommodation, please reach out to us at https://tinyurl.com/RA-request

Job Information

For Pay Transparency: Compensation Description (Annually). The base salary range for this position in the selected city is $136800 - $259200 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.

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