Senior Network Security Engineer

Responsibilities
Team Intro

You will be a part of the Network Security Operations team responsible for Cyber Defense and Engineering. The Network Security Operations team's primary focus is management of security and defense platforms, technologies, tools, and services supporting security controls across TikTok's environments. As a Network Security Operations Specialist, you will be responsible for supporting cross-functional teams including cyber, privacy, and data protection engineers, architects, and analysts to deploy, integrate, and manage technologies to support the security and protection of data in accordance with relevant geographical regulations, contractual commitments, and confidentiality requirements.

In order to enhance collaboration and cross-functional partnerships, among other things, at this time, our organization follows a hybrid work schedule that requires employees to work in the office 3 days a week, or as directed by their manager/department. We regularly review our hybrid work model, and the specific requirements may change at any time.

Responsibilities

• Must be skilled in conducting technical analysis of network security and business problems, as well as threats, incidents, investigations, workforce protection, and other general security-related issues.

• Must have the ability to communicate well, participate in coordinating response and defensive actions over a variety of security disciplines, and disseminate security information as appropriate in support of TikTok's critical business, go to market, and operational infrastructure needs.

• Possess in-depth knowledge of network architecture, troubleshooting, and security protocols. You will play a key role in designing, implementing, and maintaining our network systems, ensuring seamless performance and secure connectivity.

• Network Security Design & Implementation: Develop, deploy, and maintain security architectures, including firewalls, VPNs, IDS/IPS systems, and network access controls.

• Threat Monitoring & Analysis: Continuously monitor network traffic, logs, and alerts to identify and respond to security threats in real-time.

• Incident Response: Investigate and respond to security breaches and incidents; perform root-cause analysis and implement corrective actions.

• Vulnerability Assessment: Conduct regular vulnerability assessments, penetration tests, and security audits to identify and address potential risks.

• Security Policies & Procedures: Develop and enforce security best practices, protocols, and policies for network security operations.

• Compliance & Risk Management: Ensure network security compliance with relevant regulatory requirements (e.g., GDPR, HIPAA, PCI-DSS).

• Security Upgrades & Patching: Maintain the latest security patches and updates across all network systems and devices.

• Collaboration & Training: Work closely with IT teams, developers, and management to strengthen security posture; provide guidance and training to other employees on security practices.

• Documentation: Maintain detailed documentation of security configurations, incidents, processes, and troubleshooting procedures.

Qualifications
Minimum Qualifications:

• Bachelor's degree in Computer Science, Information Technology, Cybersecurity, or a related field.

• Experience: 5+ years of experience in network security, with a proven track record of designing and implementing security solutions.

• Technical Skills: Deep knowledge of network protocols, architecture, and security technologies (firewalls, VPN, IDS/IPS, DLP, etc.), Experience with security monitoring tools (SIEM, packet sniffers, etc.), Proficiency in performing penetration testing and vulnerability assessments, Familiarity with operating systems (Windows, Linux) and cloud security platforms (AWS, Azure), Knowledge of encryption, authentication, and authorization protocols.

• Strong ability to identify and mitigate risks, troubleshoot network issues, and make sound decisions under pressure.

• Excellent verbal and written communication skills to effectively communicate security concepts to technical and non-technical stakeholders.

• Travel: Open to travel as needed.

Preferred Qualifications:

• Certified Information Systems Security Professional (CISSP)

• Certified Ethical Hacker (CEH)

• Cisco Certified Network Professional Security (CCNP Security)

• Certified Information Security Manager (CISM)

• Any Cloud Security Certifications , Certificate of Cloud Security Knowledge (CCSK)

About USDS
TikTok is the leading destination for short-form mobile video. Our mission is to inspire creativity and bring joy. U.S. Data Security ("USDS") is a subsidiary of TikTok in the U.S. This new, security-first division was created to bring heightened focus and governance to our data protection policies and content assurance protocols to keep U.S. users safe. Our focus is on providing oversight and protection of the TikTok platform and U.S. user data, so millions of Americans can continue turning to TikTok to learn something new, earn a living, express themselves creatively, or be entertained. The teams within USDS that deliver on this commitment daily span across Trust & Safety, Security & Privacy, Engineering, User & Product Ops, Corporate Functions and more.​

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.​

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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.​

USDS Reasonable Accommodation
USDS 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 ​

Job Information
【For Pay Transparency】Compensation Description (Annually)

The base salary range for this position in the selected city is $ $196000 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.​