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TikTok

Senior Security Engineer (Multiple Positions)

San JoseScience and Engineering$242,278 – $387,600Posted Sep 11, 2026

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Responsibilities

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.

About the Team
Our team plays a crucial role in ensuring the company's success. We seek people who are willing to learn and put in the effort to solve problems. Our challenges are not your regular day-to-day problems - you'll be part of a team that's developing new solutions to new challenges. It's working fast, at scale, and we're making a difference. We are looking for talents to join us on this exciting journey!

Responsibilities
Drive the building of scalable and secure-by-design systems to ensure our applications are designed and implemented with the highest security and privacy standards, maintaining and enhancing user trust.
Conduct reviews and analyze designs, architectures, existing systems, services, operating systems, networks and applications from a security perspective, via black box testing, code reviews, automation, threat modeling and research.
Participate in the Software Development Life Cycle (SDLC) by performing security assessments of new application features.
Work with cross-functional stakeholders to analyze new threat scenarios, identify security vulnerabilities, perform forensic analyses, and coordinate incident response and resolution.
Conduct developer feedback interviews to optimize the SDLC.
Mentor junior-level team members.

Qualifications

Qualifications
Must have a Master's degree or foreign equivalent degree in Computer Science, Engineering (any), Information Technology, Information Systems, Information Security, Cybersecurity, or a related field, and 2 years of related work experience; OR a Bachelor's degree or foreign equivalent degree in Computer Science, Engineering (any), Information Technology, Information Systems, Information Security, Cybersecurity, or a related field, and 5 years of post-bachelor's, progressive related work experience.

Of the required experience, must have 2 years of experience in each of the following:
Web application security, mobile application security, network security, operating system internals and hardening, applied cryptography, or cloud computing;
Conducting design review, threat modeling, security mitigation development, security tooling development or privacy engineering;
Analyzing business logic to configure security tools and products based on the logic to provide security protection to services, applications, platforms, or websites;
Writing and reviewing code in at least one of the following programming languages: JavaScript (Node JS), Go, Python, Java, C++, or Rust;
Working on compliance readiness by leveraging information security controls, security frameworks, or standards, including ISO 27001, NIST CSF, PCI-DSS, or HIPAA; and
Debugging and troubleshooting software issues.

Type: Full time, 40 hours/week
Location: San Jose, CA
Salary Range: $242278 - $387600 per year

To Apply, click the apply button below. Contact lpresumes@tiktok.com if you have difficulty submitting resume through the website.

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 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

#IND-DNI

Job Information

[For Pay Transparency] Compensation Description (annually)

The base salary range for this position in the selected city is $242278 - $387600 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

Qualifications

Qualifications

Qualifications
Must have a Master's degree or foreign equivalent degree in Computer Science, Engineering (any), Information Technology, Information Systems, Information Security, Cybersecurity, or a related field, and 2 years of related work experience; OR a Bachelor's degree or foreign equivalent degree in Computer Science, Engineering (any), Information Technology, Information Systems, Information Security, Cybersecurity, or a related field, and 5 years of post-bachelor's, progressive related work experience.

Of the required experience, must have 2 years of experience in each of the following:
Web application security, mobile application security, network security, operating system internals and hardening, applied cryptography, or cloud computing;
Conducting design review, threat modeling, security mitigation development, security tooling development or privacy engineering;
Analyzing business logic to configure security tools and products based on the logic to provide security protection to services, applications, platforms, or websites;
Writing and reviewing code in at least one of the following programming languages: JavaScript (Node JS), Go, Python, Java, C++, or Rust;
Working on compliance readiness by leveraging information security controls, security frameworks, or standards, including ISO 27001, NIST CSF, PCI-DSS, or HIPAA; and
Debugging and troubleshooting software issues.

Type: Full time, 40 hours/week
Location: San Jose, CA
Salary Range: $242278 - $387600 per year

To Apply, click the apply button below. Contact lpresumes@tiktok.com if you have difficulty submitting resume through the website.

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 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

#IND-DNI

About TikTok

TikTok is the leading destination for short-form mobile video and our mission is to inspire creativity and bring joy.

Size: 5,001 - 10,000 employees
Industry: Entertainment & Gaming

View company profile

Perks and Benefits

Health and Wellness
- Health Insurance
- Dental Insurance
- Vision Insurance
- HSA
- Life Insurance
- Fitness Subsidies
- On-Site Gym
- Long-Term Disability
- Short-Term Disability
- Virtual Fitness Classes
- Mental Health Benefits
Parental Benefits
- Adoption Assistance Program
- Family Support Resources
- Fertility Benefits
Work Flexibility
- Flexible Work Hours
- Hybrid Work Opportunities
Vacation and Time Off
- Paid Vacation
- Paid Holidays
- Personal/Sick Days
- Leave of Absence
Financial and Retirement
- 401(k) With Company Matching
- Performance Bonus
- Company Equity
Office Life and Perks
- Casual Dress
- Snacks
- On-Site Cafeteria
- Holiday Events
- Company Outings
- Some Meals Provided
- Happy Hours
- Pet-Friendly Office
Professional Development
- Promote from Within
- Access to Online Courses
- Leadership Training Program
- Associate or Rotational Training Program
- Mentor Program
Diversity And Inclusion
- Diversity, Equity, and Inclusion Program
- Employee Resource Groups (ERG)