Responsibilities

TikTok is the leading destination for short-form mobile video. Our mission is to inspire creativity and bring joy. TikTok has global offices, including Los Angeles, New York, London, Paris, Berlin, Dubai, Mumbai, Singapore, Jakarta, Seoul, and Tokyo.

Why Join Us
At TikTok, our people are humble, intelligent, compassionate and creative. We create to inspire - for you, for us, and for more than 1 billion users on our platform. We lead with curiosity and aim for the highest, never shying away from taking calculated risks and embracing ambiguity as it comes. Here, the opportunities are limitless for those who dare to pursue bold ideas that exist just beyond the boundary of possibility. Join us and make impact happen with a career at TikTok.

Our United States Data Security (USDS) function provides services to TikTok's US market using four principles that guide our strategic and tactical operations. First, we champion trust and transparency, leading the charge in organizational transparency and execution of security and privacy capabilities that drive customer trust. Second, we are a business catalyst and enabler, embodying the DNA of technical innovation. Third, we drive risk-informed and empowered decision-making, giving our business leaders the information needed to make key decisions. Finally, we proactively identify and reduce risk while enabling innovative product development - to consistently build sustainable world-class and trusted security capabilities.

As an Application Security Penetration Tester, you will validate security controls around web resources and mobile applications and their backend web services for TikTok. Work with a team of security testing professionals to enhance existing services offerings and security testing capabilities and conduct hands on technical testing focused on identification of OWASP type vulnerabilities in both web application and mobile applications.

To succeed in this role the candidate will possess breadth and depth of knowledge in security of operating systems, networking and protocols, firewalls, databases and middleware applications, forensics, scripting and programing. All Application Security Penetration Testers are expected to continuously improve their tradecraft through research, to add breadth and depth to their knowledge.

- Develop/modify custom tooling to solve new needs
- Build relationships with engineering teams to drive TikTok to a strong security state
- Conduct full exploitation operations in Windows and *nix environments
- Develop comprehensive and accurate reports and presentations for both technical and executive audiences
- Communicate findings and strategy to client stakeholders, including technical staff, executive leadership, and legal counsel
- Perform innovative research and promote an environment of innovation and knowledge sharing
- Perform web application testing, mobile application testing, network penetration testing, and source code reviews
- Utilize attacker tools, tactics, and procedures to perform analysis and identify vulnerabilities
- Implement static and dynamic security testing as part of an automated application security testing process
- Other Cybersecurity operational and project initiatives responsibilities to be assigned

Qualifications

Minimum Qualifications
- Bachelors' Degree or industry equivalent work experience in IT, Computer Engineering or a similar field
- 3+ years of experience performing application penetration tests
- Well-rounded background in application, network, and system security
- Experience with using, administering, and troubleshooting different flavors of Linux
- Experience working in Windows environments
- Experience with reading, writing, and editing code written in various programming languages, such as Perl, Python, Ruby, Bash, C/C++, C#, and Java
- Experience with Burp Suite Pro, including identification and usage of relevant plugins
- Experience with security assessment tools, including Nessus, Accunetix, Metasploit, or Cobalt Strike
- Experience with conducting reverse engineering on mobile applications, including applications with anti-emulator and obfuscation protections
- Open to travel as the need arises to perform testing on-site e.g. Data centers, office locations etc. (Estimated Frequency: once per month)

Preferred Qualifications:
- Industry certifications such as OSCP, OSCE, OSWE, GPEN, GCIH, GWAPT, or GXPN
- Contributions to the security community such as research, public CVEs, bug-bounty recognitions, open-source projects, blogs, publications, etc
- Experience with server administration, TCP/IP networking, vulnerability identification and exploitation, vulnerability exploit code development, offensive security operation coordination and communication, vulnerability tracking and remediation, mobile testing
- Experience with methodologies on both static and dynamic analysis for different application types and platforms
- Experience working with Web Application Firewalls
- Securing, testing, having a good understanding of API vulnerabilities and how to address them

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 during our recruitment process. If you need assistance or accommodation, please reach out to us at USRC[redacted]

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