Security Engineering Project Intern (Watermark) - 2026 Start (BS/MS)

Job Description:

About the Team The Security Engineering Watermark team is dedicated to building industry-leading watermark algorithms, services, and technologies, and to supporting cross-functional teams in protecting our users, products, and infrastructure. In today's AI-driven content generation landscape, watermarking has become a critical technology for addressing challenges such as insider risk, content provenance and authenticity, copyright protection, and large-language model(LLM) safeguarding. In this team, you'll have a unique opportunity to gain first-hand exposure to the company's strategy on key security initiatives - particularly in building invisible watermark algorithms for AI-generated content(AIGC) and LLM models. You will also have the chance to experience the full lifecycle of security products and services, and are encouraged to participate in solving real-world problems across TikTok/ByteDance products at scale. As a project intern, you will have the opportunity to engage in impactful short-term projects that provide you with a glimpse of professional real-world experience. You will gain practical skills through on-the-job learning in a fast-paced work environment and develop a deeper understanding of your career interests. Applications will be reviewed on a rolling basis - we encourage you to apply early. Successful candidates must be able to commit to at least 3 months long internship period. Responsibilities: - Work with the team to design and develop new invisible watermark algorithms that effectively balance high robustness, high visual quality, and tamper resistance. - Explore security solutions in the AIGC era, building industry-leading capabilities for protecting LLM copyrights and tracing the provenance of AIGC. - Partner with mentors on rapid exploration sprints: frame hypotheses, design experiments, run evaluations, and iterate quickly from concept to proof-of-concept to early productization on frontier challenges. - Collaborate closely with cross-functional teams - including product, platform, and research - to understand real-world requirements and translate them into actionable solutions

Candidate Requirements:

Minimum Qualifications - Undergraduate, or Postgraduate who is currently pursuing a degree/master in Computer Science, Computer Engineering, Security, AI or other STEM disciplines. - Proven experience of grasp of computer science fundamentals (algorithms, data structures, operating systems, networking). - Proficiency in one or more backend programming languages such as Python, Go, C++, Java or similar, with familiarity with common development frameworks and a solid grasp of fundamental data structures and algorithms. - Proven skills with one or more of the following: OpenCV-based image processing, signal processing, or deep learning techniques relevant to invisible watermarking. Preferred Qualifications - Proven experience in invisible watermark development for images, video, or audio. - Proven experience with AIGC watermarking or LLM model watermarking is a strong plus. - Proactive, optimistic mindset with a strong sense of responsibility and excellent problem-solving and analytical skills. - Proven skills in communication and a collaborative team spirit. By submitting an application for this role, you accept and agree to our global applicant privacy policy, which may be accessed here: https://jobs.bytedance.com/en/legal/privacy