Graduate Backend Software Engineer – Messaging (2027 start)

About the role

Join TikTok's Messaging team as a Graduate Backend Software Engineer. You will help build and evolve the server‑side capabilities that power core messaging features such as Streak, Stickers, Voice & Video Call, and emerging AI‑driven experiences.

Key responsibilities

• Develop and iterate backend services for TikTok Messaging, focusing on reliability and scalability.
• Design and implement server‑side infrastructure (IMCloud) for data management and cross‑datacenter synchronization.
• Ensure user privacy and compliance with regional regulatory requirements.
• Explore next‑generation messaging experiences powered by large language models (LLM) and AI‑generated content (AIGC).
• Optimize performance, stability, and cost efficiency under high‑concurrency scenarios.

Required profile

• Recent or upcoming graduate with a Bachelor’s degree in Computer Science or a related field.
• Strong logical analysis, system abstraction, and problem‑solving abilities.
• Self‑driven, responsible, and able to work on complete backend projects.
• Excellent learning and communication skills.

Required skills

• Proficiency in at least one programming language: Java, Go, C++, or Python.
• Solid understanding of data structures, algorithms, and operating systems.
• Familiarity with AI coding tools and interest in AI agents, LLM, or AIGC.

What we offer

• Opportunities to work on bold ideas and complex challenges in a fast‑growing product area.
• Exposure to cutting‑edge AI technologies and large‑scale messaging infrastructure.
• Mentorship and career growth within TikTok’s global engineering organization.