3,946 jobs for "System Performance Engineer"

Responsibilities

We are the messaging team on TikTok. Our team's mission is to facilitate meaningful user connections through TikTok's messaging experience, which is still in its infancy. We achieve our mission by building and shipping tools that help our users more easily connect and share the things they care about.

We are looking for passionate mobile software engineers to join us and help contribute to our aim of helping users explore and discover the world's creativity, knowledge and moments that matter in everyday life, all while empowering everyone to be a creator directly from their smartphones.

Responsibilities:
- Responsible for the Android client-side development and iteration of TikTok Messaging, building core chat experiences including the chatroom, stickers, and Streak social-interaction features;
- Develop and optimize real-time Voice & Video Call capabilities and client-side IM infrastructure (IMSDK, on-device data management) to deliver a smooth, and reliable core messaging experience;
- Explore AI-powered engineering efficiency by building AI skills and knowledge bases and creating AI agents to assist daily development and collaboration workflows, improving the team's overall requirement-iteration efficiency and code quality;
- Continuously optimize client performance, stability, and smoothness, optimize package size and resource consumption, and improve the user experience.

Qualifications

Minimum Qualification(s):
- Bachelor's degree or above in Computer Science, Software Engineering, Electronic Information Engineering, or related fields;
- Strong learning and communication skills, and a sustained passion for technology;
- Strong logical analysis and system abstraction abilities; able to understand and debug large and complex code bases;
- Proficient in AI coding tools;
- Solid computer fundamentals (data structures, algorithms, operating systems, etc.); proficient in Kotlin or Java and familiar with the Android development framework.

Preferred Qualification(s):
- Interest in or practical experience with AI Skills/AI Agents;
- Passion and experience building consumer-facing products are a huge plus; we would love to hear about apps you've developed!

Responsibilities

Qualifications

Qualifications

Minimum Qualification(s):
- Bachelor's degree or above in Computer Science, Software Engineering, Electronic Information Engineering, or related fields;
- Strong learning and communication skills, and a sustained passion for technology;
- Strong logical analysis and system abstraction abilities; able to understand and debug large and complex code bases;
- Proficient in AI coding tools;
- Solid computer fundamentals (data structures, algorithms, operating systems, etc.); proficient in Kotlin or Java and familiar with the Android development framework.

Preferred Qualification(s):
- Interest in or practical experience with AI Skills/AI Agents;
- Passion and experience building consumer-facing products are a huge plus; we would love to hear about apps you've developed!

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

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