Backend Software Engineer Intern (Product RD and Infrastructure-Global E-Commerce Customer Business)- 2025 Fall(BS/MS)

Responsibilities

Global e-commerce Team is a content e-commerce business with international short video products as the carrier. It is committed to becoming the first choice for users to discover and purchase good products at affordable prices. The global e-commerce business team hopes to provide users with a more tailored, active, and efficient consumption experience, enabling merchants to receive stable and reliable platform services in different scenarios such as live e-commerce, and short video content e-commerce, so as to make more affordable and high-quality products sell easily and a better life within reach.

We are looking for talented individuals to join us for an internship in 2025. Internships at TikTok aim to offer students industry exposure and hands-on experience. Turn your ambitions into reality as your inspiration brings infinite opportunities at ByteDance.

Internships at TikTok aim to provide students with hands-on experience in developing fundamental skills and exploring potential career paths. A vibrant blend of social events and enriching development workshops will be available for you to explore. Here, you will utilize your knowledge in real-world scenarios while laying a strong foundation for personal and professional growth. This Internship Program runs for 12 weeks beginning in August/September 2025. Successful candidates must be able to commit to one of the following summer internship start dates below:
8/11/2025
8/25/2025
9/8/2025
9/22/2025
We will prioritize candidates who are able to commit to these start dates. Please state your availability clearly in your resume (Start date, End date).

Candidates can apply to a maximum of two positions and will be considered for jobs in the order you apply. The application limit is applicable to TikTok and its affiliates' jobs globally. Applications will be reviewed on a rolling basis - we encourage you to apply early.

Online Assessment
Candidates who pass resume evaluation will be invited to participate in ByteDance's technical online assessment through HackerRank.

Responsibilities:
This internship provides students the opportunity to join one of our engineering teams where you will have the opportunity to build a system that is data-and-algorithm-driven, with high concurrency, high availability, and low latency, including:
- Develop efficient, highly scalable and secured services that power e-commerce products.
- Optimize backend systems and services for data security, modularity, computational efficiency and scalability.
- Design and develop data services and analytics platforms for e-commerce applications.
- Develop best-in-class user privacy and data security engineering practices across all product engineering disciplines.

Qualifications

Minimum Qualifications
- Currently pursuing an Undergraduate/Graduate degree in Computer Science or a related technical discipline
- Able to commit to working for 12 weeks during Fall 2025
- Must obtain work authorization in country of employment at the time of hire, and maintain ongoing work authorization during employment.
- Familiarity with backend development, and at least one of Java/Golang/Python/Scala/C++ languages.
- Basic understanding of data structure, algorithm design and analysis, networking, data security and highly scalable systems design.
- Familiarity of common databases and messaging frameworks like MySQL/Redis/Kafka etc.

Preferred Qualifications
- Graduating December 2025 onwards with the intent to return to degree program after the completion of the internship.
- Agile, quick self-learner, highly self-motivated with strong sense of product ownership and creative problem solver.
- Deeply passionate about software coding/development and building great mobile/web applications.
- Good collaborator and team player, comfortable working in a fast moving, culturally diverse and globally distributed team environment.

Job Information

About Us

Founded in 2012, ByteDance's mission is to inspire creativity and enrich life. With a suite of more than a dozen products, including TikTok, Lemon8, CapCut and Pico as well as platforms specific to the China market, including Toutiao, Douyin, and Xigua, ByteDance has made it easier and more fun for people to connect with, consume, and create content.​

Inspiring creativity is at the core of ByteDance's mission. Our innovative products are 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 enrich life - a mission we work towards every day.​

As ByteDancers, we strive to do great things with great people. We lead with curiosity, humility, and a desir