Software Engineer Intern (Recommendation Infrastructure)

2 Months ago • Upto 1 Years • Full Stack Development

Job Summary

Job Description

This is a 12-week summer internship (May/June 2025) for a Software Engineer Intern focusing on Recommendation Infrastructure within TikTok's Data Architecture team. The intern will contribute to building and optimizing the architecture for recommendation products, aiming to provide the best user experience. Responsibilities include building high-performance online services for TikTok's recommendation system (For You Feed, E-commerce, Social, etc.), creating efficient data pipelines, building large-scale recommendation systems, and developing high-performance computing frameworks and storage systems. The internship offers hands-on experience, social events, and development workshops, fostering personal and professional growth. Successful candidates must be pursuing a Computer Science (or related) degree and have programming experience (C, C++, Java, or Python). Experience in personalized recommendations, search engines, machine learning, or big data frameworks is a plus.
Must have:
  • Pursuing CS or related degree
  • 12-week commitment (Summer 2025)
  • Programming experience (C/C++/Java/Python)
  • Effective communication skills
  • Build high-performance services
  • Efficient data pipelines
Good to have:
  • Experience in personalized recommendations
  • Search engine experience
  • Machine learning experience
  • Distributed storage systems experience
  • Big data frameworks experience
Perks:
  • Health insurance
  • Life insurance
  • Wellbeing benefits
  • 10 paid holidays
  • Paid sick time

Job Details

Responsibilities
Our Recommendation Architecture Team is responsible for building up and optimizing the architecture for our recommendation products to provide the most reliable and best experience for our TikTok users. Interns are important parts to our team with your fresh ideas and creative thoughts. 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 TikTok. 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 May/June 2025. Successful candidates must be able to commit to one of the following summer internship start dates below: Monday, May 12 Monday, May 19 Tuesday May 27 (Memorial Day May 26) Monday, June 9 Monday, June 23 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 TikTok's technical online assessment in HackerRank. Responsibilities • Build and maintain high performance online services for TikTok recommendation system to support various types of products, such as For You Feed, E-commerce, Social, etc. • Build extremely efficient and reliable data pipelines for candidates generation, profile generation, training examples generation, realtime online training, etc; • Build globalized large-scale recommendation system; • Design and develop high performance computing frameworks and storage systems.
Qualifications
Minimum Qualifications: • Currently pursuing an Undergraduate/Master in Computer Science or a related technical discipline • Able to commit to working for 12 weeks during Summer 2025 • Must obtain work authorization in country of employment at the time of hire, and maintain ongoing work authorization during employment. • Experience in programming, included but not limited to, the following programming languages: C, C++, Java or Python. • Effective communication skills, self-driven learner, a sense of ownership • Projects or research experienced in at least one area of the following areas: personalized recommendations, search engine, machine learning, distributed storage system, big data frameworks is a plus. Preferred Qualifications • Graduating December 2025 onwards with the intent to return to degree program after the completion of the internship.
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.

Why Join ByteDance

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 desire to make impact in a rapidly growing tech company. By constantly iterating and fostering an "Always Day 1" mindset, we achieve meaningful breakthroughs for ourselves, our Company, and our users. When we create and grow together, the possibilities are limitless. Join us.

Diversity & Inclusion

ByteDance 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 ByteDance, our mission is to inspire creativity and enrich life. 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.

Reasonable Accommodation

ByteDance is committed to providing reasonable accommodations in our recruitment processes for candidates with disabilities, pregnancy, sincerely held religious beliefs or other reasons protected by applicable laws. If you need assistance or a reasonable accommodation, please reach out to us at

【For Pay Transparency】Compensation Description (Hourly) - Campus Intern

The hourly rate range for this position in the selected city is $45- $60.

Benefits may vary depending on the nature of employment and the country work location. Interns have day one access to health insurance, life insurance, wellbeing benefits and more. Interns also receive 10 paid holidays per year and paid sick time (56 hours if hired in first half of year, 40 if hired in second half of year).

The Company reserves the right to modify or change these benefits programs at any time, with or without notice.

For Los Angeles County (unincorporated) Candidates:

Qualified applicants with arrest or conviction records will be considered for employment in accordance with all federal, state, and local laws including the Los Angeles County Fair Chance Ordinance for Employers and the California Fair Chance Act. Our company believes that criminal history may have a direct, adverse and negative relationship on the following job duties, potentially resulting in the withdrawal of the conditional offer of employment:

1. Interacting and occasionally having unsupervised contact with internal/external clients and/or colleagues;

2. Appropriately handling and managing confidential information including proprietary and trade secret information and access to information technology systems; and

3. Exercising sound judgment.

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About The Company

Founded in 2012, ByteDance's mission is to inspire creativity and enrich life. With a suite of more than a dozen products, including TikTok 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.

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