Applications Engineer Intern Jobs in California (NOW HIRING)

Responsibilities
The team builds the products and infrastructure that help users discover people they know, establish and manage connections, and maintain meaningful relationships on TikTok. Our work spans the full relationship lifecycle, from relationship discovery and connection establishment to relationship management and social graph services. We build reliable, scalable, and privacy-conscious experiences across TikTok's backend, iOS, and Android platforms, providing the relationship foundation for a wide range of social experiences on TikTok. We are looking for talented individuals to join us for an internship. Our internship program offers students hands-on experience, industry exposure, and opportunities to apply their knowledge to real-world challenges while building a strong foundation for personal and professional growth. Interns will gain practical experience, explore potential career paths, and participate in social events, learning programs, and development workshops alongside industry professionals. Candidates may apply to a maximum of two positions across Our Company and its affiliates globally. Applications will be considered in the order they are submitted. Applications are reviewed on a rolling basis, so we encourage you to apply early. Please clearly state your availability in your resume, including your start and end dates. Responsibilities: As a Full-Stack Software Engineer Intern on the team, you will: - Design, develop, and deliver business-critical systems and product features that power relationship discovery, connection, and management experiences on TikTok. - Work across the full product stack, including backend services, iOS applications, and Android applications. - Own features end to end-from technical design and API development to client implementation, testing, launch, and iteration. - Collaborate with product managers, designers, data scientists, and engineers across multiple teams to deliver high-quality products in a fast-paced environment. - Write robust and maintainable code, create clear technical documentation, and deliver high-quality work on schedule.
Qualifications
Minimum Qualifications - Currently pursuing an undergraduate or graduate degree in Computer Science, Computer Engineering, Software Engineering, or a related technical discipline. - Able to commit to a 12-week internship during Summer 2027. - Experience developing software across backend, iOS, or Android platforms, with the ability and willingness to contribute across all three. - Strong understanding of computer architecture, data structures, algorithms, operating systems, and software engineering principles. - Experience designing APIs and integrating mobile applications with backend services. Preferred Qualifications - Experience independently delivering an end-to-end feature spanning backend services and mobile clients. - Familiarity with distributed systems, high-concurrency services, mobile architecture, networking, databases, or performance optimization. - High levels of creativity and strong problem-solving capabilities. - Strong learning ability, clear communication, and a strong sense of teamwork and responsibility. By submitting an application for this role, you accept and agree to our global applicant privacy policy, which may be accessed here: https://careers.tiktok.com/legal/privacy
Job Information
[For Pay Transparency]Compensation Description (Hourly) - Campus Intern
The hourly rate range for this position in the selected city is $45- $45.
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). Interns who are not working 100% remote may also be eligible for housing allowance.
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.
About TikTok
TikTok is the leading destination for short-form mobile video. At TikTok, our mission is to inspire creativity and bring joy. TikTok's global headquarters are in Los Angeles and Singapore, and we also have offices in New York City, London, Dublin, Paris, Berlin, Dubai, Jakarta, Seoul, and Tokyo.
Why Join Us
Inspiring creativity is at the core of TikTok's mission. Our innovative product is 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 bring joy - a mission we work towards every day.
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. Every challenge is an opportunity to learn and innovate as one team. We're resilient and embrace challenges as they come. 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
TikTok 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 TikTok, our mission is to inspire creativity and bring joy. 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.
TikTok Accommodation
TikTok 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