Frontend Infrastructure Engineer (AI Tooling), TikTok Client Arch

Responsibilities

TikTok's Web Architecture team is looking for a visionary Frontend Infrastructure Engineer (AI Tooling) to shape the future of AI-driven frontend engineering. You will work on the evolution of our monorepo toolchain, web application architecture and frameworks, while integrating LLM-powered automation and intelligent development workflows to build an AI-native frontend infrastructure. Key Responsibilities: - Define and prototype what "AI-native frontend infrastructure" means in practice - where both humans and AI agents are first-class users of the development platform and tooling. - Transform frontend developer experience by leveraging AI to automate and enhance repository maintenance, large-scale refactoring, error diagnosis and remediation, CI/CD automation, and knowledge management across complex codebases. - Establish evaluation and benchmarking frameworks to measure AI-assisted engineering productivity, reliability, and code correctness at scale. - Design and build AI-native interaction paradigms, web application architectures, and supporting frameworks that enable AI-driven user experiences. - Stay abreast of the latest web technologies, trends, and industry practices. Evaluate and recommend new tools, frameworks, and methodologies to enhance the team's efficiency. - Partner with engineering teams and cross-functional teams to identify challenges, deliver scalable platform solutions, and drive adoption with measurable impact.

Qualifications

Minimum Qualification(s): - Experience: extensive web development experience, with a strong focus on frontend infrastructure - Strong expertise in modern web technologies, including HTML, CSS, JavaScript/TypeScript, and at least one major frontend framework (e.g., React or Vue). - Deep experience with large-scale frontend infrastructure, including monorepo toolchains (e.g., Rush, pnpm, Turborepo), dependency management, CI/CD pipelines, and incremental build systems. - Demonstrated experience architecting complex frontend or platform systems, including the design of reusable development frameworks, extensible abstractions, and scalable engineering standards. - Experience integrating LLMs or AI systems into engineering workflows (e.g., code generation, refactoring tools, automated code review, CI automation). - Strong system-level problem-solving ability, with experience navigating large codebases and driving architectural evolution. - Ability to influence technical direction and collaborate across teams to drive platform adoption at scale. Preferred Qualification(s): - Track record in successful AI application development and adoption. - Experience building developer platforms, internal tooling systems, or engineering productivity infrastructure. - Strong learning ability and interest in exploring how AI can reshape developer productivity and engineering infrastructure. - Prior experience in a technology-driven startup or fast-paced environment.

Job Information

[For Pay Transparency]Compensation Description (Annually)

The base salary range for this position in the selected city is $156000 - $387600 annually.

Compensation may vary outside of this range depending on a number of factors, including a candidate's qualifications, skills, competencies and experience, and location. Base pay is one part of the Total Package that is provided to compensate and recognize employees for their work, and this role may be eligible for additional discretionary bonuses/incentives, and restricted stock units.

Benefits may vary depending on the nature of employment and the country work location. Employees have day one access to medical, dental, and vision insurance, a 401(k) savings plan with company match, paid parental leave, short-term and long-term disability coverage, life insurance, wellbeing benefits, among others. Employees also receive 10 paid holidays per year, 10 paid sick days per year and 17 days of Paid Personal Time (prorated upon hire with increasing accruals by tenure).

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