ResponsibilitiesTikTok 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 its offices include New York, London, Dublin, Paris, Berlin, Dubai, Jakarta, Seoul, and Tokyo. Why Join UsCreation is the core of TikTok's purpose. Our platform is built to help imaginations thrive. This is doubly true of the teams that make TikTok possible. Together, we inspire creativity and bring joy - a mission we all believe in and aim towards achieving every day. To us, every challenge, no matter how difficult, is an opportunity; to learn, to innovate, and to grow as one team. Status quo? Never. Courage? Always. At TikTok, we create together and grow together. That's how we drive impact - for ourselves, our company, and the communities we serve. Join us.About the TeamQuality Technology Team focuses on the quality domain, providing a series of effective quality products and tools throughout the entire software engineering lifecycle from development, testing, and changes to online operation and maintenance. Aimed at business, we offer comprehensive quality improvement solutions, helping businesses quickly build quality technology capabilities in areas such as quality built-in, testing efficiency, automated testing, change risk prevention and control, architectural risk governance, and monitoring and emergency response.What You'll Do:As a Machine Learning Engineer (MLE) specializing in code large language models, you will be responsible for developing, enhancing, and applying AI-powered models designed specifically for code-related tasks. Your role will involve working with advanced code intelligence models to perform comprehensive code reviews, generate unit tests, and implement effective code fixes. You will leverage your deep understanding of code-centric AI to drive innovation and deliver high-quality solutions that improve software engineering processes.Key Responsibilities:- Develop and Enhance Code LLMs: Design, train, and optimize code-specific LLMs to address tasks such as code review, unit testing, code fixing, and other code-centric activities.- Code Review and Analysis: Utilize code intelligence models to perform thorough and accurate code reviews, identifying potential issues, improvements, and areas for optimization.- Unit Test Generation: Develop and implement models that automatically generate unit tests to ensure code quality and reliability.- Code Fixing and Refactoring: Leverage AI models to suggest and apply code fixes, improvements, and refactorings to enhance code performance and maintainability.- Research and Innovation: Stay up-to-date with the latest advancements in code LLMs and related AI technologies. Conduct research to identify new techniques and methodologies that can be integrated into our solutions.- Work closely with software engineers, data scientists, and other stakeholders to understand requirements and deliver effective AI-powered tools and solutions.- Document model development processes, performance metrics, and results. Provide detailed reports and insights on model performance and improvements.QualificationsMinimum Qualifications:- Proven experience in developing and working with code-specific large language models (e.g., GitHub Copilot, OpenAI Codex, DeepMind AlphaCode) and related AI technologies.- Strong proficiency in programming languages such as GoLang (preferred), Python, Java, or C++. Experience with machine learning frameworks and libraries (e.g., TensorFlow, PyTorch).- Ability to solve complex problems comprehensively and develop innovative solutions using code-centric AI models.- In-depth understanding of software engineering principles, code review processes, unit testing methodologies, and code optimization techniques.- Excellent verbal and written communication skills, with the ability to clearly convey technical concepts and collaborate effectively with cross-functional teams.- Bachelor’s or Master’s degree in Computer Science, Engineering, or a related field, or equivalent practical experience.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 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 https://shorturl.at/cdpT2#LI-CN1Job Information【For Pay Transparency】Compensation Description (annually)The base salary range for this position in the selected city is $224000 - $410000 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.Our company benefits are designed to convey company culture and values, to create an efficient and inspiring work environment, and to support our employees to give their best in both work and life. We offer the following benefits to eligible employees: We cover 100% premium coverage for employee medical insurance, approximately 75% premium coverage for dependents and offer a Health Savings Account(HSA) with a company match. As well as Dental, Vision, Short/Long term Disability, Basic Life, Voluntary Life and AD&D insurance plans. In addition to Flexible Spending Account(FSA) Options like Health Care, Limited Purpose and Dependent Care. Our time off and leave plans are: 10 paid holidays per year plus 17 days of Paid Personal Time Off (PPTO) (prorated upon hire and increased by tenure) and 10 paid sick days per year as well as 12 weeks of paid Parental leave and 8 weeks of paid Supplemental Disability. We also provide generous benefits like mental and emotional health benefits through our EAP and Lyra. A 401K company match, gym and cellphone service reimbursements. 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; and3. Exercising sound judgment.
