Senior Machine Learning Engineer, Large Language Models & Generative AI

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 TeamOur team is pioneering the future of large language model-based applications with a focus on developing long-term memory capabilities and delivering personalized chat, search, and recommendation experiences. We're leveraging our deep expertise in artificial intelligence to create advanced AI algorithms that can understand, learn, and predict, dramatically enhancing user interactions. Our mission is to revolutionize how we engage with machines, making them more intuitive and human-like than ever. With a relentless commitment to excellence and a profound understanding of AI, we are setting new standards and pushing the boundaries of what language model-based applications can achieve.Responsibilities:Play a critical role in setting the direction and goals for a sizable team, in terms of project impact, ML system design, and ML excellence.Adapt standard machine learning methods to best exploit modern parallel environments (e.g., distributed clusters, multicore SMP, and GPU).Re-evaluate the tradeoffs of already shipped features/ML systems, and drive large efforts across multiple teams to reduce technical debt, designing from first principles when appropriate.Lead a team from a technical perspective to develop ML best practices and influence engineering culture.Be a go-to person to escalate the most complex online/production performance and evaluation issues, requiring an in-depth knowledge of how the machine learning system interacts with surrounding systems.Develop highly scalable classifiers and tools leveraging machine learning, data regression, and rules-based models.Suggest, collect, and synthesize requirements and create effective feature roadmap.Code deliverables in tandem with the engineering team.QualificationsMinimum Qualifications:4+ years of experience in software engineering, or a relevant field. 2+ years of experience if you have a PhD.3+ years of experience in one or more of the following areas: Large Language Models, machine learning, recommendation systems, pattern recognition, data mining, artificial intelligence, or related technical field.Experience building and shipping high quality work and achieving high reliability.Experience with developing machine learning models at scale from inception to business impact.Knowledge developing and debugging in C/C++ and Java, or experience with scripting languages such as Python, Perl, PHP, Javascript, and/or shell scripts.Experience demonstrating technical leadership working with teams, owning projects, defining and setting technical direction for projects.Bachelor's degree in Computer Science, Computer Engineering, relevant technical 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 request via

this link .Job Information:For Pay TransparencyThe base salary range for this position in the selected city is $194000 - $355000 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.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:Interacting and occasionally having unsupervised contact with internal/external clients and/or colleagues;Appropriately handling and managing confidential information including proprietary and trade secret information and access to information technology systems;Exercising sound judgment.

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