TikTok

Machine Learning Engineer - E-commerce Merchant Growth (LLM & Agentic Systems)

TikTok$150K — $387K *
Consumer Technology
Less than 5 years of experience
Job Overview by Ladders

Qualifications

  • Master's or PhD in Computer Science, AI, Statistics, Operations Research, or related fields with deep learning experience.
  • Understanding of ML and deep learning fundamentals utilizing classification, regression, NLP, and model optimization.
  • Strong Python programming skills and familiarity with ML frameworks like PyTorch or TensorFlow.
  • Proven ability to connect algorithms to business outcomes with a self-driven and curious approach.
  • 2+ years of ML Engineer experience, preferably with a focus in NLP or growth algorithms.
  • Strong analytical, teamwork, and communication skills.

Responsibilities

  • Develop and implement deep learning and LLM-powered systems to enhance merchant operational tools.
  • Utilize extensive e-commerce data to create systems that produce actionable insights for sellers.
  • Employ ML models to forecast seller performance and suggest agent-based strategies.
  • Collaborate with diverse teams to design and execute innovative projects that significantly benefit merchants.
  • Create models for lead-scoring, merchant classification, outreach, and knowledge management.
  • Optimize pricing, promotions, and traffic strategies through data mining and predictive modeling.
  • Communicate complex technical insights clearly to both technical and non-technical teams.

Benefits

  • Medical, dental, and vision insurance starting on day one.
  • 401(k) savings plan with company match.
  • Paid parental leave and disability coverage.
  • Generous paid time off including 10 holidays and 17 personal days annually.
  • Comprehensive wellbeing benefits.
Full Job Description
Responsibilities

Team Introduction We're the core team building LLM-powered agentic systems that drive and accelerate seller growth across global markets. We bring cutting-edge AI into production at scale - from applied LLMs and multi-agent systems to real-world business impact in one of the fastest-growing e-commerce ecosystems in the world. We're looking for brilliant and motivated ML engineers eager to apply their knowledge in machine learning (ML), operations research (OR), data mining, and large-scale intelligent systems to real-world challenges. If you love building, experimenting, and shaping how AI transforms commerce, we want to talk to you. Applications are reviewed on a rolling basis - we encourage you to apply early. Responsibilities 1. Develop and deploy deep learning and LLM-powered systems for merchant operational tools and global e-commerce growth scenarios. 2. Leverage large-scale e-commerce data to power agentic systems that generate actionable insights - from CRM content generation and store decoration to automated email reply and outreach optimization. 3. Use ML models to predict seller performance, identify growth gaps, and provide agent-based recommendations (e.g., campaign design, pricing, and promotions). 4. Collaborate with cross-functional partners (product, data science, operations) to design and deliver 0-to-1 projects that fundamentally reshape how merchants grow, impacting millions of daily sales across key categories (beauty, fashion, health, etc.). 5. Build lead-scoring models, merchant tiering algorithms, outreach optimization systems, and knowledge graphs to enhance onboarding and retention efficiency. 6. Apply data mining and predictive modeling to optimize product pricing, promotion, and traffic allocation strategies. 7. Communicate technical insights effectively to both technical and non-technical stakeholders, fostering a collaborative, data-driven culture.

Qualifications

Minimum Qualifications 1. Master's or PhD degree in Computer Science, Artificial Intelligence, Statistics, Operations Research, or related fields, with experience in data mining or deep learning. 2. Solid understanding of ML and deep learning fundamentals - classification, regression, NLP, and model optimization. 3. Strong programming skills in Python and familiarity with ML frameworks (e.g., PyTorch, TensorFlow). 4. Demonstrated ability to connect algorithms with business impact; highly self-driven with strong ownership and curiosity. 5. 2+ years of experience as an ML Engineer, ideally in NLP, recommendation, marketing, or growth algorithms. 6. Excellent analytical, teamwork, and communication skills. Preferred Qualifications 1. Experience in applied LLMs, multi-agent systems, or RAG (retrieval-augmented generation) pipelines. 2. Published work in top-tier conferences (KDD, NeurIPS, ICML, SIGIR, WSDM, WWW, AAAI, IJCAI, RecSys, etc.) or success in ML competitions. 3. Hands-on experience in e-commerce or other large-scale, data-intensive production environments. 4. Passion for building agentic systems that drive real-world business outcomes.

Job Information

[For Pay Transparency]Compensation Description (Annually)

The base salary range for this position in the selected city is $150000 - $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.

About TikTok

TikTok is a social media app that allows users to create and share short videos. The app was launched in 2016 by Chinese tech company ByteDance. TikTok has become one of the most popular social media apps in the world, with over 1 billion active users. The app has been downloaded over 2 billion times worldwide. TikTok has faced controversy over its data privacy practices and its potential ties to the Chinese government. In 2020, the app faced a potential ban in the United States, but a deal was reached with Oracle and Walmart to create a new company called TikTok Global.
Learn more about TikTok
Size
1,750 employees
Industry
Founded
2012

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