Machine Learning Engineer - Conversation AI

$140,100 - $210,100/Yr

Doordash - Sunnyvale, CA

Full-time - Mid Level

Sunnyvale, CA

Couriers and Messengers

About the position

As a Machine Learning Engineer at DoorDash, you will play a crucial role in developing and enhancing machine learning models that support the company's three-sided marketplace. This position focuses on natural language processing (NLP) and personalization, aiming to improve user experiences for consumers, merchants, and dashers. You will collaborate with engineering leads and product managers to set strategies that drive business metrics and growth.

Responsibilities

• Lead the development of DoorDash's support chatbot and LLM system using advanced machine learning techniques.
• Drive the personalization of issue prediction and resolution policies for DoorDash's users.
• Spearhead the creation of next-generation LLM AI Agent tools to enhance user interaction with the support system.
• Apply advanced experiment design techniques to create A/B tests for measuring the impact of innovations.
• Collaborate with cross-functional teams to prioritize machine learning investments.

Requirements

• 3+ years of industry experience developing optimization models with business impact, including 1+ year in a tech lead role.
• M.S. or PhD in Statistics, Computer Science, Math, Operations Research, Physics, Economics, or other quantitative fields.
• Deep understanding of natural language processing techniques and procedures for acquiring and validating human-labeled data.
• Experience in big data analysis and system integration with new ML solutions.
• Good understanding of quantitative disciplines such as statistics, machine learning, operations research, and causal inference.
• Familiarity with programming languages like Python and machine learning libraries such as SciKit Learn and Spark MLLib.
• Experience in productionizing and A/B testing machine learning models.

Nice-to-haves

• Familiarity with advanced causal inference techniques and contextual bandit algorithms.

Benefits

• Comprehensive healthcare benefits
• 401(k) plan with employer match
• Short-term and long-term disability coverage
• Basic life insurance
• Wellbeing benefits
• Paid time off
• Paid parental leave
• Several paid holidays
• Opportunities for equity grants