Senior Machine Learning Engineer

GOAT Group is a leading platform for authentic sneakers, apparel, and accessories, and they are seeking a Senior Machine Learning Engineer to drive personalization and product marketplace improvement efforts. This role involves developing AI/ML solutions and collaborating with cross-functional teams to enhance user experience and optimize data products.

Responsibilities:

• Act as a technical lead within the data team to advance our recommendation & search algorithms. You will focus on improving the relevance & quality of inventory impressions that are served to prospective buyers
• Develop proprietary AI/ML solutions that reflect our unique marketplace dynamics (peer-to-peer exchange of second hand clothing & accessories that are represented as “one-of-one” listings in the market.)
• Form a high-level perspective on objectives across departments in the organization and how advanced data methods might solve complex business problems
• Be able to autonomously and proactively identify business problems that could benefit from data solutions, whether it be application of existing models or the need for the development of new model(s), and take ideas through all phases, from proposal to alignment to execution
• Establish best practices for training, development and maintenance of data models. This includes using A/B testing and communicating results to stakeholders
• Own the deployment of trained models into production in collaboration with Data or ML Engineers. You will be responsible for ensuring reliable, observable deployment into Snowflake using DBT, integrating with existing data pipelines and platform infrastructure, and maintaining version control of code and configurations via Git
• Mine user data to identify opportunities for personalization improvements. This includes defining and tracking KPIs related to personalization effectiveness
• Develop and maintain data models in Snowflake to support analytical and reporting needs, providing insights to business stakeholders across various departments
• Use Python to create ML models and structure the resulting data into a consumable flow
• Develop user-to-user mapping capabilities to enhance personalization
• Utilize search technologies (i.e. Algolia, AWS OpenSearch) to enhance product discovery and personalization
• Analyze message content to detect potentially fraudulent activities, such as identifying keywords or phrases associated with scams, requests for off-platform transactions, or attempts to phish for personal information
• Collaborate with product managers, engineers, designers, and business stakeholders to understand their data needs and provide data-driven solutions

Requirements:

• Graduate degree in data science, analytics, mathematics, machine learning, computer science, or related field a plus
• Demonstrated track record of applying analytical skills in a product or business setting may substitute for formal advanced education
• 8+ years of relevant work experience in a data or quantitative role, demonstrated success in a startup, high-growth or faced paced organization
• Ability to tell a story with data, explaining complex concepts or results to audiences ranging from C-suite to IC levels
• Expert level grasps on SQL, Python and complex mathematical concepts related to recommendation and personalization engines
• Proven expertise in advanced statistical modeling, causal inference, experiment/test design, and working knowledge of machine learning algorithms
• Expert level proficiency in Python for data manipulation, statistical analysis, and model development
• Experience in designing, developing, deploying and optimizing Personalization and Recommendation products at scale
• Experience building models to assess item/listing quality (as defined by likelihood of sales), classify listings, and use NLP on unstructured text
• Experience modeling time-series forecasts for market trends, seasonality, demand prediction and other relevant KPIs
• Experience in marketplace, e-commerce, or fashion/retail domains
• Experience with web + App product environment
• Experience with Marketing analytics
• Practical experience with vector databases and embeddings for tasks like user-to-user or user-to-item mapping, semantic search, or item similarity
• Experience with Snowflake for SQL and data-warehousing
• Experience with DBT for building modular, version-controlled data transformations
• Experience with Git for collaborative code development and review
• History of mentoring or developing teammates
• Ongoing learning (e.g. relevant certifications; open-source contributions; personal projects; etc.) is a plus and shows initiative