ML Engineer I - Personalization & Recommendations

Jobtailor; Mountain View (CA); On-site; USD 140,000 - 210,000; Full time

Job summary

Jobtailor in Mountain View is seeking a data-driven machine learning professional to own end-to-end modeling initiatives—from data exploration to deployment and iteration. You will build predictive, recommendation, ranking, and uplift models for customer personalization and decisioning.

Prepare datasets, define targets, and ensure data quality for training and evaluation. Design A/B tests and online/offline evaluations to quantify business impact and work with engineers and product teams to

Qualifications

• Two or more years of professional experience in applied machine learning, data science, ML engineering, applied statistics, or a related field.
• Experience analyzing behavioral, transactional, product, marketing, or customer data and translating findings into practical insights or recommendations.
• Experience defining success metrics, analyzing experiments, evaluating model performance, and interpreting business impact.
• Experience working with engineering, product, analytics, or business partners to deploy or apply data-driven solutions.
• Experience with personalization, recommendation, ranking, uplift modeling, causal inference, contextual bandits, pricing, or lifecycle decisioning is a plus.

Responsibilities

• Own well-defined machine learning projects from data exploration to deployment and iteration.
• Build and improve predictive, recommendation, ranking, segmentation, uplift, and customer-value models for personalization and decisioning.
• Prepare datasets, define targets, develop features, and ensure data quality for training and evaluation.
• Design and analyze A/B tests, holdouts, and offline evaluations to measure model performance and business impact.
• Collaborate with engineering, product, analytics, and business partners to productionize models and iterate based on results.

Skills

Applied Machine Learning

Data Analytics

Python Programming

SQL Proficiency

Experimentation

Collaboration

Communication

Growth Mindset

Education

Flexible degree requirement

Tools

BigQuery

Spark

ML Libraries

Cloud Data Platforms

AI Coding Assistants

Job description

Jobtailor in Mountain View is seeking a data-driven machine learning professional to own end-to-end modeling initiatives—from data exploration to deployment and iteration. You will build predictive, recommendation, ranking, and uplift models for customer personalization and decisioning.

Prepare datasets, define targets, and ensure data quality for training and evaluation. Design A/B tests and online/offline evaluations to quantify business impact and work with engineers and product teams to