AI & Machine Learning Engineer I

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

• Own well-defined machine learning projects from data exploration and model development through validation, deployment, and iteration.
• Build and improve predictive, recommendation, ranking, segmentation, uplift, and customer-value models for customer personalization and decisioning.
• Prepare datasets, define modeling 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.
• Work with engineering, product, analytics, and business partners to integrate models into production and improve them based on results and feedback.
• Use AI coding assistants, automation, and reusable tools to improve the speed, quality, and consistency of modeling and analytical workflows.

Requirements

• Degree requirements are flexible. A technical degree in Computer Science, Data Science, Statistics, Mathematics, Operations Research, Economics, Engineering, or a related field is helpful, but equivalent practical experience is equally valued.
• Applied ML and model development: Two or more years of professional experience in applied machine learning, data science, ML engineering, applied statistics, or a related field, including experience building and evaluating models with real-world data.
• Data analytics: Experience analyzing behavioral, transactional, product, marketing, or customer data and translating findings into practical insights or recommendations.
• Experimentation: Experience defining success metrics, analyzing experiments, evaluating model performance, and interpreting business impact.
• Collaborative delivery: Experience working with engineering, product, analytics, or business partners to deploy or apply data-driven solutions.
• Relevant specialization: Experience with personalization, recommendation, ranking, uplift modeling, causal inference, contextual bandits, pricing, or lifecycle decisioning is a plus.
• Machine learning and modeling: Strong Python skills and practical knowledge of supervised learning, model selection, hyperparameter tuning, evaluation, and performance analysis.
• Data processing and feature engineering: Strong SQL skills and experience using platforms such as BigQuery, Spark, or similar tools for data extraction, cleaning, preprocessing, exploration, and feature development.
• Analytics and experimentation: Strong analytical and statistical reasoning, including A/B testing, holdout design, statistical significance, incrementally, and business-impact measurement.
• Technical tools and workflows: Familiarity with common ML libraries, cloud data or ML platforms, version control, and AI-assisted development tools.
• Ownership mindset: Takes responsibility for assigned work, follows through on commitments, and proactively addresses issues.
• Business-impact orientation: Connects modeling and analysis to customer experience and measurable outcomes.
• AI-first builder mindset: Enjoys modeling, analyzing, automating, and shipping while using AI tools to improve productivity and quality.
• Growth mindset: Learns quickly, seeks feedback, and continuously develops technical and business knowledge.
• Clear, collaborative communication: Communicates ideas, assumptions, results, and challenges effectively with technical and non-technical partners.

Core Competencies

Demonstrates expertise in applied machine learning, data analytics, and model development, with strong skills in Python and SQL for data processing and feature engineering. Proven ability to collaborate with cross-functional teams to deploy data-driven solutions and measure business impact through experimentation and analytics.

Highest-signal resume keywords

• Applied Machine Learning
• Data Analytics
• Model Development
• Python Programming
• SQL Proficiency

ATS Optimization Keywords

Hard Skills

• Machine Learning
• Model Evaluation
• Feature Engineering
• A/B Testing
• Statistical Analysis
• Hyperparameter Tuning
• Data Processing
• Predictive Modeling
• Recommendation Systems
• Causal Inference

Soft Skills

• Collaborative Communication
• Ownership Mindset
• Growth Mindset

Industry Keywords

• Customer Personalization
• Decisioning
• Business Impact Measurement
• Behavioral Data Analysis
• Transactional Data Analysis

Tools & Technologies

• BigQuery
• Spark
• ML Libraries
• Cloud Data Platforms
• AI Coding Assistants