Data Scientist IV

Job Title: Senior Data Scientist Location: Remote (U.S. only, based out of California) Hourly Pay Rate: $55/hr W2 only Contract Duration: 9 months (full-time, 40 hours per week) Introduction We are seeking a Senior Data Scientist with deep expertise in machine learning, statistical modeling, and large-scale data analysis. This is a high-impact role supporting an advertising platform, where you will optimize ad targeting, improve auction performance, and deliver data-driven insights that directly influence business outcomes. The ideal candidate is technically strong in Python and SQL, has a strong product mindset, and thrives in cross-functional collaboration with engineers, product managers, and other data scientists. Required Skills & Qualifications • Minimum 5+ years of professional experience in data science, machine learning, or statistical modeling • Strong proficiency in Python and SQL (advanced level required) • Hands-on experience with big data tools and platforms (e.g., Spark, Airflow, AWS/GCP) • Proven expertise in developing and deploying machine learning models and advanced analytics solutions • Strong product sense and the ability to partner effectively with cross-functional teams • Excellent communication skills, with the ability to present findings to technical and non-technical stakeholders • Must be authorized to work in the U.S. on a W2 basis (no C2C or sponsorship) Preferred Skills & Qualifications • Experience with ML frameworks and libraries: TensorFlow, PyTorch, Scikit-learn • Proficiency with data manipulation and analysis tools (Pandas, NumPy) • Familiarity with data visualization and reporting tools (e.g., Tableau) • Background in advertising, ad tech, or marketplace platforms • Leadership experience mentoring or guiding junior data scientists Day-to-Day Responsibilities • Design, develop, and apply machine learning and statistical models to improve ad platform performance • Analyze large-scale datasets to uncover trends, patterns, and actionable insights • Collaborate with engineers and product managers to translate business needs into technical data solutions • Build models and methods to improve targeting, anomaly detection, prediction, and pattern recognition • Deliver clear, data-driven recommendations to stakeholders across teams • Stay up to date on advancements in ML, data science, and emerging technologies • Mentor junior data scientists, contributing to team development and knowledge sharing Company Benefits & Culture • Competitive W2 hourly pay with long-term project potential • 100% remote role with cross-functional collaboration • Opportunity to work on cutting-edge problems in ads targeting, relevance, auction optimization, and measurement • Highly collaborative, growth-focused environment of data scientists and engineers • Chance to make a measurable business impact through innovation in machine learning and data science #TECH #Remote