Senior Data Scientist (Machine Learning)

Location: 1375 Crossman Avenue, Sunnyvale, CA 94089, United States

Salary: $168,917–$234,000 per year, plus annual or quarterly performance incentives

Company

hirify.global develops data-driven solutions supporting Walmart eCommerce and business operations.

What you will do

• Develop custom statistical and machine learning models, algorithms, and datasets for business and eCommerce solutions.
• Build complex datasets from internal and external sources and analyze large-scale continuous and offline data flows.
• Train, validate, test, and scale algorithms for prediction, search, and future data analysis.
• Apply advanced statistical analysis to identify trends, relationships, and required improvements.
• Research industry techniques and use technologies such as Hadoop, HBase, MapReduce, LAPack, and Gurobi.
• Provide analytical support on project teams and collaborate with cross-functional business partners.

Requirements

• Master’s degree or equivalent in Statistics, Economics, Analytics, Mathematics, Computer Science, Information Technology, or a related field plus 1 year of analytics-related experience; OR a bachelor’s degree or equivalent in one of these fields plus 3 years of analytics-related experience.
• Experience with graphical models, Bayesian inference, neural networks, SVM, random forest, and other statistical modeling techniques.
• Experience coding in object-oriented programming languages and statistical tools, including Python and R.
• Experience with Newton-Raphson, gradient descent, linear programming, integer programming, and quadratic programming.
• Experience with SQL and NoSQL databases, distributed datastores, Hadoop, Spark, and Hive.
• Experience with data visualization tools including ggplot, Matplotlib, Plotly, Tableau, and Power BI.
• Experience with data management, data quality standards, data governance, accessibility, storage, and scalability.
• Experience with NLP tasks such as text classification and sentiment analysis using NLTK, spaCy, and Gensim.
• Experience designing, implementing, and managing vector databases, including vector similarity search and indexing.
• Experience with TensorFlow, PyTorch, model evaluation, data drift detection, Git/GitHub, and CI/CD pipelines.
• Any amount of graduate coursework, graduate research experience, or professional experience with the required skills is acceptable.

Culture & Benefits

• Full-time employee position with medical, vision, and dental coverage.
• Benefits include 401(k), stock purchase, company-paid life insurance, PTO including sick leave, parental and family care leave, and other paid leave.
• Additional benefits include short- and long-term disability, education assistance with 100% company-paid college degrees, discounts, military service pay, and adoption expense reimbursement.
• Performance-based incentive awards may be paid annually or quarterly.
• Equal opportunity employer with a drug-free workplace and no-tolerance policy for illegal drugs and alcohol on the job.