Senior Data Scientist

Haystack News
United States
Workplace: HybridFull timeFunction: Data Science & Machine LearningExperience: 5+ yearsEducation: mastersSkills: ["Python","SQL","Pandas","NumPy","Statsmodels","Scikit-learn","LightGBM","XGBoost","PostgreSQL","Snowflake"]

Senior Data Scientist at Haystack News focused on building and deploying advanced statistical models and machine learning solutions to improve content discovery, user engagement, and retention. You will design experiments, apply causal inference, develop features using text and multimodal embeddings, and collaborate with ML engineers to translate insights into production systems. Ideal candidate has strong quantitative skills, extensive online recommender experience, and hands-on Python, SQL, and ML toolkit proficiency.

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Haystack News
Haystack News
4 months ago

Senior Data Scientist

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Last checked: 8 hours agoStatus: Live

Job Summary

Senior Data Scientist at Haystack News focused on building and deploying advanced statistical models and machine learning solutions to improve content discovery, user engagement, and retention. You will design experiments, apply causal inference, develop features using text and multimodal embeddings, and collaborate with ML engineers to translate insights into production systems. Ideal candidate has strong quantitative skills, extensive online recommender experience, and hands-on Python, SQL, and ML toolkit proficiency.
Location: United States
Workplace: Hybrid
Employment Type: Full time
Job Function: Data Science & Machine Learning

Key Responsibilities

  • •Build statistical and machine learning models to improve content discovery and user engagement.
  • •Work closely with ML engineers to translate models and insights into production systems.
  • •Have curiosity and apply analytical skills to dive deep into data to find key insights that would impact the business.
  • •Apply causal inference methods to understand the impact of potential product changes.
  • •Define and build new ML features using text and multimodal embeddings and GenAI.

Key Requirements

  • •PhD or M.S. in Computer Science, Mathematics, Electrical Engineering, Statistics, Economics or Operations Research with 5+ years of professional experience in data science, machine learning or related quantitative field
  • •3+ years of professional experience with large-scale online ranking/recommender systems (for news feeds, shopping, ads, music, etc)
  • •Deep expertise in statistical inference and experimental design: hypothesis testing, power/sample size calculations, variance reduction, etc.
Experience:5+ yearsData scienceMachine learningStatisticsRecommender systems
Education:Master's in Computer Science
Skills:PythonSQLPandasNumPyStatsmodelsScikit-learnLightGBMXGBoostPostgreSQLSnowflake
Tech Stack:PythonSQLPandasNumPyStatsModelsScikit-learnLightGBMXGBoostPostgreSQLSnowflakeDbtAirflowPyTorchTensorFlow

Company Brief

Haystack News
Haystack News is a free ad-supported OTT streaming news service that personalizes short video news from local, national and international partners across smart TVs, mobile and web, offering live channels and curated playlists.
Industry: News, Journalism & Broadcasting
Company Size: Small (11 to 50 employees)
Growth: Growth Stage Startup
Valuation: Under USD 50M
Headquarters: San Francisco, United States
Founded: 2013
Glassdoor
Glassdoor: 5.0
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