Posh · 2 days ago
Senior Data Scientist
NYC Metro Area
Full-time
Onsite
Senior Level
5+ years expPosh is a company focused on building real-life communities based on shared interests, combating digital loneliness. They are seeking a Senior Data Scientist to lead the development of their personalization and recommendation system, shaping the technical direction of modeling strategy and ensuring data quality and governance.
Consumer SoftwareEvent ManagementTicketing
Responsibilities
Designing and Preparing High-Quality Data for Personalization Models: Own the process of data cleaning, feature selection, and model selection to build a high-performing personalization model. Ensure all inputs into personalization algorithms are reliable, well-structured, and optimized for downstream ML performance
Building and Maintaining Scalable Pipelines for Modeling Data: Develop robust ETL/ELT pipelines that transform raw behavioral, transactional, and catalog data into features for recommendation systems. Continuously iterate to improve data freshness and coverage using SQL and Python
Optimizing Infrastructure to Support ML Personalization at Scale: Enhance data architecture and processing frameworks to support real-time and batch modeling needs
Ensuring Strong Data Governance and Documentation: Implement best practices for data quality, documentation, observability, and lineage across all model-bound datasets
Collaborating with Product and Engineering on Instrumentation & Feature Tracking: Work closely with Engineering to ensure accurate tracking and logging of user actions and product interactions needed for personalization systems. Partner with Product to translate business needs into feature definitions and modeling requirements
Optimizing Classification Models: Develop, refine, and optimize classification models that accurately categorize events. Improve signal quality through feature engineering, tuning, sampling, and continuous iteration to ensure accurate tagging that powers downstream personalization algorithms
Qualification
Required
Possesses 5+ Years of full time Data Experience
Expert in SQL and Python
Strong Ability to Analyze and Evaluate Models
Experience Building Personalization and Recommendation Systems
Proficient with Modern Data and ML Tooling
Has a Background in Early Stage Data Team
Preferred
Experience with AWS Personalize, SageMaker, or similar cloud ML platforms
Experience working on consumer-facing products operating at scale
Company
Posh
Create and discover events. Find your world.
51-200 employees
H1B Sponsorship
Posh has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (1)
Funding
Current Stage
Growth StageTotal Funding
$31.02MKey Investors
Goodwater CapitalPareto Holdings
2024-07-23Series A· $22M
2023-12-12Undisclosed· $4M
2023-04-27Seed· $3.5M
Leadership Team
Eli Taylor-Lemire
Co-Founder / Chief Technology Officer
Varun Goel
Strategic Partner, Seed Investor
Recent News
Business Insider
2025-10-15
Business Insider
2025-06-13
Company data provided by crunchbase