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Senior Snowflake Developer – Risk Technology (Contract)

ION Group

Salary not specified
Dec 23, 2025
Jersey City, NJ, US • New York, NY, US
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Lab49/ION is seeking to design, optimize, and enhance the Market Risk Time Series infrastructure built on Snowflake

Requirements

  • 7+ years of hands-on experience in developing applications using Relational Databases and Big-data platforms
  • Strong experience in schema design, micro-partitioning, clustering, and query optimization
  • Proficiency in Snowpark and stored procedures
  • Expert-level SQL for complex queries and performance tuning
  • Advanced Python for data engineering and integration

Responsibilities

  • Design and implement efficient and bi-temporal schemas leveraging micro-partitioning and clustering keys for optimal performance
  • Develop and optimize SQL queries, stored procedures, and Snowpark-based transformations
  • Implement query performance tuning and cost optimization strategies
  • Build and maintain Python-based ETL/ELT pipelines for sourcing historical market data from internal and external providers
  • Integrate with quant libraries to identify data quality issues and validate risk inputs
  • Detect and remediate common data quality issues (gaps, stale data, outliers)
  • Implement algorithms for gap-filling, back-filling, and anomaly correction to ensure data is fit for VaR and SVaR calculations

Other

  • Strong analytical and problem-solving skills, including the ability to troubleshoot and resolve complex data related issues
  • Strong verbal and written communication skills
  • Self-starter and entrepreneurial in approach
  • Ability to escalate and follow-up proactively
  • Good time management skills