Senior SQL Developer

ExtensisHRManalapan, NJ
6d$120,000 - $160,000

About The Position

The Senior SQL Developer (SQL Server + PostgreSQL) will take full ownership of SQL development, performance tuning, execution plan analysis, and database structure improvements across both SQL Server and PostgreSQL environments.

Requirements

  • 7+ years of SQL development experience
  • Strong, senior-level expertise in SQL Server (T-SQL)
  • Strong experience with PostgreSQL (PL/pgSQL)
  • Deep knowledge of indexing, execution plans, statistics, and concurrency
  • Proven experience tuning large tables (millions to billions of rows)
  • Ability to independently gather requirements and deliver complete SQL solutions
  • Strong communication skills to work directly with product and engineering teams

Nice To Haves

  • Experience with AWS RDS / Aurora
  • Experience with high-availability, replication, or partitioning
  • Exposure to .NET or backend development patterns (bonus)

Responsibilities

  • Design and implement complex stored procedures, functions, and SQL scripts
  • Lead performance tuning across both SQL Server and PostgreSQL
  • Analyze and optimize execution plans, indexes, and schema design
  • Work independently with product team to translate requirements into efficient SQL solutions
  • Troubleshoot and resolve production performance issues
  • Support ETL processes, data pipelines, and staging systems
  • Maintain data quality, integrity, and consistent performance across environments
  • Recommend improvements to table structures, indexing strategies, and partitioning

Benefits

  • PTO
  • 401k sponsored plan
  • Health/Dental insurance
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