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NTT DATA Logo NTT DATA · IT - Software Development

Senior SQL Developer

United States, Addison · Job Posted February 19, 2026
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Job Description

The Senior SQL Developer role at NTT DATA requires over 8 years of experience in SQL Server and T-SQL, focusing on query optimization and performance tuning. The candidate will work closely with application and API teams to enhance database performance and reliability. Strong communication and analytical skills are essential for success in this position.

Job Responsibility

  • Analyze, optimize, and tune complex T-SQL queries for performance and scalability
  • Refactor and rewrite legacy stored procedures, views, functions, and triggers to improve execution efficiency and maintainability
  • Optimize database access patterns used by API-driven applications
  • Design and optimize indexing strategies (clustered, non-clustered, filtered as appropriate)
  • Identify performance bottlenecks caused by API call patterns, excessive round-trips, or inefficient parameter usage
  • Tune stored procedures consumed by RESTful or service-based APIs
  • Enforce T-SQL best practices and performance-focused coding standards
  • Collaborate with API and application developers
  • Provide guidance on best practices for calling stored procedures from APIs
  • Clearly communicate database performance findings and recommendations to both technical and non-technical stakeholders

Requirements

  • 5+yrs expertise in Microsoft SQL Server (2016–2022)
  • 5+yrs proficiency in T-SQL
  • 3 +yrs experience in query optimization and performance tuning
  • 3 +yrs Hands-on experience rewriting complex stored procedures, views, functions, and triggers
  • 3 + yrs Solid understanding of API-to-database interaction patterns (e.g., REST APIs calling stored procedures)
  • Strong knowledge of execution plans, indexing strategies, statistics, and SQL Server optimizer behavior
  • Excellent communication skills, especially when working with application and API teams
  • Strong analytical and troubleshooting abilities
  • Ability to work independently while collaborating across teams
  • Proactive mindset toward performance and reliability improvements
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