Senior SQL Developer - Client site Addison Texas

JOB DESCRIPTION

We are currently seeking a Senior SQL Developer - Client site Addison Texas to join our team in Addison, Texas (US-TX), United States (US).

Job Summary

We are seeking a highly experienced 8+ years in SQL Server / T-SQL Developer with deep expertise in query optimization, performance tuning, and refactoring complex database code, along with a strong understanding of how APIs interact with SQL Server stored procedures and databases.

The ideal candidate will work closely with application, API, and DBA teams to ensure that database logic is efficient, scalable, and correctly consumed by upstream services. This role plays a key part in improving performance, reliability, and maintainability across database-driven applications.

Key Responsibilities

• SQL Server Development & Optimization
• 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)
• Performance Tuning & API Interaction
• 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
• Code Quality & Standards
• Enforce T-SQL best practices and performance-focused coding standards
• Collaboration & Communication
• 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

Required Skills & Qualifications

Soft Skills

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

#LI-NorthAmerica

About NTT DATA

NTT DATA is a $30 billion business and technology services leader, serving 75% of the Fortune Global 100. We are committed to accelerating client success and positively impacting society through responsible innovation. We are one of the world's leading AI and digital infrastructure providers, with unmatched capabilities in enterprise-scale AI, cloud, security, connectivity, data centers and application services. our consulting and Industry solutions help organizations and society move confidently and sustainably into the digital future. As a Global Top Employer, we have experts in more than 50 countries. We also offer clients access to a robust ecosystem of innovation centers as well as established and start-up partners. NTT DATA is a part of NTT Group, which invests over $3 billion each year in R&D.