Senior Database Developer: SQL Performance & Architecture

Valiant Technologies LLC; Columbus (OH); On-site; USD 100,000 - 160,000; Full time

Job summary

Valiant Technologies LLC is seeking an experienced Database Developer to design, develop, and optimize database solutions using SQL Server, Oracle, or PostgreSQL. The role emphasizes complex queries, performance tuning, and data integrity.

You will collaborate with application teams, implement ETL processes, and ensure reliable data access across systems. A strong background in database design and troubleshooting is essential.

Qualifications

• 8–10 years of database development and SQL programming.
• Proficiency with complex SQL queries, joins, subqueries, CTEs, and window functions.
• Hands-on experience with stored procedures, functions, triggers, and optimization.
• Experience with SQL Server, Oracle, or PostgreSQL.
• Strong knowledge of database design, indexing, execution plans, and performance tuning.
• Familiarity with data modeling, ETL processes, and data integrity.
• Excellent analytical, troubleshooting, and problem-solving skills.

Responsibilities

• Design, develop, and maintain database objects, including tables, views, stored procedures, functions, and triggers.
• Write and optimize complex SQL queries for performance and scalability.
• Perform database performance tuning, query optimization, and troubleshooting.
• Develop and maintain data integration and data processing solutions.
• Ensure data integrity, consistency, security, and availability.
• Collaborate with application developers, business analysts, and other technical teams.
• Support database testing, deployment, documentation, and production issue resolution.

Skills

10 years of experience in DB dev & SQL

Advanced SQL queries

Stored procedures & triggers

Relational databases design

Performance tuning

Data modeling & ETL

Analytical problem solving

Tools

SQL Server

Oracle

PostgreSQL

Job description

Valiant Technologies LLC is seeking an experienced Database Developer to design, develop, and optimize database solutions using SQL Server, Oracle, or PostgreSQL. The role emphasizes complex queries, performance tuning, and data integrity.

You will collaborate with application teams, implement ETL processes, and ensure reliable data access across systems. A strong background in database design and troubleshooting is essential.