Senior SQL Developer

Ethereum Technologies; Columbus (OH); On-site; USD 90,000 - 130,000; Full time

Job summary

Ethereum Technologies in Columbus, OH is seeking an experienced SQL Developer to design, develop, and maintain enterprise database solutions that support critical reporting and applications.

You will write complex SQL, implement stored procedures and data models, and collaborate with developers and analysts to ensure data accuracy, performance, and reliability across environments. A strong background in SQL Server, Oracle, PostgreSQL, or MySQL is required.

Qualifications

• 4+ years of SQL development or database engineering.
• Experience with enterprise relational databases.
• Ability to develop complex queries and troubleshoot performance.
• Understanding of SDLC practices.
• Strong analytical and problem-solving skills.
• Team collaboration with developers and analysts.

Responsibilities

• Develop and maintain complex SQL queries, stored procedures, and functions.
• Design and optimize database structures to support applications.
• Analyze query execution plans and improve performance.
• Troubleshoot data defects and ensure data quality.
• Build data ETL processes and data integration.
• Support migrations, upgrades, and integrations.
• Maintain documentation and coding standards.
• Ensure data security and reliability across environments.

Skills

SQL development

Relational databases

Complex queries

Stored procedures

Triggers

Views

Query optimization

Execution plans

Indexing

Performance tuning

Data modeling

Normalization

ETL processes

Data integration

Data validation

Data security

Power BI

SSRS/Tableau

Python scripting

PowerShell scripting

Education

Bachelor's degree in Computer Science or related

Master's degree

Tools

Microsoft SQL Server

Oracle Database

PostgreSQL

MySQL

Job description

Ethereum Technologies in Columbus, OH is seeking an experienced SQL Developer to design, develop, and maintain enterprise database solutions that support critical reporting and applications.

You will write complex SQL, implement stored procedures and data models, and collaborate with developers and analysts to ensure data accuracy, performance, and reliability across environments. A strong background in SQL Server, Oracle, PostgreSQL, or MySQL is required.