Senior Database Developer

NXGATHA TECHNOLOGIES; Kolkata District; On-site; INR 2,800,000 - 4,000,000; Full time

Job summary

NXGATHA TECHNOLOGIES in Kolkata seeks a Senior SQL Database Developer to design, develop, and maintain complex SQL databases ensuring performance, security, and scalability.

The role requires deep SQL expertise, experience with Microsoft SQL Server/Azure SQL, and strong data integration and ETL capabilities. Collaboration with developers and analysts is essential for delivering robust data solutions.

Qualifications

• Bachelor's degree in computer science, information technology, or a related field.
• 5–10 years of experience in SQL development and database management.
• Proven experience with large-scale SQL databases (Microsoft SQL Server, Azure SQL Server).
• Strong proficiency in SQL, including complex queries, joins, subqueries, indexing, and optimization.
• Experience with database security, data integration, and ETL processes.
• Familiarity with version control tools such as Git.
• Excellent communication skills, both written and verbal.

Responsibilities

• Develop and maintain complex SQL queries, stored procedures, triggers, functions and views.
• Design, implement, and optimize relational database schemas.
• Analyze query performance and optimize SQL statements for efficiency.
• Lead data integration efforts between multiple data sources.
• Support data migration projects and data import/export between systems.
• Collaborate with developers, data architects, and analysts to deliver solutions.
• Identify and resolve complex database issues related to performance and data integrity.
• Provide production support and rapid issue resolution for critical databases.
• Document database structures and processes to ensure consistency and standards.
• Provide status reports and performance insights to management.

Skills

SQL development

performance tuning

database design

data integration

ETL processes

Git

communication

problem solving

independent work

Education

Bachelor's degree in CS/IT

Tools

SQL Profiler

New Relic

SolarWinds

Job description

Position Overview: We are seeking a highly skilled and experienced Senior SQL Database Developer to join our team. The ideal candidate will be responsible for designing, developing, and maintaining complex SQL databases, ensuring their efficiency, security, and scalability. This position requires deep expertise in SQL development, performance tuning, database design, and optimization, along with a solid understanding of database architecture and troubleshooting. The Senior SQL Database Developer will work closely with cross-functional teams to ensure the successful delivery of high-quality data solutions.

Key Responsibilities

• Develop and maintain complex SQL queries, stored procedures, triggers, function and views.
• Design, implement, and optimize relational database schemas.
• Analyse query performance and optimize SQL statements for maximum efficiency.
• Lead data integration efforts between multiple data sources, ensuring accurate data flow and consistency.
• Support data migration projects, converting and importing data between systems.
• Work closely with application developers, data architects, business analysts, and other stakeholders to deliver database solutions.
• Identify and resolve complex database issues related to performance, functionality, and data integrity.
• Provide support for production database environments and resolve urgent database issues quickly.
• Document database structures, processes, and procedures to ensure consistency and compliance with internal standards.
• Provide status reports, performance insights, and recommendations to management.

Educational Qualifications

• Bachelor's degree in computer science, Information Technology, or a related field (or equivalent work experience).

Work Experience

• Minimum of 5-10 years of experience in SQL development and database management.
• Proven experience working with large-scale SQL databases (Microsoft SQL Server, Azure SQL Server).
• Strong proficiency in SQL, including complex queries, joins, subqueries, indexing, and optimization.
• Experience with SQL Server, T-SQL, or other relational database management systems.
• Expertise in database performance tuning, troubleshooting, and query optimization.
• Strong knowledge of database security best practices (user roles, encryption, etc.).
• Experience with data integration and ETL processes.
• Familiarity with version control tools such as Git.
• Strong analytical and problem-solving abilities.
• Ability to work independently and as part of a team.
• Excellent communication skills, both written and verbal.
• Strong attention to detail and ability to handle complex tasks with minimal supervision.

Preferred Skills

• Experience with AZURE SQL Server, SQL Server.
• Knowledge of database monitoring tools (SQL Profiler, New Relic, SolarWinds).
• Familiarity with DevOps practices and CI/CD pipelines related to database development.
• Experience in agile or scrum development environments.