Senior SQL Server Developer (Hybrid/Remote) — High-Volume Data

Logifuture; Warszawa; Hybrid; PLN 190,000 - 240,000; Full time

Benefits offered by this job

Health insurance

Hybrid/Remote work

Flexible hours

Meal allowance

Job summary

Logifuture in Warszawa is seeking a Senior Database Developer with strong MS SQL Server and T-SQL expertise to design, develop, and optimise high-volume database solutions for critical systems.

You will work across development and DBA teams, implement best practices, and drive performance improvements, security, and data modelling efforts within a collaborative, hybrid work environment.

Qualifications

• 5+ years of database development with Microsoft SQL Server and T-SQL.
• Experience with .NET data access patterns and Dapper or similar ORM.
• Advanced knowledge of stored procedures, functions, triggers, views, indexes, and transactions.
• Strong experience analysing execution plans and identifying bottlenecks in high-volume systems.
• Understanding of indexing, locking, blocking, deadlocks, isolation levels and transactional consistency.
• Ability to design and optimise database solutions for performance, scalability, and reliability.
• Experience supporting production systems including monitoring, backups, maintenance plans, and security tasks.
• Nice to have iGaming sector experience.

Responsibilities

• Design, develop, and maintain efficient T-SQL code, including stored procedures, functions, triggers, and database scripts.
• Work on database design and data modelling activities, including high-throughput stored procedures for critical operations.
• Analyse, troubleshoot, and optimise complex queries, execution plans, indexes, and database objects to improve performance.
• Support Developers in writing efficient SQL queries and reviewing database-related changes before production.
• Support second-level support in analysis and resolution of escalated requests requiring database knowledge.
• Provide guidance on when SQL Server logic should remain, especially for high-volume operations.
• Contribute to standards, best practices, and review processes for database development.
• Define and contribute to data retention policies aligned with business and compliance.
• Act as a bridge between development and DBA to align application and DB needs.

Skills

MS SQL Server

T-SQL

.NET data access patterns

Dapper

Stored procedures

Indexes

Query optimisation

Query plans

Locking/Deadlocks

Data modelling

Database design

Production support

Backups/Monitoring

Security

Collaboration

Analytical thinking

iGaming experience

Tools

Dapper

Job description

Logifuture in Warszawa is seeking a Senior Database Developer with strong MS SQL Server and T-SQL expertise to design, develop, and optimise high-volume database solutions for critical systems.

You will work across development and DBA teams, implement best practices, and drive performance improvements, security, and data modelling efforts within a collaborative, hybrid work environment.