Senior Database Architect - High-Performance

Jobtailor; Kraków; On-site; PLN 320,000 - 520,000; Full time

Job summary

Jobtailor is seeking a senior database engineer to lead and implement advanced database solutions within an agile team in Kraków. You will optimize, secure, and scale RDBMS-based systems, design data models, and collaborate across engineering, product, QA, and sales to modernize the platform.

The role requires strong SQL performance tuning, architecture experience, and the ability to deliver production-quality software on schedule. Collaboration with cross-functional teams is essential.

Qualifications

• 10+ years of professional software engineering experience with enterprise applications backed with RDBMS databases.
• 5+ years as a Database Architect or similar role.
• Hands-on experience in RDBMS and distributed data platforms as a database developer.
• Strong analytical and problem-solving skills.
• Proficiency in SQL performance tuning in MS SQL Server.
• Track record of building high-performance software on schedule.
• Ability to work independently and manage multiple tasks.
• Excellent verbal and written communication with stakeholders.
• Experience with cloud databases and Agile development is desired.

Responsibilities

• Lead development and maintenance of one or more Charles River IMS modules within an agile scrum team.
• Contribute to optimization, resiliency, and performance improvements for clients.
• Collaborate with engineering, product, QA and sales to drive platform modernization.
• Design scalable, performant distributed database solutions.
• Create and maintain documentation for data models, configurations, and processes.
• Write complex SQL queries, stored procedures, and scripts to support applications.
• Tune performance via indexing and SQL optimization; monitor bottlenecks.
• Define performance test strategies and develop data generation toolsets for tests.
• Implement and manage database security, access controls, encryption, auditing.
• Troubleshoot production issues with DBA teams; ensure data integrity and DR.
• Maintain database health and perform installations, configurations, upgrades in lower environments.

Skills

RDBMS

Distributed data

SQL tuning

MS SQL Server

Azure SQL

NoSQL

Agile

Database design

Data security

Troubleshooting

Communication

Tools

MS SQL Server

Azure SQL Database

Job description

Jobtailor is seeking a senior database engineer to lead and implement advanced database solutions within an agile team in Kraków. You will optimize, secure, and scale RDBMS-based systems, design data models, and collaborate across engineering, product, QA, and sales to modernize the platform.

The role requires strong SQL performance tuning, architecture experience, and the ability to deliver production-quality software on schedule. Collaboration with cross-functional teams is essential.