Senior PostgreSQL Database Engineer — Remote, High-Impact

People More; Kraków; On-site; PLN 192,864 - 247,968; Full time

Job summary

People More is seeking a Senior Database Engineer specialized in PostgreSQL in Kraków, offering remote options. You design scalable database architectures, optimize queries, and implement replication and high-availability strategies for large-scale systems.

You will collaborate with developers, DevOps, and architects to ensure robust data solutions. Excellent knowledge of PostgreSQL, SQL, and data modeling is essential.

Qualifications

• Strong hands-on knowledge of PostgreSQL.
• Experience in designing and scaling databases used in real production systems.
• Very good knowledge of SQL, query plans, indexes, transactions, and locking mechanisms.
• Ability to independently diagnose and resolve database performance issues.
• Experience with replication, partitioning, backups, and high availability.
• Knowledge of multitenancy, data isolation, and row-level security.
• Ability to work effectively with developers, DevOps engineers, and architects.
• Very good English and Polish.

Responsibilities

• Designing PostgreSQL database architecture for large-scale systems.
• Scaling databases as the number of users, queries, and data volumes grows.
• Diagnosing and resolving database performance and stability issues.
• Optimizing SQL queries, indexes, data schemas, and PostgreSQL configuration.
• Analyzing query plans, transactions, locks, and concurrency issues.
• Designing replication, partitioning, and high-availability solutions.
• Supporting the team in data modeling and secure data isolation.
• Defining database monitoring, alerting, and capacity planning.

Skills

PostgreSQL

SQL

Performance tuning

Replication

High availability

Tools

GCP

Job description

People More is seeking a Senior Database Engineer specialized in PostgreSQL in Kraków, offering remote options. You design scalable database architectures, optimize queries, and implement replication and high-availability strategies for large-scale systems.

You will collaborate with developers, DevOps, and architects to ensure robust data solutions. Excellent knowledge of PostgreSQL, SQL, and data modeling is essential.