Sales Engineer
DBeaver
CloudNode.jsNoSQLPostgresSQL
Database Performance Engineer, PostgreSQL
Coopers Group AG
contract
Posted on:
Origin: • 🇨🇭 Switzerland
Visit company websiteJob Level
Mid-LevelSenior
Tech Stack
.NETNode.jsPostgresSQL
About the role
- Analyze ingestion and transformation workloads to identify performance bottlenecks and inefficiencies
- Evaluate the use of Citus vs. native PostgreSQL features, especially in single-node setups
- Conduct performance experiments comparing columnar and row-based storage
- Optimize query planning, indexing, parallelization, and memory/I/O usage
- Develop improved ingestion and transformation patterns using PostgreSQL and Citus features
- Set up and enhance observability tools (e.g., pg_stat_statements, auto_explain, pgBadger)
- Deliver actionable recommendations to improve performance, scalability, and maintainability
Requirements
- Deep expertise in PostgreSQL internals and query handling
- Strong understanding of database performance, data management, and SQL optimization
- Experience with analytical workloads and update-heavy scenarios
- Hands-on experience designing and interpreting performance experiments
- Familiarity with observability tools and performance metrics (pg_stat_statements, auto_explain, pgBadger)
- Strong SQL and data modeling skills
- Experience with Citus (including columnar storage) is a strong plus
- Fluent in English
- Motivated and open-minded
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