Senior DBA & Platform Engineer - OLAP Data Platform

Talent Focus Executive Search and Consulting; Belfast City District; Hybrid; GBP 70,000 - 100,000; Full time

Benefits offered by this job

Health insurance

Generous holiday allowance

Flexible working hours

Hybrid working

Job summary

Talent Focus Executive Search and Consulting in Belfast, Northern Ireland, is seeking a Senior DBA / Platform Engineer to own the data store core of a growing security software platform. You will design and run OLAP data stores built on ClickHouse, PostgreSQL, and cloud object storage, joining a small, fast-moving engineering team to shape architecture from early on.

This role offers hybrid work with at least two days in the Belfast office, a chance to tackle billions-of-rows scale, optimize

Qualifications

• 5+ years in a DBA, data platform or similar engineering role.
• Hands-on OLAP experience.
• Deep knowledge of the MergeTree engine family: partitioning, TTLs, materialised views, Distributed tables and sharding.
• ETL/ELT pipeline design and operation, both batch and near-real-time.
• Experience using Parquet and object storage (Azure Blob or S3) as a query tier.
• Strong query performance tuning and capacity planning skills.
• Excellent SQL and solid PostgreSQL competence.
• A proactive, self-motivated approach, strong communication skills and attention to detail.

Responsibilities

• Design, build and operate OLAP data stores, including schema design, partitioning, sharding and lifecycle management.
• Build and run ETL/ELT pipelines for both batch and near-real-time workloads.
• Tune query performance and plan capacity as data volumes grow.
• Use Parquet and object storage (Azure Blob / S3) as a cost-efficient query tier.
• Work with engineers across the team on system integration and platform decisions.
• Hold the platform to a high standard of quality and reliability so clients get a superior experience.

Skills

OLAP systems

MergeTree engine

ETL/ELT pipelines

Parquet/Blob storage

SQL proficiency

PostgreSQL expertise

Performance tuning

Communication skills

Education

Bachelor's degree in Computer Science, Mathematics, Physics or related field

Tools

ClickHouse

PostgreSQL

Azure Blob Storage

Amazon S3

Job description

Talent Focus Executive Search and Consulting in Belfast, Northern Ireland, is seeking a Senior DBA / Platform Engineer to own the data store core of a growing security software platform. You will design and run OLAP data stores built on ClickHouse, PostgreSQL, and cloud object storage, joining a small, fast-moving engineering team to shape architecture from early on.

This role offers hybrid work with at least two days in the Belfast office, a chance to tackle billions-of-rows scale, optimize