Role: L3 Database Administrator (Snowflake / PostgreSQL / Greenplum)
Location: Glasgow (Hybrid – 3 days onsite per week)
Type: Contract (12 months)
Industry: Financial Services (Confidential Client)
Rate: £425 per day (Inside IR35)
We are seeking an experienced L3 Database Administrator to join a large-scale enterprise data environment within the financial services sector. The role focuses on administration, optimisation, and support of PostgreSQL, Greenplum, and Snowflake platforms in a complex, data-intensive environment.
This is a hands-on technical role requiring deep expertise across database administration, performance tuning, data engineering support, and cloud-based data platforms.
Key Responsibilities
- Administer, maintain, and support PostgreSQL, Greenplum, and Snowflake database environments
- Manage database provisioning, upgrades, patching, and lifecycle activities
- Design and support scalable data models and architectures within Snowflake
- Work with data ingestion pipelines using tools such as Informatica or Talend
- Manage data migration activities using tools such as gpcopy with minimal downtime
- Perform performance tuning, query optimisation, and database health checks
- Handle database backup, recovery, and high availability strategies (including Patroni-based setups)
- Monitor and manage database bloat, statistics, and system performance
- Support troubleshooting using Greenplum utilities such as gpload, PXF, and GP-related tooling
- Automate database operations using Shell scripting, Python, or Ansible
- Work with structured and semi-structured data formats (JSON, XML, CSV)
- Ensure security, compliance, and operational best practices across environments
- Collaborate with engineering teams on ETL processes and data workflows
- Support cloud-based deployments across AWS, Azure, or GCP environments
Essential Skills
- Strong DBA experience across PostgreSQL, Snowflake, and Greenplum
- Advanced SQL and complex query writing
- Experience with PostgreSQL administration (provisioning, upgrades, maintenance)
- Greenplum expertise including performance tuning, gpcopy, and system optimisation
- Snowflake experience including roles, schemas, data modelling, and architecture
- Strong scripting skills in Shell, Python, or Ansible
- Experience with Patroni and streaming replication for high availability
- Strong understanding of data pipelines and ETL concepts
Desirable Skills
- Experience with ETL tools such as Informatica or Talend
- Cloud platform experience (AWS / Azure / GCP)
- Exposure to large-scale enterprise data environments