PostgreSQL DBA

NSD; Greater London; Hybrid; GBP 54,000 - 66,000; Full time

Benefits offered by this job

Hybrid work pattern

Permanent position

Job summary

NSD in Northwood, London is seeking a permanent Database Administrator with strong PostgreSQL and Oracle expertise. The role covers both cloud and on‑prem environments, focusing on performance tuning, clustered failover, and robust data modelling.

Collaboration with development and infra teams is essential, with a hybrid working pattern in place. The role requires hands-on PostgreSQL and Oracle experience, with a view to managing diverse data sources and implementing reliable backup/recovery

Qualifications

• Must have hands-on PostgreSQL DBA experience beyond basic exposure.
• Experience with Oracle 19c or 21c is required.
• Strong PostgreSQL performance tuning experience including index tuning and query optimisation.
• Experience managing PostgreSQL/Oracle clusters and failover.
• Solid data modelling experience.
• Collaborative with development and infra teams.

Responsibilities

• Own application database environments across cloud and on‑premise.
• Manage PostgreSQL database clusters across environments.
• Monitor, tune, and optimise PostgreSQL performance.
• Administer and maintain Oracle 19c/21c databases.
• Manage data migrations between database instances, including offline environments.
• Own data models and lifecycle within the database.
• Design, create, and manage schemas, tables, and views.
• Optimise performance through index tuning, plan analysis, and partitioning.
• Manage database clusters and failover strategies.
• Define and implement backup and recovery strategies.
• Manage security, roles, permissions, and RLS controls.
• Collaborate with infrastructure on installation and patching.
• Work with data pipeline engineers/scientists to ingest diverse data sources.
• Apply best practices for storing JSON objects in PostgreSQL.

Skills

PostgreSQL

Oracle

DBA experience

Performance tuning

Index tuning

Cluster management

Data modelling

JSON storage

Security & RLS

Job description

Salary: £60,000 - 60,000 per year

Requirements:

• Were seeking strong hands-on DBA experience across PostgreSQL and Oracle.
• We require recent, meaningful PostgreSQL DBA experience beyond basic exposure, installation, or support-level knowledge.
• We require hands‑on experience with Oracle 19c or 21c.
• We require PostgreSQL performance optimisation experience, including index tuning, execution plan analysis, query optimisation, sharding, and partitioning.
• We require experience managing database clusters and failover.
• We require strong data modelling experience.
• We require experience working closely with development and infrastructure teams.
• Experience with PostgreSQL extensions such as pgvector, PostGIS, or AGE would be beneficial.
• Additional MSSQL experience would be useful.
• The source specifies SC clearance as preferred and also as a minimum, with DV targeted.
• We require single British nationality and the ability to meet UK residency criteria for security clearance.

Responsibilities:

• We expect you to take ownership of application database environments across cloud and on-premise environments, working with developers, data pipeline engineers, data scientists, and infrastructure teams.
• Manage PostgreSQL database clusters across multiple environments.
• Monitor, tune, and optimise PostgreSQL database performance.
• Administer and maintain Oracle 19c or 21c databases.
• Manage data migrations between database instances, including offline environments.
• Own data models and the lifecycle of data within the database.
• Design, create, and manage schemas, tables, and views.
• Optimise performance through index tuning, execution plan analysis, query optimisation, and partitioning.
• Manage database clusters and failover strategies.
• Define and implement backup and recovery strategies.
• Manage database security, roles, permissions, and RLS controls.
• Work with infrastructure teams on database installation and patching.
• Work with data pipeline engineers and data scientists to ingest a wide range of data sources.
• Apply best practices for storing JSON objects in PostgreSQL.

Technologies:

• Cloud
• Support
• JSON
• Oracle
• PostgreSQL
• Security

More:

Were a leading technology organisation hiring a permanent Database Administrator for our team in Northwood, London. The salary is £55,000–£60,000 plus benefits, and the working pattern is hybrid, with a minimum of two days per week in the office. This opportunity is suited to either a PostgreSQL DBA with strong Oracle experience or an Oracle DBA with recent, meaningful PostgreSQL DBA experience. Candidates will need to demonstrate hands‑on experience across both technologies in a technical interview.

last updated 40 week of 2026