Postgre SQL DBA

Limelight Health; Greater London; On-site; GBP 60,000 - 85,000; Full time

Job summary

Atos, via hackajob, is seeking a PostgreSQL database administrator to own and maintain the core data structures in a Postgres application across environments. You will work with the development team to define the data model for new data feeds and ensure performance and security of the database.

Hybrid work model is offered, with emphasis on ownership, collaboration with data engineers and data scientists, and ongoing optimization of data structures and migrations across environments.

Qualifications

• Experience as PostgreSQL DBA with core development and maintenance.
• Strong data modelling skills for data feeds.
• Experience with clustering, partitioning, backups and security controls.
• Ability to work with data pipeline engineers and data scientists.

Responsibilities

• Take responsibility for the application PostgreSQL database cluster across environments.
• Monitor and tune to optimise PostgreSQL database performance.
• Handle migration of data structures across database instances, including to offline environments.
• Own the data models and manage the lifecycle of data sitting within the Postgres database.
• Work closely with data pipeline engineers & data scientists to ingest a wide range of data sources.
• Manage security controls across environments, including defining roles & permissions, as well as RLS controls for the data.
• Work with the infrastructure team to configure installation and patching of the databases across all environments.

Skills

PostgreSQL DBA

Performance optimisation

Data modelling

Database clustering

Backup and recovery

SQL/PLpgSQL

Collaboration with data engineers

Security controls

RLS

Tools

pgvector

PostGIS

AGE

Oracle

MSSQL

Job description

hackajob is collaborating with Atos to connect them with exceptional professionals for this role.

We are looking for a PostgreSQL database administrator with strong data modeling skills to join our team. The role includes managing a Postgres application data store across environments, whilst working closely with the rest of the development team to define the data model for new data feeds. You will be responsible for the maintenance and performance of the database and have ownership of the core data structures used within the application.

Where Purpose Meets Career

Flexible Work Model -

Hybrid approach to balance productivity and employee well‑being

Team Coaching Impact -

Drive measurable contribution through strong team coaching and ownership.

Contribution / Impact -

Translate strategy into measurable results through ownership, accountability, and continuous improvement.

• Taking responsibility for the application PostgreSQL database cluster across multiple environments across cloud & on premises
• Monitoring and tuning to optimise PostgreSQL database performance
• Handling migration of data structures across database instances, including to offline environments
• Owning the data models and managing the lifecycle of data sitting within the Postgres database
• Working closely with data pipeline engineers & data scientists to ingest a wide range of data sources
• Managing security controls across environments, including defining roles & permissions, as well as RLS controls for the data
• Working directly with the infrastructure team to configure the installation and manage patching of the databases across all environments

Skills We Can’t Do Without

• Postgresql dba, core development / maintenance and performance optimisation (sharding, partitions). Experience with clustering, and extensions such as pgvector PostGIS, and AGE very useful.
• Additional skills in Oracle or MSSQL would also be required
• Strong PostgreSQL database management skills:
• Performance optimisation - index tuning, execution plan analysis, query optimisation, data partitioning
• Backup and recovery - Capable of defining backup strategies based on environment constraints
• Clustering - Experience with managing database clusters, including handling failover strategies
• Experience with data modelling: designing, creating & managing schemas, tables, and views to support the data models
• Understanding best practices for storing JSON objects within PostgreSQL
• Clear communication & ability to work collaboratively with developers to define & implement data model requirements