Senior Database Administrator Jobs

Dexory Using

Location:
United Kingdom, Wallingford

Category:
IT - Administration

Contract Type:
Not provided

Salary:

Not provided

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Job Description:

We're seeking an experienced PostgreSQL DBA to help us scale our rapidly growing warehouse robotics platform. We have a terabyte-scale database, and we're experiencing ongoing growth with associated scaling challenges. We need someone who can help us architect and implement scaling strategies to support continued growth while maintaining performance, and take an advisory role on data architecture.

Job Responsibility:

Understand growth estimates and design scaling strategies for largest tables
Optimize existing indexes and query patterns
Establish monitoring and alerting for performance regressions
Develop capacity planning based on customer growth
Query performance analysis and optimization for complex analytical workloads
Index strategy and maintenance
Design and implement data archival/retention policies
Tuning for tables with high write volume
Connection pooling and configuration tuning
Maintain backup/recovery strategy and testing
Working with development team on schema design and migrations
On-call rotation for database incidents

Requirements:

Experience as a PostgreSQL DBA
Ability to architect and implement scaling strategies for terabyte-scale databases
Strong opinions on scaling architectures (partitioning, sharding, data-warehousing/iceberg)
Proven track record of implementing scaling solutions on deployed production systems
Ability to optimize indexes and query patterns
Experience with query performance analysis and optimization for complex analytical workloads
Experience with index strategy and maintenance
Experience designing and implementing data archival/retention policies
Experience tuning for tables with high write volume
Experience with connection pooling and configuration tuning
Experience maintaining backup/recovery strategy and testing
Experience working with development teams on schema design and migrations
Willingness to participate in on-call rotation for database incidents
Must be located in the UK
Cannot provide sponsorship for this role

What we offer:

Private healthcare via Bupa with 24/7 medical helpline
Life insurance
Income protection
Pension: 4+% employee with option to opt into salary exchange, 5% employer
Employee Assistance Programme - mental wellbeing, financial and legal advice/support
25 holidays per year
Full meals onsite in Wallingford
Fun team events on and offsite
Snacks of all kinds in the office

Additional Information:

Job Posted:
December 08, 2025

Employment Type:

Fulltime

Work Type:

Remote work

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Senior Database Administrator