Senior Infrastructure Engineer (Database)

Salary: £41,509 - 52,109 per year

Requirements:

• Strong experience administering and supporting Oracle Database 19c environments, including performance monitoring, backup and recovery, routine maintenance, upgrades, and operational troubleshooting.
• Experience working with Oracle Active Data Guard, ensuring high availability, disaster recovery readiness, and replication monitoring.
• Good working knowledge of AWS Cloud services, with experience supporting database and infrastructure workloads in cloud-based environments.
• Familiarity with MongoDB Atlas, including deployment support, monitoring, and operational management activities.
• Familiarity with configuration management and automation tools such as Ansible to support deployment and operational activities.
• Experience managing database storage using Oracle ASM and supporting enterprise database infrastructure.
• Proficiency in Unix/Linux administration, particularly shell scripting for automation, monitoring, and operational support tasks.
• Experience working with CI/CD pipelines, including tools such as Concourse or similar platforms.
• Security clearance is essential, and you must have been in the UK for at least 3 out of the last 5 years to be eligible.
• We cannot offer visa sponsorship for this campaign.
• We will assess you against behaviours, experience, and technical skills during the selection process.

Responsibilities:

• Join our Infrastructure Engineering team as an experienced Senior Infrastructure Engineer (Database).
• Deliver, support, and evolve our database platforms, with a particular focus on Oracle and MongoDB technologies.
• Work across cloud-based and modern database environments, including Oracle on AWS, MongoDB Atlas, PostgreSQL, and automation tools.
• Help ensure our services remain secure, resilient, and highly available.
• Carry out database administration, performance optimisation, security, backup and recovery, monitoring, and support for major technology and business change initiatives.
• Define, build, bring into service, operate, support, and continually improve new and existing database technologies.
• Manage database configuration, maintain system access and security, and lead database upgrades and patching.
• Manage service availability by monitoring capacity and performing proactive performance tuning using Oracle OEM.
• Manage incidents, requests, changes, and problems, including root cause analysis and resolution.
• Maximise the use of tools and technologies and drive continuous improvement to deliver operational excellence.
• Participate in an on-call rota once fully trained and competent, and occasionally work overtime during weekdays and weekends.
• Attend our Cardiff or Edinburgh office on a regular basis, with occasional travel to Cardiff for team collaboration and business needs.

Technologies:

• AWS
• Ansible
• CI/CD
• Cloud
• Support
• Linux
• MongoDB
• Oracle
• PostgreSQL
• Security
• Unix
• Office 365

More:

We are Companies House, and we are offering an exciting permanent opportunity for an experienced Senior Infrastructure Engineer (Database) to join our Infrastructure Engineering team. The role is based in either our Cardiff or Edinburgh office, with regular hybrid working and an expectation to attend the office on a regular basis. We support a welcoming culture, healthy work-life balance, and employee wellbeing, and our benefits include flexible working with no core hours, 30 days annual leave, 8 bank holidays, 1 privilege day, and enrolment into the Civil Service Pension scheme with a 28.97% employer contribution. We are committed to diversity, inclusion, and fair recruitment, and we welcome applications from underrepresented groups and Welsh speakers.

last updated 30 week of 2026