Senior Infrastructure Engineer (Database Development)

Job summary

As a Senior Infrastructure Engineer (Database Development) at Companies House, you will support, maintain, and develop the organisation's current and future data services. Working primarily with Oracle and PL/SQL technologies, you will contribute to the delivery of both public-facing and internal services, while knowledge of PostgreSQL would be advantageous. You will be involved in database development, administration, and support across development, testing, and end-to-end environments.

The role offers the opportunity to play a key part in the ongoing transformation of Companies House services. Working within the Database Development team, you will develop and maintain data components, bulk data products, and Oracle PL/SQL packages that underpin customer-facing systems, including the Companies House Service (CHS). You will also support live production databases by investigating customer queries, producing data extracts and statistics, and creating data-fix scripts to implement bulk database updates.

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Companies House offers a flexible and welcoming culture that promotes a healthy work life balance as well as a proactive approach to wellbeing that allows us to be our best at work. We recognise that people are the key to our success so offer a fantastic benefits package including flexible working with no core hours, 30 days annual leave, 8 bank holidays and 1 privilege day as well as enrolment into the Civil Service Pension scheme with a contribution rate averaging 28%.

Find out more about what a great place Companies House is to work

lease note:

• Companies House cannot offer Visa sponsorship to candidates through this campaign.
• Security Clearance is an essential requirement for this campaign. You'll need to have been in the UK for at least 3 out of the last 5 years to be eligible to apply for SC.
• The team for this role is based in our Cardiff office, and a hybrid employment contract will be provided as the standard offering. You could also be aligned to our Edinburgh office if this is closer to you. However, remote contracts may be considered as an exception whereby commuting to one of these office locations is not reasonably practicable.

Job description

As a Senior Infrastructure Engineer (Database Development) you will:

• Use PL/SQL, database administration, and data development expertise to support and enhance the data platforms that underpin Companies House services.
• Collaborate with analysts, customers, developers, and support teams to deliver high-quality data solutions.
• Work in an Agile environment across multiple projects to support and improve core business systems.
• Install, configure, and maintain solutions in line with technical standards and Change Management processes.
• Develop and maintain automated deployment and release pipelines using Concourse CI/CD to support the reliable delivery of database and infrastructure changes.
• Investigate, diagnose, and resolve incidents within agreed service targets.
• Perform root cause analysis and implementing corrective actions to improve service reliability.
• Support the migration of on-premises services to public cloud platforms and contributing to the wider technology transformation programme.
• Promote Infrastructure as Code, automation, and DevOps best practices to improve operational efficiency and system resilience.

This role combines database development, database administration, CI/CD automation, operational support, and cloud transformation work, providing opportunities to influence the evolution of critical public services.

We are looking for an experienced Senior Infrastructure Engineer, who meets the technical specifications outlined here: Infrastructure engineer - Government Digital and Data Profession Capability Framework

You can read more about a career in Digital and Data within the Civil Service in the Government Digital and Data Candidate Information Pack.

About the team:

The Database Development team is part of the Infrastructure Engineering profession and plays a key role in delivering the data platforms and services that support Companies House's critical systems.

The team develops and maintains Oracle databases, PL/SQL solutions, data integrations, and bulk data products that underpin both internal services and customer-facing systems, including the Companies House Service (CHS). Working in Agile teams, you'll collaborate with engineers, analysts, architects, and service specialists to deliver secure, reliable, and scalable solutions.

As part of our digital transformation programme, the team is modernising legacy platforms and increasing automation through CI/CD pipelines, providing opportunities to work with modern engineering practices while supporting business-critical national services.

We foster a collaborative and supportive culture that encourages knowledge sharing, continuous learning, and innovation. You'll have the opportunity to influence technical decisions, develop your skills, and contribute to services used by millions of people across the UK.

Person specification

We’re looking for the following skills:

• Has proven experience working within a multidisciplinary technical team, delivering database and infrastructure solutions in complex enterprise environments.
• Significant commercial experience developing Oracle database solutions using PL/SQL, including stored procedures, packages, functions, triggers, performance optimisation, and data modelling.
• Can troubleshoot and resolve complex database, application, and infrastructure issues, using a structured and analytical approach to problem solving.
• Has experience working effectively in distributed teams, utilising collaboration tools and technical documentation to diagnose and resolve issues remotely.
• Understands CI/CD principles and has experience developing and maintaining automated deployment pipelines using tools such as Concourse.
• Has experience supporting production services, including incident management, root cause analysis, problem management, and service improvement activities.
• Can communicate complex technical concepts clearly to both technical and non-technical stakeholders.
• Demonstrates a proactive approach to automation, continuous improvement, and adoption of DevOps and Infrastructure as Code practices.
• Experience administering Oracle databases (19c), including backup and recovery, performance monitoring, security management, and troubleshooting.
• Experience working with version control systems such as Git and supporting CI/CD pipelines using Concourse or similar tooling.
• Experience supporting and maintaining business-critical production systems within a structured IT service environment.
• Experience working within Agile delivery teams using Scrum methodologies and contributing throughout the software development lifecycle.
• Knowledge of cloud platforms (AWS) and migration activities, particularly the transition of on-premises services to public cloud environments.
• Experience writing and optimising SQL queries, data extracts, r