At a Glance
- Tasks: Support and develop data services using Oracle and PL/SQL technologies.
- Company: Join Companies House, a leader in digital transformation.
- Benefits: 30 days leave, Civil Service Pension, flexible working, and family leave.
- Other info: Enjoy a dynamic work environment with a focus on equality and inclusion.
- Why this job: Play a key role in transforming public services with impactful data solutions.
- Qualifications: Experience in database development and administration, knowledge of PostgreSQL is a plus.
The predicted salary is between 54000 - 66000 £ per year.
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.
Why join us? Here’s what you’ll enjoy:
- 30 days annual leave + 8 bank holidays + 1 privilege day
- Civil Service Pension with an average 28% employer contribution (worth £12,025 for this role!)
- Equality, diversity & inclusion at the heart of everything we do
- Flexible and mobile working for a great work-life balance
- Seasonal flu jabs
- Generous family leave – maternity, paternity, adoption & shared parental
- Cycle to Work scheme
If you have any questions about the role or process, please reach out to gcoleman@companieshouse.gov.uk.
This role closes on Monday 7th September 2026 at 23.55pm.
Please 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.
A hybrid employment contract will be provided as the standard offering. However, remote contracts may be considered as an exception whereby commuting to our Cardiff or Edinburgh office location is not reasonably practicable.
Senior Infrastructure Engineer (Database Development) in Cardiff employer: Companies House
At Companies House, we pride ourselves on being an excellent employer that values innovation and collaboration. Our flexible/hybrid work culture promotes a healthy work-life balance while providing ample opportunities for professional growth and development within the tech sector. Join us in a dynamic environment where your contributions directly impact public services and where you can thrive alongside a supportive team dedicated to excellence.
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We think this is how you could land Senior Infrastructure Engineer (Database Development) in Cardiff
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We think you need these skills to ace Senior Infrastructure Engineer (Database Development) in Cardiff
Some tips for your application 🫡
Show off your coding skills:When applying for a software engineering role, it's super important to showcase your coding skills. Make sure your CV includes your tech stack, any relevant programming languages you’re comfortable with, and examples of projects you've worked on. If you have a GitHub profile, link it up! We love to see code in action.
Tailor your portfolio:For a full-time role, we’d expect to see some solid examples of your work in your portfolio. Make sure to include at least two or three projects that highlight your problem-solving skills and your ability to work with different technologies. Focus on the projects that are most relevant to the position at Companies House.
Craft a killer cover letter:Your cover letter is your chance to stand out—make it personal! Explain why you want to work at Companies House and how your skills align with the role. Show us your passion for software development. We dig enthusiastic candidates who understand the value of collaboration and continuous learning!
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How to prepare for a job interview at Companies House
✨Brush Up on Your Coding Skills
For a full-time software engineering role, it's crucial that we stay sharp with our coding abilities. Expect technical questions that might involve solving problems on the spot or discussing algorithms. Practise on platforms like LeetCode or HackerRank to get comfortable with the types of questions that often come up.
✨Know Your Tools and Frameworks
Make sure we’re well-acquainted with the tools and technologies listed in the job description. Familiarise ourselves with any specific frameworks or programming languages mentioned. If Companies House uses React or Node.js, for instance, be ready to discuss how we’ve used them in previous projects or coursework.
✨Showcase Your Projects
Bring along a portfolio that highlights our best work. This could be code samples, GitHub repositories, or any side projects we’ve built. Make sure we can talk through our thought process for each project, especially the challenges we faced and how we solved them—this shows our problem-solving skills in action.
✨Prepare for Behavioural Questions
While technical skills are key, full-time positions also require cultural fit. Be ready to discuss our previous experiences and how we handle teamwork, conflict, and deadlines. Brush up on the STAR method—Situation, Task, Action, Result—to clearly articulate our past experiences when discussing how we've contributed to a team.