Senior Infrastructure And Directory Services Engineer in Cardiff
Senior Infrastructure And Directory Services Engineer

Senior Infrastructure And Directory Services Engineer in Cardiff

Cardiff Full-Time 52000 - 78000 £ / year (est.) No home office possible
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At a Glance

  • Tasks: Design and support secure, multi-domain infrastructure for mission-critical operations.
  • Company: Leading Defence organisation with a focus on innovation and security.
  • Benefits: Competitive salary, bonus, hybrid working, and comprehensive benefits package.
  • Other info: Opportunity for career growth in a dynamic and collaborative environment.
  • Why this job: Join a vital programme that shapes national security and enhances your tech skills.
  • Qualifications: Experience in Active Directory, Windows Server, and strong PowerShell scripting.

The predicted salary is between 52000 - 78000 £ per year.

A major Defence customer is undertaking an extensive programme to build a secure, on‑premise, multi‑domain virtualised infrastructure that underpins mission‑critical and operational capabilities. As a Senior Infrastructure & Directory Services Engineer, you will design, implement, and support enterprise services across several secure domains – including Active Directory, identity services, Windows Server, DNS/DHCP, PKI, authentication platforms, and related Microsoft ecosystem components.

Key Responsibilities

  • Architect, manage, and maintain multi‑site Active Directory environments
  • Administer DNS, DHCP, and PKI in secure operational environments
  • Design and enforce Group Policy Objects (GPOs)
  • Manage Web Application Proxy (WAP), RDS, and federation services
  • Ensure alignment with MOD security standards
  • Participate in design reviews and Change Advisory Boards (CAB)
  • Work closely with security, cloud, networking, Linux, and virtualisation teams
  • Monitor performance using Splunk, event logging, and PowerShell automation
  • Automate tasks using PowerShell (essential) or Ansible (desirable)

Essential Skills & Experience

  • Multi‑site Active Directory support
  • Windows Server, DNS, DHCP
  • GPO design and troubleshooting
  • PKI and certificate services
  • Web Application Proxy & RDS
  • Strong PowerShell scripting
  • Working in a Defence or Government environment

Desirable Skills

  • Defence sector experience
  • VMware vSphere, vCenter, ESXi; awareness of NSX‑T
  • SIEM/monitoring experience
  • Ansible or other automation tools
  • Linux/Unix integration with AD
  • Secure WAN technologies (BGP/MPLS/VPN)
  • Existing SC/DV clearance

Qualifications

  • Microsoft Identity & Access Administrator (or equivalent)
  • ITIL v4 Foundation or higher
  • Degree in Computer Science or equivalent experience

Personal Attributes

  • Customer‑focused and committed to service excellence
  • Strong ownership and reliability
  • Willingness to challenge established practices
  • Driven, proactive, and collaborative

If you are a Senior Infrastructure and Director Services Engineer or similar, with a background in Defence, then please send your CV to me today as this will go quickly.

Senior Infrastructure And Directory Services Engineer in Cardiff employer: 100% IT Recruitment

As a leading employer in the Defence sector, we offer a dynamic work environment in Caerphilly that fosters innovation and collaboration. Our hybrid working model provides flexibility, while our commitment to employee development ensures you have ample opportunities for growth and advancement. With a comprehensive benefits package and a focus on mission-critical projects, joining our team means contributing to vital national security initiatives in a supportive and engaging culture.
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Contact Detail:

100% IT Recruitment Recruiting Team

StudySmarter Expert Advice 🤫

We think this is how you could land Senior Infrastructure And Directory Services Engineer in Cardiff

✨Network Like a Pro

Get out there and connect with people in the industry! Attend events, join online forums, or even reach out on LinkedIn. We all know that sometimes it’s not just what you know, but who you know that can land you that dream job.

✨Show Off Your Skills

When you get the chance to chat with potential employers, don’t hold back! Share your experiences with Active Directory, PowerShell scripting, and any cool projects you've worked on. We want to see your passion and expertise shine through!

✨Prepare for the Interview

Do your homework before the interview! Research the company, understand their mission, and be ready to discuss how your skills align with their needs. We recommend practising common interview questions related to infrastructure and security to boost your confidence.

✨Apply Through Our Website

Don’t forget to apply through our website! It’s the best way to ensure your application gets noticed. Plus, we’re always on the lookout for talented individuals like you to join our team in making a difference in the Defence sector.

We think you need these skills to ace Senior Infrastructure And Directory Services Engineer in Cardiff

Active Directory
Windows Server
DNS
DHCP
PKI
Group Policy Objects (GPO) design
PowerShell scripting
Web Application Proxy
Remote Desktop Services (RDS)
Multi-site support
Security compliance
Automation tools (Ansible)
Linux/Unix integration
Defence sector experience
Customer-focused

Some tips for your application 🫡

Tailor Your CV: Make sure your CV highlights your experience with Active Directory, Windows Server, and PowerShell. We want to see how your skills align with the key responsibilities listed in the job description.

Showcase Relevant Experience: If you've worked in a Defence or Government environment before, shout about it! We love candidates who understand the unique challenges of this sector, so make that experience front and centre.

Be Clear and Concise: When writing your application, keep it straightforward. We appreciate clarity, so avoid jargon and get straight to the point about your qualifications and why you’re a great fit for the role.

Apply Through Our Website: Don’t forget to submit your application through our website! It’s the best way for us to receive your details and ensures you’re considered for the role. We can’t wait to hear from you!

How to prepare for a job interview at 100% IT Recruitment

✨Know Your Tech Inside Out

Make sure you brush up on your knowledge of Active Directory, DNS, DHCP, and PKI. Be ready to discuss how you've managed multi-site environments and any challenges you've faced. This role is all about technical expertise, so show them you know your stuff!

✨Showcase Your Automation Skills

Since PowerShell scripting is essential for this position, prepare to talk about specific scripts you've written or tasks you've automated. If you have experience with Ansible, mention that too! Demonstrating your ability to streamline processes will impress the interviewers.

✨Understand Defence Standards

Familiarise yourself with MOD security standards and how they apply to infrastructure services. Being able to discuss how you ensure compliance in your previous roles will show that you're not just technically savvy but also aware of the regulatory landscape.

✨Be Ready for Scenario Questions

Expect scenario-based questions where you'll need to demonstrate your problem-solving skills. Think about past experiences where you had to troubleshoot issues or implement changes in a secure environment. Use the STAR method (Situation, Task, Action, Result) to structure your answers effectively.

Senior Infrastructure And Directory Services Engineer in Cardiff
100% IT Recruitment
Location: Cardiff
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