Active Directory Specialist (on-site Aldermaston) (Open)
Active Directory Specialist (on-site Aldermaston) (Open)

Active Directory Specialist (on-site Aldermaston) (Open)

Full-Time 55000 - 65000 £ / year (est.) Home office (partial)
DXC

At a Glance

  • Tasks: Support and enhance hybrid identity services in a high-security environment.
  • Company: Join a leading tech firm focused on innovative identity solutions.
  • Benefits: Competitive salary, potential for remote work, and professional growth opportunities.
  • Other info: Dynamic role with excellent career advancement and continuous learning culture.
  • Why this job: Make a real impact in a fast-paced, collaborative setting while working with cutting-edge technology.
  • Qualifications: 5+ years in hybrid AD support and strong troubleshooting skills required.

The predicted salary is between 55000 - 65000 £ per year.

LOCATION: Client Site Aldermaston Onsite 5 days per week (occasional WFH possible)

SECURITY CLEARANCE: DV or willing to undergo DV vetting

ROLE OVERVIEW: The Active Directory Specialist plays a pivotal role in supporting, maintaining, and enhancing a complex hybrid identity services environment that spans both On-Prem Active Directory and Entra (Azure Active Directory). Operating within a high-security, fast-paced public-sector setting, the role requires delivering expert 2nd/3rd line technical support while also contributing to long-term service transformation, infrastructure modernisation, and operational automation initiatives. You will work at the centre of enterprise identity and access management, ensuring stability, security, and performance across critical directory services including AD DS, Group Policy, ADFS, AD Connect, PKI, and a broad range of supporting technologies.

KEY RESPONSIBILITIES:

  • Administer and maintain hybrid identity infrastructures across on-prem Active Directory and Azure Active Directory (Entra ID), ensuring secure, reliable authentication and directory services.
  • Troubleshoot and optimise identity platforms including AD, ADFS, Azure AD Connect/Sync, Entra ID, and LDAP, resolving complex federation, synchronisation, and authentication issues.
  • Lead Group Policy lifecycle management, including design, implementation, and controlled deployment using AGPM to ensure consistent and secure configuration baselines.
  • Manage core AD infrastructure components such as Domain Controllers, FSMO roles, DNS, DHCP, Sites & Services, ensuring resilience, correct topology, and high availability.
  • Implement and enforce Azure AD security controls, including RBAC, Conditional Access, MFA, Identity Protection, PIM, and other Zero Trust aligned safeguards.
  • Support Azure-based platforms including Azure Virtual Desktop, Azure Storage, and policy-driven automation using PowerShell to streamline operational tasks.
  • Administer and support Windows Server environments (2016 through 2025), ensuring proper patching, performance, and service reliability.
  • Manage Public Key Infrastructure (PKI) and certificate-based authentication, including lifecycle operations, template management, and secure issuance practices.
  • Support and maintain Virtualisation Platforms in conjunction with Active Directory and domain architecture best practices.
  • Contribute to the design and delivery of identity and infrastructure solutions, including installation, configuration, optimisation, and continuous service improvement initiatives.
  • Produce comprehensive technical documentation, including HLDs, LLDs, operational guides, runbooks, and service model documentation for internal and customer use.
  • Work within Agile and ITIL-aligned processes to drive continuous improvement, operational consistency, and service excellence.
  • Deliver clear communication and exceptional customer service, supporting both technical and non-technical stakeholders in resolving identity and access-related issues.
  • Configure and support enterprise integrations, including Azure Enterprise Applications, ADFS-integrated services, Single Sign-On (SSO), and user/application provisioning for SaaS and PaaS platforms.

ESSENTIAL SKILLS & EXPERIENCE:

  • 5+ years supporting hybrid AD (On Prem & Azure AD) in enterprise environments.
  • Deep knowledge of Group Policy (inc. AGPM), ADFS, AD Connect, and LDAP.
  • Strong grasp of Azure AD security (RBAC, Conditional Access, MFA, PIM).
  • Proficiency across Windows Server 2016/2019/2022 (benefit: legacy familiarity from 2003+), DNS/DHCP, DFS, clustering, and Windows PKI.
  • Operational excellence with Domain Controllers and FSMO role management.
  • Azure PowerShell scripting for automation and support.
  • Experience with O365/Exchange Online and Endpoint Management in identity related contexts.
  • Strong documentation and communication skills; confident working directly with senior customer stakeholders.
  • Familiarity with ServiceNow (Incidents, Requests, Change, Reporting).

DESIRABLE SKILLS:

  • Azure DevOps, IaC (ARM/Bicep), CI/CD pipelines; exposure to containers/Kubernetes.
  • Azure Virtual Desktop (WVD/AVD) (Nerdio beneficial), Azure Monitoring and Log Analytics.
  • Broader systems knowledge: SCCM, WSUS, AGPM, Lumensions.
  • Understanding of the Microsoft Tiered Administration Model and enterprise segmentation.

Active Directory Specialist (on-site Aldermaston) (Open) employer: DXC

At our Aldermaston site, we pride ourselves on being an exceptional employer that fosters a collaborative and innovative work culture. As an Active Directory Specialist, you will benefit from a supportive environment that prioritises continuous learning and professional growth, alongside competitive remuneration and the opportunity to work on cutting-edge identity management projects in a high-security setting. Our commitment to employee well-being and development ensures that you will thrive both personally and professionally while contributing to meaningful public-sector initiatives.
DXC

Contact Detail:

DXC Recruiting Team

StudySmarter Expert Advice 🤫

We think this is how you could land Active Directory Specialist (on-site Aldermaston) (Open)

✨Tip Number 1

Network, network, network! Get out there and connect with people in the industry. Attend meetups, webinars, or even just chat with folks on LinkedIn. You never know who might have a lead on that Active Directory Specialist role you’re after!

✨Tip Number 2

Prepare for interviews like it’s game day! Research the company, understand their tech stack, and be ready to discuss how your skills align with their needs. Practise common interview questions and think of examples that showcase your experience with hybrid identity services.

✨Tip Number 3

Don’t underestimate the power of follow-ups! After an interview, drop a quick thank-you email to express your appreciation and reiterate your interest in the role. It keeps you fresh in their minds and shows you’re genuinely keen on the position.

✨Tip Number 4

Apply through our website! We’ve got loads of resources to help you ace your application and get noticed. Plus, it’s a great way to show you’re serious about joining our team and contributing to our mission in the identity management space.

We think you need these skills to ace Active Directory Specialist (on-site Aldermaston) (Open)

Active Directory
Azure Active Directory (Entra ID)
Group Policy Management
ADFS
AD Connect
LDAP
Public Key Infrastructure (PKI)
Windows Server 2016/2019/2022
DNS
DHCP
PowerShell Scripting
Identity and Access Management
Customer Service Skills
Technical Documentation
Agile Methodologies

Some tips for your application 🫡

Tailor Your CV: Make sure your CV is tailored to the Active Directory Specialist role. Highlight your experience with hybrid AD environments, Group Policy, and Azure AD security. We want to see how your skills match what we're looking for!

Show Off Your Troubleshooting Skills: In your application, don’t shy away from showcasing your troubleshooting prowess. Give examples of complex issues you've resolved in identity services. This will help us see your problem-solving abilities in action!

Communicate Clearly: Since this role involves working closely with customers and stakeholders, make sure your application reflects your communication skills. Use clear, concise language and demonstrate your ability to explain technical concepts simply.

Apply Through Our Website: We encourage you to apply through our website for a smoother process. It helps us keep track of your application and ensures you’re considered for the role. Plus, it’s super easy to do!

How to prepare for a job interview at DXC

✨Know Your Tech Inside Out

Make sure you brush up on your knowledge of Active Directory, Azure AD, and all the related technologies mentioned in the job description. Be ready to discuss your experience with Group Policy, ADFS, and troubleshooting complex issues. The more specific examples you can provide, the better!

✨Showcase Your Problem-Solving Skills

Prepare to demonstrate your troubleshooting abilities. Think of a few challenging scenarios you've faced in previous roles and how you resolved them. This will show that you can handle the high-pressure environment at the client site and contribute to operational excellence.

✨Communicate Clearly and Confidently

Since this role involves working closely with customer representatives and senior IT leadership, practice articulating technical concepts in a way that's easy to understand. Good communication skills are key, so be prepared to explain your thought process and solutions clearly.

✨Emphasise Your Customer-Focused Mindset

Highlight your experience in delivering exceptional customer service. Share examples of how you've built trust with stakeholders and resolved identity and access-related issues. This will show that you understand the importance of maintaining strong relationships in a collaborative environment.

Active Directory Specialist (on-site Aldermaston) (Open)
DXC

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