Senior Infrastructure Engineer

Join a brand-new team shaping the future of Defence and Space.

We are building  a new team of Senior Infrastructure Engineers –including  IAM/IDAM Engineers and Network Engineers, to deliver a transformative integration project that will reshape infrastructure across our Aerospace, Defence & Security sector. 

We're looking for experienced Infrastructure Engineers with strong expertise in IAM/IDAM to help implement a secure, fully functional on-premises domain for a leading Defence and Space client. You'll be building a brand-new domain from the ground up, delivering robust, scalable, and compliant Identity and Access Management solutions. 

You will be office-based at one of our
sites in Stevenage, Portsmouth, or Newport, with some flexibility to work from
home.

We can offer great career progression
opportunities, ability to be based anywhere across the UK, benefits which you
can flex to meet your needs and training and development opportunities.

What you'll be doing:

• Implement
  IAM Design-
  Deliver a pre-approved IAM architecture that meets security,
  scalability, and compliance standards.
• Build and Configure Domains-
  Create a new domain from scratch, including directory
  services, trust relationships, group policies, and secure authentication.
•  Integrate
  Systems-
  Ensure IAM components work seamlessly with existing
  infrastructure and third-party systems.
•  Apply
  Security & Compliance-
  Enforce Defence-grade security controls aligned with
  regulatory frameworks.
• Automate
  & Harden Infrastructure-
  Develop scripts and workflows for provisioning and
  monitoring IAM services; strengthen systems against vulnerabilities
• Collaborate
  with Stakeholder-
  Work with internal teams, vendors, and client stakeholders
  to ensure smooth delivery and clear communication.
• Troubleshoot
  & Optimise-
  Resolve infrastructure issues, improve performance, and
  monitor IAM services for resilience before launch.

What you'll bring:

• Proven
  experience as an IAM/IDAM Engineer
• Strong
  knowledge of Microsoft Active Directory (Enterprise/Multi-Forest), Group
  Policy (GPO), and DNS
• Expertise
  with Microsoft Exchange (2010/2016), including Exchange CUs and
  monitoring
• Understanding
  of FIM/MIM and Single Sign-On/PKI
• Experience
  with Mail AV/SPAM solutions (e.g., Trend IMSVA)
• Proficiency
  in PowerShell scripting and reporting
• Hands-on
  experience with Windows Server OS (2012–2025) and VMware/virtualised
  environments
• Knowledge
  of Enterprise Vault and Domain Controller
  installations/migrations
  
  

It would be great if you had:

• MECM
  (SCCM) and related configuration tools
• Email
  security and routing (Postfix/Sendmail, Cisco IronPorts)
• Microsoft
  Certifications (MCP, MCITP, MCSE, MCSA, MCTS)
• Federation
  technologies (PingFederate)
• ITIL
  qualification

Employment Type: Full-time, Permanent
Location: Stevenage, Portsmouth & Newport
Security Clearance Level: Must be
eligible for SC
Internal Recruiter: Carolyne
Salary: £60K
Benefits: 25
days annual leave with the choice to buy additional days, health cash plan,
life assurance, pension, and generous flexible benefits fund

Although this role is advertised as full-time, we believe that
flexibility at work can promote work/life balance, increase your motivation,
reduce stress and improves performance and productivity. We support different
ways of working and can offer a range of flexible working arrangements. So, if
you're interested and need to work flexibly, we encourage you to apply and talk
to us about what might be possible.

Loved reading about this job and want to
know more about us?
Sopra Steria's Aerospace, Defence and
Security business designs, develops and deploys digital solutions to Central
Government clients. The work we do makes a real difference to the client's goal
of National Security, and we operate in a unique and privileged environment. We
are given time for professional development activities, and we coach and mentor
our colleagues, sharing knowledge and learning from each other. We foster a
culture in which employees feel valued and supported and have pride in their work
for the customer, delivering outstanding rates of customer satisfaction in the
UK's most complex safety- and security-critical markets.