At a Glance
- Tasks: Lead the design and support of high-security Windows infrastructures for defence operations.
- Company: Join Leonardo, a global leader in Aerospace, Defence, and Security.
- Benefits: Enjoy flexible working, generous leave, and a comprehensive benefits package.
- Other info: Be part of an inclusive team driving innovation and technology.
- Why this job: Make a real impact in a critical role supporting national security.
- Qualifications: Expertise in Windows Server and high-security systems required.
The predicted salary is between 60000 - 80000 € per year.
Leonardo is looking for a 3rd Line Wintel Infrastructure Engineer to join our collaborative and skilled team supporting a critical MOD site. This is an exciting opportunity to serve as a Subject Matter Expert (SME) in Windows-based enterprise infrastructures. You'll play a central role in the design, deployment, and support of high-security systems that underpin key defence and aerospace operations.
Your Impact
- Take ownership of complex technical issues through to resolution, collaborating with users and other IT teams.
- Provide expert-level troubleshooting for incidents escalated from 1st and 2nd line support, ensuring consistent and minimal disruption to services.
- Deploy and integrate secure Windows Server environments (Active Directory, Group Policy, DNS, DHCP) using industry best practices.
- Implement and maintain infrastructure security measures such as patching, access controls, and hardening to align with compliance and internal governance.
- Use monitoring tools to proactively optimize system performance and ensure high availability.
- Create and maintain detailed technical documentation and contribute to internal knowledge sharing and mentoring.
- Participate in IT projects, ensuring infrastructure design meets both technical and business objectives.
- Collaborate closely with network, security, and application teams to deliver reliable, secure IT services.
What you’ll bring
- Proficiency in Ivanti Application & Device Control or similar lockdown tools.
- Experience working with high-security MOD systems and secure design principles.
- Familiarity with security and compliance documentation (e.g. RMADS, SyOPs, NIST frameworks).
Core Technologies
- Microsoft: Windows Server 2019/2022/2025, Active Directory, Group Policy, DNS, DHCP, Exchange Server 2019, SQL Server, SharePoint 2019
- VMware: VMware Cloud Foundation, vSphere, ESXi, NSXT, and vSAN
- Endpoint & Configuration: Windows 10 & 11, Microsoft Endpoint Configuration Manager (MECM)
- Monitoring & Observability: Microsoft System Centre Operations Manager (SCOM)
- PKI Technologies: Microsoft Certificate Services, Hardware Security Modules (HSMs), and lifecycle key management
Security Clearance
This role is subject to pre-employment screening in line with the UK Government’s Baseline Personnel Security Standard (BPSS). An additional range of Personnel Security Controls referred to as National Security Vetting (NSV) may apply, this could include meeting the eligibility requirements for The Security Check (SC) or Developed Vetting (DV).
Why join us
- At Leonardo, our people are at the heart of everything we do. We offer a comprehensive, company-funded benefits package that supports your wellbeing, career development, and work–life balance.
- Time to Recharge: Enjoy generous leave with the opportunity to accrue up to 12 additional flexi-days each year.
- Secure your Future: Benefit from our award-winning pension scheme with up to 15% employer contribution.
- Your Wellbeing Matters: Free access to mental health support, financial advice, and employee-led networks championing inclusion and diversity.
- Rewarding Performance: All employees at management level and below are eligible for our bonus scheme.
- Never Stop Learning: Free access to 4,000+ online courses via Coursera and LinkedIn Learning.
- Refer a friend: Receive a financial reward through our referral programme.
- Tailored Perks: Spend up to £500 annually on flexible benefits including private healthcare, dental, family cover, tech & lifestyle discounts, gym memberships and more.
- Flexible working: Flexible hours with hybrid working options.
For a full list of our company benefits please visit our website. Leonardo is a global leader in Aerospace, Defence, and Security. Headquartered in Italy, we employ over 53,000 people worldwide including 8,500 across 9 sites in the UK. Our employees are not just part of a team—they are key contributors to shaping innovation, advancing technology, and enhancing global safety.
At Leonardo we are committed to building an inclusive, accessible, and welcoming workplace. We believe that a diverse workforce sparks creativity, drives innovation, and leads to better outcomes for our people and our customers. If you have any accessibility requirements to support you during the recruitment process, just let us know.
Be part of something bigger - apply now!
Principal Platform Engineer employer: Leonardo UK Ltd
At Leonardo, we pride ourselves on being an exceptional employer, offering a supportive and inclusive work culture that prioritises employee wellbeing and professional growth. With a comprehensive benefits package, including generous leave, an award-winning pension scheme, and access to over 4,000 online courses, we empower our team members to thrive both personally and professionally. Located in the heart of London, our collaborative environment fosters innovation and creativity, making it an ideal place for those looking to make a meaningful impact in the defence and aerospace sectors.
StudySmarter Expert Advice🤫
We think this is how you could land Principal Platform Engineer
✨Tip Number 1
Network like a pro! Reach out to folks in the industry, attend meetups, and connect with people on LinkedIn. You never know who might have the inside scoop on job openings or can put in a good word for you.
✨Tip Number 2
Prepare for those interviews! Research the company, understand their values, and be ready to discuss how your skills align with their needs. Practise common interview questions and have your own questions ready to show your interest.
✨Tip Number 3
Showcase your expertise! Create a portfolio or a GitHub profile that highlights your projects and achievements. This is especially important for technical roles like a Principal Platform Engineer, where practical examples can set you apart.
✨Tip Number 4
Don’t forget to apply through our website! It’s the best way to ensure your application gets seen by the right people. Plus, it shows you’re genuinely interested in joining our team at Leonardo.
We think you need these skills to ace Principal Platform Engineer
Some tips for your application 🫡
Tailor Your CV:Make sure your CV reflects the skills and experiences that match the job description. Highlight your expertise in Windows-based enterprise infrastructures and any relevant security measures you've implemented.
Craft a Compelling Cover Letter:Use your cover letter to tell us why you're the perfect fit for the Principal Platform Engineer role. Share specific examples of your past work, especially around high-security systems and collaboration with IT teams.
Showcase Your Technical Skills:Don’t forget to list your proficiency in core technologies like Windows Server and VMware. Mention any experience with compliance documentation as it’s crucial for this role.
Apply Through Our Website:We encourage you to apply directly through our website. It’s the best way to ensure your application gets the attention it deserves and helps us keep track of all candidates efficiently.
How to prepare for a job interview at Leonardo UK Ltd
✨Know Your Tech Inside Out
Make sure you’re well-versed in the core technologies mentioned in the job description, like Windows Server and Active Directory. Brush up on your knowledge of Ivanti Application & Device Control and security compliance documentation, as these will likely come up during the interview.
✨Showcase Your Problem-Solving Skills
Prepare to discuss specific examples where you've taken ownership of complex technical issues. Think about times when you collaborated with other IT teams to resolve incidents or improve system performance, as this aligns perfectly with what they’re looking for.
✨Understand Security Measures
Since this role involves high-security systems, be ready to talk about infrastructure security measures you’ve implemented in the past. Familiarise yourself with patching, access controls, and hardening techniques, and be prepared to explain how you ensure compliance with internal governance.
✨Be Ready to Collaborate
Leonardo values teamwork, so think about how you can demonstrate your ability to work closely with network, security, and application teams. Prepare examples of successful collaborations that led to reliable and secure IT services, as this will show you’re a great fit for their culture.
