At a Glance
- Tasks: Lead technical delivery and solve complex challenges in secure infrastructure.
- Company: Join a dynamic tech company focused on high-impact projects.
- Benefits: Enjoy flexible working, private healthcare, and performance bonuses.
- Other info: Opportunities for career development and exposure to diverse technologies.
- Why this job: Make a real impact while working on meaningful, complex projects.
- Qualifications: Strong experience in enterprise systems and infrastructure support required.
The predicted salary is between 60000 - 80000 £ per year.
Join a business delivering critical, high-impact projects where secure and resilient infrastructure is essential. This Principal Systems Administrator role sits at the heart of enterprise technology, leading technical delivery, solving complex challenges, and helping shape future systems strategy.
Role Overview:
- Location: Hybrid working with UK travel as required
- Package: Competitive salary + performance bonus + private healthcare + flexible benefits
- Industry: Technology / Defence / Secure Infrastructure
What You’ll Be Doing:
- Providing technical leadership across core infrastructure environments and supporting wider engineering teams with expert guidance
- Designing, implementing and maintaining enterprise systems to ensure reliability, security and performance
- Diagnosing and resolving complex infrastructure, deployment and application issues across business-critical environments
- Leading systems administration activity across technical projects and programmes
- Supporting the delivery of a 24/7 operational service, including participation in an on-call rota and occasional out-of-hours change activity
- Working closely with third-party vendors to manage upgrades, support requests and technical escalations
- Contributing to service planning and helping shape technical standards, principles and best practice
- Ensuring processes align with recognised governance and security standards, including ISO frameworks
Main Skills Needed:
- Strong experience across enterprise systems administration and infrastructure support
- Hands-on expertise with virtualisation technologies, particularly VMware environments
- Experience with storage platforms, cloud services and Microsoft technologies including Windows Server, Exchange and Microsoft 365
- Knowledge of Citrix environments and secure remote access technologies
- Understanding of SQL Server administration and database fundamentals
- Experience working with Linux environments, automation tools and identity/access technologies
- Strong networking fundamentals including DNS, DHCP, TCP/IP and wider connectivity concepts
- Familiarity with IT service and delivery frameworks such as ITIL, Agile or Scrum
- Ability to work within highly secure environments and support business-critical systems
What’s in It for You:
- Flexible hybrid working options designed around work-life balance
- Optional compressed hours with every other Friday off
- Private healthcare and performance-related bonuses
- Career development opportunities with access to ongoing learning and progression
- The chance to work on meaningful, technically complex projects in a highly secure environment
- Exposure to a broad range of technologies with opportunities to influence infrastructure direction
Security Clearance: Due to the nature of the work, applicants must be sole UK nationals and eligible to obtain and maintain UK Government SC clearance.
Call to Action: Curious? Apply now — or grab five minutes with us to hear more. We are an equal opportunity employer and value diversity at our company. We do not discriminate on the basis of race, religion, colour, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status.
Principal Systems Administrator employer: Addition+
Join a forward-thinking technology and defence company that prioritises secure infrastructure and offers a dynamic work culture. With flexible hybrid working options, competitive benefits including private healthcare, and a strong focus on employee development, this role provides the opportunity to lead impactful projects while enjoying a healthy work-life balance. You'll be part of a diverse team that values innovation and collaboration, making it an excellent place for those seeking meaningful and rewarding employment.
StudySmarter Expert Advice🤫
We think this is how you could land Principal Systems Administrator
✨Tip Number 1
Network like a pro! Reach out to your connections in the tech and defence sectors. Attend industry events or webinars, and don’t be shy about asking for introductions. We all know that sometimes it’s not just what you know, but who you know!
✨Tip Number 2
Prepare for those tricky technical interviews! Brush up on your knowledge of enterprise systems, virtualisation technologies, and cloud services. We recommend doing mock interviews with friends or using online platforms to get comfortable with the questions you might face.
✨Tip Number 3
Showcase your problem-solving skills! During interviews, share specific examples of how you've tackled complex infrastructure issues in the past. We love hearing about real-life scenarios where you’ve made a difference, so make sure to have those stories ready!
✨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, we’re always looking for passionate individuals who want to make an impact in secure infrastructure. So, what are you waiting for?
We think you need these skills to ace Principal Systems Administrator
Some tips for your application 🫡
Tailor Your CV:Make sure your CV reflects the skills and experiences that match the Principal Systems Administrator role. Highlight your hands-on expertise with virtualisation technologies and any experience with cloud services or Microsoft technologies.
Craft a Compelling Cover Letter:Use your cover letter to tell us why you're the perfect fit for this role. Share specific examples of how you've solved complex infrastructure challenges and contributed to technical delivery in previous positions.
Showcase Your Technical Leadership:In your application, emphasise your experience in leading systems administration activities and supporting engineering teams. We want to see how you've shaped technical standards and best practices in your past roles.
Apply Through Our Website:We encourage you to apply directly through our website for the best chance of getting noticed. It’s the easiest way for us to keep track of your application and ensure it reaches the right people!
How to prepare for a job interview at Addition+
✨Know Your Tech Inside Out
Make sure you brush up on your technical knowledge, especially around enterprise systems administration and the specific technologies mentioned in the job description. Be ready to discuss your hands-on experience with VMware, Microsoft technologies, and any relevant cloud services.
✨Showcase Problem-Solving Skills
Prepare to share examples of how you've diagnosed and resolved complex infrastructure issues in the past. Think of specific challenges you've faced and how you approached them, as this will demonstrate your ability to lead technical delivery effectively.
✨Understand the Company’s Needs
Research the company’s projects and their focus on secure infrastructure. Tailor your responses to show how your skills align with their mission and how you can contribute to their high-impact projects.
✨Be Ready for Scenario Questions
Expect scenario-based questions that assess your ability to work within highly secure environments. Practice articulating your thought process and decision-making when it comes to maintaining security standards and governance.
