Infrastructure Engineer - Systems Administrator in Portsmouth
Infrastructure Engineer - Systems Administrator

Infrastructure Engineer - Systems Administrator in Portsmouth

Portsmouth Full-Time 45000 - 50000 £ / year (est.) No home office possible
Mexa Solutions LTD

At a Glance

  • Tasks: Support and improve infrastructure while delivering impactful security-focused projects.
  • Company: Dynamic organisation prioritising IT, security, and resilience.
  • Benefits: Competitive salary, hands-on role, and opportunities for professional growth.
  • Other info: Collaborative culture with a focus on technical excellence and career development.
  • Why this job: Make a real difference in complex environments and enhance security measures.
  • Qualifications: Experience in 3rd line support and strong knowledge of Windows Server and Microsoft 365.

The predicted salary is between 45000 - 50000 £ per year.

You're the person people turn to when the issue isn't straightforward. The one who understands how the environment fits together. The one who doesn't just fix the problem but thinks about why it happened and how to stop it from happening again.

This role is for an Infrastructure Engineer who enjoys a mix of 3rd line BAU support and meaningful project delivery across the systems/infrastructure engineering environment, within an organisation that takes IT, security, and resilience seriously. It's a hands-on, trusted role where your technical judgement matters.

What's in it for you?

  • Salary: £45,000 – £50,000+
  • Location: Portsmouth (full-time onsite)
  • Role type: Infrastructure / systems engineering
  • Balance: BAU ownership alongside structured project work
  • Exposure: Infrastructure, Microsoft cloud, endpoint management and cyber security
  • Influence: Real input into standards, tooling, and how things are done

What you'll be doing

  • Acting as a senior technical escalation point across the infrastructure estate
  • Supporting and improving on-prem systems including servers, storage, and core services
  • Delivering infrastructure and security-focused projects from design through to implementation
  • Working across the Microsoft stack, including:
  • Microsoft 365
  • Intune and device management
  • Entra ID / identity and access
  • SCCM
  • Playing an active role in cyber security initiatives, including endpoint protection, vulnerability management, and responding to security findings
  • Supporting penetration testing activity and helping implement recommendations
  • Contributing to change control, documentation, and technical standards
  • Working closely with senior stakeholders to explain risks, options, and decisions in plain English
  • Helping improve resilience, security posture, and long-term infrastructure planning
  • What you'll bring

    • Strong experience in a 3rd line / infrastructure engineering role
    • Solid knowledge of Windows Server environments, on-prem infrastructure, and core networking concepts
    • Good hands-on exposure to Microsoft 365, Intune, Entra ID, and endpoint management
    • Awareness of cyber security principles, vulnerability management, and modern endpoint protection
    • Confidence delivering technical projects, not just supporting them
    • A methodical approach to change, documentation, and risk
    • Clear communication skills and the confidence to challenge when needed

    This role suits someone who enjoys being trusted with complex environments, likes getting stuck into both technical problems and projects, and wants to work somewhere that values doing things properly.

    Interested? Send your CV to bob.bath@mexasolutions.com and let's have a confidential chat.

    Infrastructure Engineer - Systems Administrator in Portsmouth employer: Mexa Solutions LTD

    At our Portsmouth-based company, we pride ourselves on being an excellent employer that values technical expertise and fosters a collaborative work culture. With a competitive salary range of £45,000 – £50,000+, we offer meaningful project delivery opportunities alongside 3rd line support, ensuring that your contributions directly impact our IT resilience and security initiatives. Our commitment to employee growth is evident through exposure to cutting-edge technologies and the chance to influence standards and practices within a supportive environment.
    Mexa Solutions LTD

    Contact Detail:

    Mexa Solutions LTD Recruiting Team

    StudySmarter Expert Advice 🤫

    We think this is how you could land Infrastructure Engineer - Systems Administrator in Portsmouth

    ✨Tip Number 1

    Network like a pro! Reach out to people in the industry, attend meetups, and connect on LinkedIn. You never know who might have the inside scoop on job openings or can refer you directly.

    ✨Tip Number 2

    Show off your skills! Create a portfolio or GitHub repository showcasing your projects and technical expertise. This gives potential employers a taste of what you can do beyond just a CV.

    ✨Tip Number 3

    Prepare for interviews by practising common technical questions and scenarios related to infrastructure engineering. We recommend doing mock interviews with friends or using online platforms to boost your confidence.

    ✨Tip Number 4

    Apply through our website! It’s the best way to ensure your application gets seen. Plus, we love seeing candidates who take the initiative to engage directly with us.

    We think you need these skills to ace Infrastructure Engineer - Systems Administrator in Portsmouth

    3rd Line Support
    Infrastructure Engineering
    Windows Server
    Microsoft 365
    Intune
    Entra ID
    SCCM
    Cyber Security Principles
    Vulnerability Management
    Endpoint Protection
    Technical Project Delivery
    Change Control
    Documentation
    Risk Management
    Clear Communication

    Some tips for your application 🫡

    Tailor Your CV: Make sure your CV speaks directly to the role of Infrastructure Engineer. Highlight your experience with 3rd line support, Microsoft technologies, and any relevant projects you've delivered. We want to see how you fit into our world!

    Showcase Your Problem-Solving Skills: In your application, don’t just list your skills; tell us about a time you tackled a tricky issue. We love candidates who can think critically and not just fix problems but also prevent them from happening again.

    Keep It Clear and Concise: When writing your application, clarity is key! Use straightforward language and avoid jargon where possible. We appreciate candidates who can communicate complex ideas in plain English, especially when it comes to technical topics.

    Apply Through Our Website: We encourage you to apply through our website for a smoother process. It helps us keep track of applications and ensures you don’t miss out on any important updates. Plus, it’s super easy!

    How to prepare for a job interview at Mexa Solutions LTD

    ✨Know Your Stuff

    Make sure you brush up on your technical knowledge, especially around Windows Server environments and Microsoft 365. Be ready to discuss your hands-on experience with these technologies and how you've tackled complex issues in the past.

    ✨Showcase Problem-Solving Skills

    Prepare examples of how you've not only fixed problems but also identified their root causes. This role values a proactive approach, so think about times when you've implemented solutions to prevent future issues.

    ✨Communicate Clearly

    Practice explaining technical concepts in simple terms. You'll need to communicate effectively with senior stakeholders, so being able to break down complex ideas will show that you can bridge the gap between tech and business.

    ✨Be Ready for Cyber Security Discussions

    Since this role involves cyber security initiatives, be prepared to discuss your awareness of security principles and any relevant experiences. Think about how you've contributed to vulnerability management or endpoint protection in previous roles.

    Infrastructure Engineer - Systems Administrator in Portsmouth
    Mexa Solutions LTD
    Location: Portsmouth

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