3rd Line IT Support Engineer
3rd Line IT Support Engineer

3rd Line IT Support Engineer

Full-Time 50000 - 65000 ÂŁ / year (est.) Home office (partial)
C4S Search Ltd

At a Glance

  • Tasks: Lead complex IT incidents and mentor junior engineers in a dynamic environment.
  • Company: Established IT services provider with a strong cloud-first strategy.
  • Benefits: Competitive salary, performance bonuses, private medical insurance, and 33 days annual leave.
  • Other info: Hybrid working model with excellent career progression opportunities.
  • Why this job: Step into a senior role with real influence and ownership over technical outcomes.
  • Qualifications: Experience in 3rd Line support and strong Microsoft stack expertise required.

The predicted salary is between 50000 - 65000 ÂŁ per year.

Location: London (Hybrid working)

Salary: Competitive basic salary + bonus

Way of Working: Permanent, Full‑Time Hybrid (mix of remote and office‑based working)

Benefits:

  • Performance‑related bonus
  • Sponsored training and development
  • Incentives for achieving Microsoft certifications
  • Company pension scheme
  • Private medical insurance
  • Income protection insurance
  • Employee Assistance Programme (wellbeing, physical & financial support)
  • 33 days annual leave (including bank holidays)
  • Additional day off for your birthday
  • Company sick pay

The Business: This organisation is a well-established IT services and managed services provider with over three decades of experience delivering secure, high‑quality technology solutions to professional and financial services clients. Operating at the top end of the market, they support highly regulated, demanding environments including legal, private equity and investment firms. The business is a long‑standing Microsoft partner with multiple advanced solution designations and operates a strong cloud‑first strategy, specialising in modern workplace, Microsoft 365 and Azure‑centric services. Continued growth across managed services has created an opportunity for a senior technical engineer to take ownership of complex escalations, proactive service delivery and technical leadership.

The 3rd Line Support Engineer Opportunity:

  • Act as the final escalation point for complex incidents, problems and major incidents across managed services
  • Lead root cause analysis, problem management and preventative remediation activities
  • Own and deliver proactive managed technical services including audits, health checks and assessments
  • Engage directly with customers as a trusted technical authority during high‑severity or complex issues
  • Mentor and develop 1st and 2nd Line engineers, raising overall technical maturity and service quality

Your Key Skills:

  • Proven experience as a Senior / 3rd Line Engineer within a Managed Services environment
  • Strong Microsoft stack expertise, including: Microsoft 365 (Exchange, Teams, SharePoint, Entra ID, Intune), Windows Server & Active Directory, Azure (core services, identity and networking fundamentals)
  • Solid understanding of endpoint management, networking (DNS, DHCP, TCP/IP, VPNs) and security best practice
  • Experience working with ITSM tools and ITIL‑aligned processes (e.g. ConnectWise Manage)
  • Comfortable leading major incidents, producing RCA documentation and owning complex issues end‑to‑end
  • Confident communicator with the ability to explain complex technical issues to non‑technical stakeholders
  • Strong documentation and reporting skills

About You:

  • Calm, professional and confident under pressure
  • A natural problem‑solver who thinks independently and proactively
  • Comfortable taking ownership and accountability for technical outcomes
  • Passionate about improving services, not just resolving tickets
  • Approachable mentor with a genuine interest in developing others

Apply Now: If you’re a senior engineer looking to step into a true technical authority role with influence, ownership and progression, apply now or contact C4S Search for a confidential discussion. C4S Search specialises in connecting high‑calibre technology professionals with leading organisations across infrastructure, cloud, security and managed services.

3rd Line IT Support Engineer employer: C4S Search Ltd

This organisation stands out as an exceptional employer, offering a dynamic hybrid working environment in London that fosters both professional growth and personal well-being. With a strong commitment to employee development through sponsored training and Microsoft certifications, alongside a comprehensive benefits package including private medical insurance and generous annual leave, employees are empowered to thrive in their roles while contributing to high-quality technology solutions for prestigious clients. The collaborative work culture encourages mentorship and technical leadership, making it an ideal place for ambitious IT professionals seeking meaningful and rewarding careers.
C4S Search Ltd

Contact Detail:

C4S Search Ltd Recruiting Team

StudySmarter Expert Advice 🤫

We think this is how you could land 3rd Line IT Support Engineer

✨Tip Number 1

Network like a pro! Reach out to your connections in the IT world, especially those who work in managed services. A friendly chat can lead to insider info about job openings or even a referral.

✨Tip Number 2

Show off your skills! Prepare a portfolio or a presentation that highlights your experience with Microsoft 365, Azure, and any major incidents you've handled. This will help you stand out during interviews.

✨Tip Number 3

Practice makes perfect! Conduct mock interviews with friends or use online platforms to refine your answers, especially for technical questions. The more comfortable you are, the better you'll perform.

✨Tip Number 4

Don’t forget to apply through our website! We’ve got some fantastic opportunities waiting for you, and applying directly can sometimes give you an edge over other candidates.

We think you need these skills to ace 3rd Line IT Support Engineer

3rd Line Support
Microsoft 365
Windows Server
Active Directory
Azure
Endpoint Management
Networking (DNS, DHCP, TCP/IP, VPNs)
Security Best Practices
ITSM Tools
ITIL Processes
Root Cause Analysis
Technical Documentation
Communication Skills
Mentoring
Problem-Solving

Some tips for your application 🫡

Tailor Your CV: Make sure your CV reflects the skills and experiences that match the 3rd Line IT Support Engineer role. Highlight your expertise in Microsoft technologies and any relevant managed services experience to catch our eye!

Craft a Compelling Cover Letter: Use your cover letter to tell us why you're the perfect fit for this position. Share specific examples of how you've tackled complex incidents or led teams, and show us your passion for improving IT services.

Showcase Your Problem-Solving Skills: In your application, don’t just list your technical skills; demonstrate how you've used them to solve real-world problems. We love candidates who can think independently and proactively!

Apply Through Our Website: We encourage you to apply directly through our website for the best chance of getting noticed. It’s the quickest way for us to see your application and get the ball rolling on your journey with us!

How to prepare for a job interview at C4S Search Ltd

✨Know Your Tech Inside Out

Make sure you brush up on your Microsoft stack expertise, especially around Microsoft 365, Azure, and Windows Server. Be ready to discuss specific scenarios where you've used these technologies to solve complex issues.

✨Prepare for Problem-Solving Questions

Expect to be asked about how you handle major incidents and root cause analysis. Think of examples from your past experience where you took ownership of a problem and led the resolution process.

✨Show Off Your Mentoring Skills

Since mentoring is part of the role, prepare to talk about your experience in developing junior engineers. Share specific instances where you’ve helped others grow their technical skills or improve service quality.

✨Communicate Clearly and Confidently

Practice explaining complex technical concepts in simple terms. You might need to demonstrate this during the interview, especially when discussing how you would communicate with non-technical stakeholders.

3rd Line IT Support Engineer
C4S Search Ltd

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