Level 3 Engineer; Azure​/Networks

Senior Network & Infrastructure Engineer

Location: Belfast
Salary: £40,000 - £50,000 + Benefits
Working Pattern: 5 Days per Week On-Site

Our client is seeking a Senior Network & Infrastructure Engineer to join their growing technical team. This is a newly created position driven by several new customer contracts and offers the opportunity to work on a mix of project delivery and technical support activities across a diverse customer base.

The successful candidate will primarily focus on delivering networking projects, including greenfield and brownfield network deployments, while also supporting the wider service desk function during quieter project periods. This role would suit an experienced engineer who enjoys hands‑on networking, customer engagement, and mentoring colleagues.

As a senior member of the engineering team, you will take ownership of complex networking deployments and act as a technical escalation point across networking, cloud, and infrastructure technologies.

Key responsibilities include:

• Design, implementation and deployment of wired and wireless networking solutions
• Installation, configuration and testing of switches, routers and wireless access points
• Delivery of both greenfield and brownfield network projects across customer environments
• Troubleshooting network performance issues, latency, connectivity problems and configuration faults
  
  Conducting site surveys, audits and deployment planning
• Supporting and mentoring junior engineers and acting as a technical escalation point
• Providing onsite customer support and maintaining strong client relationships
• Supporting Microsoft 365 and Azure environments, including administration and troubleshooting
• Producing technical documentation and maintaining monitoring systems
• Managing incidents, requests and problems while meeting agreed SLAs
• Participating in remote monitoring and management of customer environments

• Minimum 5 years' experience in a network-focused engineering role
• Experience leading or taking technical ownership of complex infrastructure and networking deployments
• Strong networking knowledge covering:
  • Switching
  • Routing
  • Wireless networking
  • Network troubleshooting and diagnostics
• Experience deploying and supporting enterprise network infrastructure
• Strong understanding of RF design principles and controller-based wireless architectures
• Experience conducting onsite deployments, customer engagement and site audits
• Microsoft 365 administration and troubleshooting experience
• Azure administration and troubleshooting experience
• Excellent customer-facing communication skills

• HPE/Aruba networking experience and certifications
• Cisco, Dell, HP or equivalent networking vendor experience
• Experience with Aruba Central, Clear Pass or similar network management platforms
• Network monitoring and documentation tools
• Experience supporting high-density wireless environments

• Strong problem-solving and troubleshooting skills
• Ability to manage multiple priorities effectively
• Customer-focused mindset with excellent communication skills
• Comfortable explaining technical concepts to non-technical stakeholders
• Highly organised with strong time management skills
• Collaborative team player who enjoys sharing knowledge and supporting colleagues

• Salary of £40,000 - £50,000 depending on experience
• Opportunity to work on varied and technically challenging networking projects
• Exposure to enterprise-scale customer environments
• Career development and vendor training opportunities
• Join a growing team supporting major client contracts

If you're an experienced networking professional looking for a hands‑on role that combines project delivery, customer engagement and technical leadership, we'd love to hear from you.