Senior Network Engineer

About Arc

Arc is a leading IT Managed Services Provider (MSP) based in the UK, delivering innovative and reliable IT solutions to businesses across various industries. With a strong reputation for excellence, we offer a range of services, including IT support, hybrid cloud solutions, cybersecurity, infrastructure management, Power Apps and AI. Our team is dedicated to delivering outstanding customer service and technical expertise to help businesses succeed.

The Senior Network Engineer is responsible for the design, delivery, and ongoing support of complex customer and internal network environments, spanning data centre, ISP, and on-premise infrastructures. The role involves taking full ownership of network installation projects, providing senior-level escalation support, and working closely with Network Management, Sales, and customers to deliver robust, secure, and scalable solutions. This position also requires proactive network monitoring, maintenance, and participation in a 24x7 support rota, with occasional out-of-hours work to meet customer and operational requirements.

This role will entail a mix of office/home based work as well as customer site visits for installation/support

• To take ownership of installation projects, and liaise with Network Manager, Account Managers and Customers to deliver the installation project
• To carry out ongoing maintenance and development of the DC & ISP network
• Assist sales to answer technical questions for new customer proposals
• Assist with the maintenance of monitoring systems to provide alerting
• Pro‑active maintenance relating to software and firmware updates of networking equipment
• Occasional out of hours tasks depending on customer requirements on downtime around support and install tasks
• Included within the 24x7 OOH call rota
• To provide Network support for escalated tickets from Primary Helpdesk Team - remote & onsite if necessary

• Strong Networking background and understanding of the following technologies
• Layer 2 understanding (ARP, MAC)
• IP Addressing & subnetting
• Spanning Tree
• Strong understanding of Layer 3 routing protocols
• OSPF
• EIGRP
• BGP
• Strong troubleshooting skills
• VPN Technologies
• IPSEC site to site
• SSLVPN
• Exposure to a range of Firewall vendors such as:
  Forti Gate & Forti Manager, Sophos XG, Cisco ASA / Firepower, Watchguard
• Demonstratable skills in managing firewalls and related technologies such as:
  Zone based firewalling, NAT, Web, IPS & AV filtering policies, Device / User authentication integration
• Strong Switching skills and multi‑vendor exposure:
  Cisco IOS, HP Aruba, VLAN creation, management and trunking/tagging, Cabling/connector types (Copper Cat5/6 & fibre cabling types)
• Wireless installation and support:
  Experience with Ubiquiti Unifi and Meraki based deployments
• Experience working with and managing Data centre networks
• Understanding of different Internet connectivity types – FTTC/FTTP/Leased Line
• Experience with Windows servers and roles such as AD/DHCP/DNS/NPS
• Experience with Hyper‑V / VMWare technologies
• Excellent customer facing manner
• Previous experience in a similar IT role
• Cisco CCNP and any other network qualifications would be an advantage
• Full UK Driving license

• A dynamic and supportive working environment.
• Opportunities for career progression within the company.
• Ongoing training and professional development.
• Competitive salary

Diversity & Inclusion: We celebrate diverse backgrounds and perspectives; they make us stronger. If you’re excited about this role, apply even if your experience doesn’t align perfectly. If not this one, you could be just the right fit for other roles we are recruiting for. 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.

UK Right to Work: All applicants must have the right to live and work in the UK. We cannot offer sponsorship at this time.

Accessibility: We are committed to providing reasonable adjustments for any candidates with disabilities. If you require adjustments, please outline these requirements in your application.