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, PowerApps and AI. Our team is dedicated to delivering outstanding customer service and technical expertise to help businesses succeed.
Role Overview:
The Senior Network Engineer is responsible for the design, delivery, and ongoing support of complex customer and internal network environments, spanning datacentre, 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
Key Responsibilities
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
Required Skills & Experience:
Strong networking background and understanding of the following technologies:
Layer 2 understanding (ARP, MAC)
IP addressing and subnetting
Spanning Tree Protocol (STP)
Strong understanding of Layer 3 routing protocols:
OSPF
EIGRP
BGP
VPN technologies:
IPSec Site-to-Site VPNs
SSL VPNs
Exposure to a range of firewall vendors, including:
FortiGate & FortiManager
Sophos XG
Cisco ASA / Firepower
WatchGuard
Demonstrable skills in managing firewalls and related technologies, such as:
Zone-based firewalling
NAT (Network Address Translation)
Web, IPS and AV filtering policies
Device and user authentication integration
Strong switching skills with multi-vendor experience:
Cisco IOS
HP Aruba
VLAN creation, management, trunking and tagging
Cabling and connector types (Cat5/Cat6 copper and fibre optic cabling)
Wireless installation and support:
Experience with Ubiquiti UniFi deployments
Experience with Cisco Meraki deployments
Experience working with and managing Datacentre networks
Strong troubleshooting skills
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
What We Offer:
A dynamic and supportive working environment.
Opportunities for career progression within the company.
Ongoing training and professional development.
Competitive salary
Key Points:
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.
Skills Required
- Strong Layer 2 networking knowledge, including ARP, MAC, IP addressing, subnetting, and STP
- Strong Layer 3 routing experience with OSPF, EIGRP, and BGP
- Experience with IPSec site-to-site VPNs and SSL VPNs
- Experience managing firewalls, including FortiGate, FortiManager, Sophos XG, Cisco ASA, Cisco Firepower, or WatchGuard
- Knowledge of zone-based firewalling, NAT, web, IPS, and antivirus filtering policies, and authentication integration
- Multi-vendor switching experience with Cisco IOS and HP Aruba, including VLANs, trunking, and tagging
- Experience with Cat5/Cat6 copper and fibre optic cabling and connectors
- Experience installing and supporting Ubiquiti UniFi and Cisco Meraki wireless deployments
- Experience managing datacentre networks
- Strong network troubleshooting skills
- Understanding of FTTC, FTTP, and leased-line connectivity
- Experience with Windows Server roles, including Active Directory, DHCP, DNS, and NPS
- Experience with Hyper-V or VMware
- Excellent customer-facing manner
- Previous experience in a similar IT role
- Full UK driving licence
- Cisco CCNP or other network qualifications
- Right to live and work in the UK
What We Do
Arc Systems was incorporated in 1992 and is a privately owned limited company. Arc offers experience in IT Support, Managed Backup, Cloud Services and Internet Connectivity to over 300 clients predominately within the SME market. Arc Systems are an ISO 9001 certified company we ensure the highest quality of standards and industry best practice. In providing cost-effective solutions to its customers, Arc aims to meet its clients’ requirements with a helpful personal touch and a complete range of in-house services. Our employees are the key to our success and we are proud to say our team always delivers on technical proficiency, customer care and dedication. Our consultants are experienced professionals who have spent the majority of their careers working within the IT sector. This makes our consultants acutely aware of the importance of their role supporting our customers IT systems. We aim to build strong customer relationships resulting in a high year on year customer retention rate. We always work closely with our clients to ensure their IT expectations are delivered. We offer a comprehensive portfolio of IT data and voice services enabling us to tailor solutions to meet our customers IT objectives. In July 2011 we relocated our head-office to Basildon, Essex to a purpose built 10,000sqft premises. The office is also home to our ISP partner ChunkyChips which together we share a newly built N+1 datacentre facility.
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