Arc
Senior Network Engineer - Basildon
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Senior Network Engineer - Basildon
Senior Network Engineer – Arc
About Arc
Arc is a leading IT Managed Services Provider (MSP) based in the UK, delivering innovative and reliable IT solutions. 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
As a Senior Network Engineer, you will be the senior technical authority for the design, delivery, and ongoing support of both our internal service-provider/datacentre network and our managed customer estates, working alongside the Network and ISP engineering team. This is a hands-on senior role covering routing, switching, firewalling, and wireless across multiple vendors, including key expertise in:
- Fortinet (FortiGate, FortiManager)
- Cisco (Nexus, ASR)
- Service-provider routing, built on BGP
Responsibilities include:
- Project ownership for installations and migrations, liaising with Network Manager, Account Managers, and customers.
- Maintaining and developing our ISP and datacentre network (core routing, peering, traffic/edge connectivity).
- Firewall configuration, management, and troubleshooting (FortiGate/FortiManager/Sophos XG).
- Cisco Nexus (datacentre) and ASR (edge/service-provider) deployments.
- BGP design, peering, and route policy management (internal/customer networks).
- Participation in the 24x7 on-call rota (with callout payments in addition to base salary).
- Monitoring and alerting systems optimisation.
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The role is hybrid-based (Basildon, Essex), with WFH and customer site visits.
Key Responsibilities
- End-to-end project ownership for network installations and migrations.
- Datacentre network maintenance (resilient core, structured cabling, copper/fibre optic connections).
- Troubleshooting multi-customer firewall deployments (Fortinet and Sophos).
- Cisco Nexus and ASR deployments and support.
- BGP configuration and troubleshooting across ISP and network strands.
- Part-time on-call (24x7) rotations (paid callouts).
- Developing and maintaining alerting protocols for customers.
Essential Skills & Experience
- Senior network engineering experience (MSP, ISP, or service-provider environment).
- Expertise in BGP (design, peering, route policy, and production troubleshooting).
- Cisco routing and switching (Fortinet, Nexus, ASR — including libraries like NX-OS, IOS-XE).
- Fundamental knowledge of Layer 2 (VLANs, trunking, STP) and Layer 3 (Cisco/Smart OS, redundancy/HA design).
- Datacentre networking experience (structured cabling).
- Firewall experience (FortiGate/FortiManager, IPS, web/endpoint filtering, SSL VPN).
- Leased lines, traffic routing (FTTC/FTTP) and peering understanding.
- Troubleshooting approach and clear customer communication skills.
- Full UK driving licence.
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Desirable Skills
- Cisco CCNP or Fortinet NSE/FCP certifications.
- Exposure to multi-vendor networking (Aruba, Cisco Meraki).
- Additional firewall vendors (Sophos, Cisco ASA/Firepower).
- Basics of Hyper-V/Virtualisation (VMware).
- Regulation/availability experience (CNI, Data Centre).
Personal Attributes
- Honest, dependable, and reliable — particularly for on-call commitments.
- Accountable and able to manage tasks independently.
- Customer-focused collaboration — team player with problem-solving acumen.
- Continuous development mindset.
What We Offer
- A dynamic, inclusive work environment.
- Career progression and upskilling opportunities.
- Competitive salary + on-call allowance (separate remuneration).
Diversity & Inclusion Notice
We celebrate diverse perspectives! Apply if excited — disparities may not diminish your fit. Equal opportunity employer; committed to accessibility, offering reasonable adjustments.
UK Right to Work: Mandatory. No sponsorship available.
Note: All perspectives welcome regardless of your geographical or industry-specific networking background.
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