Arc
Senior Network Engineer - Basildon
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Senior Network Engineer - Basildon
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
As a Senior Network Engineer, you will be a senior technical authority for the design, delivery, and ongoing support of both our internal service-provider/datacentre network and managed customer estates, working alongside our existing network and ISP engineering team.
This is a hands-on senior role spanning:
- Routing
- Switching
- Firewalling
- Wireless
With Fortinet (FortiGate/FortiManager) and Cisco (Nexus/ASR) as its core, it features a strong service-provider routing element built on BGP.
You will:
- Own installation and migration projects end-to-end and play a key role in our 24x7 on-call rota, covering CNI customers and our ISP/datacentre platform.
- Work in a mix of office, home-based roles, and customer site visits for installation and support.
On-Call Support
• Separate on-call allowance, paid callout payments in addition to base salary.
Location
Basildon, Essex — hybrid (office-based with WFH on occasion and customer site visits).
Key Responsibilities
- Own network installation and migration projects end-to-end, liaising with the Network Manager, Account Managers, and customers.
- Maintain and develop our ISP and datacentre network, including:
- Core routing
- Peering/transit
- Edge connectivity
- Configure, manage, and troubleshoot multi-customer firewall deployments (FortiGate, FortiManager, Sophos XG).
- Design, deploy, and support:
- Cisco Nexus (datacentre)
- ASR (edge/service-provider) platforms
- Own:
- BGP design
- Peering
- Route policy
- Troubleshooting across internal and customer networks
- Participate in the 24x7 on-call rota, supporting CNI customers and our ISP/datacentre platform.
- Maintain and develop monitoring and alerting systems.
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Essential Skills & Experience
- Senior-level network engineering experience within an MSP, ISP, or service-provider environment.
- Fluency in BGP:
- Design
- Peering
- Route policy
- Production troubleshooting
- Strong Cisco routing and switching, including:
- Nexus (NX-OS, datacentre/vPC)
- ASR (IOS-XE/edge)
- Solid Layer 2 / Layer 3 fundamentals:
- VLANs
- Trunking/tagging
- STP
- EIGRP
- Redundancy and high-availability (HA) design
- Datacentre network experience:
- Resilient core
- Structured cabling
- Copper and fibre optic types/connectors
- Strong Firewall and Fortinet experience for firewalling at scale with:
- FortiManager
- Zone-based firewalling and NAT
- IPS, web, and AV filtering policies
- IPSec site-to-site and SSL VPNs
- Understanding of:
- Internet connectivity (FTTC/FTTP/leased line)
- Transit/peering concepts
- Methodical troubleshooting skills
- Excellent customer-facing manner with clear technical communication
- Full UK driving licence.
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Desirable Skills & Experience
- Cisco CCNP or equivalent, Fortinet NSE/FCP certifications.
- Multi-vendor exposure to:
- Switching (HPE Aruba, Cisco Meraki, Ubiquiti UniFi)
- Additional firewall vendors (Sophos, Cisco ASA/Firepower)
- Windows server concepts and virtualisation (Hyper-V/VMware).
- Prior experience supporting:
- CNI/Data centre
- Regulated, high-availability environments.
Personal Attributes
- Honest, dependable, and reliable, particularly for on-call commitments.
- Calm under pressure, methodical when troubleshooting.
- Self-managing, capable of taking full ownership and delivering end-to-end work.
- Customer- and service-focused team player.
- Committed to continual professional development.
What We Offer
- A dynamic and supportive working environment.
- Career progression opportunities.
- Ongoing training and professional development.
- Competitive salary.
Key Points
Diversity & Inclusion
- We celebrate diverse backgrounds and perspectives, making us stronger.
- Even if your experience does not align perfectly, apply if excited about the role.
- An equal opportunity employer — we value diversity and do not discriminate.
= Criteria =
- Race
- Religion
- Colour
- National origin
- Gender
- Sexual orientation
- Age
- Marital status
- Veteran status
- Disability status
UK Right to Work
All applicants must have the right to live and work in the UK. We cannot sponsor at this time.
Accessibility
- Committed to providing reasonable adjustments for candidates with disabilities.
- If requirements are needed, please detail them in your application.
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