Network Services Provider Ltd
Senior Network Engineer
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Company Description
Network Services Provider Ltd (NSP) is a UK-based technology solutions company that helps businesses build, manage, and scale their digital capabilities. NSP specializes in IT infrastructure, networking and hardware, web and mobile app development, and IT staff augmentation. The company enables organizations to access the technology, expertise, and resources needed to operate efficiently and grow. With a focus on reliability, scalability, and cost-effectiveness, NSP delivers tailored solutions ranging from enterprise infrastructure to custom software and skilled IT professionals. Team members work closely with clients across industries to support their evolving business and technology needs.
About the Role
Job Title: Senior Network Engineer
Location: London, UK (Hybrid - Central London Office / 2 Days Remote)
Job Type: Full-time, Permanent
Salary: £50,000 – £55,000 + Bonus + Benefits
We are seeking an experienced Senior Network Engineer to design, maintain, and optimize our core enterprise routing, switching, and WAN infrastructure. In this hands-on role, you will act as a senior technical lead responsible for ensuring high availability across our office locations, data centres, and cloud connectivity points. You will take ownership of 3rd/4th line technical escalations, drive network lifecycle projects, and introduce automation to streamline routine operations.
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Key Responsibilities
- Core Network Operations: Design, configure, and manage enterprise routing and switching environments across BGP, OSPF, EVPN/VXLAN, and MPLS infrastructure.
- Perimeter & Security Management: Maintain Next-Gen Firewalls (Fortinet, Palo Alto, or Cisco ASA/Firepower) and configure secure VPN topologies.
- Hybrid Cloud Connectivity: Manage and optimize cloud networking gateways (AWS DirectConnect, Azure ExpressRoute, Transit Gateways).
- Network Automation: Implement Python scripts, Ansible playbooks, or Terraform code to automate routine network deployments and updates.
- Escalations & Incident Resolution: Lead 3rd/4th line troubleshooting for complex network outages, conducting root-cause analysis (RCA) and performance optimization.
- Documentation & Standards: Maintain low-level network design (LLD) documentation, architecture topology diagrams, and standard operating procedures.
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Requirements & Qualifications
Experience: 5+ years of hands-on experience operating as a Network Engineer in enterprise or managed service provider environments.
Core Technical Skills:
- Routing & Switching: Expert-level understanding of TCP/IP, BGP, OSPF, Spine-Leaf architectures, and VLAN/VXLAN design.
- Hardware Experience: Hands-on experience with Cisco, Arista, Fortinet, or Juniper platforms.
- Firewalls & VPNs: Experience deploying and troubleshooting Next-Generation Firewalls and site-to-site/remote access VPNs.
- Network Automation: Practical knowledge of Ansible, Terraform, or Python for network orchestration.
Certifications: CCNP Enterprise / Routing & Switching (required), PCNSE, or NSE 4/7 (preferred).
Work Authorization: Full right to work in the UK.
What We Offer
- Competitive salary dependent on experience, plus annual performance bonus.
- Hybrid working model (2 days remote, 3 days in London office).
- 25 days annual leave + UK bank holidays.
- Employer pension scheme, private health insurance, and paid certifications/training support.
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