Consulting Solution Architect – Key Accounts

FFP International Search; United Kingdom; On-site; GBP 90,000 - 130,000; Full time

Job summary

A leading consulting firm is looking for a Senior Consulting Solution Architect to drive advanced solution architecture initiatives with key clients in the UK and internationally. You will engage directly with CTOs and senior architects to shape network strategies and influence technology decisions. The ideal candidate has over 10 years of experience in ISP/Telco environments, strong knowledge of networking protocols, and excellent communication skills. This full-time role is based in London with a focus on telecommunications.

Qualifications

• 10+ years’ experience in ISP/Telco networking environments.
• Strong expertise in Layer 2 and Layer 3 networking and routing protocols.
• Excellent communication skills and strong customer focus.
• Experience with OSS/BSS systems and API-based integrations (REST/JSON).
• Knowledge of EVPN/VXLAN and modern network architectures.
• Ability to work independently with high autonomy.
• Excellent communication skills and strong customer focus.

Responsibilities

• Lead advanced solution architecture engagements with key network operator customers.
• Assess existing environments and design future-state architectures.
• Support hands-on implementation with high-performing teams.
• Build trusted advisory relationships across ISP/Telco networks.
• Influence technology decisions at CTO/senior architect level.

Skills

Layer 2 and Layer 3 networking

BGP

OSPF

IS-IS

MPLS

TCP/IP

security protocols

network troubleshooting

API-based integrations

EVPN/VXLAN

Cloud experience

SaaS experience

SDN experience

Communication skills

Customer focus

Education

Networking certifications

Tools

Cisco

Juniper

Nokia

Job description

Consulting Solution Architect – Key Accounts

We are seeking a senior Consulting Solution Architect / Senior Sales Engineer to lead advanced solution architecture engagements with key network operator customers in the UK and internationally. This role involves direct technical engagement at CTO and senior architect level, shaping network strategy and influencing technology decisions.

You will assess existing environments, design future-state architectures, and support hands‑on implementation. Working with small, high‑performing teams, you will build trusted advisory relationships and provide technical leadership across complex ISP and Telco networks.

Key Requirements

• 10+ years’ experience in ISP/Telco networking environments
• Strong expertise in Layer 2 and Layer 3 networking and routing protocols (BGP, OSPF, IS‑IS, MPLS)
• Solid understanding of TCP/IP, security (ACLs, firewalls, VPNs), and network troubleshooting
• Experience with network management, OSS/BSS systems, and API‑based integrations (REST/JSON)
• Knowledge of EVPN/VXLAN and modern network architectures
• Ability to work independently with high autonomy
• Excellent communication skills and strong customer focus
• Cloud, SaaS, and SDN experience
• Familiarity with Cisco, Juniper, and Nokia platforms
• Relevant technical certifications

Seniority level

Mid‑Senior level

Employment type

Full‑time

Job function

Information Technology, Sales, and Business Development

Industries

Telecommunications

Location

United Kingdom – London, England