Customer Solutions Design Specialist - Fortinet

Customer Solutions Design Specialist - Fortinet Job Req  : 52569

Posting Date : 28 Oct 2025

Function :
Design Unit :
Business Location : UK Wide, United Kingdom Salary :
Grade D Career Level : D Location :
Manchester, Birmingham, London, Bristol, Gosforth

Our team leads the way for implementing complex Voice, Network, Wireless and Security Solutions across a wide array of vendors such as Cisco, Fortinet, Juniper, Aruba, and Microsoft and technologies such as SD‑WAN, SD‑A, ISE, ACI, Webex, MS Teams & Next Gen FWs to name but a few. We take High Level Designs into the Low Level detail at the Post‑Sale stage, then implement the solution followed by thorough testing before handing over into the relevant support or managed service teams.

We’re looking for someone who not only has the technical ability and aptitude but the passion to lead our wider Technical Designers through the solution and drive to completion, keeping the customer at the heart of everything they do. You’ll need the ability to translate the technical and business perspectives and to lead others.

• Captures detailed customer technical requirements and translation to detailed solution design in accordance with design methodologies.
• Acts as a SPOC, managing and delivery of the technical direction and helps determine the optimum solution design for customers.
• Manages the review and validation processes for both new developments and in‑life products and services, ensuring full integration across all aspects, considering the broad impact of solutions on the product roadmap.
• Drives the improvement of design and delivery capabilities for end‑to‑end technical solutions.
• Manages customer solution design engagement and statement of work creation, including any 3rd party deliverables.
• Facilitates the development of strong customer relationships at the senior level through providing specialist service design expertise, and influencing the customer’s service strategy and operational decisions.
• Drives consistency in architecture and technical processes, with the aim of reducing costs and increasing productivity.
• Undertakes customer migration planning and implementation.
• Resolves complex solution and service issues, leads root cause analysis, troubleshooting and escalation.
• Pursues the identification of potential risks and the implementation of controls and mitigations, ensuring compliance with relevant industry and company policies.
• Ensures the delivery of thought leadership in complex bids and agreeing strategic approach as part of customer solution design.

• Proven experience in network design, ideally with enterprise or public sector clients.
• Strong knowledge of modern networking technologies – Fortinet SD‑WAN, WAN / LAN, WiFi.
• Fortinet SD‑WAN Certifications (Preferred):
  • + FCSS – Network Security (SD‑WAN Focus):
    Expertise in deploying and managing Fortinet Secure SD‑WAN solutions. Requires FCSS – Secure Access Service Edge and FCSS – SD‑WAN 7.4 Architect exams.
  • + NSE 7 – SD‑WAN 7.2:
    Validates skills in configuring and troubleshooting Fortinet SD‑WAN features. Requires NSE 4 certification.

• A competitive starting salary embedded in a comprehensive total rewards package, including a 10% on-target bonus.
• Pension plan:
  Contribute 5%, and BT will contribute 10%.
• Generous annual leave: 25 days (plus bank holidays), increasing with service.
• Inclusive family leave policies: 18 weeks’ paid leave, and up to two weeks’ paid leave for carers, regardless of family structure.
• A wide range of flexible benefits, including cycle-to-work, private healthcare, season ticket loans, and retail discounts, including our BT shop.
• World-class training and development opportunities in an inclusive environment.
• Discounted broadband, mobile, and TV packages, including Discovery+ and TNT Sports.

With over 175 years of heritage, BT is now the flagship business brand of BT Group. We’ve brought together our best people and capabilities into a B2B powerhouse serving 1.2 million business customers internationally. We’re a global leader for secure connectivity and collaboration platforms for businesses of all shapes and sizes, from big household names and government departments, right through to sole traders and new start‑ups.

But it’s not just the technology that matters, it’s what it can do to help them build stronger, smarter, more secure businesses. We value diversity and inclusion and believe in making a positive impact. We connect for good by championing digital inclusion and equipping people, businesses and communities with digital skills to thrive.