Customer Solutions Design Specialist (Fortinet)

BT Group; Park Central; On-site; GBP 90,000 - 120,000; Full time

Benefits offered by this job

10% on target annual bonus

25 days Holiday

Access to online private GP 24/7

Paid carers leave up to 2 weeks

Maternity/paternity/adoption leave - 8

BT product discounts

Pension scheme 5% you + 10% us

Holiday purchase scheme

Job summary

BT Group is seeking a senior network design specialist to craft secure, scalable architectures for enterprise customers. You will own complex Fortinet Secure SD-WAN designs from requirements to delivery, serving as a trusted technical advisor to customers and internal teams.

You will collaborate with architects, security and delivery teams to ensure BT standards, while shaping design frameworks and mentoring colleagues. Strong communication and stakeholder engagement are essential for success.

Qualifications

• Experience designing enterprise networks and Fortinet Secure SD-WAN solutions in complex environments.
• End-to-end solution design including WAN, LAN, routing, switching, security and resilience.
• Engage with customers and senior stakeholders to translate requirements into technical designs.

Responsibilities

• Design and deliver end-to-end network solutions focusing on Fortinet Secure SD-WAN.
• Own complex designs from requirements gathering to implementation and handover.
• Act as a trusted technical advisor translating business needs into scalable network designs.
• Support workshops, design reviews, bids and pre-sales activities.
• Collaborate with architects, security and delivery teams for successful outcomes.
• Provide governance to ensure BT standards and best practices.
• Contribute to network design frameworks and reusable patterns.
• Mentor colleagues and share expertise across the design community.

Skills

Fortinet Secure SD-WAN

Network design leadership

Stakeholder engagement

Communication skills

Education

Fortinet NSE certifications

Tools

Infrastructure as Code

Job description

You’ll be responsible for designing and delivering secure, scalable and resilient network solutions for BT’s enterprise customers. Acting as a technical specialist, you’ll take ownership of complex network designs, ensuring they align with customer requirements, industry best practice and BT’s strategic network architecture. You’ll work closely with customers, architects, project teams and bid specialists to develop innovative network solutions that enable digital transformation, improve application performance and strengthen security. This is a highly visible customer-facing role, combining technical expertise with consultative engagement and design leadership. What you’ll be doing

• Design and deliver end-to-end network solutions with a focus on Fortinet Secure SD-WAN technologies.
• Own complex network designs from requirements gathering through to implementation and handover.
• Act as a trusted technical advisor, translating business and operational requirements into scalable network solutions.
• Support customer workshops, technical design reviews, bids and pre-sales activities.
• Collaborate with architects, security specialists and delivery teams to ensure successful customer outcomes.
• Review network designs and provide governance to ensure compliance with BT standards and best practices.
• Contribute to the development of network design frameworks, standards and reusable solution patterns.
• Mentor colleagues and share technical expertise across the wider design community.

• Experience designing enterprise networks, including Fortinet Secure SD-WAN solutions in complex customer environments.
• End-to-end solution design expertise, covering WAN, LAN, routing, switching, security and network resilience.
• Ability to engage with customers and senior stakeholders, translating business requirements into technical network designs.
• Technical leadership and design governance experience, including design reviews, mentoring and best-practice development.
• Excellent communication and presentation skills, with experience supporting workshops, proposals and customer-facing technical discussions.

Desirable Skills / Experience

• Fortinet certifications (NSE, FCF, FCSS or equivalent).
• Experience with SASE, Zero Trust and cloud networking architectures.
• Knowledge of public cloud networking (AWS, Azure and/or Google Cloud).
• Understanding of network automation, orchestration and Infrastructure as Code.
• Experience with secure access technologies, firewalls and network security design.
• Knowledge of MPLS, Internet WAN, SD-WAN migration and network transformation programmes.
• Experience shaping network strategy, standards and future-state architectures.

With over 180 years of heritage, BT Business has brought together our best people and capabilities into a B2B powerhouse serving 1.2 million business customers in the UK

We’re a 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 are Customer-First Challengers, who are Committed, Clear and Connected. 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. As a member of our team, you will be part of an organisation that celebrates difference, fosters innovation and provides you with opportunities to be your best. With millions of businesses relying on us daily, joining BT means you can be part of a diverse and multi-skilled team that makes a significant impact to society.

Our Package Tailored benefits make a real difference. That's why we offer a comprehensive range to support your growth, wellbeing, and everyday life. You can design the package to suit you and your lifestyle. Your core benefits include:

• 10% on target annual bonus
• 25 days Holiday
• Access to an online private GP 24/7 for you and your immediate family
• Market-leading paid carers leave with up to 2 weeks off
• Equalized maternity, paternity, and adoption leave - 18 weeks' full pay and 8 weeks' half pay
• Discounted EE and BT products, including mobile and broadband
• Market leading Pension scheme - 5% from you and 10% from us
• Holiday purchase scheme