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Job Description

Please note - you will be required to have (or gain) Security Clearance for this role - please only apply if you are eligible (5 years MINIMUM UK residency)

About the role

Join BT’s Defence & Defence Industry Partners team as a Customer Solutions Design Specialist, where your work will help design and deliver secure solutions that support critical Defence programmes and contribute to keeping the UK safe and secure.

Working within an existing team that delivers complex, bespoke and secure end to end network solutions and working with vendors such as Cisco, Juniper, Palo Alto and HPE Aruba amongst others.

This is a customer facing and customer focussed role, and you must be able to lead the technical direction of projects and build a strong, trusted relationship with them and senior stakeholders.

You’ll work closely with other teams such as our Solution Architects, Operations and Security teams and be a Subject matter expert enabling the successful delivery of complex, bespoke solutions.

What you’ll be doing

• Produce High quality, complex, multi vendor High level and Low level Design from concept to delivery
• Collaborating with our customer to turn their business needs into practical solutions.
• Technically Leading complex, bespoke projects
• Building strong relationships with customer and stakeholders
• Creation of statements of work, bills of materials
• As a subject matter expert sharing your Knowledge by coaching and mentoring colleagues and operational support teams
• Provide day-to-day technical leadership to TDAs and design teams
• Drive design assurance through peer reviews and technical governance checkpoints
• Plan and cost resource requirements against deliverables

Essential Skills / Experience

• 5+ years experience in Network Design within Enterprise, service provider or public sector
• Production of High level and low level designs in line with customer requirements, ability to understand business requirements and turn them into practical solution designs
• Knowledge and experience of Cisco and HPE Aruba WAN/LAN and SDWAN
• HPE Aruba Certified to Associate level or Cisco certified to CCNP level
• Strong stakeholder management skills
• Hold or be eligible to hold Security Clearance (not dual passport holder)

Desirable Skills / Experience

• Knowledge of Riverbed, Packeteer, Palo Alto NGFW and MPLS
• Experience working in defence or secure environments

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

You can select additional benefits, including healthcare, dental, gym memberships and more when you’re ready.
Ready to connect for good and help shape the future? Apply now.

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.

Company benefits

25 (UK, increasing with service) / 21 (India) days annual leave + bank holidays
Adoption leave – 18 weeks full pay, 8 weeks half pay, 6 months statutory
Bank holiday swaps
Buy or sell annual leave – buy up to 5 days/year pro rata
Carer’s leave – Two weeks paid leave
Cinema discounts
Coaching
Compassionate leave
Complimentary Medical Services
Cycle to work scheme
Employee assistance programme
Employee discounts
Enhanced maternity leave – 18 weeks full pay, 8 weeks half pay, 6 months statutory
Enhanced paternity leave – 18 weeks full pay, 8 weeks half pay, 6 months statutory
Enhanced pension match/contribution
Enhanced sick pay – 3 months
Faith rooms
In house training
L&D budget – sponsored accreditation available for certain professions
Learning platform – internal and external learning content via Degreed
Learning license – unlimited access
Lunch and learns
Mental health platform access – Silvercloud
Mentoring
Neo-natal leave
Open to job sharing
Open to part time work for some roles
Optional unpaid leave
Private GP service – 24/7 virtual GP access for UK colleagues
Referral bonus
Returnship
Salary sacrifice
Share options
Shared parental leave
Travel loan
Volunteer days – 3 volunteer days per year
Reservist leave
Fertility treatment leave
Pregnancy loss leave
Pregnancy support
Fertility treatment leave
Pregnancy loss leave
Pregnancy support
On-site catering
On-site barista
On-site shower
Modern office
Collaboration spaces
Private booths
On-site wellness room
Open to part-time employees
Open to compressed hours

Working at BT Group

Company employees:

100,000 across BT Group (24,000 at BT Business)

Gender diversity (m:f):

74.3:25.7 (BT Group)

Hiring in countries

Brazil

Hungary

India

Ireland

Malaysia

Singapore

United Kingdom

Office Locations

Awards & Accreditations

2nd - Best Workplace Culture

2nd - Best Workplace Culture

Flexa awards 2026
3rd – Most loved - Large companies

3rd – Most loved - Large companies

Flexa awards 2026
Most Family Friendly Company

Top 10 - Most Family Friendly Company

Flexa awards 2025
Best Career Progression

Top 10 - Best Career Progression

Flexa awards 2025

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