Technical Design Authority (SD-WAN / Security Design)

GTT; United States; Remote; GBP 70,000 - 100,000; Full time

Job summary

GTT is seeking a Technical Design Authority to lead design, documentation and management of security and SD-WAN architectures. You will own bespoke security models, align with strategic objectives, and oversee deployment handovers while engaging in presales activities.

The role covers global accounts, cross-functional collaboration with product and operations, and occasional customer-site work. Remote with travel, suitable for a senior security design professional.

Qualifications

• 4+ years’ experience in network security design and implementation.
• Ability to design secure, scalable networks and reference architectures.
• Experience in multi-vendor enterprise environments and ITIL V3 familiarity.

Responsibilities

• Design bespoke security models and review advanced configurations.
• Lead design discussions and create deployment guides and roadmaps.
• Support pre-sales with security posture positioning for customers.
• Collaborate with product management to update standards and guidelines.
• Engage in customer deployments, POC and handover to operations.

Skills

SD-WAN design

Security architecture

Multi-vendor environments

ITIL V3

Presales support

Security concepts (Fortinet, Palo Alto

Tools

Fortinet

Palo Alto

Job description

Position Title: Technical Design Authority (SD-WAN and Security Design)

Location: Remote with travel as and when required,

Join GTT to be part of a global mission to simply and securely connect people and data through innovative, AI-driven solutions. We empower curious, adaptive professionals to take ownership of their work, offering a culture where your ideas have a visible, real-world reach. If you are energized by complex challenges and a supportive team that lifts each other up, GTT is the place to build a rewarding career.

Role Summary:

In the role of TDA you will be responsible for designing, documenting and managing technical collateral to support agreed strategic objectives and the development of standard offerings and blueprint solutions in the security area. Also, you will be guarding the overall solution architecture of customer designs and be involved in the implementation, testing and handover to operations of these solutions. The TDA will actively participate in the presales process as well to allow continuity through service fulfilment.

Duties and Responsibilities:

• Design bespoke customer network security models, review and approve advanced (best practices and standards) security configuration and be personally involved in first deployments of the solution as well as in proof of concepts.
• Be engaged in the pre-sales process, supporting the sales engineer with positioning the right security posture to the customer.
• Monitor industry networking security updates, technologies and best practices to improve overall security management and to remain informed of new technical developments and trends in the industry.
• Liaise with Partners/Vendors to fulfil agreed customer expectations.
• Produce and endorse technical standards, reference architecture, deployment guides and technology roadmaps in close collaboration with product management. Create technical documentation, update standards and guidelines.
• The TDA Security can be allocated to 1 or more existing customer accounts to support the customer after and during the delivery. The customer will see the TDA as “the subject matter expert” for technical advice and consultancy on any security topic.
• In this role the candidate can be requested to occasionally work at customer premises.
• This is a flexible role within a team of highly skilled architects covering a broad range of technologies including LAN/WAN, Voice, Network & Information Security, Internet Services and UC Services.

Required Experience/Qualifications:

• Minimum 4 years’ experience in the network security industry.
• Develop design solutions (physical and logical) that follow engineering best practices
• Demonstrated knowledge of Fortinet, Palo Alto security design concepts, implementation and support.
• Demonstrable experience of working autonomously in a multi-vendor enterprise scale environment. Working knowledge and/or general understanding of technology methodologies such as ITIL V3.
• Act as a security expert, within the Managed Services Team for Service Delivery, Engineering, Operations, Product and Project Management.
• Offensive or Defensive hacking knowledge is a plus
• Knowledge and working experience in:
• Fortinet, Palo Alto security design concepts, implementation and support
• SASE and SSE environments and concepts
• Multi-platform design, implementation and support experience
• Working experience with SD-WAN technologies (Aruba Edgeconnect, Palo Alto Prisma, Forti Secure SD-WAN)
• Security Architecture and design multi-platform solutions for managed security service clients
• Technical lead during project planning, management and implementation of client solutions (Pilot & POC deployments).
• Participate in project calls with clients to review and capture low level design requirements, best practices and consultancy in terms of security posture.
• Creation of security posture standards for end-clients and regular review to keep them up to date.
• Demonstrable experience of turning business requirements into architectural building blocks.
• Assist in the identification and resolution of security related issues during project deployment.
• Demonstrable awareness of the financial impact of strategic / operational decisions and the ability to identify opportunity for cost reductions.
• Experience of working on major international and global accounts.
• Capable of managing multiple projects simultaneously.

Hours/Travel/Shift:

Standard Working Hours, Monday to Friday. Remote working, with some travel for team/customer meetings.

Our Commitments:

Commitments drive the speed and relevance required to transform our culture and deliver extraordinary value to our customers. By embracing these commitments together, we create a thriving environment where we lift each other up and achieve mutual success.

• Adaptive Mindset: We meet change head-on to build the capabilities we need now. We take personal ownership of our professional development to keep pace with change and actively drive it.
• Collective Impact: We treat innovation as a team sport, working powerfully together to create extraordinary impact. We collaborate openly and with a shared purpose and amplify our unique human strengths to solve complex challenges that technology alone cannot.
• Customer Ownership: We own our customers’ success, whether an internal stakeholder or an external client. We take full accountability, anticipate their needs and create smooth experiences to build trust with every touchpoint. In an automated world, personal ownership is GTT’s competitive edge.