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Technical Design Authority



IT, Design
United Kingdom · Remote
Posted on Wednesday, February 14, 2024

Job Title: Technical Design Authority (Security)

Location: UK (remote)

About GTT:

GTT provides secure global connectivity, improving network performance and agility for your people, places, applications, and clouds. We operate a global Tier 1 internet network and provide a comprehensive suite of cloud networking and managed solutions that utilize advanced software-defined networking and security technologies.

We serve thousands of businesses with a portfolio that includes SD-WAN and other WAN services, internet, security, and voice services. Our customers benefit from a customer-first service experience underpinned by our commitment to operational excellence. For more information on GTT, please visit www.gtt.net.

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:

o Fortinet, Palo Alto security design concepts, implementation and support

o SASE and SSE environments and concepts

o Multi-platform design, implementation and support experience

o Working experience with SD-WAN technologies (Aruba Edgeconnect, VMWare Velocloud, 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


Standard Working Hours, Monday to Friday

Core Competencies:

· Accuracy and Attention to Detail: Understanding the necessity and value of accuracy; ability to complete tasks with high levels of precision.

· Active Learning: Understanding the necessity for continuous personal growth and learning; ability to gauge one's strengths, limitations and interests accurately, and use this knowledge for purposes of performance effectiveness self-development.

· Conflict Management: Knowledge of managing conflicts; ability to anticipate, recognize, and deal effectively with existing or potential conflicts at the individual, group, or situation level.

· Decision Making and Critical Thinking: Knowledge of the decision-making process and associated tools and techniques; ability to accurately analyze situations and reach productive decisions based on informed judgment.

· Effective Communications: Understanding of effective communication concepts, tools and techniques; ability to effectively transmit, receive, and accurately interpret ideas, information, and needs through the application of appropriate communication behaviors.

· Managing Multiple Priorities: Knowledge of effective self-management practices; ability to manage multiple concurrent objectives, projects, groups, or activities, making effective judgments as to prioritizing and time allocation.

· Teamwork: Knowledge of the necessity and value of teamwork; experience with; ability to work cooperatively towards shared goals and being supportive of others at all levels.

· Planning and Organizing: Knowledge of the process of planning and arranging tasks and resources; ability to plan and organize both time and resources to get things completed while structuring and maintaining work in a systematic and highly methodical way.

· Problem Management: Knowledge of the processes involved in problem control, error control and the production of management information or computer hardware; ability to identify the root cause of problems in a timely and accurate manner and bring them to a successful resolution.

· Telecom Products and Services: Knowledge of telecom products and services; ability to apply product and service knowledge appropriately to address customer needs.

Universal Competencies:

· Continuous Improvement: Knowledge of transformation initiatives to drive fundamental changes, enhance responsiveness and efficiency to core business practices. Ability to drive cultural changes from best effort to results oriented.

· Customer First (Customer Facing): Knowledge of customer interactions, creating a culture of accountability, collaboration and partnership. Ability to build an environment supporting customer value creation at every level.

· Operational Excellence: Understanding the system-driven processes for consistency and scalability. Ability to re-focus processes and systems from integration activity to maximizing a positive customer impact and anticipating future trends.