Infrastructure Specialist - System Design Authority

  • Location

    Corsham, Wiltshire

  • Sector:

    IT, Engineering

  • Job type:


  • Salary:

    £550 - £700 per day

  • Contact:

    Experis UK

  • Contact email:

  • Job ref:


  • Published:

    6 months ago

  • Duration:

    8 months

  • Expiry date:


  • Client:


Infrastructure Specialist -System Design Authority



The System Design Authority (SDA) is responsible for the coherence and assurance of the design activity for the entirety of the OpNet Platform. This role reports directly to the SDA Lead. The primary focus of this role is to advise and assure the OpNet design is conforming with vendor best practice, security enforcement, and the Defence Digital architectural patterns and guidance.


  • Act as the point of contact for infrastructure architecture and threat mitigation on behalf of the SDA Lead.
  • Interact with programme, project and engineering team leads to ensure cross team, cross technology coherence to satisfy the infrastructure requirements of the OpNet system.
  • Support design vision creation, design decisions and design review as part of the end to end assurance process.
  • Support to Programme and Project Stakeholder engagement and RADIO
  • Liaise with external (to NSoIT(D)) stakeholders to ensure end-to-end designs are being delivered across the wider Defence landscape.
  • Liaise with team leads across the NSoIT(D) Programme and wider defence digital organisations to ensure a robust solution is delivered within Time, Cost and Performance.

Position Requirements:

A minimum of 10 years demonstrable experience in the following:

  • Architecture and development of secure Hardware and Software solutions with successful delivery on complex, large scale programmes utilising emerging technologies where possible.
  • Strong Infrastructure Engineering background with experience working with an Engineering team to ensure compliance.
  • Proven demonstrable experience operating both as a Infrastructure Engineer and Infrastructure Architect
  • Detailed knowledge and understanding of JSP and over-arching HMG policy.
  • Writing technical requirements and producing detailed solution architectures.
  • Designing and implementing secure infrastructure solutions. This includes continuous monitoring and making improvements to those solutions.
  • Consulting and engineering in the development and design of infrastructure best practices and implementation of solid security principles across the project to meet business goals along with customer and regulatory requirements.
  • Rationalising network designs & their alignment against architectural best practice.

Due to the nature of the role, candidates are required to hold an active SC/DV clearance or be willing/ eligible to undergo the process.