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Posted 02 August, 2026

Application Engineer

Invitise Ltd
Exeter, ENG, GB Full Time

Job Description

We're looking for a Senior Infrastructure Architect for a public sector client based in Surrey (remote/hybrid available), on an initial 9 month contract paying up to £650 per day.

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This is a hybrid role with some remote working available and occasional attendance in Surrey as needed.

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The successful Infrastructure Architect will provide technical architecture leadership and design assurance across a large-scale local government transition programme. You'll assess legacy infrastructure across multiple councils, baseline the current state, and develop safe, resilient transition and convergence options across networks, identity, Microsoft 365, telephony and cyber-security controls. You'll set technical design standards and decision records, and manage technical risks, dependencies and service continuity throughout.

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You will need proven experience working with the following:

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Infrastructure architecture and design assurance on complex, multi-site programmes

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Networking and connectivity, including network interconnect design

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Microsoft 365 tenant and domain dependencies

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Identity and access management

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Cyber-security controls and secure access to core systems and data

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You'll also need practical exposure to transition and convergence planning, including areas such as:

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Telephony and contact centre migration

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Managing technical risks, dependencies and service continuity

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Coordinating multi-disciplinary and third-party delivery teams

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Experience delivering within public sector or local government transformation would be beneficial.

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Interested?

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Please apply below.

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Infrastructure Architect, Technical Infrastructure Architect, Solutions Architect, Network Architect, Microsoft 365, Identity and Access Management, IAM, Networking, Telephony, Cyber Security, Surrey, Hybrid, Remote, Contract