Infrastructure TDA

Infrastructure Technical Design Authority (TDA) Overview We are seeking an experienced Infrastructure Technical Design Authority (TDA) to support several strategic infrastructure and cloud transformation initiatives within a large enterprise environment.

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This role will provide technical leadership across infrastructure, cloud, platform and security domains, ensuring solutions are robust, scalable, secure and aligned with architectural standards.

The successful candidate will work closely with project teams, architects and stakeholders to define, review and govern technical designs across Azure, Microsoft technologies, virtualisation platforms and hybrid hosting environments.

Contract Details Role: Infrastructure Technical Design Authority (TDA) Contract Length: Initial 6 months Extension: Expected Location: Belfast preferred, UK-wide candidates considered Working Pattern: Primarily remote with occasional onsite meetings Interview Process: Single-stage interview Rate: Competitive market rates Key Responsibilities Provide technical leadership across multiple infrastructure projects.

Review, challenge and approve technical designs.

Produce and review High-Level Designs (HLDs).

Produce and review Low-Level Designs (LLDs).

Define and maintain infrastructure standards and roadmaps.

Ensure solutions align with enterprise architecture principles.

Support cloud adoption and infrastructure modernisation initiatives.

Work closely with project teams, engineers and stakeholders to shape technical solutions.

Provide governance and technical assurance throughout project lifecycles.

Support design decisions across infrastructure, cloud, networking, security and hosting platforms.

Technology Environment The environment includes a mixture of: Microsoft Azure Microsoft 365 VMware Virtualisation Technologies Hybrid Cloud Platforms Enterprise Infrastructure Identity & Access Management Infrastructure Security Storage & Backup Solutions Windows Server Technologies Hosting & Datacentre Services Essential Experience Candidates should demonstrate Experience in: Enterprise Infrastructure Engineering Infrastructure Architecture or Technical Design Authority responsibilities Infrastructure governance and technical assurance Azure infrastructure and cloud solutions Microsoft 365 technologies VMware and virtualisation platforms Hybrid cloud and hosting environments Infrastructure modernisation and migration programmes Producing and reviewing HLDs and LLDs Working with senior technical and business stakeholders Managing technical risk and solution approval processes Ideal Background Suitable candidates may currently be working as: Infrastructure TDA Infrastructure Architect Technical Architect Cloud Infrastructure Architect senior Infrastructure Consultant Azure Infrastructure Architect Lead Infrastructure Engineer Infrastructure Design Authority Key Attributes Strong communication and stakeholder management skills.

Ability to challenge and influence technical decisions.

Experience operating in complex enterprise environments.

Strong documentation and governance capabilities.

Ability to balance strategic thinking with practical delivery considerations.

This is an excellent opportunity to work on large-scale infrastructure transformation initiatives while operating at the centre of technical decision-making and architecture governance.

Job Title: Infrastructure TDA Location: Belfast, UK Job Type: Contract to Hire Trading as TEKsystems.

Allegis Group Limited, Maxis 2, Western Road, Bracknell, RG12 1RT, United Kingdom.

No.

2876353.

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