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# Infrastructure TDA

- **Company:** TEKsystems
- **Location:** Belfast, UK (Remote available)
- **Experience:** Expert
- **Contract:** Temporary to permanent
- **Skills:** Microsoft Windows, Microsoft Azure, Cloud Computing, Data Centers, High-Level Architecture, Identity and Access Management, Microsoft Software, Windows Servers, Cloud Services, Virtualization Technology, Backup and Restore, IT Architecture, HybridCloud, Cloud Migration, Vmware
- **Published:** September 15, 2026
- **Apply:** https://www.totaljobs.com/job/technical-design-authority/teksystems-job107981336

## About the Role

* 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, * 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.

## Description

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

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., * 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., * 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


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