Senior Infrastructure Architect - Outside IR35 - (UK based)

Gigged AI is an On demand talent marketplace specialising in the IT and technology sector. We have an opportunity live at the moment for a Senior Infrastructure Architect (Outside IR35 - (UK based- Remote) within one of our clients.

All proposals will be reviewed directly by the hiring manager on the Gigged AI platform. In order to send a proposal please follow the below steps:

• head to app.gigged.ai and create a free talent profile
• once signed in, follow this link to the project - https://app.gigged.ai/find-a-gig/w4g0NXYG6y7
• you will now see a 'submit proposal' button
• please fill this in (intro, relevant experience, and attach CV to this)

Overview

The Gig offers mainly remote work with limited travel expected in Europe for workshops. The start date is tentatively November 2026.

Outside IR35

Rate £600-650 per day based on experience

Project Overview

This role requires a Senior Infrastructure architect skilled in vendor management. The role involves overseeing the infrastructure separation executed by a systems integrator, ensuring scope, quality, timelines, and costs are controlled. The project start is expected in November 2026.

Key Responsibilities

Act as the client-side control tower over the systems integrator managing infrastructure separation.

Define and own the target infrastructure architecture including hosting, network, security, identity, end-user services, and site infrastructure.

Set separation routes for different areas at Day 1, during the Transition Services Agreement (TSA), and at TSA exit.

Drive key design decisions through the design authority.

Assure supporting infrastructure for SAP ECC carve-out related to hosting, environments, connectivity, and cutover windows.

Define coexistence plans for Day 1 and TSA service scope and exit criteria.

Plan and govern migration and site cutovers.

Manage communication and information flow within the separation team regarding requests, dependencies, and data.

Translate technical positions into clear business language.

Required Skills and Experience

Proven experience in project management for infrastructure projects, especially overseeing third-party vendors.

Expertise in infrastructure architecture covering hosting, network, security, identity management, and site infrastructure.

Familiarity with SAP ECC system infrastructure requirements.

Vendor management skills for coordinating with systems integrators and other stakeholders.

Ability to plan and govern complex migration and cutover activities.

Strong communication skills to bridge technical details with business needs.

Deliverables

Comprehensive infrastructure architecture and separation plans covering all relevant domains.

Migration and cutover governance and plans.

Design authority decision frameworks and documentation.

TSA service scope and exit criteria documentation.

Regular reports on integration progress, risks, and issues tracking.