Senior Solutions Architect

Key Responsibilities

• Understand and document the current architecture, including two legacy operating systems, Microsoft ESB, integrations, data flows, dependencies, and the wider operational technology landscape.
• Design the target Operations systems architecture, replacing the legacy systems with a scalable Azure-based, event-driven architecture and event bus.
• Own integration architecture across optimisation solutions, courier applications, under-the-roof scanning, measuring devices, SaaS platforms, third parties, and other operational systems.
• Define data architecture and flows, including operational and event-data ingress into Databricks and Microsoft Fabric and integration with analytics, machine learning, and optimisation capabilities.
• Assess how one or multiple vendors would fit within the target architecture and provide technical assurance throughout selection and implementation.
• Review and challenge vendor and supplier designs, ensuring solutions remain secure, scalable, supportable, and aligned to enterprise standards.
• Define the transition roadmap from the current landscape through procurement, implementation, migration, and decommissioning, working across internal technology teams and third-party suppliers to protect long-term platform integrity.

Person Requirements

• Proven experience as a Solution Architect and/or Enterprise Architect on major system replacement or modernisation programmes.
• Strong technical solutions architecture experience, including cloud solutions (azure), event-driven design, event buses, integration patterns, APIs, and enterprise service bus environments.
• Experience owning architecture across complex operational estates and multiple internal and third-party systems.
• Strong understanding of data architecture and modern data platforms, ideally including Databricks and Microsoft Fabric preferred.
• Experience providing technical assurance within vendor-led SaaS procurement and implementation programmes.
• Ability to compare current and future-state architectures, identify gaps and dependencies, and create pragmatic transition roadmaps.
• Confident challenging vendor designs and representing internal technology interests with senior stakeholders and suppliers.

Finer details

Contract length: 6 months

IR35 status: Outside IR35

Rate: £625 per day (possibly some flex)

Interviews taking place w/c 24th August.