Solution Architect (Billing Platform Project) Rate - 700 (A day)Duration - 3 Months (Initially)Location - London (Hybrid)Ir35 - Inside (Must use an umbrella company) Role PurposeWe are seeking a Solution Architect to lead the design and evolution of our billing solution. This role is pivotal in shaping the future-state architecture, simplifying integration, and enabling business-led configuration. The architect will work closely with business stakeholders, project teams, and technical delivery to ensure a scalable, maintainable, and user-friendly solution.Key ResponsibilitiesUnderstand and document the current ("as-is") architecture, data flows, and integration points across D365, Workday, and supporting systems.Collaborate with project teams to define the desired outcomes and shape the solution vision aligned with business goals.Create a Solution Vision Document describing the options and recommendations to achieve the desired outcome.Develop high-level designs that reflect the target ("to-be") architecture, ensuring alignment with enterprise standards.Collaborate with technical delivery teams to create and validate Low Level Designs.Assess and recommend technologies that support business rule management in line with architectural principles.Act as the architectural liaison between business users, delivery teams, and platform owners.Ensure architectural decisions support security, compliance, and operational efficiency.Key Technologies and Platforms (existing)Core Systems: M