Senior Solutions Architect (Consultant) - Transport Programme Contract | Hybrid London | 6 Months | £749/day Umbrella Overview A major UK transport organisation is seeking two experienced Solution Architects to support a large-scale ticketing and payments transformation programme. The role covers end-to-end solution architecture across discovery, design, budgeting, and delivery in a complex multi-vendor environment. Two roles available: Front Office: Ticketing devices and passenger systems (gates, TVMs, validators, smart ticketing hardware) Back Office: Payments and transaction processing systems (Visa/Mastercard integrations, backend platforms, on-prem infrastructure) Key Responsibilities Design and govern complex multi-vendor architectures Produce solution architecture and capability roadmaps Support technical budgeting (up to £40m+) Break down solutions into delivery work packages Ensure alignment with business capability and strategy Drive cost optimisation and TCO reduction Engage senior stakeholders and vendors Provide architecture assurance across delivery Essential Experience Enterprise / solution architecture in large-scale programmes Complex system design across multiple vendors Strong integration and architecture documentation skills Experience in either: Front Office: transport ticketing hardware (Cubic, S&B, INIT preferred) Back Office: payments, transaction processing, Java/.NET/Oracl...