Senior Integration Architect

Salary: £? - ? per year Requirements: • Extensive experience in enterprise integration architecture and delivery within large-scale transformation or migration programmes. • Strong expertise in API design, REST services, OpenAPI specifications, and modern integration patterns. • Experience designing and implementing service-based and distributed architectures. • Working knowledge of enterprise integration platforms such as SAP Integration Suite, API Management platforms, or similar technologies. • Experience delivering integration migration or modernisation programmes. • Strong understanding of modern software engineering practices, including CI/CD pipelines, automated testing, and observability. • Experience working across multiple delivery teams and contributing to broader architectural strategy and governance. • Excellent stakeholder management and communication skills, with the ability to engage both technical and non-technical audiences. • Experience within central government or wider public sector environments. • Exposure to large-scale ERP transformation programmes. • Experience supporting cloud-based integration strategies and platform modernisation initiatives. • Knowledge of AI-assisted delivery approaches, including code analysis, automation, and documentation generation. • Familiarity with strategic integration platforms and API management solutions Responsibilities: • Design and deliver integration solutions, migrating services from legacy platforms to modern strategic integration platforms. • Define API specifications and integration patterns, including the transformation of legacy SOAP services into modern RESTful APIs. • Apply API-first and domain-driven integration approaches to support reuse, resilience, and long-term maintainability. • Contribute to end-to-end solution design, ensuring alignment with wider enterprise architecture principles and transformation objectives. • Promote modern engineering practices including automated testing, CI/CD, shift-left delivery, and automation. • Support the identification and management of technical risks, dependencies, and migration planning activities. • Collaborate closely with engineering teams, product owners, business stakeholders, and SMEs to ensure successful delivery. • Contribute to architecture governance, technical documentation, and design assurance activities. Technologies: • AI • API • Architect • CI/CD • Cloud • ERP • Support • OpenAPI • REST • SAP • SOAP More: We are supporting a major public sector transformation programme focused on modernising and simplifying a large-scale enterprise integration landscape. This multi-year initiative is driving the migration from legacy technologies to strategic platforms, enabling the successful transition to modern cloud-based architecture and supporting wider digital transformation objectives. As a Senior Integration Architect, you will play a key role in designing and delivering integration solutions within a large-scale migration programme. Working closely with architecture, engineering, and product teams, you will help shape the future integration strategy while ensuring high-quality, scalable, and maintainable solutions are delivered across the programme. The role is remote with occasional ad hoc travel to client sites as required, on an initial 6-month contract with strong extension potential, at a rate of up to £700 per day inside IR35. BPSS is required. last updated 38 week of 2026