Salary: £75,000 - 85,000 per year Requirements: Solution Architecture experience with a focus on E-commerce platforms or API/Middleware ecosystems. Expert-level knowledge of Node.js, Java (Spring Boot), and PostgreSQL with the ability to critique vendor code. Deep proficiency in API management patterns, Webhook integrations, and Event-Driven Architecture using Kafka or Azure Event Hubs. Demonstrable experience migrating legacy monolithic systems into containerised microservices architectures. Proficient in Visio or LucidChart for architectural modelling and disciplined in Confluence for documentation practices. Responsibilities: Develop high-quality High-Level Designs (HLDs) and Low-Level Designs (LLDs) for DTS, EPOS, and other strategic workstreams. Conduct structured audits of vendor-submitted code and architecture, enforcing the Stable-by-Design framework. Orchestrate complex data mapping between legacy IBM iSeries (DB2/RPG) systems and modern API middleware. Lead investigations into recurring platform failures and deliver long-term structural remediation. Maintain high-quality architecture documentation in Confluence, ensuring it is versioned and accessible to operational teams. Technologies: API Architect Azure Confluence IBM Java Kafka PostgreSQL Spring Spring Boot microservices NodeJS Cloud Security More: We are a well-established and diversified multinational organization located in Wembley, London. We offer a competitive salary of up to £85,000 per annum and require our Solutions Architect to work on-site five days a week. You will be joining a passionate team dedicated to creating innovative technology solutions. last updated 18 week of 2026