Java / Node.js Solutions Architect - London, Wembley

Solutions Architect - London

Job Title: Solutions Architect
Salary: Paying up to £85,000 per annum

Location: Wembley London - 5 days on-site

Are you a hands-on technical leader with a passion for creating innovative technology solutions? Our client, a well-established and diversified multinational organisation, is seeking aSolutions Architect to join their team.

Skills

• Experience:Solution Architecture with a clear focus on E-commerce platforms or API/Middleware ecosystems.
• Technical Stack:Expert-level knowledge of Node.js, Java (Spring Boot), and PostgreSQL - able to read and critique vendor code, not just high-level diagrams.
• Integration Expert:Deep proficiency in API management patterns, Webhook integrations, and Event-Driven Architecture using Kafka or Azure Event Hubs.
• Legacy-to-Cloud:Demonstrable experience migrating legacy monolithic systems into containerised microservices architectures.
• Tooling:Proficient in Visio or LucidChart for architectural modelling; disciplined in Confluence for documentation practices.

Duties

• Blueprint Delivery:Develop high-quality High-Level Designs (HLDs) and Low-Level Designs (LLDs) for DTS, EPOS, and other strategic workstreams - to a standard that external vendors are contractually required to match.
• Vendor Governance:Conduct structured audits of vendor-submitted code and architecture. Enforce 'Stable-by-Design' framework, ensuring external deliverables meet internal quality, security, and scalability thresholds.
• Data Integration Leadership:Orchestrate complex data mapping between legacy IBM iSeries (DB2/RPG) systems and modern API middleware - a technically demanding challenge requiring deep integration expertise.
• Systemic Remediation:Lead deep-dive investigations into recurring platform failures error surges, latency anomalies, and data inconsistencies - and deliver long-term structural remediation, not tactical patches.
• Technical Documentation:Maintain high-quality architecture documentation in Confluence, ensuring designs are versioned, accessible, and transferable to operational teams.