Java​/Node.Js Solutions Architect

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 a Solutions Architect to join their team.

• 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 Postgre
  
  SQL - 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 Lucid Chart for architectural modelling; disciplined in Confluence for documentation practices.

• Blueprint Delivery: Develop high‑quality High‑Level Designs (HLDs) and Low‑Level Designs (LLDs) for DTS, EPOS, and other strategic work streams - 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.