Senior Integration Engineer

Domain Leadership (aligned to a retail banking domain)

• Forge trusted partnerships with senior business stakeholders to understand requirements and translate them into robust integration and workflow solutions
• Own high-level and detailed solution design for integrations, process flows, and system interconnections
• Set and enforce engineering standards, quality, governance, and best practices for workflow and integration development
• Provide hands-on coding and algorithmic guidance, including direct coding in Java, BPMN modelling, and integration logic (when required)

Platform Engineering Strategy Collaborate with fellow Principal Engineers and cross-functional teams to:

• Define engineering goals, roadmaps, metrics, and success criteria for the workflow migration and integration layers
• Shape target architecture and drive platform evolution, with a strong focus on the IBM BPM - Camunda transition and PCF - AWS migration
• Build colleague skills programmes and future capability plans, particularly around modern BPMN practices, Camunda tooling, and integration patterns
• Lead enhancements to engineering tooling, CI/CD pipelines, monitoring, and ways of working for workflow and integration delivery

Additional Core Duties & Responsibilities

• Lead the design, development, and optimisation of integrations between Camunda workflows, Java Spring Boot microservices, external APIs, databases, and Legacy systems
• Model, implement, and refactor business processes in BPMN 2.0 using Camunda Modeler (and support migration from IBM Process Designer exports)
• Handle complex integration patterns: message/event-driven flows, error handling/retry mechanisms, compensation logic, human tasks, external tasks, and decision tables (DMN where applicable)
• Drive the end-to-end IBM BPM - Camunda migration: analyse existing processes, map IBM extensions to Camunda equivalents, develop migration scripts/tools, and ensure minimal disruption to live onboarding journeys
• Ensure high-performance, scalable, and resilient integrations at platform scale (~7,000 daily transactions), including performance tuning, load testing, and monitoring
• Collaborate on automated testing (unit, integration, end-to-end), deployment strategies, and rollback plans for workflow changes
• Contribute to troubleshooting, incident resolution, and continuous improvement of the onboarding experience during and post-migration

This is a hands-on, high-impact role at the heart of a critical migration in a regulated, high-volume banking environment. Ideal for someone with deep IBM BPM expertise looking to lead a transition to modern Camunda.

Backend: Java Spring Boot microservices

• Workflow Engine: IBM BPM - migrating to Camunda
• Infrastructure: PCF - migrating to AWS

Our client, one of the UK's largest banks, is seeking a highly skilled Senior Integration Developer/Lead Developer for their Strategic Account Opening (SAO) platform - one of the UK's highest-scale digital onboarding systems. In this role, you will play a pivotal part in shaping technical strategy, driving engineering excellence, and delivering a reliable, high-volume customer onboarding experience. The SAO platform powers product openings for both new-to-bank and existing customers across retail banking (current accounts, savings, overdrafts, loans, credit cards), processing ~7,000 products per day (~2-2.5 million annually).