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# senior integration engineer (ui/ux/orchestration).

- **Company:** Randstad UK
- **Location:** London, United Kingdom
- **Experience:** Expert
- **Salary:** £104,000 - £124,800
- **Contract:** Permanent contract
- **Skills:** Microsoft Windows, Application Programming Interfaces (APIs), Artificial Intelligence, Audit Trail, Continuous Integration, Design of User Interfaces, Open Data Protocol, E2e Testing, Azure Active Directory, SAP (Applications), Sendmail, Systems Integration, Enterprise Software Applications, SAP BAPI, Event Driven Architecture, Microsoft Copilot Studio, Enterprise Integration, Apache Kafka
- **Published:** November 4, 2026
- **Apply:** https://www.randstad.co.uk/jobs/senior-integration-engineer-uiuxorchestration_london_47701070/

## About the Role

* Technical Expertise: 6+ years in back-end/integration engineering using Go (or similar typed languages), with deep experience in event-driven architectures, Google Pub/Sub (or Cloud Run), and Microsoft Entra ID (workload identity federation, app registrations).
 * M365 & Bot Integration: Hands-on production experience with Teams app manifests, proactive messaging, conversation references, Adaptive Cards, Power Platform/Dataverse, and Microsoft Graph APIs (sendMail, throttling, retries).
 * Enterprise Systems: Proven track record integrating with SAP (OData, RFC/BAPI, or BTP) and/or Kafka using a schema registry.

## Description

Overview: We are looking for an experienced Senior Integration Engineer to lead the end-to-end integration architecture for an enterprise AI companion ecosystem. Operating across Microsoft 365, messaging brokers, and core ERP systems, you will build scalable back-end connections, automate Teams app deployments, and establish robust event-driven pipelines bridging end-user touchpoints with critical enterprise infrastructure., * Microsoft 365 & Teams Orchestration: Architect and own the integration between back-end services and Teams/Copilot Studio; build a pacing service to throttle message bursts, design dynamic Adaptive Cards with approval actions, and establish CI/CD deployment pipelines via app setup policies.

 * Enterprise Messaging & Notifications: Extend the centralized Microsoft Graph email service (managing rate limits, branded templates, and audit logs) and manage reliable proactive bot messaging with delivery receipts.
 * System Integration & Resilience: Build unified, reusable SAP connectors, implement shared resilience libraries (retries, backoff, circuit breakers), and extend event-driven pipelines across Kafka and Google Pub/Sub with schema validation and dead-letter queues.