Senior Systems Integration Engineer | Hybrid London | 6-Month FTC Overview: An exciting opportunity has arisen with a purpose-driven organisation undergoing significant technology transformation. We are seeking a Senior Systems Integration Engineer to bring stability, connectivity, and technical leadership to a complex multi-platform environment. Reporting directly to the CEO, you will act as the organisation's trusted technical voice, connecting systems, improving data integrity, strengthening vendor accountability, and helping create a scalable technology foundation for future growth. This is a hands-on role suited to someone who enjoys solving technical challenges, working across multiple systems, and delivering practical integration solutions that have a direct impact on business operations. Role & Responsibilities: Design, build, test, and support integrations across Microsoft Dynamics CRM, Business Central, SaaS platforms, and other business systems. Develop and maintain API-based integrations, data pipelines, webhooks, and automated workflows. Troubleshoot integration issues, data discrepancies, and system connectivity challenges. Support platform upgrades, system enhancements, and data migration activities. Work closely with third-party suppliers and implementation partners to deliver technical solutions. Assist with improving data quality, system reliability, and operational efficiency. Document integration designs, technical processes, and recommendations. Collaborate with technical and non-technical stakeholders to understand requirements and deliver effective solutions.Skills & Experience Essential Strong experience in Systems Integration, Integration Engineering, Application Integration, or a similar technical role. Hands-on experience working with REST APIs, web services, ETL processes, webhooks, and system integrations. Strong troubleshooting and problem-solving skills. Experience working with third-party vendors and technology partners. Ability to communicate technical concepts clearly to a range of stakeholders.Desirable Experience with Microsoft Dynamics CRM and/or Microsoft Business Central. Experience delivering data migration, platform implementation, or system modernisation projects. Knowledge of integration platforms, workflow automation, and API management tools. Experience working across multiple business systems and third-party technology suppliers.Senior Systems Integration Engineer | Hybrid London | 6-Month FTC