IT Infrastructure and Security Lead

Zentso builds and operates CloudToolz, a revenue-critical SaaS platform layered on top of iMIS RiSE association management software, serving clients across the UK, Europe, United States, and Asia Pacific. The platform encompasses workflow automation, form building, CRM, CMS, and payment processing capabilities delivered to organisations in multiple sectors.

We are seeking an experienced IT Infrastructure and Security Lead to own the global infrastructure and security posture underpinning CloudToolz and Zentso's internal systems. This is a senior individual-contributor role with direct access to and collaboration with the CTO on architecture, security strategy, and capacity planning. The successful candidate will be comfortable operating independently across a distributed, multi-region environment and taking ownership of uptime, security, and compliance outcomes for a production platform.

A key part of this role is leading Zentso's transition toward a containerise...