About ActAI There are over 5 billion users using basic applications today such email, notes, tasks, calendar and they're not AI-native. Our mission is to build proactive applications for anyone in the world, who are not used to complex prompting. We aim to bring intelligence to conversations, errands, organising and workflows, with minimal to no prompting. Our first application is an agent-first mobile communication app. We believe building applications that users use daily for communication, coordination and collaboration needs will help integrate AI into their lives. The net effect is to eliminate misinformation, achieve low coordination costs, enable high quality tasks and collaboration at scale with minimal or little prompting. About the Role The CTO will own technology strategy, architecture and engineering standards across the Group. This is a technical leadership role for someone who can operate across multiple businesses while remaining close to systems, architecture and engineering execution. What you will be doing • Own architecture and major technical decisions across group products and platforms. • Review critical systems, architecture, infrastructure and code directly. • Set engineering standards across reliability, security, performance, testing and code quality. • Identify technical debt and architecture constraints and drive their resolution. • Improve engineering productivity, development speed and production reliability. • Decide where technology and infrastructure should be shared across Group businesses. • Recruit and assess senior engineers, technical leads and engineering leaders. What you will need • Deep software engineering background with experience building and scaling production systems. • Strong knowledge of backend systems, APIs, databases, cloud infrastructure and distributed systems. • Experience making architecture decisions across multiple products or engineering teams. • Strong technical judgement and ability to challenge engineering decisions at implementation level. • Capable of building world-class engineering teams. • Still technically hands-on - able to review code, architecture, incidents and difficult engineering problems directly.