Chief Technology Officer/Founding Engineer

Syntony works on AI evaluation, safety, and governance. We’re hiring a CTO to lead engineering and build software that helps organizations test AI systems, understand their risks, and act on the findings.You’ll work directly with the founder to shape product priorities and take responsibility for technical direction and delivery. This is a hands-on role: you’ll design systems, write and review code, and help select and guide engineers and contractors.ResponsibilitiesSet engineering priorities with the founder, translating research and client requirements into clear product milestones.Design and build our AI evaluation and governance products, including GovTune AI and Resonance.Make architecture decisions across product interfaces, APIs, evaluation tools, and data systems.Establish practical standards for code review, testing, deployment, security, and documentation.Help select and guide engineers and contractors, review their work, and keep delivery focused on agreed priorities.Work with researchers and users to ensure evaluation results are reliable, understandable, and useful in decisions.QualificationsExperience shipping and maintaining production software, with direct responsibility for architecture and technical decisions.Experience leading engineers or technical projects while continuing to contribute code.Strong backend and data engineering skills, with a working understanding of product development and deployment.Sound judgment about reliability, access controls, security, and the tradeoffs involved in building a small product team.Clear communication with researchers, clients, and colleagues from different disciplines.Experience with AI evaluation, agent systems, ML security, or governance software is useful. We value demonstrated work and technical judgment. A graduate degree is not required, but is highly encouraged.Compensation and scopeThis role offers equity-heavy compensation. The equity grant, vesting terms, any cash compensation, responsibilities, and expected time commitment will be discussed with the selected candidate and agreed in writing before work begins.The CTO will be responsible for technical direction and engineering delivery, working closely with the founder on product priorities.How to applyApply through our CTO application page. Tell us about the systems you’ve shipped, the technical decisions you’ve owned, and your interest in Syntony. Include links to relevant work where available.Questions? Contact ai.