Jason Zook is a Senior Native Accessibility Coach at T-Mobile, specializing in empowering engineering teams to build truly inclusive mobile experiences. With deep expertise in front-end development, user experience, and design collaboration, Jason helps teams move accessibility left in the process — from product planning and design handoffs to story acceptance criteria and implementation.

Jason’s work focuses on equipping developers with the tools, knowledge, and organizational support they need to ship accessible products, while also enabling product managers and designers to provide clear accessibility requirements and annotations that prevent guesswork and reduce last-minute rework. His practical, workflow-driven approach has helped teams integrate accessible success criteria into Agile processes so accessibility becomes measurable and achievable at every sprint.

A frequent speaker and advocate for inclusive developer practices, Jason brings together technical precision and human-centered design thinking that helps teams deliver software that works for everyone.