Full-Stack Software Engineer, Mobile Apps

Hiya is a company that's making calls safe, useful, and human again. They're looking for a Full-Stack Software Engineer to own features end-to-end, working across the TypeScript/Node backend, iOS app, Android app, and more. The ideal candidate will have experience with agentic workflow, context engineering, and multi-model routing, with a strong opinion about how logic should live in different parts of the stack.

Requirements

• Hold a piece of work from contract through rollout across multiple surfaces
• Deliver the whole feature, not just hand off parts that aren't your home surface
• Define and defend an API contract with mobile and design before writing the feature behind it
• Develop a point of view on how the team's agentic workflow is serving you
• Have opinions about where logic should live in different parts of the stack

Benefits

• 25 holiday plus bank holidays
• Opt in salary sacrifice pension scheme
• Paid parental leave
• Private medical insurance
• Employer-paid life insurance
• Donation Matching
• WFH equipment stipend
• Professional Development funds
• Lunch provided on in-office days