Software Engineer, Mobile

About this role

Kalshi seeks an experienced Mobile Engineer to lead the development and scaling of its Flutter-based trading application. You'll own the full lifecycle of mobile features—from architecture and design through deployment—while collaborating with product teams to deliver high-quality user experiences in a fast-growing financial technology platform.

What you'll do

• Own development, quality, performance, and user experience of Kalshi's mobile application
• Design, build, test, and ship customer-facing mobile features end to end
• Build and maintain production-grade Flutter app with notifications and biometric authentication
• Make software architecture decisions supporting scalability and reliability
• Collaborate with product and design to translate business needs into technical solutions
• Mentor other mobile engineers as the team grows and establish engineering standards

What they're looking for

• Flutter development (5+ years production experience)
• Mobile platform features (push notifications, biometric auth, device integrations)
• Application architecture and state management
• API-driven systems and backend integration
• End-to-end ownership from design through deployment
• Technical fundamentals and code quality discipline
• Product-oriented mindset and collaboration
• React/React Native (bonus)

Benefits

• Base salary: $180,000–$250,000
• Opportunity to scale impact as company grows
• Meritocratic culture with deep ownership
• Work on pioneering prediction markets technology
• Collaborative environment with minimal hierarchy
• Located in New York office