Senior Software Engineer, Mobile

Ready to be a Titan? We're building the next generation of ServiceTitan's iOS mobile applications—designed to deliver unmatched performance, elegant design, and powerful capabilities for the field technicians who depend on them every day. As a Senior Software Engineer, iOS, you'll be at the forefront of this effort: shaping technical direction, solving complex problems, and using the full power of Apple's ecosystem to create key product differentiators. This is more than coding. You'll be driving architecture decisions, mentoring engineers, and leveraging AI tools to streamline workflows, improve performance, and deliver experiences that make a real difference for our customers in the trades. What You'll Do Lead development of high-performance, native iOS applications using Swift. Architect and design scalable mobile frameworks and features that serve thousands of field technicians daily. Collaborate closely with product managers, designers, and backend engineers to deliver high-impact, business-critical solutions. Integrate GraphQL to efficiently connect mobile clients with backend services. Apply deep expertise in The Composable Architecture (TCA)—including shared state management and performance optimization—to build robust, maintainable iOS applications. Leverage AI-assisted development tools (Claude, GitHub Copilot, Cursor, Windsurf, and others) to accelerate development speed and improve code quality. Mentor and guide other engineers, fostering a culture of technical excellence and continuous learning. Champion best practices in code quality, performance optimization, and app architecture. What You'll Bring Bachelor's degree in Computer Science or a related field—or equivalent practical experience. 6+ years of mobile application development experience with a deep focus on iOS. Expert-level proficiency in Swift. Proven experience architecting and designing mobile applications or frameworks at scale. Strong hands-on experience with GraphQL. Solid command of TCA, including shared state patterns and performance best practices. Excellent communication skills, both verbal and written. Preferred Qualifications Hands-on technical leadership experience setting direction for teams. Experience designing large-scale, distributed systems. Strong proficiency with SwiftUI. Nice to Have Familiarity with MVI architecture patterns. Experience with CI/CD tools such as Bitrise or GitHub Actions. Experience writing end-to-end automation tests. Why ServiceTitan Our mobile platform powers the businesses of plumbers, electricians, HVAC technicians, and other tradespeople across North America—people who run their entire operations from a phone in the field. The work you do here has immediate, tangible impact on how those businesses run. You'll work alongside engineers who take the craft seriously, move with purpose, and care about getting things right. We invest in modern tooling, encourage experimentation, and believe that mentorship and knowledge-sharing are core parts of the job—not afterthoughts. If you're excited about building high-impact mobile applications and want to shape the future of our mobile platform, we'd love to hear from you. Be Human With Us: Being human isn’t about checking every box on a list. It’s about the experiences we have, people we meet, and the perspectives we share. So, if you have the skills but are hesitant to apply because of your background, apply anyway. We need amazing people like you to help us challenge the conventional and think differently about the problems that we’re solving. We’re in this together. Come be human, with us. Use of AI Technology: We use technology, including automated and AI-assisted tools, to support certain aspects of our recruitment process. These tools are designed to improve efficiency and enhance the candidate experience. AI tools are not used to make hiring decisions; all hiring decisions are made by our hiring teams. What We Offer: When you join our team, you’re not just accepting ... (truncated, view full listing at source)