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Role Description

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.

Qualifications

• 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.

Requirements

• Hands-on technical leadership experience setting direction for teams.
• Experience designing large-scale, distributed systems.
• Strong proficiency with SwiftUI.

Benefits

• Flexible time off with ample learning and development opportunities to continue growing your career.
• Comprehensive onboarding program, leadership training for Titans at all levels, and other programs and events.
• Company-paid medical, dental, and vision (with 100% employer paid options and 90% coverage for dependents).
• FSA and HSA, 401k match, and telehealth options including memberships to One Medical.
• Parental leave and support, up to $20k in fertility services (i.e. IUI and IVF), surrogacy, and adoption reimbursement.
• On-demand maternity support through Maven Maternity, free breast milk shipping through Maven Milk, pet insurance, legal advisory services, financial planning tools, and more.