Principal Software Engineer, Mobile

ServiceTitan; United States; On-site; USD 180,000 - 280,000; Full time

Benefits offered by this job

Flextime

Onboarding program

Leadership training

Bonusly

Employer-paid health benefits

Job summary

ServiceTitan is seeking a Principal Software Engineer to set the technical direction for our mobile platform across iOS and Android. You will own the vision end-to-end, design critical systems, and drive architecture decisions to scale our mobile apps for technicians and business owners in the field.

You will mentor engineers, build tools to increase efficiency, collaborate with cross-functional teams, and contribute to the mobile roadmap and release processes.

Qualifications

• 15+ years of industry experience in mobile applications.
• 10+ years in senior engineering roles, designing APIs and tools.
• Expert-level native iOS (Swift, UIKit/SwiftUI) and/or native Android (Kotlin) knowledge.

Responsibilities

• Own the short- and long-term technical vision for the mobile platform.
• Design, build, and improve critical mobile systems for iOS and Android.
• Improve efficiency by building tools and automation for mobile engineers.
• Identify opportunities to share reusable systems across teams.
• Mentor and guide engineers across the mobile organization.

Skills

Mobile architecture

Leadership

APIs design

Performance optimization

Mentoring

Cross-functional collaboration

Software engineering

Education

Bachelor/Master/PhD in CS or Engineering

Tools

Firebase Crashlytics

Datadog

New Relic

Application Insights

Fastlane

Bitrise

GitHub Actions

TeamCity

Job description

Principal Software Engineer, Mobile

ServiceTitan is the operating system for the trades. Our mobile platform puts that operating system in the hands of technicians and business owners in the field, and it has to work flawlessly, at scale, every time. We're looking for a Principal Software Engineer to set the technical direction for that platform - across iOS and Android - and raise the bar for how our mobile engineers build, ship, and scale software.

What you'll do

• Own: Own the short- and long-term technical vision for the mobile platform, end to end.
• Design and revamp: Design, build, and improve the critical systems powering ServiceTitan's iOS and Android apps. Improve the security, availability, reliability, and performance of our mobile products. Drive and participate in major architectural and strategic decisions, especially those related to scale.
• Improve efficiency: Build tools and systems that increase the efficiency of every mobile engineer. Improve performance, processes, and quality across the mobile organization.
• Discover: Identify opportunities to extract or build shared systems that benefit multiple mobile teams.
• Empower: Mentor and guide engineers across the mobile organization and beyond.
• 60% development, 40% everything else.
• Team building: Partner with Recruiting on interviewing candidates and co-own lead generation (tech talks) and screening.
• Strategy: Contribute to the mobile roadmap and resource planning.
• Measure success: Define metrics for success and track them consistently.
• Collaborate: Communicate clearly with cross-functional partners - engineers, product managers, customers, and other stakeholders.

What you'll need

• 15+ years of industry experience, including building large-scale, consumer or enterprise mobile applications.
• 10+ years in senior engineering roles, designing APIs, abstractions, and tools used by other engineers.
• Expert-level knowledge of native iOS development (Swift, UIKit/SwiftUI, Xcode) and/or native Android development (Kotlin, Jetpack, Android Studio) - deep expertise in one platform with strong working knowledge of the other.
• Proven experience architecting mobile apps for scale: modularization, offline-first design, dependency injection, and clean separation of concerns.
• Experience taking existing mobile codebases from monolithic to modular, domain-based architectures.
• Strong background in mobile performance engineering - app startup time, memory and battery efficiency, rendering performance, and crash-free rates.
• Experience with mobile observability and monitoring tools (for example, Firebase Crashlytics, Datadog, New Relic, or Application Insights).
• Experience with mobile CI/CD pipelines and release automation (for example, Fastlane, Bitrise, GitHub Actions, or TeamCity).
• Deep familiarity with version control, unit and UI testing, debugging, and profiling tools standard to mobile development.
• Experience integrating large-scale third-party SDKs and APIs into mobile apps.
• Working knowledge of cloud infrastructure supporting mobile backends (Azure, AWS, or similar).
• Ability to empathize with our users and champion their experience.
• Strong communication and technical writing skills.
• B.S., M.S., or Ph.D. in Computer Science, Engineering, or a related technical field.

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:

• Flextime, recognition, and support for autonomous work : Flexible time off with ample learning and development opportunities to continue growing your career. We offer a comprehensive onboarding program, leadership training for Titans at all levels, and other programs and events. Great work is rewarded through Bonusly, peer-nominated awards, and more.
• Holistic health and wellness benefits: Company-paid medical, dental, and vision (with 100% employer paid