Staff Mobile Engineer (iOS or Android) - VC Backed Startups

Join SignalFire’s Talent Network for Staff Mobile Engineer Roles at VC-Backed Startups

At SignalFire , we partner with top early-stage startups that are shaping the future of technology. Our portfolio spans 200+ innovative companies across AI, cybersecurity, healthtech, fintech, developer tools, and enterprise SaaS.

We’re looking to connect with exceptional Staff Mobile Engineers who are excited about leading mobile development efforts and scaling applications across iOS, Android, and cross-platform environments . By joining SignalFire’s Talent Network, your profile will be shared with our portfolio companies, giving you visibility into exclusive early-stage opportunities that may not be publicly listed.

💡 This is not an application for a specific job. Instead, this is a way to get on the radar of VC-backed startups that are actively hiring AI / ML talent. If you have any questions, please direct inquiries to talentnetwork@signalfire.com.

Who Should Join?

We’re looking for engineers who are :

• Passionate about building and optimizing mobile applications for scalability, performance, and user experience
• Experienced in leading mobile projects, mentoring engineers, and defining technical roadmaps
• Excited about native (Swift / Kotlin) and cross-platform (React Native, Flutter) development

Typical Roles & Responsibilities

Architect, design, and develop scalable, high-performance mobile applications

Own and optimize mobile performance, security, and reliability

Lead efforts in mobile API integrations, cloud storage solutions, and data synchronization

Work with backend teams to create efficient REST, GraphQL, and WebSocket APIs

Guide and mentor junior engineers, establishing best practices for mobile development

Define and maintain mobile CI / CD pipelines, testing strategies, and release processes

Research and integrate emerging mobile technologies to keep applications cutting-edge

Common Qualifications

While each startup has its own hiring criteria, many staff mobile engineering roles in our network look for :

6+ years of experience in mobile development for iOS and / or Android

Deep expertise in Swift (iOS) and / or Kotlin (Android) for native app development

Experience with cross-platform frameworks like React Native, Flutter, or MAUI

Strong knowledge of mobile UI / UX principles, animations, and accessibility

Familiarity with state management libraries (Jetpack Compose, SwiftUI, Redux, MobX)

Hands-on experience integrating cloud services (Firebase, AWS, GCP) and local databases (Core Data, Room, Realm, SQLite)

Proficiency in mobile security best practices , authentication (OAuth, JWT), and encryption techniques

Strong understanding of automated testing frameworks (XCTest, Espresso, Detox, Cypress)

Experience with CI / CD pipelines and mobile deployment tools (Fastlane, Bitrise, App Store Connect, Google Play Console)

Proven leadership in technical strategy, architecture, and mentoring engineers

💡 Technologies You Might Work With :

Native Development : Swift (iOS), Kotlin (Android), Objective-C, Java

Cross-Platform Development : React Native, Flutter, MAUI, Xamarin

UI & State Management : Jetpack Compose (Android), SwiftUI (iOS), Redux, MobX, Provider

Networking & APIs : REST, GraphQL, WebSockets, Firebase Firestore, Apollo Client

Database & Storage : SQLite, Core Data, Room, Realm, Firebase Realtime Database

Cloud & DevOps : AWS Amplify, Firebase, GCP, Azure, Docker, Kubernetes, Fastlane

Testing & CI / CD : XCTest, Espresso, Jest, Cypress, Detox, GitHub Actions, Bitrise, Jenkins

Other Tools : App Store Connect, Google Play Console, Firebase Crashlytics, Sentry

What Happens Next?

Submit your application to join SignalFire’s Talent Ecosystem.

We review applications on an ongoing basis to identify strong candidates.

If there’s a match, a SignalFire talent partner or a leader from one of our startups may reach out directly.

No match yet? We’ll keep your profile on file for future mobile engineering roles in our portfolio.

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