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 Senior Mobile Engineers who are excited about building and scaling mobile 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 mobile engineering talent . If a company is interested in your background, they may reach out directly.
We’re looking for engineers who are:
✔ Passionate about building high-performance mobile applications on iOS and/or Android
✔ Excited about working with modern mobile frameworks and optimizing mobile experiences
✔ Experienced in native development (Swift, Kotlin) and/or cross-platform development (React Native, Flutter, etc.)
Design, develop, and maintain mobile applications for iOS, Android, or cross-platform solutions
Optimize performance, responsiveness, and security across mobile platforms
Build and maintain APIs, offline storage, and cloud integration for mobile applications
Work closely with UX/UI designers, backend teams, and product managers to create seamless experiences
Ensure applications follow best practices in mobile architecture, testing, and deployment
Implement automated testing, CI/CD pipelines, and monitoring solutions for mobile apps
Research and integrate new mobile technologies and frameworks to improve scalability and user experience
While each startup has its own hiring criteria, many senior mobile engineering roles in our network look for:
5+ years of experience in mobile application development for iOS and/or Android
Proficiency in Swift (iOS) and/or Kotlin (Android) for native development
Experience with cross-platform frameworks such as React Native, Flutter, or MAUI
Strong understanding of mobile UI/UX principles, animations, and accessibility best practices
Familiarity with REST APIs, GraphQL, WebSockets, and real-time data synchronization
Experience working with local storage (SQLite, Core Data, Room), cloud services (Firebase, AWS, GCP), and push notification frameworks
Proficiency in mobile app security practices , authentication (OAuth, JWT), and encryption techniques
Knowledge of CI/CD pipelines and mobile deployment tools (App Store Connect, Google Play Console, Fastlane)
Experience in early-stage startups or fast-paced product environments is a plus
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
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.
$160K – $220K • Offers Equity
Southwestern is seeking college students from all majors for a paid summer work/internship position. This is an outside sales internship where students will learn how to run their own business and be effective in creating relationships with consumers. Students will have...
...temporary). What you need to know: ~ Signup in seconds: Get started today and well provide support along the way. ~ Get paid fast: Cash out up to 5X a day with Ubers Instant Pay. ~ Guaranteed earnings: Earnings guaranteed for your first 128 trips with Uber....
...Parkview Health is actively recruiting a Fellowship Trained Pediatric Neurologist to join our Pediatric Subspecialty Team at our... ...and resources necessary to treat various pediatric neurological conditions that can lead to developmental delays Robust group...
...the successful execution of construction, land development, and environmental projects. Key Responsibilities: Conduct surveys to... ...collaborate effectively with multidisciplinary teams. Experience with GIS software is a plus. Detail-oriented with a high degree of...
.... Working 20 hours per week: either 2 or 3 days per week including all day on Fridays plus another 1 or 2 days rotating Monday through Thursday. (Flexibility for potential cross coverage needed for a weekend rotation monthly to the primary care clinic on the Longwood...