Sandboxx
Senior iOS Engineer
Sandboxx is the leading platform dedicated to finding and building technology solutions throughout a service member's military life cycle. We're looking for people with drive and initiative who are excited about making great technology and a positive attitude for our service members. Come help us build meaningful solutions for the military community! Senior iOS Engineer (AI-Accelerated)
Location: Middleburg, VA Type: Full-time Sandboxx is seeking a Senior iOS Engineer who thrives in product-focused teams and is passionate about delivering seamless, secure, and delightful mobile experiences. You'll lead the development of our iOS app used by thousands of military families, service members, and veteransand help shape how we incorporate AI to accelerate our engineering workflow and user experience. We're a mission-driven team building products that matter. If you're motivated by purposeful work, enjoy end-to-end ownership, and have experience leveraging AI coding tools to move faster and build smarter, this role is for you. What You'll Do
Build and enhance our flagship iOS app using Swift and modern frameworks like SwiftUI and Combine. Collaborate with design and product teams to turn high-fidelity designs into elegant, performant UI on iPhone and iPad. Integrate AI-powered features that support personalization, messaging intelligence, and in-app guidance using tools like CoreML, Firebase ML, or ChatGPT APIs. Use AI-assisted development tools (e.g., GitHub Copilot, Xcode Suggestions) to boost velocity and maintain high-quality standards. Ensure smooth integration with backend APIs (GraphQL, REST), and work closely with backend engineers on contract definition and data flow. Maintain and improve CI/CD pipelines for automated builds, testing, and deployment using tools like Xcode Cloud, Fastlane, and GitHub Actions. Monitor crash reports, performance metrics, and customer feedback to continuously iterate and improve the app. Participate in code reviews, technical planning, and mentoring to elevate the quality and consistency of our iOS codebase. About You
5+ years of experience building iOS applications in Swift at scale; strong portfolio of apps in the App Store is a plus. Proficiency in SwiftUI, UIKit, and Combine (or experience with RxSwift and transitioning to Combine). Experience working in a modular iOS architecture with separation of concerns (MVC, MVVM, VIPER, or Clean Architecture). Hands-on experience with AI-assisted developer tools in your workflow. Comfortable implementing offline-first features, background tasks, and optimizing app startup and runtime performance. Solid understanding of mobile security, privacy best practices, and Apple's App Store guidelines. Familiarity with Core Data, Push Notifications, Firebase, and Analytics frameworks. Experience with snapshot/UI/unit testing frameworks like XCTest, Quick/Nimble, or XCUITest. Excellent communication skills, thrives in remote-first teams, and takes ownership from idea to execution. Bonus: Experience working with watchOS, widgets, or other Apple platforms. Tech Stack
Languages & Frameworks: Swift, SwiftUI, UIKit, Combine, CoreData Architecture: MVVM, Clean Architecture, Protocol-Oriented Design Networking: URLSession, Alamofire, Apollo GraphQL AI & ML: CoreML, Firebase ML, OpenAI (ChatGPT), CreateML, Vision Testing: XCTest, XCUITest, Quick/Nimble CI/CD: Fastlane, GitHub Actions, Xcode Cloud Crash & Performance Monitoring: Firebase Crashlytics, Xcode Instruments, MetricKit Tooling: GitHub Copilot, Xcode Previews, SwiftLint, Sourcery 3rd Party Libraries: SnapKit, Lottie, Kingfisher, SwiftyJSON (when needed) Interview Process
Application Review
Assessed by our hiring manager. CTO Chat
30-minute intro focused on team fit and values. Technical Deep Dive
1-hour discussion with our Lead iOS Engineer. In-depth Coding Session
A 4-hour real-world programming exercise focused on architectural thinking, clean code, and testing. Done in a collaborative format. Virtual Panel Interview
2 hours with team stakeholders. Includes a real-world iOS coding exercise (we'll share context beforehand). Offer Stage
If it's a match, we move fast. Benefits & Perks
Competitive salary + equity options 100% company-paid health, dental, and vision (employee-only plans) 401(k) with company match Unlimited PTO + 11 company holidays + year-end holiday break 12 weeks paid parental leave for all parents $1,500/year learning & development budget $1,000/year wellness stipend Mission-driven team, startup autonomy, and the opportunity to improve lives in the military community At Sandboxx, we believe technology should serve peoplenot replace them. Come help us shape the future of how service members stay connected, informed, and empoweredwhile building with the tools of tomorrow.
Sandboxx is the leading platform dedicated to finding and building technology solutions throughout a service member's military life cycle. We're looking for people with drive and initiative who are excited about making great technology and a positive attitude for our service members. Come help us build meaningful solutions for the military community! Senior iOS Engineer (AI-Accelerated)
Location: Middleburg, VA Type: Full-time Sandboxx is seeking a Senior iOS Engineer who thrives in product-focused teams and is passionate about delivering seamless, secure, and delightful mobile experiences. You'll lead the development of our iOS app used by thousands of military families, service members, and veteransand help shape how we incorporate AI to accelerate our engineering workflow and user experience. We're a mission-driven team building products that matter. If you're motivated by purposeful work, enjoy end-to-end ownership, and have experience leveraging AI coding tools to move faster and build smarter, this role is for you. What You'll Do
Build and enhance our flagship iOS app using Swift and modern frameworks like SwiftUI and Combine. Collaborate with design and product teams to turn high-fidelity designs into elegant, performant UI on iPhone and iPad. Integrate AI-powered features that support personalization, messaging intelligence, and in-app guidance using tools like CoreML, Firebase ML, or ChatGPT APIs. Use AI-assisted development tools (e.g., GitHub Copilot, Xcode Suggestions) to boost velocity and maintain high-quality standards. Ensure smooth integration with backend APIs (GraphQL, REST), and work closely with backend engineers on contract definition and data flow. Maintain and improve CI/CD pipelines for automated builds, testing, and deployment using tools like Xcode Cloud, Fastlane, and GitHub Actions. Monitor crash reports, performance metrics, and customer feedback to continuously iterate and improve the app. Participate in code reviews, technical planning, and mentoring to elevate the quality and consistency of our iOS codebase. About You
5+ years of experience building iOS applications in Swift at scale; strong portfolio of apps in the App Store is a plus. Proficiency in SwiftUI, UIKit, and Combine (or experience with RxSwift and transitioning to Combine). Experience working in a modular iOS architecture with separation of concerns (MVC, MVVM, VIPER, or Clean Architecture). Hands-on experience with AI-assisted developer tools in your workflow. Comfortable implementing offline-first features, background tasks, and optimizing app startup and runtime performance. Solid understanding of mobile security, privacy best practices, and Apple's App Store guidelines. Familiarity with Core Data, Push Notifications, Firebase, and Analytics frameworks. Experience with snapshot/UI/unit testing frameworks like XCTest, Quick/Nimble, or XCUITest. Excellent communication skills, thrives in remote-first teams, and takes ownership from idea to execution. Bonus: Experience working with watchOS, widgets, or other Apple platforms. Tech Stack
Languages & Frameworks: Swift, SwiftUI, UIKit, Combine, CoreData Architecture: MVVM, Clean Architecture, Protocol-Oriented Design Networking: URLSession, Alamofire, Apollo GraphQL AI & ML: CoreML, Firebase ML, OpenAI (ChatGPT), CreateML, Vision Testing: XCTest, XCUITest, Quick/Nimble CI/CD: Fastlane, GitHub Actions, Xcode Cloud Crash & Performance Monitoring: Firebase Crashlytics, Xcode Instruments, MetricKit Tooling: GitHub Copilot, Xcode Previews, SwiftLint, Sourcery 3rd Party Libraries: SnapKit, Lottie, Kingfisher, SwiftyJSON (when needed) Interview Process
Application Review
Assessed by our hiring manager. CTO Chat
30-minute intro focused on team fit and values. Technical Deep Dive
1-hour discussion with our Lead iOS Engineer. In-depth Coding Session
A 4-hour real-world programming exercise focused on architectural thinking, clean code, and testing. Done in a collaborative format. Virtual Panel Interview
2 hours with team stakeholders. Includes a real-world iOS coding exercise (we'll share context beforehand). Offer Stage
If it's a match, we move fast. Benefits & Perks
Competitive salary + equity options 100% company-paid health, dental, and vision (employee-only plans) 401(k) with company match Unlimited PTO + 11 company holidays + year-end holiday break 12 weeks paid parental leave for all parents $1,500/year learning & development budget $1,000/year wellness stipend Mission-driven team, startup autonomy, and the opportunity to improve lives in the military community At Sandboxx, we believe technology should serve peoplenot replace them. Come help us shape the future of how service members stay connected, informed, and empoweredwhile building with the tools of tomorrow.