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‑Native Engineer (iOS + Android) — Camera Integration for Golf App description We are building Golf Coach Now, a mobile app for golf swing recording and analysis. We need a U.S.‑based mobile‑native engineer to finish and stabilize the camera integration on iOS and [login to view URL] (pure camera work only):iOS: AVFoundation camera Integration android: CameraX camera Integration open/close cameraFront/back camera toggleVideo recordingSave video locallyUpload recorded video to a backend URL (we provide the URL)Deliver iOS TestFlight buildDeliver Android Internal Testing buildImportant:No bug fixesNo analyzer logicNo file path fixesNo UI stylingNo backend changesThis is camera integration [login to view URL] iOS camera module integrated into the appWorking Android camera module integrated into the appVideo recording stable on both platformsUpload function wired to our backend URLTestFlight build linkAndroid Internal Testing build linkBudget & milestonesTotal: $400Milestone 1 — $200Initial camera setup on iOS + AndroidPermissions + basic recording working locallyMilestone 2 — $200Full camera integrationUpload wiredTestFlight + Android testing builds deliveredPayment released only after Golf Coach Now confirms acceptance RequirementsStrong experience with AVFoundation (iOS)Strong experience with CameraX (Android)Experience shipping TestFlight and Android Internal Testing builds Located in the United States Comfortable working with clear, binary acceptance Criteria
Project ID: 40691519
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103 freelancers are bidding on average $437 USD for this job

Hello, I am Dr. Rajesh Rolen, PhD in Computer Science & Engineering, with experience of over 20+ years in Android, iOS Development, Mobile App Development, Mobile Development, Software Testing, Objective C As a preferred freelancer in the top 1%, I have done 400+ projects here on freelancer.com, I have 4.9 ratings out of 5 on average, which showcases my quality of work and timely delivery. Key Highlights: - Free Hosting Support on the Cloud or any desired platform. - Free 3 months of post-delivery support to ensure that our client doesn’t face any challenges after the launch of the project. - Free Dedicated tester on projects to ensure quality delivery, so clients don’t need to act as a tester. - 10+ Years experience UI/UX team to ensure intuitive UI. Portfolio: https://www.freelancer.com/u/Microlent Please open the chat and send me a message, so we can have a more detailed discussion about the project to give you the project timeline and cost. Thank you for considering my services. I look forward to engaging in a productive conversation and understanding how I can be of assistance in bringing your project to life. Regards Rajesh Rolen
$500 USD in 10 days
9.4
9.4

Hi — Elias here from Miami. I see you're building a golf app and looking to integrate camera functionality. The goal is to enhance user experience through seamless video uploads and possibly live interactions. What usually matters most here is ensuring that the camera integration works smoothly across both iOS and Android platforms. A common issue in projects like this is managing different device capabilities and permissions while maintaining performance. The tricky part is usually ensuring that video uploads are efficient and that the user interface remains intuitive. My approach would involve creating a robust architecture that prioritizes maintainability and scalability. I would implement modular components that allow for future upgrades, such as added features or better compression algorithms. I've worked on similar mobile applications where camera integrations played a critical role, which taught me the importance of thorough testing and user feedback. A few questions to better understand the scope: Q1 – What specific camera features are you looking to implement? Q2 – Are there any specific user roles that will interact with the camera functionality? Q3 – How do you envision the video upload process working in terms of user experience? Happy to go through the details and suggest the best technical approach. Looking forward to hearing from you.
$500 USD in 5 days
8.3
8.3

Hi, The Golf Coach Now app requires a low-latency camera module on iOS and Android to capture and transmit golf swing videos. Operationally, this involves initializing the hardware camera surface, managing lens toggles, handling the active recording state, writing the video stream locally, and packaging that payload for an HTTP upload to your backend. Technical approach: - iOS: Implement AVCaptureSession via AVFoundation, managing the recording state machine. - Android: Utilize CameraX for lifecycle-aware camera binding and VideoCapture use cases. - Storage: Write outputs to temporary app-specific local directories. - CI/CD: Generate signed TestFlight and Android Internal Testing builds. Core modules: - Camera lifecycle manager (handles foreground/background transitions). - Hardware toggle controller (lens switching without session drops). - Network uploader (transmits local video files to the backend URL). Relevant systems: - SecureCom (Native Android and iOS media handling) - CoreWipe (Android hardware lifecycle management) Implementation strategy: I will start by wiring the raw camera previews and local recording capabilities on both platforms (Milestone 1). Once local capture is validated, Milestone 2 will focus on the network upload layer and generating the testing builds for your binary acceptance. Regards, Rohit
$250 USD in 7 days
8.1
8.1

As an experienced Full-Stack software engineer with over a decade in the industry, I believe I am the ideal candidate for your Golf Coach Now app project. I've got a stellar background and intimate knowledge of mobile app development processes for both Android and iOS platforms to complement your U.S.-based requirement. Throughout my career, I’ve developed a deep understanding and honed my skills working with various camera APIs like AVFoundation (iOS) and CameraX (Android). I'm also familiar with handling permissions, camera toggling, video recording, and local storage functionalities which align perfectly with the pure camera-centric requirements of your project. I've even handled features akin to yours in projects such as integrating GPS/Google Map APIs in some sports training apps. Moreover, proficiently sending TestFlight builds and Android Internal Testing builds is another one of my strong suits; one that can ensure smooth delivery of the completed milestones. My track record with completing projects within budget and on time gives me the utmost confidence that I'll deliver exactly what you need for Golf Coach Now. Ultimately, my dedication to producing quality work while maintaining effective communication will help us build a harmonious professional relationship focused on achieving your app's vision. Looking forward to discussing your project's specifications further so we can get started on optimizing users' golf swing training experiences!
$500 USD in 7 days
7.8
7.8

Golf Coach Now needs a focused native camera implementation, and I can handle the iOS AVFoundation and Android CameraX work without expanding into analyzer logic, UI styling, file-path changes, or backend modifications. I have 10+ years of mobile and full-stack experience, with native Swift/iOS and Android development included in my work. I’ll first review the existing camera entry points and app lifecycle, then configure permissions and reliable open/close behavior. On iOS I’ll use an AVCaptureSession with front/back device switching, preview configuration, recording, local video output, and cleanup on dismissal. On Android I’ll use CameraX Preview and VideoCapture with lifecycle-aware binding, lens switching, recording state handling, and proper release of resources. I’ll wire the completed video file to the backend URL you provide, including upload success/failure handling while leaving the existing backend unchanged. I’ll validate recording interruptions, camera switching, repeated open/close cycles, and locally saved videos on both platforms. I’ll then deliver the requested TestFlight build and Android Internal Testing build, following your two acceptance milestones. I can start immediately and keep the implementation limited strictly to camera integration. Is the backend upload URL and its expected video request format already available for Milestone 2? Muhammad Saad
$250 USD in 3 days
7.0
7.0

Hi, The scope is clear: native camera integration only, with AVFoundation on iOS and CameraX on Android, followed by local recording, upload and both testing builds. My mobile background includes iOS/Android delivery and TestFlight/Google Play testing workflows. I would keep this isolated from analyzer logic, UI styling and backend changes as requested. I would first stabilize permissions, camera lifecycle, front/back switching and repeated local recording on both platforms. Then I would wire the recorded file to your provided upload endpoint, including clean failure handling, and deliver the TestFlight and Android Internal Testing builds. I’m comfortable working against binary acceptance criteria and your two-milestone structure. I can start immediately after award.
$400 USD in 5 days
6.1
6.1

Hi There! I specialize in native iOS and Android development with 9+ years of experience, and I can stabilize the Golf Coach Now camera workflow using AVFoundation on iOS and CameraX on Android. I’ll handle camera permissions, front/back switching, open/close, reliable video recording, local saving, backend upload, and production-ready TestFlight/Internal Testing builds—without touching your analyzer, UI, backend, or unrelated bugs. I’m comfortable with binary acceptance criteria and milestone-based delivery. Are the existing iOS and Android projects already compiling successfully so I can work directly on the camera modules?
$500 USD in 7 days
5.9
5.9

Hello!, I am a Florida-based senior software engineer and I’d love to help with the camera integration for your golf app. The real challenge here is not just opening the camera, but making sure capture, upload, permissions, file handling, and playback work smoothly on both iOS and Android without interrupting the golfer’s flow. I’d approach it in phases: review your current app structure, implement the native capture flow, connect upload and validation, then test real-device edge cases so it feels solid in production. I’ve built production mobile features where reliability matters, so I pay attention to the details others often miss: permission states, interrupted sessions, retry logic, upload failures, and clean handoff back to the app. Relevant work: - Sports training app with native video capture and cloud upload - Field inspection app with offline media capture and sync - Fitness coaching app with iOS/Android camera recording flows - Logistics app with in-app photo/video proof upload A few quick questions: 1) Is this being added to an existing app or built as a new module? 2) Do you need photo, video, or both, and any compression/trimming before upload? 3) What backend or storage are you using for media uploads today? If you want someone who will treat this like a real product feature, not just a code task, I’m your guy. -James
$550 USD in 3 days
6.0
6.0

I see you're looking for a U.S.-based engineer to finalize the camera integration for your Golf Coach Now app. I can help you get those AVFoundation and CameraX modules working smoothly for both iOS and Android. And I’ll focus on setting up the camera functionalities, making sure video recording is stable, and implementing the upload feature to your backend URL. I can complete this work first, allowing you to test everything before you award the project or release any payment, so you’ll only pay once you’re satisfied with the results, so there's no risk on your end. I’m ready to start immediately, just to deliver the iOS TestFlight and Android Internal Testing builds as per your requirements. Rajavel Expert in AVFoundation and CameraX integrations.
$400 USD in 10 days
5.7
5.7

Hello, I have carefully reviewed your requirements and can handle the camera integration for Golf Coach Now with 9+ years of experience in native iOS and Android development. I have strong hands-on experience with AVFoundation on iOS and CameraX on Android, including camera permissions, front/back switching, stable video recording, local video storage, and uploading recorded media to backend endpoints. I understand the scope is strictly camera integration, so I will keep the implementation focused and avoid unrelated bug fixes, analyzer logic, UI changes, file-path changes, or backend modifications. I can integrate both native camera modules into your existing app, test recording and upload flows on real devices, and deliver the required TestFlight and Android Internal Testing builds. Working flow: AVFoundation + CameraX Setup → Permissions → Camera/Recording → Local Save → Backend Upload → Device Testing → Test Builds. I can work with your milestone structure and clear binary acceptance criteria and am available to start immediately. Thanks, InvokeTech
$250 USD in 7 days
5.6
5.6

Hi, Golf Coach Now’s focus on stable, native camera integration for golf swing recording is a critical foundation for delivering a smooth user experience. The main technical risk is ensuring reliable and consistent video capture and upload across both iOS and Android under varying device conditions. I typically design native camera modules by separating camera control, recording, and upload layers to isolate and manage complexity. This approach supports toggling front/back cameras and ensures stable video saving locally before triggering uploads. I’d validate early on the video recording stability and upload reliability, especially handling edge cases like app backgrounding or network interruptions to avoid corrupted or lost recordings. Ensuring robust error handling and upload retries will reduce user frustration and support seamless backend integration. I can start by outlining the camera module architecture and upload flow for your review. Clifton
$500 USD in 7 days
5.6
5.6

I can complete the camera integration for your Golf Coach Now app on both iOS and Android exactly as described. I’ll set up AVFoundation on iOS and CameraX on Android to handle permissions, front/back toggling, and stable video recording saved locally. Then I’ll wire the video upload to your backend URL. I’ve handled similar camera modules before, where the challenge was ensuring smooth recording and switching cameras without lag. This often involves careful session management and threading to avoid crashes or freezes, especially on Android devices with diverse hardware. For testing, do you have specific device models or OS versions you want to focus on for stable performance? Also, should the video uploads be retried automatically if the network drops? I’ll deliver clean TestFlight and Android Internal Testing builds promptly after each milestone, so you can review and confirm the functionality as you go. Ready to start on Milestone 1 whenever you are.
$250 USD in 7 days
5.3
5.3

Hi, I understand you need focused native camera integration for Golf Coach Now, with no scope creep into UI, analysis, backend changes, or unrelated bug fixes. I can implement AVFoundation on iOS and CameraX on Android with proper permissions, camera open/close, front/back switching, stable video recording, local saving, and upload of completed recordings to your provided backend URL. I’ll keep the modules isolated and production-ready, handle lifecycle and recording edge cases, then deliver working TestFlight and Android Internal Testing builds against your binary acceptance criteria. I’d be happy to review the existing camera entry points and integrate directly into your current app architecture.
$500 USD in 7 days
5.5
5.5

Golf Coach Now needs pure camera integration, no UI, analyzer, or backend changes, and that precision matches the scope. I will integrate AVFoundation on iOS and CameraX on Android to deliver stable open/close, front/back toggle, video recording, local save, and a reliable upload flow to your provided backend URL. Deliverables include production-ready camera modules inside your existing app, plus TestFlight and Android Internal Testing builds for rapid acceptance against binary criteria. The focus is stability and correctness across lifecycle events (permissions, orientation, start/stop recording, and cleanup) so recorded footage uploads consistently and the app remains crash-free during camera usage. Integration will be U.S. time-friendly and delivery will align with Milestone 1 (permissions + basic recording locally) and Milestone 2 (upload wired + testing builds).
$250 USD in 2 days
5.2
5.2

hi, i have reviewed the details of your project. i have solid experience with native ios and android camera integration using avfoundation and camerax. i will focus strictly on the requested camera work, including permissions, front and back camera switching, stable video recording, local saving, and upload to your provided backend url. i will then prepare the testflight and android internal testing builds and verify the complete camera flow on both platforms. i understand the scope is camera integration only and will follow your binary acceptance criteria without changing unrelated parts of the app. can we schedule a quick meeting to discuss the project in detail. it will help me understand your needs better and give you a clear plan with timeline and budget. i will also share my portfolio during the chat. mughiraa
$500 USD in 7 days
5.2
5.2

Hello, I’m excited about the opportunity to work on the Golf Coach Now app, particularly focusing on the camera integration for both iOS and Android platforms. I understand the importance of delivering a stable camera functionality that meets your specific requirements without additional complexities. With extensive experience in mobile development, I have successfully implemented AVFoundation for iOS and CameraX for Android in previous projects. My proficiency in these technologies ensures that I can effectively handle the pure camera work you require. To achieve your goals, I would approach the project as follows: - Set up the camera functionalities on both iOS and Android, ensuring permissions are correctly managed. - Implement front and back camera toggling, along with stable video recording capabilities. - Integrate the upload functionality to the provided backend URL. - Deliver fully functional TestFlight and Android Internal Testing builds, ensuring they are ready for your review. I am eager to start on this project and am confident in my ability to deliver quality results on time. Please feel free to reach out to discuss any further details or to get started immediately. Thank you for considering my proposal!
$250 USD in 7 days
4.8
4.8

With extensive expertise in AVFoundation for iOS and CameraX for Android, I understand the critical need for stable camera integration in the Golf Coach Now app. Can you share the specific backend URL for video uploads to ensure seamless functionality across both platforms? Regards, Yogesh Kumar
$340 USD in 8 days
4.5
4.5

Hi there, Camera integration instability on iOS and Android can block recording, upload, and build acceptance. I have strong experience with Software Testing, Android, and iOS Development, and I’ll stabilize AVFoundation and CameraX, verify open/close flows, front/back toggles, recording, local saves, and wire uploads to your backend URL while keeping the scope strictly to camera work. Best regards, Ian
$555 USD in 5 days
4.2
4.2

Hello, I have strong experience with native iOS and Android camera development using AVFoundation and CameraX. I can complete the camera integration with permissions, front and back camera switching, stable video recording, local saving, and upload to your provided backend URL. I can also handle TestFlight and Android Internal Testing builds and work strictly within the defined camera-only scope and acceptance criteria. I can start immediately and would be happy to review the existing app and begin with Milestone 1.
$300 USD in 7 days
4.2
4.2

Hi, Clean, scoped camera modules only — AVFoundation (iOS) and CameraX (Android): open/close, front/back toggle, record, local save, upload to your backend URL. No scope creep into analyzer, UI, or backend. >>>>Understanding Pure camera integration, both platforms Milestone 1 ($200): setup, permissions, local recording working Milestone 2 ($200): full integration, upload wired, TestFlight + Android Internal Testing builds delivered Binary acceptance, payment on confirmed delivery >>>Quick Questions Upload: simple POST/multipart, or auth headers needed? Target resolution/frame rate/max clip length? Native codebase, or cross-platform shell with native camera bridge? Existing camera UI to integrate into, or headless capture? Scoped tight, delivered clean — two stable camera modules, nothing extra. Ready to start Milestone 1 now.
$2,300 USD in 25 days
5.1
5.1

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