Find a professional android app developer in London

We are looking to engage an experienced mobile app developer to help take an existing working web-based application and prepare it properly for iOS/iPadOS and Android deployment. Please note that the existing app, source files, branding, report structure, documentation and workflow materials are the copyright and confidential intellectual property of Action Dry Emergency Services Ltd. We are happy to discuss the general scope initially, but the full app package and handover materials will only be shared following signature of an NDA. The app is a field tool for water damage technicians, currently built as a browser-based HTML/JavaScript application. It allows users to upload or take site photographs, annotate moisture readings onto the image/canvas, record job/property details, and generate a report output. We have prepared a developer handover pack and a mobile app source package using a Capacitor-style wrapper approach. We now need an experienced developer to review, refine, test, package and guide us through the final app-store-ready build process. The developer must be able to assist with Reviewing the existing HTML/JavaScript app and mobile wrapper; Improving mobile / iPad usability, Confirming camera/photo capture works properly on iPhone, iPad and Android devices; Checking report/PDF generation / file handling; Preparing iOS / Android builds; Advising on Apple App Store / Google Play submission requirements; Ensuring permission wording, privacy disclosures and app-store compliance; Providing clear guidance on developer account, signing and release steps. This is not to be a large rebuild from scratch. The core app is already working, but we need someone who can professionally package, test and harden it for real-world field use. Please let me know if this is within your area of expertise, whether you have experience with Capacitor or similar web-to-mobile app frameworks.

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