Android User Authentication App Development

@om26er

Hi I can implement a simple authentication process in for an Android App using native language (kotlin). Please share the screens and wireframes and I will get started right away Let’s chat to proceed and get started right now

@rohitpatidar001

With nearly a decade under my belt developing Web & Enterprise applications using Java and J2EE Technologies, I strongly believe I am the best candidate for your Android User Authentication App Development. My experience centers around Spring Boot-based microservices and RESTful APIs - which are directly applicable to creating secure, production-quality code following current Android guidelines replete with clean data access patterns, API security and more. I've honed my skills in PostgreSQL, MySQL, MongoDB among other important areas you've highlighted for this project. Having worked as a Lead Developer on finance, compliance, healthcare, and e-commerce platforms, I understand the nuances and potential threats of user authentication systems. This knowledge and understanding makes me a valuable asset as it allows me to approach the task not just from an engineering standpoint but also with a keen eye for data security. I can confidently guarantee that no plain-text password storage will occur under my watch, and secure token handling will be equally paramount. Lastly, I am exceptionally versatile; owning backend architecture end-to-end won't be an issue but if necessary I can seamlessly integrate into an existing team and codebase. Needless to say that incorporates well into your acceptance criteria. My estimated timeline is realistic allowing room for diligent work while ensuring we don't surpass deadlines. Aligned with your project specifics

@Srashtasoft

Hi there, I have read your project requirement carefully. You need a native Android app with a secure and production-ready authentication system, including signup, login, password recovery, and optional social login integration, built with clean architecture and following modern Android standards. We can build a robust authentication flow using Firebase Authentication or AWS Cognito (Firebase recommended for faster setup and reliability), structured in MVVM with secure token handling, no plain-text storage, and smooth performance across Android 8+ devices. A few quick questions: =================== Do you prefer Firebase Authentication or AWS Cognito for this project? Are social logins (Google/Facebook) required in the first phase or optional? Do you already have UI designs in XML/Jetpack Compose or only wireframes? Should we include basic session persistence (auto-login) after authentication? Best Regards, Srashtasoft Team

@mobiappsoftware

Hello, I will develop your MOBILE APPLICATION for Android with Web admin panel. I am Tulsiram. I have 10 years of experience working as Native and Crossplatform mobile application developer. I am understood your requirements. I am glad if we are working together. If you interested then let's connect. I will provide you Daily updates ,source code after development completed, 1 Year maintenance Support in following Steps: I will available daily 10-12 hours in Working days for you. I will provide you regular updates according to which modules we will decided. After approval each module by you then i will provide your complete source code of your project and will shift on your Domain. Thanks

@mascotindia123

Hello, I can help you build a production-ready Android authentication module based on your wireframes, with clean architecture and secure backend integration. I have experience developing Android apps using Kotlin, MVVM architecture, and Firebase Authentication, focusing on maintainable, scalable code. My approach: Build a clean MVVM-structured Android Studio project Implement authentication flows: User signup Login Password reset Integrate secure backend (recommended: Firebase Authentication) Add optional social login (Google, Facebook) if required Create a simple post-login home screen with active session handling Ensure secure token-based authentication (no plain-text storage) Technical standards: Kotlin (preferred) or Java Android 8+ compatibility Clean architecture + modular structure Secure session management Lint-clean, warning-free build Deliverables: Full Android Studio project source code Working authentication system connected to backend Post-login session screen README with setup, build steps, and backend key configuration Testing: Verified on emulator + physical Android devices Secure authentication flow validation Timeline: Typically 3–5 days depending on social login integration scope. Preferred backend: Firebase Authentication (fast, secure, and scalable), but I can also integrate AWS Cognito if required. Warm regards, Harpreet Singh

@caciocode

Hi, I am a software engineer. I can create an android app with user authentication. I have completed a similar project so this will be quick.

@ParasTech7

I have 21 years of experince, Principal Software engineer at Microsoft, I have extensive experince with Java and Kotlin, previous experince of building Logistics apps with auth, in app chat, payment integration, live location tracking, booking and selections., I can build your app end to end with all the apis integrated.

@royalwebraisers

Hi, As per my understanding, you need ongoing support for CRM and spreadsheet data cleanup, including record verification, duplicate removal, formatting, and structured customer database management. • Review and organise CRM/customer records accurately • Clean spreadsheet data and remove duplicate entries • Prepare categorized reports and progress summaries A few queries: • Which CRM platform are you currently using? • Approx. how many records need initial cleanup? • Do you follow any specific data formatting standards? My hourly rate falls within your mentioned budget range, and I’m available 15–20 hours weekly. I will share my portfolio on your first message. I am sure about the delivery after this first meeting. I will be looking forward to hearing from you. Kindest Regards

@jayantkumar314

I can build a secure, production-ready authentication flow for your Android app and structure it cleanly for long-term scalability. I recommend using Kotlin with MVVM architecture and Firebase Authentication for speed, reliability, and built-in support for email/password, Google, and optional Facebook sign-in. It also simplifies secure token handling and password reset flows without exposing sensitive data. I’ll implement signup, login, and password recovery with proper validation, error handling, and session management, along with a simple post-login screen to confirm authentication state. The code will be clean, well-documented, and aligned with Android best practices, running smoothly from Android 8+. All flows will be tested on both emulator and physical devices to ensure stability, and I’ll make sure there’s no insecure data handling. You’ll receive a complete Android Studio project plus a clear README explaining setup and how to swap backend credentials if needed. Estimated timeline: 2–4 days depending on social login scope. Happy to share similar work and get started immediately.

@ashinnd84

Hello there, we are a team of Data Scientist, senior Full Stack Web and Mobile App developers. Please, send me a message to discuss the work. Thanks Ashish Kumar.

@hien223234

✅Hi, Client. I am a senior Mobile App Developer✅ I have read the description of your project and understood that you are looking for iOS/Android App developer. I have over 5 years of development experience using React Native/FlutterFlow/Swift/Xcode/Android Studio and Firebase, Supabase. So, I can complete it within your timeline. Please message me to discuss your task. My main goal is to gain my client's satisfaction by completing a job with 100% accuracy. Best regards! From Hien ...

@techsty2014

This looks like a great fit, I will build the Android auth app in Kotlin + MVVM: signup, login, password reset, social sign-in via Google Credential Manager + Facebook SDK, Firebase Authentication backend. The detail most auth apps get wrong is token storage. Refresh tokens in SharedPreferences are readable on rooted devices; I store them via Android KeyStore with EncryptedSharedPreferences. Past auth integrations I will share in chat. Questions: 1) Firebase, or Cognito setup ready? 2) BiometricPrompt re-auth in scope? Looking forward to your response. Best regards, Faizan

@teodorgeorge

Hello, I'd be glad to build your Android authentication flow and turn your wireframes into clean, secure, and smooth-running code. I can set up signup, login, and password recovery with a clean MVVM structure and clear documentation. I'm comfortable integrating Firebase or Cognito for a reliable backend, keeping everything secure and easy to maintain across Android 8 and above. Thanks, Teo

@KarthikTechCon

Hi, I’m Karthik with 15+ years of experience in Android app development, authentication systems, Firebase integrations, and scalable mobile architectures. I can build a secure, production-ready Android authentication module from your wireframes using modern Android best practices and clean MVVM architecture. ✔ User signup & login ✔ Forgot/reset password flow ✔ Firebase Authentication or AWS Cognito integration ✔ Google/Facebook social login (optional) ✔ Secure token/session handling ✔ Kotlin-based clean architecture (preferred) ✔ Android 8+ compatibility ✔ Lint-clean, maintainable source code Recommended stack: • Kotlin + MVVM + Jetpack Components • Firebase Authentication (fastest & reliable for V1) • Retrofit, Coroutines, ViewModel, LiveData Deliverables: • Complete Android Studio project • Authentication backend integration • Post-login home/dashboard screen • README with setup/build instructions • Clean documented source code Security focus: ✔ No plain-text password storage ✔ Secure auth/session management ✔ Proper validation & error handling Estimated timeline: ✔ 4–6 days for complete authentication module depending on social login requirements. I’ve built Android apps involving authentication, payment systems, APIs, Firebase, admin dashboards, and scalable backend integrations. Available to start immediately with regular updates and testing support. — Karthik

@billybryan98

Hello there, I’ve read your Android authentication milestone and I’m confident I can deliver a clean, production-grade flow that ships on Android 8 and up. I specialize in mobile apps with robust MVVM architecture, Kotlin, and thorough documentation, ensuring maintainable, scalable code and easy onboarding for future backends. I’ve built secure login/signup/password-reset flows with token-based auth, integrated with Firebase Authentication and similar backends, while keeping sensitive data protected and local storage minimized. I will structure the code to be backend-agnostic, so swapping to Firebase, AWS Cognito, or your chosen service is straightforward. Expect clear MVVM modules, clean architectures, thorough linting, and a simple post-login home screen to confirm the active session. I can start immediately, deliver a runnable Android Studio project, and provide a README with build steps and backend key swaps. I’ll propose a 4-6 day timeline and prefer Firebase for initial integration, with clear migration notes if you choose Cognito later. Best regards, Billy Bryan

@harfarooqi

Hi Why me? I have 8+ years of experience in developing applications in java spring boot and microservices and this project is very aligned to my skills. I already have implemented security layer which integrates with android app on the front end using google oauth2 opaque for authentication and custom db schema for granular level authorization. How I will proceed I will create a separate auth service on the backend which will responsible for authentication and authorization. We can use google oauth2 or JWT for seuring the rest calls. The best practive is to use oauth2.0 with authorization code flow. 1. password will not be stored in naked form, a complex algorithm hash of password will be stored which is irreversible. 2. Authentication and authorization both will be separated in such a way that authentication will be perform only once. Authorization will be embedded in each service as a common artifactory. Other thoughts can be shared after discussion. Let's dive into it :) Best

@mahads31

As your project's Android User Authentication App lead, I'm Mahad Sheikh, dedicated to constructing more than just code; I seek to develop powerful digital products. Throughout my extensive experience in various industries and with international clients, I have acquired the skills and insight necessary to transform complex requirements into clean, reliable and high-impact digital systems - a perfect fit for your project. My work is centered around practical innovation, client achievement, agile & reliable execution and core scalability. You're assured of receiving a production-quality code that adheres to current Android guidelines, performs smoothly from Android 8 upward and most importantly is easy to maintain. I have worked with both Kotlin and Java allowing me the ability to structure your project using MVVM which I believe aligns well with your needs. Moreover, my expertise also spans across Web and SaaS development, system architecture, UI/UX strategy, deployment on cloud system among others which extends my potential in handling tasks like integrating authentication services with Firebase or AWS Cognito. My goal is to build dependable systems that would grow with your business just like you: employing not just a Freelancer but a long-term technology partner. For an efficient job done without compromising quality, select me - Mahad Sheikh!

@markupdudes

Hi, I’ve thoroughly reviewed your project requirements for developing a secure, production-quality Android user authentication app. With extensive experience in Android development using Kotlin and Java, I specialize in clean MVVM architecture and have integrated Firebase Authentication and AWS Cognito in previous projects. I understand the importance of maintaining secure token handling and ensuring no plain-text password storage, while delivering well-documented, maintainable code. I will deliver a complete Android Studio project including signup, login, password reset flows, and a simple post-login home screen, fully tested on emulators and physical devices to meet your acceptance criteria. Documentation will clearly outline build steps and backend key configuration. My preferred backend is Firebase Authentication for its ease of integration and robust social sign-in support. I estimate a timeline of 7 days to complete the milestone with thorough testing. Which backend service do you prefer for authentication: Firebase, AWS Cognito, or another option? Best regards,

@nicolasalexandro

I can turn your Android authentication wireframes into a secure, working app for your first milestone. I’ve built authentication flows with email/password, OTP, and social sign-in, focusing on clean UX and robust security from day one. My experience includes Android apps using Kotlin, Jetpack components, and secure storage of tokens, plus integration with backend APIs and Firebase/Auth solutions where needed. Do you already have a preferred backend/auth provider, or should I propose one that fits your roadmap?