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My Android app is misbehaving and I need an experienced developer to track down and eliminate the underlying bugs. I can’t yet supply crash logs, stack traces, or screenshots, so the first step will be for you to reproduce the issues on your own device or via Android Studio’s emulator, isolate the root causes, and then implement clean, maintainable fixes. The codebase is written in Kotlin with a few legacy Java classes, follows MVVM, and uses Retrofit, Room, and Firebase. Once the problems are resolved, I’ll need a new signed APK/AAB and a concise change log so I can see exactly what was adjusted. Acceptance criteria • All identified bugs are reproducible before the fix and no longer appear after the fix. • The app builds with no new warnings or lint errors. • Updated code compiles cleanly on the latest stable Android Studio. • Final APK/AAB runs on Android 8.0 (API 26) through the latest version without crashes. If this sounds straightforward to you and you’re comfortable hunting for bugs without pre-supplied logs, let’s get started. who know node js shoket io java
Project ID: 40523064
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27 freelancers are bidding on average ₹2,197 INR for this job

Hi There, With over a decade of experience in the field, I believe I'm the ideal candidate for your Android Mobile App fix project. In addition to being well-versed in the core methods and frameworks you are searching for – namely Android Studio, Kotlin/Java, REST API integration – I assure you that my design background will help me create an app that is both functional and visually appealing. Thanks, Mohinder
₹1,500 INR in 1 day
4.6
4.6

With over a decade of experience in full-stack development and a specialization in Android, I am confident in my ability to not just fix the bugs causing issues in your app, but also deliver a clean, maintainable code that will ensure smooth operation going forward. My expertise extends from Android Studio and Kotlin to handling legacy Java code, such as those found in your project. Emphasizing on modern web technologies and mobile frameworks, I have used tools like Retrofit, Room, and Firebase before--all of which are crucial components of your app. By having me on board, you're getting more than just a reliable bug fixer. You're availing an experienced developer who will reproduce and address the issues using the latest stable Android Studio and run it efficiently. I won't just fix the errors; I'll also enhance the performance and security of your app. Moreover, my understanding of business objectives combined with a deep knowledge of client requirements will minimize back-and-forth communication while maximizing our understanding of each other's expectations. In addition to being technically sound, I focus on delivering solutions that are user-friendly and scalable—both crucial traits for this specific project. Let's get to work!
₹1,050 INR in 7 days
4.2
4.2

Hi, you don't have to supply crash logs, stack traces, or anything. If you can provide code, that's enough, and I will do the rest. I can assure you one thing that I will take the full ownership to complete the project you want. Let's have a quick chat to discuss more, I can start right now. Regards, Asad
₹1,050 INR in 3 days
3.9
3.9

Hi, I can help you with this project. I'm Manoj, with 10 years of Android development experience using Java and Kotlin. I also have 3 years of Flutter experience for cross-platform apps, 2 years of Kotlin Multiplatform (Android, iOS, Desktop), and 3 years of .NET C# experience. I've worked on mobile apps from development to production, including API integration, architecture design, performance optimisation, Firebase, real-time features, and app maintenance. Please share more details about your requirements. I'd be happy to discuss the project and suggest the best approach. Looking forward to hearing from you. Thanks, Manoj
₹1,500 INR in 7 days
3.8
3.8

Hello, I am an Android developer with 5+ years of experience in Kotlin, Java, MVVM, Retrofit, Room, and Firebase. I can reproduce the issues on my devices/emulators, identify the root causes, and implement clean fixes. I have extensive experience debugging crash issues, memory leaks, API problems, Room database issues, and Firebase-related bugs. You will receive: • Fixed source code • Tested APK/AAB • Change log of all fixes • Verification on Android 8.0+ to latest Android versions I can start immediately and provide progress updates throughout the debugging process. Regards, Lalit
₹5,050 INR in 2 days
3.5
3.5

Being in the software development landscape for over 5 years, I have honed my skills in multiple technologies including Java and Android App Development, which are quintessential for this assignment. My comprehensive grasp of Kotlin, Java classes, and MVVM complies seamlessly with your codebase requirements. Furthermore, I've got first-hand experience on Retrofit, Room, and Firebase that would facilitate a holistic understanding and debugging of your Android app. I pride myself on my ability to embrace challenges without getting bogged down by lack of information like crash logs or stack traces. Over the years, I've learned to quickly adapt and leverage potential glitches as a means to improve my work. Your project does sound straightforward but it requires dedication and knack for detective work with software – something that I believe aligns perfectly with my skill-set. Your satisfaction as my client is of utmost importance to me which is why I ensure every code is thoroughly checked and tested before being signed off. Enabling builds with no new warnings or lint errors has been a priority throughout my career. Furthermore, delivering a clean compile of updated code on the latest stable Android Studio running seamlessly on multiple versions void of crashes forms my end goal - turning your current problem into a trouble-free experience for you and your users. Let's start hunting those bugs!
₹1,050 INR in 7 days
3.5
3.5

Hi there, An unreachable production site is a business emergency. I can start diagnosing your system immediately to meet your urgent 2–3 day timeline and secure that completion bonus. Looking at your listing, there is a clear conflict between Node.js, PHP, PostgreSQL, and Mongo. This technical fragmentation is a classic sign that the previous developer left behind a messy, unstable architecture—which is exactly why the site crashed and went offline. As an infrastructure and frontend expert, here is my immediate rescue plan: AWS & Routing Audit (Hours 1–3): I will dive into your AWS console to pinpoint exactly why the site is unreachable (SSL drops, crashed instances, or broken database handshakes) and restore baseline stability. Frontend Micro-Fixes: Clean up the breaking React bugs to quickly restore a fast, responsive user experience across desktop and mobile. Backend Resolution: I will audit the code. If it’s salvageable, I’ll patch it fast. However, if the previous build is fundamentally broken, the quickest route to a bulletproof system is migrating the logic to an optimized Python/Django backend—our specialty for elite speed, security, and 100% uptime. We operate under strict NDAs, ensuring your proprietary data and recovery process remain completely confidential. Let’s jump into a chat right now so I can look at the repository and AWS environment. I am online and ready to start immediately. Best regards, OneHexa
₹1,500 INR in 7 days
0.0
0.0

Hello, With my extensive experience in Android app development, I can confidently say that I'm well-equipped to tackle your bug fixing needs. Though challenging, debugging an app without crash logs or stack traces is something I've done before and really enjoy. From setting up a proper debugging environment to using my critical thinking skills to effectively isolate bugs, this process invigorates me as a developer. Marrying my skills in Android, Java, and Mobile App Development with your Kotlin codebase would be seamless thanks to my proficiency in dealing with legacy codes. In fact, the MVVM architecture pattern along with Retrofit, Room, and Firebase are second nature to me. Not only will I be able to fix the identified bugs but also ensure that the app compiles cleanly on the latest stable Android Studio. As an advocate for structured project management, I'm keen on delivering you an updated code that not just fixes the issues at hand but also compiles cleanly with no new warnings or lint errors. Rest assured, you'll have a polished APK/AAB that runs efficiently across all requisite Android versions. Let's get started on rectifying these bugs and ensuring a smooth user experience for your app! Best Regards, Habib Ullah.
₹1,050 INR in 7 days
0.0
0.0

Hello, I can help you investigate and fix the issues in your Android application. I have experience working with Kotlin, Java, MVVM architecture, Retrofit, Room, Firebase, and real-time communication systems. I am comfortable debugging applications even when crash logs or screenshots are not initially available, using Android Studio, emulators, and device testing to reproduce and isolate problems. My approach is: • Reproduce the reported issues. • Identify the root causes. • Implement clean and maintainable fixes. • Verify that the application builds correctly on the latest stable Android Studio. • Ensure compatibility from Android 8.0 (API 26) up to the latest Android version. • Deliver an updated signed APK/AAB together with a concise change log. If your application also interacts with a Node.js/Socket.IO backend, I can investigate those areas as well when necessary. Since the number and complexity of the bugs are currently unknown, I suggest beginning with an investigation phase and then proceeding with the fixes based on the findings. I look forward to discussing the project and reviewing the codebase. Best regards
₹2,000 INR in 1 day
0.0
0.0

Hello, I am an experienced Android developer with strong expertise in Kotlin, Java, MVVM architecture, Retrofit, Room, and Firebase. I can thoroughly investigate your application, reproduce the reported issues using Android Studio and real/emulated devices, and identify the root causes even without initial crash logs. I will follow a structured debugging process, document each issue, implement clean and maintainable fixes, and verify all changes through testing across multiple Android versions. The application will be built and validated on the latest stable Android Studio, ensuring compatibility from Android 8.0 (API 26) through the latest Android release. Upon completion, I will provide the updated signed APK/AAB along with a concise change log detailing every fix and improvement made. I look forward to helping you stabilize and improve your app. Thanks Alina
₹1,050 INR in 7 days
0.0
0.0

Hi, I’m an Android developer with experience in Kotlin, Java, MVVM, Retrofit, Room, Firebase, Node.js, and Socket.IO. I can reproduce bugs, identify root causes, implement clean fixes, and thoroughly test the app on Android 8.0+ devices/emulators. I’ll provide a stable APK/AAB, clean code, and a concise changelog after completion. Ready to start immediately.
₹1,050 INR in 7 days
0.0
0.0

Hello, I am an Android developer with experience in Java, Kotlin, Android Studio, debugging, and application testing. I have worked on identifying and fixing issues in Android applications by reproducing bugs, analyzing code flow, reviewing logs, and validating fixes across different Android versions. For this project, I can: • Reproduce reported issues using a physical device and Android Studio emulator • Analyze Kotlin and Java code within the MVVM architecture • Debug Retrofit, Room Database, Firebase, and related integrations • Identify root causes and implement clean, maintainable fixes • Verify fixes through testing on multiple Android API levels • Generate a signed APK/AAB after successful validation • Provide a concise change log documenting all modifications I will ensure the application builds successfully on the latest stable Android Studio version and runs reliably from Android 8.0 (API 26) onward. I am committed to clear communication and timely delivery throughout the project. Thank you for considering my proposal. Best Regards, T S Rameshkumar
₹1,050 INR in 7 days
0.0
0.0

Hello, I am interested in helping you identify and fix the issues in your Android application. I have experience with Java, Android development, REST APIs, debugging, and working with existing codebases. I am comfortable using Android Studio, Logcat, and emulators to reproduce issues, isolate root causes, and implement clean fixes. I can: ✔ Reproduce and investigate reported issues without pre-supplied logs ✔ Debug Kotlin and Java code ✔ Work with MVVM architecture, Retrofit, Room, and Firebase ✔ Fix bugs while maintaining code quality and readability ✔ Ensure the project builds cleanly on the latest Android Studio version ✔ Provide an updated APK/AAB and a concise change log I follow a systematic debugging approach to identify the actual cause of issues rather than applying temporary fixes. Although I am new to Freelancer, I am committed to clear communication, quality work, and timely delivery. I would be happy to review the project and get started immediately. Best regards, Omar Riyad Software Engineer | Java | Android Development | Debugging
₹1,050 INR in 7 days
0.0
0.0

I've debugged dozens of Android apps with similar architectures and know exactly how to track down runtime issues without pre-supplied logs. My approach: install the app on multiple devices and emulator versions, trigger the crashes systematically, then dive into logcat and Android Studio's debugger to isolate the root causes. With Kotlin and MVVM patterns, most issues stem from lifecycle mismanagement, threading problems, or data layer inconsistencies. I'll fix each bug cleanly, ensure zero new lint warnings, test against API 26+, and deliver a signed APK/AAB with a detailed changelog. Ready to start immediately and keep you updated daily on progress.
₹606 INR in 3 days
0.0
0.0

Hi, I am a Java developer with experience in building and maintaining Java applications, REST APIs, debugging issues, and working with existing codebases. While my primary experience is in Java backend development with Spring Boot, I am comfortable reading, understanding, and modifying Java code, fixing bugs, integrating APIs, and improving code quality. I understand that your project involves a mix of tasks such as bug fixes, UI adjustments, API integration, and updating legacy code to work with newer SDK versions. I am willing to learn quickly, follow existing coding patterns, and provide reliable day-to-day support. As I am building my freelancing profile, I am happy to work at a competitive rate and focus on delivering quality work and clear communication. I would be glad to discuss the current tasks and get started. Regards, Shraddha
₹1,050 INR in 7 days
0.0
0.0

Asansol, India
Member since Jun 18, 2026
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