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I’m looking for an experienced Android developer to step in and refine an existing native app. The core build is stable, but it still lacks a reliable, well-structured push-notification system. Your task is to review the current Kotlin/Java codebase, integrate (or repair) FCM-powered notifications, and be sure they respect the app’s current UX flows—no rogue alerts, no missed messages. Once the notifications are live you’ll help me run a quick round of QA on a small device matrix, package a signed release APK, and supply the updated source in Git so I can keep the repository current. Clean commits, clear comments, and a short README on any new dependencies will be part of the hand-off. If you’ve shipped native Android apps before and can demonstrate tight, battery-friendly push handling, let’s talk timelines and get this out the door.
Project ID: 40367001
44 proposals
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Active 7 days ago
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44 freelancers are bidding on average $163 USD for this job

Hello, i can fix Firebase Push Notification issue quite quickly, i have implemented FCM in many native android applications and i can show you sample apps. i am a native Android applications developer with over 8 years of experience developing Android mobile applications. I have completed more than 515 projects. I am confident that I will provide you with quality work and the best software services. Let's chat to proceed.
$100 USD in 3 days
8.9
8.9

Hi there, I am the best here! Please check out my profile and see what others have to say about the work I've done related to the skills you're looking for. Hope to work together soon. Thanks!
$140 USD in 7 days
7.5
7.5

Hi i have rich expertise android app developement and have implement fcm dozens of time so im best match for this sort of projecy my qoutaion is 120 and can deliver within 2 to 3 days
$125 USD in 3 days
6.5
6.5

Hi, It will be an honor for me to work with you. I have got 12 years of android application development experience (Kotlin, Java). Lets discuss this in detail and get this started. Looking forward to hear from you.
$225 USD in 7 days
6.9
6.9

Hi, I’d be happy to help you with this. I’ve done similar projects and focus on fast, reliable delivery. Let me know the details — I can start right away. – Arun
$140 USD in 7 days
6.0
6.0

As an experienced Android developer, I understand the importance of a reliable push-notification system in enhancing the overall performance of a native app. My proficiency in both Kotlin and Java, two essential languages when working with Android apps, will greatly aid me in reviewing your codebase and successfully integrating FCM-powered notifications. A key aspect of your project is ensuring that the app's UX flows are respected during this enhancement. Drawing from my extensive experience in Mobile App Development, I am well-versed with the challenges and intricacies that often arise in this process. I guarantee that no rogue alerts or missed messages will affect the smooth functionality of your app once we complete the task. Lastly, I pride myself on delivering clean commits and clear comments - as evident in my work with Git - alongside a concise README to ensure easy maintenance for future reference. Evidently, my skills align perfectly with your requirements; let's discuss timelines and get your native Android app upgraded to the best version it can be.
$140 USD in 7 days
5.7
5.7

I am an experienced Android architect with 7+ years building stable native apps and robust FCM push flows. I’ll refine your notification system, run QA across devices, and deliver a signed APK with clean Git commits. Expect battery‑friendly handling, clear documentation, and a smooth hand‑off aligned with your current UX.
$140 USD in 7 days
5.5
5.5

Hi, I can help refine your Android app and implement reliable FCM push notifications with proper UX and battery efficiency. I’ll review the codebase, handle QA, and deliver a signed APK with clean Git updates and documentation. Happy to get started. Thanks, Iyyappan
$140 USD in 2 days
5.1
5.1

Hello I can review your existing Android codebase and implement a reliable, well-structured FCM notification system aligned with your current UX. I will ensure no duplicate, missed, or intrusive notifications with proper handling for foreground, background, and killed states. Push logic will be optimized for battery efficiency and stability across devices. I’ll refactor or clean up existing notification code if needed for better maintainability. After integration, I will assist with QA testing across a small device matrix. I will generate a signed release APK and update your Git repo with clean commits and clear documentation. A short README will explain setup, dependencies, and notification flow. Ready to start immediately and deliver quickly.
$120 USD in 5 days
4.9
4.9

With over a decade of experience in Android app development, I am confident in my capabilities to take your existing native app to the next level. My profound skills in Kotlin, Java, and Mobile App Development make me more than capable of integrating or repairing the Firebase Cloud Messaging (FCM) system your app lacks. Moreover, I prioritize maintaining a smooth and user-friendly experience throughout any enhancements, which is exactly what your app needs for the push notification system. As an accomplished developer, I understand that the job goes beyond incorporating features. Your project will also benefit from my skills in clean code writing, efficient debugging, and thorough QA testing. I assure you of delivering a fully-functional and stable new feature with a well-documented process on Git. You'll find clean commits, clear comments, and a short README assisting you to keep up with future development. More than just a service provider, I aim to be a long-term partner for your digital solutions. My proven track record of 100+ successful projects speaks to my proficiency in meeting client needs promptly while maintaining effective communication. Let's get started on turning your app vision into reality together. Choose me for reliable solutions that help businesses grow and generate results.
$450 USD in 7 days
4.7
4.7

I can step in and refine your existing native Android app, focusing on stability, performance, and a smoother user experience. I work specifically with native Android (Kotlin/Java) and understand how to improve an existing codebase without disrupting what already works. I’ve helped teams modernize and optimize shipped Android apps by cleaning up legacy code, fixing crashes and ANRs, improving load times, and polishing UI flows to better match current design and OS guidelines. I’m comfortable quickly assessing an existing project and prioritizing high-impact fixes. My approach would start with a brief review of your current app, crash logs, and feature wishlist, then define a focused enhancement plan with clear milestones and testing before each release. I would love to chat more about your project! Regards
$140 USD in 7 days
4.2
4.2

Hello,the tricky part here isn’t just adding FCM it’s making notifications behave like part of the app, not random interruptions. I’d refine your current setup by aligning FCM triggers with backend logic and app state to ensure reliable, clean, and battery-friendly delivery in just 1 day ,with over 4+ years of experience building scalable backend systems, RESTful APIs, Android apps and automation solutions using these tracks including Java (Spring Boot), Python/Django Happy to jump in, fix the flow, and get this ready for a smooth release.
$250 USD in 1 day
3.4
3.4

Hi, I can step in and refine your existing Android app by implementing a reliable, well-structured FCM push notification system aligned with your current UX. I understand that the core build is stable, and the main focus is ensuring notifications are accurate, non-intrusive, and delivered consistently without affecting performance or battery life. Here’s how I’ll approach it: • Review your current Kotlin/Java codebase and identify gaps in notification handling • Implement or fix Firebase Cloud Messaging (FCM) integration • Ensure proper handling for foreground, background, and terminated states • Align notifications with your app’s UX (no duplicate or irrelevant alerts) • Optimize for battery efficiency and delivery reliability Once implemented, I’ll: • Run QA across key devices/emulators • Deliver a signed release-ready APK • Push clean, well-documented code to your Git repository • Provide a short README covering setup and any dependencies I’ve worked on production Android apps with real-time notifications and can ensure a stable, scalable implementation. Let’s connect and get this completed efficiently.
$140 USD in 2 days
3.1
3.1

Hi, I can review your Android app and implement a reliable, well-structured FCM push notification system that aligns with your current UX—no duplicate or missed notifications, and optimized for battery efficiency. I’ll handle integration/fixes, end-to-end testing on real devices, and prepare a signed release APK, along with clean Git commits and a short README for future maintenance. I’ve worked on native Android apps with FCM and can ensure stable, production-ready notifications. Ready to start.
$50 USD in 3 days
2.3
2.3

Hi, I can do this. With extensive experience in Android development, I specialize in refining existing applications and enhancing user experiences. I will thoroughly review your Kotlin/Java codebase to integrate or repair the FCM-powered push notification system, ensuring it aligns seamlessly with your app's UX flows. My approach includes implementing battery-efficient notification handling to prevent rogue alerts and missed messages. After deploying the notifications, I will conduct a comprehensive QA across a small device matrix, package a signed release APK, and update the source code in Git with clean commits, clear comments, and a concise README for any new dependencies. I am committed to delivering a polished product that meets your expectations. Let’s discuss timelines and get this project moving forward. Ashnasajid
$140 USD in 3 days
3.9
3.9

Your app needs a reliable FCM notification system that fits your existing UX—no missed messages, no disruptive alerts. I'll audit your Kotlin codebase, integrate battery-aware push handling with proper lifecycle management, run QA across your device matrix, and deliver a signed release APK with clean commits, dependency documentation, and Git repository ready for handoff. $140, 5 days. Best regards, Val
$140 USD in 5 days
1.8
1.8

Hi, This looks like a focused issue, and I’ve worked on similar cases where FCM notifications were either unreliable or not aligned properly with app flow. I can help you: * Review your current notification setup * Fix or integrate Firebase Cloud Messaging properly * Ensure notifications are delivered reliably (foreground, background, and killed state) * Align them with your app’s UX so there are no unnecessary or missed alerts I’ve handled Android apps in Kotlin/Java where notification behavior and battery efficiency were critical, so I’m comfortable working within an existing codebase and improving stability without breaking current functionality. Once done, I can also help with QA checks, signed APK generation, and clean Git updates with proper documentation. Quick question: Are notifications currently partially working, or not triggering at all? I can start immediately. Adnan
$140 USD in 7 days
1.1
1.1

Hi Hiring Manager, I’m Sean, an Android Developer with 8 years’ experience specializing in Kotlin, Java, and Android Architecture. I’ve previously shipped native apps with robust FCM implementations, including a finance app where I rebuilt notification handling to ensure reliable, battery-friendly delivery and consistent UX flows. My approach will be to review your Kotlin/Java codebase, identify and fix notification registration/receiving edge cases, implement FCM best practices (topic vs token management, high/low priority handling), and ensure notifications respect current UX flows; I can do this project perfectly and ensure no rogue alerts or missed messages. I will also add unit and integration checks for the notification path and optimize for Doze/Battery Saver scenarios. I typically deliver this scope in 7 days, including QA on a small device matrix and a signed release APK with clean Git commits. I will include tests, logging/monitoring hooks, OWASP basics for any network calls, clean code, clear comments, and a short README for new dependencies. Can you share the current FCM setup (server keys, topics used, and whether you use token refresh handling) and a link to the repo or a branch to review? Best regards, Sean
$160 USD in 7 days
0.0
0.0

Hi there, I’ve worked on several native Android apps with complex, battery-friendly push-notification systems, so I’m confident I can refine your existing app’s notifications to fit seamlessly into your UX flows without rogue alerts or missed messages. I noticed you want a clean, professional integration of FCM-powered notifications along with automated, user-friendly QA on a small device matrix, and clear hand-off with well-commented code and clean commits. I’m all about that kind of smooth, integrated process. I’m a developer who loves Kotlin and Java, focusing on making apps reliable and user-friendly. I’m confident I’m the right person to quickly review, repair, and ship your notification system with fast turnarounds and open, speedy communication. I am available for a quick chat! Regards, Oreliom
$100 USD in 7 days
0.0
0.0

Hi there, I have completely read your requirements. You are looking for an experienced Android developer to fix and refine the FCM (Firebase Cloud Messaging) push-notification system in your existing Java/Kotlin app. I can perfectly handle this. I have extensive experience integrating and debugging FCM in native apps. I will ensure the notifications are reliable, battery-friendly, and respect your app's UX flow without any missed or rogue alerts. After fixing the issue, I will run QA tests, provide a Signed Release APK, and push the cleanly commented updated code to your Git repository along with a short README for any new dependencies. Since I am new to this platform, I am bidding only $50 in exchange for a 5-star review. I am ready to start immediately and get this out the door fast. Let's chat!
$50 USD in 1 day
0.0
0.0

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