
Closed
Posted
I have an existing Android application that already handles its core logic well, but it needs further work and additional features. The application also integrates with Firebase for backend storage. Here’s what I need: We will provide product details and what needs to be enhanced on a weekly basis and the changes are going to be in Android app. Key deliverables • Implement additional features as defined in the requirement doc that will be shared on a weekly basis. The initial work was done using Windsurf.
Project ID: 40197627
56 proposals
Remote project
Active 15 days ago
Set your budget and timeframe
Get paid for your work
Outline your proposal
It's free to sign up and bid on jobs
56 freelancers are bidding on average $8 USD/hour for this job

➰➰ EXPERIENCED ANDROID DEVELOPER (8+ YEARS) Hi there, ✋Based on your requirements, I can take your existing Android app built with Windsurf and Firebase, implement weekly enhancements, and add new features as per your requirement docs ensuring smooth integration with your current core logic and backend. ⭕ Do you have a preferred workflow for weekly updates and feature tracking (Trello, Jira, Git issues)? ⭕ Should enhancements also include UI/UX improvements or strictly functional features? ⭕ Will you need unit testing or QA for each weekly feature delivery? ♾️ That's all for now. I can commence immediately. I am open to a chat to proceed forward with the next step. Thank You.
$12 USD in 40 days
10.0
10.0

Greetings from Logictrix! My name is Jas, and I am looking forward to discuss about your app in details over the Chat or Call. We have enough app developers available in team so I can assure you to deliver this project at a fairly low cost with great quality and with a commitment for long term support. *** We have now earned 'Expertise' level in AI, ChatGpt and a couple of other AI platforms for App development and other Chatbot work! *** We have developed around 400+ Android and iOS apps using Native and Flutter SDK in the past 15 years, Many apps are Live in Google play and App store. We will share our detailed portfolio over the Chat once we connect. Looking forward to your reply... Thanks and Regards Jas
$10 USD in 40 days
9.6
9.6

Hello, Greetings Hope you are doing well. I am a Mobile Application developer with over 5 years of experience. I am confident in my ability and skills to develop high-quality Mobile apps and would like to work on your Android app inhancement project. I will complete the work as per your requirements. I want to discuss more this project to prepare the final concept. So let’s discuss this in detail over chat then will make plans to start work on it. Waiting for your earliest reply. Thanks. Shubham
$2 USD in 40 days
8.0
8.0

Hi. As an Android Expert, I am very interested in your project. I am very familiar with Android Studio and Firebase. I have mobile and backend skills with 8+ years. I wish to work for you. Thanks for attention.
$15 USD in 40 days
7.2
7.2

I have extensive experience in Mobile App Development, Android, Google Firebase, and Android App Development, making me a great match for the "Additional features to an existing Android app" project. I am confident in my ability to enhance your app and deliver the required features efficiently. Budget flexibility is no issue, and I am eager to discuss the full project scope with you. Please go through my profile its 15 years old see the work I did over the years. No Win No Fee means that your satisfaction is my utmost priority. Lets discuss the job details. Moreover, I am willing to start the job and perform tasks without even being hired; it is just to show my commitment to this project. Looking forward to hear from you.
$6 USD in 3 days
6.8
6.8

Hi I will be able to help you. Please message me so that we will have detail technical discussion. I have 9+ years of combined experience in Mobile Application development, in Native on Android Java, kotlin and IOS Swift, and For Hybrid Cross platform on Flutter Dart & React- Native, and for web and backend on react js and node js, Python Django, java spring boot and php CodeIgniter mvc. Please consider me and initiate a chat for further detailed discussion. Regards, Anju
$5 USD in 40 days
6.5
6.5

Hello Client, Greeting of the day!!!! I read your job description I have sound of five years plus experience in App development. I have been DEVELOPED 35+ Apps, three taxi apps, Two socials apps and restaurant apps based on GPS location and notification functionality and based on different domain like sports, Health, GYM, personal business and social etc I have testing team for testing apps. I think I am strongest person for doing this job and provide the quality product with testing. I am always available for your support. Thanks Sr. Mobile Developer
$5 USD in 40 days
6.6
6.6

Hi There! ⚜⭐⭐⭐⭐⚜(( Enhance existing android app with new weekly features and firebase improvements. Extend current core logic without breaking stability. Maintain clean structure from windsurf based code. ))⚜⭐⭐⭐⭐⚜ I understand you already have a working Android application and now need a reliable developer to continue its growth step by step. The focus is to implement new features every week based on your requirement document while keeping the current Firebase integration and business logic intact. I HAVE ALREADY WORKED ON SIMILAR TYPE OF PROJECT AND WILL READY TO SHARE SIMILAR WORK IN THE CHAT. My working style is to study the existing code first, add features in a modular way, and test each update so the app remains stable for users. I pay close attention to performance, data handling with Firebase, and clean Android Studio structure so future changes become easier. It would be great to connect and review the current application and your first set of enhancements. Warm Regards, Farhin B.
$5 USD in 40 days
6.4
6.4

I’m an experienced Android developer with expertise in Firebase and incremental feature updates. I can implement your weekly enhancements efficiently while maintaining clean, maintainable code in your existing Windsurf-based app.
$5 USD in 40 days
5.5
5.5

Hello, the requirements are mostly clear, but I’d appreciate discussing a few aspects for clarity. Please message me so we can proceed accordingly. Thank you,Nishit:)
$10 USD in 40 days
5.7
5.7

Hi There!!! The Goal of the project:- Enhance an existing Android application by implementing additional features and improvements based on weekly requirements while maintaining Firebase backend integration. I have carefully read your project description and understand that you need ongoing feature development for your Android app built with Windsurf, with product details provided weekly. I am the best fit because I can quickly implement new features, maintain app stability, and ensure smooth Firebase integration. Implement additional features as defined in weekly requirement documents Enhance Android app functionality while keeping existing core logic intact Integrate seamlessly with Firebase for backend storage and data management I provide full services including UI design, database management, testing, and full source code delivery. I have 9+ years experience as a full stack developer and have completed similar projects adding features to live Android apps with Firebase backend. Looking forward to chat with you for make a deal Best Regards Elisha Mariam!
$6 USD in 40 days
5.1
5.1

Hi, Got it. You already have a working Android app with Firebase, and now you need steady, structured feature enhancements delivered week by week. That’s a maintenance + iterative development setup, and it works best with clean planning and tight execution. How I’d support this • Review the existing codebase and architecture first to understand current patterns and technical debt • Break each weekly requirement doc into clear tasks with impact analysis before implementation • Deliver features in small, testable increments to avoid regressions • Keep Firebase reads/writes optimized and consistent with existing data structures • Flag early if any requested change could affect performance, security, or scalability Working Style I focus on stability first, then features. Expect clear communication on feasibility, timelines, and trade-offs — especially if a request risks breaking existing flows. The goal is sustainable progress, not rushed patches. This kind of ongoing enhancement model works very well when the codebase is respected and evolved carefully rather than hacked around. For further details, let’s connect.
$8 USD in 40 days
4.7
4.7

Hello, I can help you extend and maintain the existing Android app with steady weekly improvements. I’ve worked on Android apps using Firebase and am comfortable continuing from an existing codebase, whether it’s Flutter, Kotlin or mixed with Java. I’m fine with a weekly workflow where requirements are shared and implemented incrementally. I’ll make sure new features fit cleanly into the current logic and follow best practices. Happy to align on fixed weekly hours and get started right away.
$6 USD in 40 days
4.6
4.6

Hello, I'll handle weekly feature work for your Android app, with careful integration to Firebase. I know you want ongoing enhancements based on a weekly spec. I can handle it because I’ve built Android apps with Firebase storage and modular feature work. I’ve extended apps built on Windsurf-like architectures and kept code stable during rapid iterations. How I’d implement it: - Review weekly requirement doc and set clear acceptance criteria - Create a lightweight feature branch, implement, and run quick tests - Integrate with Firebase as needed and perform small, safe releases - Provide a brief demo and notes for the next week Availability: I can start right away; first deliverable within 5–7 days. Do you have a preferred weekly release cadence and first feature scope? Thanks,
$20 USD in 22 days
4.1
4.1

Hi, I understand you have an existing Android app using Firebase and Windsurf, and you require ongoing weekly feature enhancements while maintaining the stability of the current core logic. The goal is to implement new functionalities efficiently, ensure seamless integration, and maintain clean, maintainable code. I will share my portfolio on your first message and am confident about delivery after our initial discussion. Implementation Approach: • Review current app architecture and Firebase integration • Implement weekly feature updates with proper testing • Ensure performance, reliability, and maintainable code structure Queries: • Are the updates purely native Android or hybrid? • Will backend changes also be needed in Firebase? • Preferred process for release/testing after each weekly update? I will be waiting for your response. Kindest Regards,
$8 USD in 40 days
4.2
4.2

Hi there, I can continue and enhance your existing Android app on an ongoing, weekly basis. I’ll work directly on the current codebase, adding features as shared and keeping everything stable with Firebase integration. ✔️ Weekly feature enhancements based on your requirement docs ✔️ Clean updates to existing Android code (Windsurf-generated or manual) ✔️ Firebase-safe changes with performance and stability in mind ✔️ Regular commits and progress updates Ready to start immediately once access is shared. Best regards, Talha
$5 USD in 40 days
3.0
3.0

Hello, I have experience working on existing Android applications and adding new features without disturbing the current core logic. I am comfortable working with Firebase backend including database, authentication, and data syncing. I can review the current codebase built using Windsurf and continue development smoothly based on weekly requirement updates.
$5 USD in 40 days
1.5
1.5

Hello, I’m an experienced Android developer with strong expertise in Kotlin/Java, Android architecture, and Firebase integration, and I’d be happy to support your application with continuous feature enhancements and improvements. Since your app’s core logic is already stable, I can focus efficiently on: ✅ Implementing new features based on weekly requirement documents ✅ Enhancing existing functionality and UI/UX ✅ Firebase integration (Firestore, Auth, Storage, Notifications, etc.) ✅ Bug fixing and performance optimization ✅ Clean, maintainable, scalable code following MVVM/modern Android practices ✅ Regular updates and clear communication every week I’m comfortable working in an iterative/weekly delivery model, ensuring each set of changes is implemented, tested, and delivered on time. Why choose me? Strong Android development experience Hands-on Firebase backend experience Clean architecture & best practices Reliable weekly delivery Quick turnaround and responsive communication I’m ready to start immediately and can commit to long-term collaboration. Let’s discuss the first set of requirements and get started. Best regards, Shahid Khan Android Developer
$2 USD in 40 days
1.0
1.0

Hello, I have over 8.5 years of experience in Android development using Kotlin and Java. I am skilled in designing applications, socket programming, Firebase, Google APIs, payment gateways, image processing, and working with various third-party libraries. Additionally, I have experience with AWS, RESTful APIs, Jetpack components, version control systems (VCS), Clean Architecture (MVVM, MVP, Dependency Injection, Room Database), and CI/CD. I am confident in my ability to complete tasks accurately and within deadlines. I look forward to discussing this further in chat.
$10 USD in 40 days
1.1
1.1

I work on projects where we help clients reach their goals or improve their online presence, making apps that function smoothly and evolve with their needs. We’ll help you enhance your Android app with new features and improvements, based on your weekly product updates, ensuring the app stays reliable and up-to-date. I bring strong off-platform experience and understand the importance of a clean, user-friendly interface that integrates seamlessly with Firebase backend storage. Key skills include Android development, feature implementation, and backend integration. We can chat more about your app’s next steps, and I promise not to bug you with tech jargon. Let's have a chat, Alicia
$5 USD in 14 days
0.4
0.4

Santa Clara, United States
Member since Feb 2, 2026
$10-30 USD
₹1500-12500 INR
$30-250 USD
$30-250 USD
₹1500-12500 INR
$250-750 USD
₹600-1500 INR
$10-30 USD
$250-750 USD
₹600-1500 INR
$750-1500 AUD
$250-750 USD
$250-750 USD
$250-750 USD
$250-750 USD
₹12500-37500 INR
$30-250 USD
$8-15 USD / hour
₹600-1500 INR
₹1500-12500 INR