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We are looking for skilled Android developers to help boost the performance of an existing Android application built with Kotlin and Android Jetpack (Room, LiveData, ViewModel). The app is fully functional and its design/UI will remain unchanged. The focus of this challenge is to improve speed, responsiveness, and resource efficiency across all devices, especially low-end smartphones.
N° de projet : 40247232
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46 freelances proposent en moyenne $20 USD/heure pour ce travail

➰➰ EXPERIENCED ANDROID DEVELOPER SINCE 8+ YEARS Hi there, ✋ Based on your requirements, I can optimize your existing Kotlin + Android Jetpack app for maximum performance and responsiveness without altering the UI/UX. My focus will be on speed, memory efficiency, and smooth operation on both high-end and low-end devices. ⭕ Are there specific screens or flows currently experiencing lag? ⭕ Do you have crash or ANR reports available for analysis? ⭕ Should we also consider reducing APK size and startup time? ⚡ I can improve the app’s speed and efficiency while maintaining full functionality across all devices. ➰ Let’s discuss key bottlenecks and start the performance boost. Thank you.
$15 USD en 40 jours
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
$15 USD en 40 jours
9,6
9,6

Hello, I understand you want to boost performance of an existing Android app built with Kotlin and Jetpack, without changing UI. I will profile the app, identify hotspots in rendering, data loading, Room queries, LiveData/ViewModel usage, and memory use, and implement targeted fixes to speed up startup, scrolling, and smoothness on low-end devices. My approach is pragmatic: early benchmarks, minimal invasive changes, and clear documentation. I’ll optimize database access with efficient queries, reduce main-thread work, ensure efficient LiveData updates, and apply lightweight caching where beneficial. I’ll also maintain accessibility and behavior, ensuring the app remains fully functional on all devices, while keeping design intact. The plan includes measurable goals and risk control, with regression tests and a concise changelog. What is the current target Android API level and the top 3 performance pain points you want addressed first? Best regards,
$25 USD en 25 jours
8,9
8,9

Hi. As an Android Expert, I am very interested in your project. I am very familiar with Android Studio(Kotlin). I have mobile and backend skills with 8+ years. I wish to work for you. Thanks for attention.
$19 USD en 40 jours
7,3
7,3

Hello, I understand that you are seeking Android developers to enhance the performance of your existing Android application built with Kotlin and Android Jetpack. My expertise lies in Mobile App Development, specifically in Android and Kotlin. I have a proven track record of optimizing app performance and ensuring seamless user experiences. I plan to analyze the current codebase, identify bottlenecks, and implement efficient solutions to enhance speed, responsiveness, and resource utilization. Effective communication and collaboration will be maintained throughout the project to ensure your requirements are met. Please find examples of my previous work in my portfolio https://www.freelancer.com/u/Curveballsol I am confident in my ability to deliver the performance enhancements you are seeking. Best regards, Curveball Solutions
$20 USD en 40 jours
6,4
6,4

Hi I have read your requirements and I am sure 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
$15 USD en 40 jours
6,5
6,5

Hello There!!! ★★★★ ( Performance Enhancement & Optimization for Android Jetpack Applications ) ★★★★ I understand you need to boost speed, responsiveness, and resource efficiency of your existing Android app built with Kotlin and Jetpack components like Room, LiveData, and ViewModel, without changing the UI. The goal is smooth performance across all devices, especially low-end smartphones. ⚜ Analyze current app performance and identify bottlenecks ⚜ Optimize Room database queries and LiveData observers ⚜ Improve ViewModel efficiency and memory management ⚜ Reduce app startup time and background resource usage ⚜ Implement caching strategies and lazy loading where needed ⚜ Perform thorough testing across devices and Android versions ⚜ Provide documentation of optimizations and performance improvements With 9+ years experience in Android development and optimization, I’ve successfully improved app speed, memory usage, and responsiveness for multiple Jetpack-based projects. I will carefully profile your app, apply best practices, and ensure smoother performance for all users. Looking forward to enhancing your app’s efficiency and speed! Warm Regards, Farhin B.
$15 USD en 40 jours
6,5
6,5

Hello, I understand you're seeking experienced Android developers to enhance the performance of your existing Kotlin-based application that utilizes Android Jetpack components like Room, LiveData, and ViewModel. Our team has extensive experience in optimizing apps for speed and efficiency, especially on low-end devices, without altering the current design or UI. We focus on delivering a seamless user experience by improving app responsiveness and resource management. Could you share any specific performance bottlenecks you've identified, or areas where you've seen room for improvement? Additionally, how do you typically measure and evaluate performance enhancements in your development process? I'm eager to learn more about your project and discuss how we can help achieve your goals. Looking forward to collaborating with you to elevate your app's performance. Best regards,
$15 USD en 40 jours
5,7
5,7

⏱ Timeline: 14 days (initial optimization phase) | Cost:$22/hr | Proven experience I’ve successfully completed similar projects, specifically optimizing Kotlin-based Android apps built with Jetpack components (Room, LiveData, ViewModel), and can provide relevant examples. I’m confident I can significantly improve speed, responsiveness, and resource efficiency within 14 days for the first optimization cycle. Based on my past experience, the real challenge is identifying hidden bottlenecks in database access, threading, and UI observation patterns. Many apps suffer from main-thread blocking or inefficient Room queries. In a recent case, restructuring DAO queries, introducing proper coroutine scopes, and reducing redundant LiveData observers improved startup time and low-end device performance noticeably without touching the UI. To proceed, I’ll need access to the codebase, current performance metrics (if available), target Android versions, and example devices where lag is most visible. Clarifying whether ANR or memory leak issues have been detected will also help. This is a straightforward project for me, and I’m confident in delivering measurable Android performance improvements while keeping your UI intact. I’m ready to collaborate and start immediately — let’s make this happen.
$22 USD en 40 jours
5,3
5,3

Hello!!! I HAVE ALREADY WORKED ON SIMILAR TYPE OF PROJECT OPEN CHAT WINDOW I WILL SHARE MY WORK Do you want performance optimization to focus more on database access (Room) or UI rendering responsiveness? Should we implement advanced caching and lazy loading strategies for all screens or only critical paths? What I offer: ⭐ Comprehensive profiling to identify CPU, memory, and thread bottlenecks ⭐ Optimization of Room database queries, LiveData updates, and ViewModel lifecycle handling ⭐ Refactoring asynchronous operations for better responsiveness ⭐ Efficient caching and lazy loading implementation ⭐ Testing across low to high-end devices with before/after metrics ⭐ Clear documentation of changes for future maintenance I have 7+ years of experience in Android app performance tuning, Kotlin development, and Jetpack architecture optimization. My approach: Profile the app to pinpoint bottlenecks, optimize database and UI operations, implement caching, then validate improvements across devices with performance metrics. Let’s chat to discuss your priorities and timeline. Best Regards, Shaiwan Sheikh
$15 USD en 40 jours
5,0
5,0

✋ Hi There!!! ✋ The Goal of the project:- Enhance performance, responsiveness, and resource efficiency of an existing Android Jetpack application without changing its design or UI. I have carefully read and understood your project requirements and can optimize your Kotlin-based app for speed and efficiency across all devices, including low-end smartphones. I am the best fit for this project because I have extensive experience improving Android app performance and optimizing Jetpack components for real-world use. I can provide: 1. Performance tuning of Room database queries and LiveData observers. 2. Optimization of ViewModel usage and background threading for smoother UI. 3. Comprehensive testing and profiling to ensure responsiveness and minimal resource usage. I offer UI design, database management, testing, and full source code delivery. I have 9+ years experience as a full stack developer and have successfully optimized multiple Android Jetpack apps. Looking forward to chat with you for make a deal Best Regards Elisha Mariam!
$15 USD en 40 jours
5,1
5,1

Hello there , Good afternoon! I’ve carefully checked your requirements and really interested in this job. I’m full stack node.js developer working at large-scale apps as a lead developer with U.S. and European teams. I’m offering best quality and highest performance at lowest price. I can complete your project on time and your will experience great satisfaction with me. I’m well versed in React/Redux, Angular JS, Node JS, Ruby on Rails, html/css as well as javascript and jquery. I have rich experienced in Catalan Translator, Documentation, Android, Kotlin, Android App Development, Mobile App Testing and Mobile App Development. For more information about me, please refer to my portfolios. I’m ready to discuss your project and start immediately. Looking forward to hearing you back and discussing all details.. Thank you for your attention
$50 USD en 38 jours
3,9
3,9

Hi there, I understand you need an existing Kotlin + Android Jetpack app (Room, LiveData, ViewModel) optimized for speed and responsiveness on all devices, with emphasis on low-end phones. I’m confident I can reduce jank, memory use and battery impact while keeping UI/design unchanged. - Benchmark & profile app on representative low/medium/high devices (Android Studio Profiler, Systrace) - Implement targeted fixes: Room query tuning, LiveData/ViewModel lifecycle improvements, coroutine dispatchers, lazy loading, view diffing - Add unit/integration performance tests, instrumentation tests and CI checks; deliver concise optimization report and before/after metrics Skills: ✅ Kotlin ✅ Android Jetpack (Room, LiveData, ViewModel) ✅ Performance profiling (Android Studio Profiler, Systrace) ✅ Gradle / CI integration and APK instrumentation ✅ Memory / CPU / battery optimizations and responsiveness tuning Certificates: ✅ Microsoft® Certified: MCSA | MCSE | MCT ✅ cPanel® & WHM Certified CWSA-2 I can start immediately and deliver measurable improvements within 15 days. Which screens or flows show the worst slowness (startup, list scrolling, DB queries)? Also, can you share an apk and a list of low-end target devices or API levels? Best regards,
$30 USD en 15 jours
3,9
3,9

Hello, With an extensive background in mobile app development, particularly in Kotlin and Android Jetpack, I firmly believe I can excel in enhancing the performance and optimization of your Android application. Throughout my career, I've made it a point to prioritize clean code and efficient design patterns for optimal resource management. This practice aligns perfectly with your project needs of improving speed, responsiveness, and resource efficiency even on low-end smartphones. What sets me apart is not only my technical prowess but also my business-driven mindset. I deeply understand that user satisfaction is tied to the overall performance of an application. My past projects are evidence of this where I've successfully led 50+ full-scale projects to completion, maintaining performance whilst scaling up to millions of users. Moreover, my transparent communication style will ensure you are updated at every stage, receiving a clear understanding of my approach, progress, and timelines. For a project as important as yours where fine-tuning is the primary focus, choosing someone who appreciates the user experience aspect as much as the technical aspect would be a sound decision. That person is me! Regards.
$15 USD en 40 jours
3,9
3,9

Hello, I'm Vishal Maharaj, a seasoned Android developer with 20 years of experience in Android App Development, Mobile App Testing, and Kotlin. I have carefully reviewed your project requirements. To enhance the performance of your Android Jetpack application, I propose conducting a thorough analysis of the codebase to identify bottlenecks and inefficiencies. I will then optimize the code, implement best practices for resource management, and leverage advanced techniques to improve speed and responsiveness on all devices, with a special focus on low-end smartphones. Additionally, I will fine-tune the app's architecture and leverage the capabilities of Android Jetpack components to ensure optimal performance. Looking forward to discussing this further with you. Please feel free to initiate the chat. Cheers, Vishal Maharaj
$20 USD en 40 jours
3,3
3,3

Hi, I’d love to help improve your app’s performance. I have solid experience working with Kotlin and Android Jetpack (Room, LiveData, ViewModel), and I’ve worked on optimizing apps to make them faster and smoother — especially on low-end devices. Since your app is already functional and the UI won’t change, I’ll focus on reducing lag, improving startup speed, optimizing database queries, and making the app more memory-efficient overall. I’m happy to review the current build and suggest clear, practical improvements. Looking forward to connecting Radhika
$20 USD en 40 jours
3,3
3,3

Hello Mate!Greetings , Good afternoon! I am skilled mobile software engineer with skills including Android, Kotlin, Android App Development, Documentation, Mobile App Development, Mobile App Testing and Catalan Translator. Please send a message to discuss more about this project. Looking forward to hearing from you soon
$50 USD en 21 jours
2,4
2,4

Hi there! Have you noticed if the app’s current performance issues are mostly related to background processes or UI rendering? Regardless, this is definitely something that I feel confident delivering on, given my past experience. I would love to discuss your project further! Looking forward hearing from you. Kind Regards, Corné
$15 USD en 14 jours
2,4
2,4

Hello, I’m an Android developer focused on performance tuning for Kotlin and Jetpack apps. I’ll keep your UI and design intact while sharpening speed, responsiveness, and memory use on all devices, especially low-end ones. I’ve previously tuned Room, LiveData, and ViewModel usage, reduced main-thread work, improved startup times, and optimized rendering and data flows using profiling tools. I’ll apply the same approach here with careful instrumentation and incremental improvements. I can handle the work based on this expertise and guarantee solid, verifiable gains. Please contact me so we can discuss details. I’m looking forward to working together. Best regards, Billy Bryan
$20 USD en 15 jours
2,0
2,0

Hello, I will enhance the performance of your existing Android application by optimizing its speed and resource efficiency. Given that you’re focused on low-end devices, I’ll identify and address potential bottlenecks within the Kotlin code and Jetpack components, specifically targeting Room database queries and LiveData observers. In my previous projects, I successfully improved application performance by implementing efficient data loading techniques and optimizing ViewModel lifecycle management. This approach not only increased responsiveness but also minimized resource consumption. To tackle this, I will conduct a thorough profiling of the app to pinpoint slow operations. I’ll analyze database access patterns, optimize data retrieval with Room, and fine-tune LiveData usage to ensure smooth updates without unnecessary overhead. Could you provide insights on the current load times you're experiencing? Additionally, are there specific devices or scenarios where performance issues are most pronounced? I’m ready to start immediately and ensure your app runs seamlessly on all devices. Let’s discuss this further.
$20 USD en 40 jours
2,0
2,0

Temoh, Malaysia
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Membre depuis sept. 24, 2025
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minimum $50 USD / heure
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₹12500-37500 INR
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$15-25 USD / heure
$30-250 USD
₹12500-37500 INR
₹12500-37500 INR
$250-750 USD
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$30-250 SGD
₹1500-12500 INR