Urgent! - Android developer certified for upgrading app

已取消 已发布的 4 年前 货到付款
已取消

HI, already i have a web app that works with XML and Firebase for notifications. Due to latest Google updates, now notifications not working on many devices. App need to be fixed and upgraded for latest Android version.

安卓 Java 移动应用开发 XML

项目ID: #19269947

关于项目

57个方案 远程项目 活跃的4 年前

有57名威客正在参与此工作的竞标,均价$19/小时

wuyong2020

Hello! I am mobile app developing expert and have good experiences with Android, iPhone, Mobile App Development... This project is very interesting for me and perfect fit with my skills. I am available now and can s 更多

$22 USD / 小时
(74条评论)
7.8
om26er

i can fix your android application as i have fixed this kind of issues before in the past. i am sure and highly confident i can fix it. lets chat to start.

$20 USD / 小时
(338条评论)
8.1
hy1990com

Hello. I have read your request and I am interested in your project. I am full stack android app developer with over 5 years experience and I have full experience in FCM. I think we can discuss more details on chat. 更多

$22 USD / 小时
(73条评论)
7.9
hemanshusondhi

NO UPFRONT PAYMENT REQUIRED! We very well understand that as soon as you have posted this project, you would be flooded with tons of bids and making it very hard to choose the right freelancer for you. Below is w 更多

$15 USD / 小时
(68条评论)
8.4
Dreamappsolution

Hi sir, I read your project description .I can do your project & able to run successfully. I have 6+ years experience for mobile application development & done over 200+ mobile apps by a good team members . It wil 更多

$15 USD / 小时
(179条评论)
7.7
covernal

Hi, How are you? My Skills are : - Programming Languages- Objective-C / Swift 1.0 ~ 4.1 / Java /React-Native,Js/ C++ / C# / PHP / Angular, .NET, ASP.NET - Mobile Programming : iOS/Objective-C/SWIFT Andr 更多

$27 USD / 小时
(74条评论)
7.9
topstar323

Hi I have mobile(Android&Ios) and backend(PHP, NodeJS) skill with 7+ years experience. I am very familiar with - On demand system such as UBER style booking , Delivery - Sharing , Dating - VPN for windows, macO 更多

$20 USD / 小时
(83条评论)
7.9
peng72083

Hello I have read your description carefully, it seems about migrating GCM to FCM. I am a senior mobile app developer, rich have experience in FCM push notification. I am very interested in your project. Hope to di 更多

$22 USD / 小时
(46条评论)
7.5
Smart1902

Hello, Hope you are doing great. I have read your project requirement & I understood it completely. we can develop this application as we have already worked on many application in past. I am having 7+years of 更多

$15 USD / 小时
(106条评论)
7.6
ksd711

Hi, I am having 6+years of experience in Android Application Development. Also, expertise in Android Studio, Java, Web services API's, Back-end & graphic design. I am here waiting to discuss about your requirement in 更多

$20 USD / 小时
(95条评论)
7.5
YuKai7777

Dear Greece Client! How are you? I am Yukai. I have read your project description carefully. I am a senior android developer, firebase notification master. So I can make good result you hope. Please check my profil 更多

$20 USD / 小时
(58条评论)
7.3
Srashtasoft

Hi Dear, Hope you are doing well! I am Kumarsingh from Srashtasoft. We don't just build an application, We build the reputation, trust, and relationship. Thank you for this wonderful opportunity.I have excellen 更多

$15 USD / 小时
(89条评论)
6.8
PakTech1

Hi! I have Bachelors in Information Technology and four years of experience with android development and design, i recently faced this issue when firebase notification function stopped working, contact me so that i ca 更多

$30 USD / 小时
(114条评论)
6.6
aclgurpreet

Hi, I have seen your requirements. I can fix push notification for Latest Android devices. Initiate chat for further discussion. Thank you.

$20 USD / 小时
(159条评论)
6.6
Julian29

Hello, Android App developer, As per your project need I can build your project more efficient with my knowledge and experience. I'm looking to work with you and I'm very sure that you'll feel great to work with me 更多

$23 USD / 小时
(82条评论)
7.5
hunmin888

Hello I have read your project description and take an interest. I am a mobile app developer who has been working on freelancer.com for 4 years. I have good experiences while developing various apps. I can perfectl 更多

$22 USD / 小时
(25条评论)
6.3
Topsunlight

Hello! I have 5 years of experience on Mobile App Development(iOS and Android). I have read your job description carefully and experience on all your requirements. I have experience on wordpress and PHP. I have 更多

$16 USD / 小时
(14条评论)
5.7
esol

Hi , Greetings ! please allow me to demo my skill. I have long expert level experience with android. Best Regds, Ehsan

$22 USD / 小时
(19条评论)
5.5
unboltsoft

We are a Ukrainian software development company that employs several passionate engineers. In the last few years we have completed many complex projects for our customers that cover the areas of health care, IoT, A 更多

$16 USD / 小时
(1条评论)
5.2
Almujahidkhan

**Not a copy paste letter, I can fix within some hours*** Hello, How are you? I have just seen your requirements of the bug fixing of push notification. I know that after Android 8.0 now there is a notification chan 更多

$16 USD / 小时
(26条评论)
4.9