YanLing L. expert freelancer in Android, iPhone, Java, Swift

Y. L.

Senior iOS and Android App Developer

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Hourly rate:

USD 30.00

IT & Programming

Ratings from clients

Iax2 Simple Call

Freelancer Angel Angel 3 years ago


About me
I have over 7 years of experiences in iOS & Android application development with Backend web services.

My core skills and development experiences are:
✔ Native(iOS, Android): Objective-C, Swift, Java, XCode, CocoaPods, Android Studio
✔ Hybrid Mobile app dev: React Native, Ionic Framework, Cordova, Xamarin
✔ Web service & Backend: XML/JSON, REST/SOAP, PHP, HTML5, Python, Ruby on Rails
✔ SQL Databases: PostgreSQL, NuoDB, Oracle, Microsoft SQL Server, MariaDB, MySQL
✔ NoSQL Databases: Apache Cassandra, CouchD, MongoDB
✔ Offline Databases: SQLite, CoreData, Realm
✔ Cloud backend: Firebase, QuickBlox, Digital Ocean Cloud, Parse, Amazon, Heroku, Back4app
✔ Push Notification: FCM/GCM, OneSignal, Apple Push Notification service (APNs)
✔ Map Kit, GPS based real-time user navigation and Tracking, Google Map, Foursquare, Geolocation, Open Street Maps
✔ VOIP, Cloud Communication: Twilio, CallKit, Tokbox, Tropo, Nexmo
✔ Chat & Messaging Engine: XMPP, OpenFire, OpenTok WebRTC, Ejabberd
✔ Facebook, Twitter, Linkedin, Instagram, Youtube, Pinterest, Vimeo
✔ Online Payment Gateway: Stripe, Braintree, Square, Creditcall

Additionally to development of new apps, a lot of the work I do is on-going maintenance of existing popular apps.

As a full stack mobile developer, I have experienced in mobile applications development in various categories like as Social networking apps, Business apps, Lifestyle apps, Education apps, Entertainment apps, Utilities apps, Travel apps.

I always aim to maintain a long term relationship with my clients. Whether you’ve lost your original developer, need additional resources, or want a brand new app, I can step in and take over wherever you need.

I promise following terms for our long term relationship
- 16/7 available for live communication
- App Store submit and approval
- 6 Month of FREE after-service for any bug fixing
- Documentation for the product and source codes
- Progress update once a day
- Dedicate 40+ hours per week

Best Regards!
Work history
I have experienced to develop iOS and Android app for 5 years.
Developed more than 20 apps including their back-end (MongoDB, PHP, MySQL, NodeJS, Python, RoR, AngularJS), design, UX, design and front-end to validate the selected tools and technologies.

Related skills

Android iPhone Java Swift