Web Services Developer

Balaji B Email ID: ******.****@*****.***

Sr. Android Developer Phone: 678-***-****

PROFESSIONAL SUMMARY:

●Over 7 years of experience in Software development. Over 5 years as an Android application developer and over 2 years as a Java-based web application developer.

●Proficient with Java, C Programming, and Android SDK Version Android 1.5 to Android 6.0.

●Good experience in Object Oriented Design (OOD), analysis (OOA), modeling (OOM) based on Unified Modeling Language (UML).

●Experience in working with Google Maps API, GPS Location Data, Google messaging, Volley and Push Notification.

●Good mobile and web design skills using Activities, Fragments (android), HTML, JavaScript, AJAX, and XML.

●Strong expertise in version control like GIT, Subversion (SVN) and team Foundation Server (TFS), Bitbucket.

●Worked on HTML, CSS, JavaScript, AJAX, JQuery mobile, Bootstrap, JSON, XML, Cordova and native Android.

●Extensively used SQLite database for data storage.

●To improve optimization used Recycler view component and set different layout managers to this.

●Experience in developing Barcode scanning app.

●Experienced with complete Android lifecycle and Fragment life cycle process.

●Experience in Android device support, publishing apps to Google Play Store, Memory Management.

●Strong background in successful application of OOPS designs principles and methodologies

●Strong Understanding of Mobile Design Paradigm.

●Experience with Object Oriented Analysis and Design (OOAD), Agile Software Development, Scrum Methodology.

●Expertise in web development applications using Core Java, Servlets.

●Experience in Struts and Spring frameworks.

●Handling various technical aspects like coding of modules using given design specifications, debugging and fixing the defects as well as analyzing the root cause.

●Experience in using Storage options in Android like Shared Preferences and internal storage using SQLite, Parse.

●Experience in using Java Native Interface (JNI).

●Learnt to work under heavy pressure and deadlines.

●Involved in TDD, developing Test plans, Test Cases (Manual/Automated), Test Procedures and white-box and black-box testing.

●Worked with Activities, Fragments, Android Binding, Android Framework, Media player and Adapters, Async Task, Intent Services, Broadcast Receiver, Media player, Content Providers, Location Services and Push Notification.

●Good understanding on Android Frameworks like Phone Gap, JNI, and HAL.

●Used IDE’s like Eclipse, Android Studio, Visual Studio, Emacs, Vim, JBuilder, Xamarin, IntelliJ IDEA, Dreamweaver, Web Services & Parsing Techniques SOAP, REST & XML (SOAP API), JSON (Restful API), OAUTH, DOM, SAX.

TECHNICAL SKILLS:

Languages

C, C++, J2SE, J2EE, HTML5, CSS3, XML, AJAX, JavaScript, JQuery, PL/SQL

Frameworks

Phone-Gap, Corona SDK, Theappbuilder, Spring, Struts, Hibernate

Android Libraries

Picasso, Retrofit, Butterknife, Gson, Dagger

Android Skills

Android SDK, ADT, DDMS, Logcat debugging, ADB Logcat, SQLite, Android Emulator, Google APIs, Google Analytics, GSON, Google Maps Location Services, Open Sources Web APIs, Retrofit, Volley, Butter Knife, Picasso, Material Design

Database

SQLITE, SQL Server, Oracle, MySQL, Realm Database

Tools

Android Studio, IntelliJ IDEA, XCODE, Eclipse, NetBeans 6.X, MS Visual Studio, IBM Worklight, Photoshop, Sublime Text, Atom

Development IDE’s

Android Studio, Eclipse, IntelliJ, NetBeans, Visual Studio

Application Servers

Tomcat 5.5/6.0/7.0, WebSphere 6.0

Web Services

Android SDK, HTTP, Restful Web Services, Google APIs, XML, JSON, DOM parsers, SAX parsers

PROFESSIONAL EXPERIENCE:

Lucile Packard Children’s Hospital, Palo Alto, CA May 2016 – Present

Sr. Android Developer

Description: Stanford Health Care and Lucile Packard Children’s Hospital Stanford provide the very best care not only to our patients, but also for the employees working in it. This application deals with the competitive and comprehensive benefits and programs of our employees.

Responsibilities:

●Implemented Full life cycle development and modification of existing applications to add new features emphasizing reliability, scalability and performance.

●Used SCRUM-Agile software development method for managing application developments and software design.

●Created Widgets using Google material design.

●Designed and developed the user interfaces, Designed Dynamic UI with Fragments using Google Material design.

●Implemented MVP pattern using Dagger 2.

●Updated the look and feel following Material Design guidelines.

●Used Retrofit and GSON for network calls and parsing the JSON response.

●Used Android content providers for implementing features like sending E-mails, SMS, calls etc., from the app and designed suitable GUI for these applications.

●Responsible for executing code, deploy application and fixing the bugs.

●Worked on communicating with Restful services to implement Single Sign-on for Associates.

●Created and used SQL Queries, Scripts and Stored Procedures for data validations.

●Developed business logic of the application and experience with SQLite local data storage.

●Stored the user information in Realm which is the internal database.

●Developed some parts of app by writing native methods using JNI.

●Implemented Notification Manager to display updates on the notification bar.

●Implementing Broadcast Receivers for Android.

●Worked on Continuous Integration and code version using GIT.

●Improved the HTTP calls by migrating the request from AsyncTasks to RxJava.

●Used Junit, Espresso for unit and instrumentation testing.

●Testing included emulators and device testing with multiple versions and the sizes with the help of ADB.

●Fixed the bugs identified by the QA testing team.

●Used RESTful Web Services to fetch data asynchronously and render an appropriate view.

Environment: Android SDK, Android API's, Restful WEB services, XML, JSON, Log cat, Windows7, ADT plug-in, GIT (Version control), DDMS console, ADB server, Emulator, GSON.

Agco Corp, Atlanta, GA Apr 2014 – Mar 2016

Android Developer

Link: https://goo.gl/o2Nk8d

Description: This application was developed for the users and dealers/distributors to search for the parts required for their Agco machines. In this app they can find their respective models and part numbers of each individual machine. Later the required parts can be added to a wish list and this list can be mailed to the Agco authorized dealer.

Responsibilities:

●Involved in full life cycle of the application including wireframe design, server development and client development.

●Development of various modules in accordance with Agile Methodology framework and Scrum method of project management.

●Collaborating along with the Business Analysis, Design, QA and Development team in shaping the product.

●Developed the UI using fragments, Layout and other UI components.

●Involved in creating reusable component with fragments for different resolution devices and different orientation of landscape and portrait.

●Created Widgets using Google material design.

●Used various devices, which include tablets and phone with a latest Android OS to the application.

●Used SOAP UI for access web service.

●Used RxJava for some web service requests to the Android app.

●Converted data from API into JSON format files and retrieve useful information using AJAX calls to display them on the application.

●Embedded Google Maps API, GPS location data into app with Zooming controls.

●Enabled GPS/Wi-Fi to detect user location from where to begin searching.

●Singleton Object has used to achieve synchronization.

●Tested the application on various Android devices.

●Worked on the local data storage using shared preferences.

●Extensively utilized Async Task, Thread, Handler, Services to provide smooth UI experience.

●Implanted JSON to create interaction between server and application.

●Handling JSON data using efficient parsing techniques.

●Developed code for Views, Viewmodels and business code.

●Used OOPS methodologies to generate classes in Java.

●Used Espresso as an Android test automation framework to write powerful and robust automatic black-box test cases.

●Unit tested all the classes using JUNIT at various class level and methods level.

●Performed Unit testing on the various modules/functions to ensure that the output is as expected.

●Worked on Continuous Integration and code version using GIT.

Environment: Android API's, ADT plug-in, JDK 1.6, XML, v14 preference, openGL plugins, GLsurface view, Android SDK, Android Studio 3.0+, GIT.

Allstate Insurance Co, Northbrook, IL Oct 2012 – Feb 2014

Android Developer

Link: https://goo.gl/EvDTZ8

Description: It is an insurance company that provides assistance to its customers to report a claim, pay bills, on road assistance, submit damage photos to receive a quick claim, check the driving performance and progress, find the nearest agent using the phone GPS and update the policy. It helps to schedule a payment through bank accounts and credit cards

Responsibilities:

●Participated in all the phases of the Software development life cycle (SDLC) which includes Development, Testing.

●Involved and designed many UI screens matching the previous versions by upgrading the features.

●Worked on the local data storage using shared preferences.

●Created a local database using SQLite to store and retrieve the data.

●Created and used SQL Queries, Scripts and Stored Procedures for data validations.

●Developed very interactive user interface using widgets like menus, Dialogs, boxes, buttons, lists, views and fragments.

●Utilized Google Maps API to enable Google map search for near locations.

●Implemented zip code functionality using Location Manager API and also implemented Google Maps API.

●Developed business logic along with connecting the application to the server with REST web services.

●Download and upload content from back-end web server via REST API.

●Pitfalls of image loading on Android are handled by using Picasso library.

●Implemented the payment gateway integration to process the payments for purchasing the merchandise.

●Implanted JSON to create interaction between server and application.

●Handling XML data using efficient parsing techniques like JSON & DOM parser.

●Implemented Broadcast Receiver.

●Implemented Third party libraries for network calls and parcening JSON responses.

●Involved in creating reusable component with fragments for different resolution devices and different orientation of landscape and portrait.

●Tested the application on various Android devices.

Environment: Android SDK, Android NDK, Android Studio IDE, Java, GIT, XML.

Overstock, Midvale, UT Aug 2011 – Sep 2012

Mobile Application Developer

Link: https://goo.gl/WvFKPa

Description: Overstock.com is one of the leading e-commerce website. The overstock shopping app allow users to search, browse and purchase products available on the overstock.com website. The app is faster for the user access.

Responsibilities:

●Actively participated in all the phases of SDLC like design, development, testing.

●Creating Intents (explicit, implicit), Multi-threading and Creating Linear, Relative and Table Layout.

●Implementing Date picker, Time picker and surface view.

●Used effectively All Android Application components.

●Created Widgets like list View using Array adapter and Views as mentioned in the client requirements.

●Worked extensively with Java, Android Touch frameworks and third party API including Java mail API.

●Used adb logcat, DDMS for Debugging.

●Involved in Development, Integration and Testing of application modules.

●A key resource for layout and UI work utilizing XML, shape drawable, adaptor views, activities, fragments, custom views (Tableview, Textview, Edittext) etc.

●Also involved in doing reviews of the developed integration components.

●Involved in peer to peer code reviews and cross checked whether coding standards are being followed.

Environment: Android SDK, Android NDK, Android Studio IDE, Java, GIT, XML.

Wipro, Hyderabad, India Aug 2009 – Jun 2011

Java/J2EE Developer

Description: It’s a flight reservation web application. This application was developed to help the users book a flight. On its successful completion the user will receive an acknowledgement to the user’s registered email id. This application has made things simpler using EJB’s, Sessions. Primary modules include Registration, Allocation, Payment, Order History. Used struts to develop the application.

Responsibilities:

●Involved in design, development and testing phases of software development cycles.

●Implement a web-based application using Spring Framework.

●Designed the front end using HTML, CSS, JSP and Spring Tag Libraries. Used Struts MVC and Web Flow to bind web parameters to business logic.

●Extensively used Eclipse to write code.

●Integrated Social media connectivity along with Email through Java Mail plug-in to enable promotion through users.

●Used JavaScript for client side validation and JSF validators for server side data validations.

●Involved in designing UML class diagrams.

●Developed code for Java Multithreading.

●Used Spring Framework for Authentication and Authorization.

●Prepared test cases and ran them for development of every component.

●Developed Data Access Object pattern to abstract and encapsulate data access mechanism.

●Used Oracle as backend database.

●Used JDBC for data retrieval from the database for various Queries.

●Implemented log-in authentication in oauth2 using Spring Security integration.

●Implemented back-end integration to MySQL database server using Spring JPA plugin.

●Implemented the payment gateway operation in the application for leads exchange and purchase transaction using Spring-Java Plug-in.

Environment: Java, J2EE (JSP, Servlets, JDBC), HTML/DHTML, PL/SQL, CSS, XSLT, XML/XSL, JavaScript, Struts Framework, EclipseIDE, Glass Fish, Spring Framework, Oracle 10g.

EDUCATION:

Bachelor of Engineering in Computer Science, St.Joseph’s College of Engineering, India.

REFERENCES:

Provided on request

Contact this candidate