Krishna B

Android Developer

Gmail:ada683@r.postjobfree.com

Phone no: 469-***-****

PROFESSIONAL SUMMARY:

•Over 8+ years of experience in Software development. Over 5 years as an Android application developer and 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, and JQuery mobile, Bootstrap, JSON, XML, Cordova and native Android.

•In-depth knowledge of Android (Java / Kotlin) and Android (SWIFT) technologies, Databases and Software Development Life Cycle

•Extensively used SQLite database for data storage.

•Experiences in web service using markup languages like XML, HTML/CSS, PHP.

•Having capabilities to distribute Android apps into Google Play and do in app purchase.

•Good knowledge in various industries including e-commerce, cloud, healthcare, energy and CRM

•Experience in Database Development using T-SQL, PL/SQL including Stored Procedures, Functions, and Triggers.

•In-depth knowledge of Android (Java / Kotlin) and Android (SWIFT) technologies, Databases and Software Development Life Cycle.

•Good experience in Object Oriented Design OOD, Analysis OOA and Programming OOP in past projects.

•Experiences in web service protocols such as RESTful and TCP.

•Extensive development experience using Eclipse, Netbeans, Notepad.

•Well versed with Source Version Control tools like Github1.3/1.5.

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

•Experience in developing Barcode scanning app.

•Program software using Android Studio, Java, Kotlin and Android frameworks.

•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.

•Studying Android Java/ Kotlin and developing my own Android applications on Kotlin. And I really like it!

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

•Experience in Struts and Springframeworks.

•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.

•Worked excessively on core JAVA / Kotlin / SWIFT concepts like polymorphism, inheritance, serialization, synchronization and exception handling.

•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.

EDUCATION:

Bachelor of Electronics and Communication Engineering

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,kotlin, 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, Kotiln,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

Operating Systems

Linux, Windows 10, Mac OSX, Android, Ubuntu

Web Services

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

Application Servers

Tomcat 5.5/6.0/7.0, WebSphere 6.0

PROFESSIONAL EXPERIENCE:

Client: Grant Thornton Oak brook Terrace, IL Aug 2018 - Till Date

Role: Sr. Android Developer

Description: Grant Thornton LLP (Grant Thornton) is the U.S. member firm of Grant Thornton International Ltd, one of the world’s leading organizations of independent audit, tax and advisory firms. Grant Thornton has revenues in excess of $1.9 billion and operates more than 50 offices. We’ve never been a typical professional services firm. We put people first, and that is what sets us apart.

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.

Client: PrimeTSR Chicago,IL May 2017 - July 2018

Role: Android Developer

Description: Prime TSR is a technology modernization consultancy In the simplest terms, this means that we create short and long-term, tech-based solutions that enable organizations to grow, compete and win in an ever-evolving technology landscape.

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 Zqooming 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, View models 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.

Client: Best Buy - Minneapolis, MN Jan 2016 - Apr 2017

Role: Android Developer

Description: The Best Buy Gaming app allows to shop the best video game deals Best Buy offer. It also allows building game library, so that user can easily track the video games to trade-in. Also, user can shop the newest video games right from the device, or find the nearest store location.

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.

Client: Citi - Irving, TX Mar 2014 - Dec 2015

Role: Mobile Application Developer

Description: The Citi Mobile is a mobile application designed for its customers. With the Citi mobile application customers can keep control of accounts, virtually anytime, anywhere and customers will gain access like resetting debit card PIN or locking a misplaced credit card from everyday account activities helping customer to track spend, check recent activities and balances, make payments, mobile check deposit, etc.

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 adblogcat, 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.

Client: JOBSME - Hyderabad, Telangana Dec 2012 - Feb 2014

Role: Java/J2EE Developer

Description: This one best application providing job to skilled people who want to work. Through our app the employer can post work like plumbing, carpet, flooring etc. the worker can get push notification once employer post a job. And these workers can bid the job how much they can complete the task. Finally, employer can pick one skilled person to assign the job. Employer can pay money through our app. We implemented Braintree payment gateway I used to complete payments to workers.

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.

Client: Auto Insurance - Hyderabad, Telangana Jan 2011 - Nov 2012

Role: Java Developer

Description: AFE (Agent Front End) used by the Commerce Insurance's agents to create quotes and to generate the coverage for the personal auto insurance. Using this application agents enter the information of insurance holder, vehicles and drivers. The back-end system generates the quote. And this application allows the agent to create coverage using the generated quotes. Along with generating quote there is a portal where authenticated customers can file a claim, make payments, view payment history, search for nearby agents. Processing of a claim was done using asynchronous messaging system.

Responsibilities:

•Designed, developed and documented the software design using UML

•Developed servlet programs to transfer the control to other pages depending on the business logics

•Used XML for the modules

•Created JSP pages for the results

•Wrote the required SQL queries and used JDBC to interact with the database.

•Developed the front-end using HTML, XML, JSP, Servlets, JavaScript, and interactive JSP pages.

•Front-end validations using Java script for HTML, extensive use of CSS.

•Used AJAX to improve the performance of application.

•Servlets are used to get the information from request, response and pass it to view dispatchers and other controls as needed.

•Action classes and handlers for processing the messages and passing it to various other applications are done through STRUTS, as it requires higher level of abstraction.

•Coded server side components using Eclipse 3.x.

•Implemented Database interactions using JDBC with back-end Oracle 9i.

•Wrote and executed Stored Procedures on the Back-End using SQL and PL/SQL.

•Wrote Generic SQL queries for retrieving data from Database.

•Developed Listener classes that receive the information from JMS Queues and extracted data from the XML files and save the data in the Oracle database.

•Used VSS for team application development & Version Control.

•Exported packages and stored them for backup and recovery.

Environment: Java, JSP, JMS, JDBC, Java Script, Eclipse IDE, SQL, PL/SQL, XML, HTML Oracle 9i, AJAX

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