Dheerajkumar Haritheesan

Senior Android Developer

Phone: 857-***-****

Summary

* *****’ experience in Java, standard industry design patterns, and Object-Oriented Programming

Experience in optimizing performance and memory usage of Android Apps

Experience with multi-threading, integration with REST and SOAP APIs, custom view animations and transitions, and producing reusable libraries

Strong knowledge of Android SDK, core java different versions of Android, and how to deal with different screen sizes

Familiar with working on geo-fencing, google map integration, background, foreground services

Proficient in designing, wireframing, and implementing UI/UX

Offshore/Remote team collaboration and management experience

Mentoring Jr developers by analyzing code via code request to ensure best practice been followed

Experience with the entire Software Development Lifecycle conducting and implementing applications from conceptualization to publish apps

Key Skills

MVP/MVVM/Singleton/Builder/Façade Architectures

Glide/Picasso/ExoPlayer/VideoPlayer

Testing/TDD/BDD/Code reviews/Junit/Espresso/Mockito/Powermock

Activities/Content Providers/Services/Broadcast Receivers

Certificate pinning/Android Keystore/Cipher/AES/RSA

Kotlin/Data Classes/Sealed Classes/Extension Functions/Coroutines

Retrofit/RxJava/GSON/Json/Moshi/Http URL Connection

SQLite/Room/MySQL/SharedPreferences/File Provider

Firebase/AWS/Push Notifications/BLE

Jira/Jenkins/Bitbucket/Git/Git lab

Work Experience

Kaiser Permanente

Location: Boston, MA Dates: August 2019 – Present

Sr.Android Developer

Work on a shared library that allowed patients and health care specialists to talk to each other through video conferences. The shared library then had to be integrated into Kaiser Permanente Washington to allow patients to click on an appointment card which then gave them the option to launch the video visit within the app itself. Users also had the ability to click links they received through emails and text messages to launch the video visit.

Android app:

https://play.google.com/store/apps/details?id=org.ghc.android&hl=en_US&gl=US

Worked in an Agile environment with 5 Android developers, QA testers, UI/UX designers and backend developers.

Run meetings with product owners and scrum masters on a daily standup meeting.

Collaborated with deep link integration across multiple functionalities inside the application.

Tokenize authentication has part of the Launch Meetings conference feature.

Closely collaborated with backend developers to integrate security measure with deep link interactions.

Created Sequential Diagrams has part of documentation to clearly visualize the stages of the application.

Updated onboarding documents for KT effort exemplifying Android deep link process.

Participated in PR approval team, enforcing a code coverage around 80% for the Android App.

Working closely with dev piers to follow SOLID principles and utilized tools like Jacoco to keep track on code coverage.

Implemented material design components and debug and track with UI/UX designers to implement pixel perfection layouts.

Worked with QA developers and implement Apache Server to execute extensive automation test.

Liaise has a point of contact to the offshore teams, tackle blockers in every sprint cycle and resolve communication barriers with non-technical colleagues.

Worked with testing libraries and frameworks: Junit, Espresso, Mockito, Robolectric

Refactored code base to make use of observable design pattern.

Implemented Google Archictecture Design patterns with MVVM + repository layer.

Utilized state-of-the-art technologies like Lifecycle components ViewModel and LiveData.

Grasshopper

Location: Boston, MA Dates: March 2019 – August 2019

Sr.Android Developer

Grasshopper customers can now run their businesses from anywhere with the new Grasshopper Android app:

https://play.google.com/store/apps/details?id=com.grasshopper.dialer

Worked in an Agile environment with a crossover team including iOS developers, Android developers, QA testers, UI/UX designers and backend developers

Implemented custom SDK to perform VoIP using android call application

Actively participated in daily scrums meeting behaving has a point of contacts with offshore teams to clarify milestones and increase efficiency on pending work

Executed meetings with UI/UX to clarify uses cases on rebranding effort and translate requirements to technical efforts

Enforced UI interactions to follow Android Material Design and apply best practices

Establish process and standards for code deployment and test coverage, applied Bambu scripts to automated builds with multiple test cases

Created custom views to be incorporated across multiple features in the project

Developed Settings Feature to incorporated Navigation Drawer component along with fragments to define user interaction and customize application configurations

Debugged closely with backend teams an issue when app settings weren’t reflected trough middleware endpoint

Implemented Observable pattern to reduce application memory consumption and facilitate readability decoupling app modules

Worked on a MVVM Architecture Design pattern using observables and data binding connections between modules

Created Repository pattern to abstract connections between local databases and remote endpoints

Refactored Java code with Kotlin implementations like companion objects and Singleton objects

Interacted with default Content Providers as Contacts Providers to facilitate user interaction with local user contacts

Created Searchable Activities to efficiently utilize contacts locally in user device

Worked on prove of concept to incorporated previous and favorite contacts navigation

Implemented Coroutines to asynchronously fetch new Contacts Mobile data, which will contain new features from backend endpoints

Created easy to identify status bar with the last updated date and time to the messages and also incorporating call history screens according to specs

Accomplished several unit test cases along the application using jUnit and Hamcrest assertions, created mocks and verifications of classes and interfaces

Consolidated Instrumented Test cases with QA tester to closely executed inside of the application using Espresso and Roboelectric tools

Humanity

Location: San Francisco, CA Dates: June 2018 - March 2019

Sr. Android Developer

The Employee Scheduling app helps employees stay in the loop and connect more easily with their workplace and colleagues:

https://play.google.com/store/apps/details?id=com.humanity.apps.humanityV3

Refactored several callbacks implementation from old MVP design pattern to excel the use of RxJava schedulers

Participated on Architecture Design Pattern migration from MVP to MVVM, reducing and consolidating code to make use of Android Ktx plugin

Reduced learning curve on Kotlin language by creating multiple training materials and balance current sprint work with mentoring developers’ piers

Worked on a distributed version control system and handled branching strategy to effectible track working effort and increase production during the sprint cycle

Collaborated on a Agile methodology with 2 weeks of sprint cycle and 1 week of retrospective

Helped to create scripts on groovy language to be possible to execute in CI/CD tools like Jenkins

Participated in reviewal team to monitor smells and code quality along with the enforcement of code coverage using Jacoco tool

Integrated push notifications messages with cloud tool Firebase to populate new updates on schedules for ShiftPlanning feature

Debugging push notifications on ShiftPlanning feature that forbids user to properly see updates from managers accepting the new schedule using DebugView events

Created abstract classes to define common behavior across the application and utilizing extension function from Ktx plugin we consolidate common operations like getCurrentTime and parseDate

Constructed several custom views to reduce the burden of multiple fragments across the application

Helped to generate the object graph and elaborating @Binds, @BindsInstance, @Providers, @Scopes and @Components

Debugged missing bindings on dependency injection tool and track properly solutions to inject constructors

Participated in pair programming to reduce learning curve on new Kotlin language implementation

Elaborated pull request that reflects sprint effort in Jira bug tracking system

Hollar - The Online Dollar Store

Location: Santa Monica, CA Dates: August 2017 - June 2018

Sr. Android Developer

Bring the fun and addicting dollar store experience straight to your phone:

https://play.google.com/store/apps/details?id=com.hollar.android&hl=None

Worked on an Agile environment with 5 Android developers and interacted with backend developers

Created pull request that matches expected quality code that follows SOLID principles

Helped other developers to decompose and refactored code to follow SOLID principles patterns

Worked with new ConstraintLayout to positioned elements accordingly to design, and created chains and guidelines to make the application more appealing

Integrated search patterns and search activity interaction inside the application

Debugged network calls to reflect correct consumption of data using Postman, Swagger and Charles Proxy API

Refactored networking calls using Retrofit Api to enqueue and reflect changes from a worker thread into the main thread

Implemented Certificate pinning to mask endpoint calls during login feature procedure

Collaborated on ItemsCart feature to selectable collect items from user preference to prepare payment process one and initialize purchase process

Closely debug with UI designers to achieve pixel perfect layout on list of views using Recyclerview with customize Item Separators

Implemented abstract view holder pattern to support headers and multiple layouts in RecyclerView

Elaborated comparable algorithm according to design to simplified choose elements and facilitate decision from user

Implemented customize fast scrolling with custom drawables and fastScrollEnabled property

Participated on branding implementation to create a more appealing layouts and define new acquisition strategy inside the application

Integrated Exoplayer with a customized layout to help users to identify products with videos where applicable

Created background operations with Android JetPack components WorkManager to in a period of time check updates on items

Worked on a TDD methodology applying Red-Green-Refactor to increase code stability using multiple tools like jUnit, Mockito and PowerMock

Worked with the implementation of federated login like Google Sign-in capabilities to give more options to interact with the application

Whole Foods Market

Location: Austin, TX Dates: August 2016 - August 2017

Sr. Android Developer

Get the most out of every shopping trip with the Whole Foods Market app:

https://play.google.com/store/apps/details?id=com.wholefoods.wholefoodsmarket

Code user story ‘Browse weekly sales at favorite location to find the latest deals on the products’ completely from scratch

Designed alternative UI and improved payments options for prime members product flavor

Browse weekly sales at your favorite location to find the latest deals on the products

Incorporate Crittercism library and Google Analytics to send real-time, actionable crash reports and collect user engagement data to the backend

Implement Amazon In-App Purchasing API to enable purchase digital content and subscriptions for purchase within apps on Amazon Appstore

Refactored legacy codebase, architected the project using MVP and widely applied code reusability using dependency injection libraries (Dagger2, Butterknife)

Use Android Studio, Java, AsyncTasks, Google Maps, RESTful, JSON, SQLite, Servlets, Tomcat, MySQL, SVN, 9Patch

Generate a downstream logic to communicate the servers with the phones using Google Cloud Messaging (GCM)

Closely work with the testing team and used developer testing tools like Robolectric

Implement Recyclerview-animator’s library to increase the attention of the user and easily implement multiple animations across the project

Communicate with Amazon Web Services (AWS) for secure cloud services platform, database storage and content delivery using IntentServices and AlarmManager API

Check Android quality control using PMD, Findbugs, Checkstyle, Gradle and Jenkins reports

Take ownership of and address tickets raised by QA, UAT from Jira

Participate in an agile technical team across UI, Front End and Back End responsibilities

Snag

Location: Glen Allen, VA Dates: September 2013 - August 2016

Android Developer

Snagajob is the #1 free, easy job finder app to find part-time jobs and full-time jobs, make job applications easier, get great career advice and more:

https://play.google.com/store/apps/details?id=com.snagajob.jobseeker

Save search and get email updates when new jobs are posted that match in search

Consumed web services with a Volley client to support for request prioritization and strong ordering that makes it easy to correctly populate your UI with data fetched asynchronously from the network

Search for local job openings and have Daily Job Matches sent directly to user phone

View job application status updates on jobs that user have applied to

Included Moshi library for built-in support for reading and writing Java’s core data types

Apply to jobs with just one click by using Snag profile

Perform 80% integration testing using Robolectric framework

Improved user interface by adding AndroidSlidingUpPanel component foe draggable sliding up panel and circular ImageView in list view

Find jobs hiring in user area using map search feature

Created a Snag Widget on home screen to show the latest offers according to users’ geo-location

Incorporated contacts, calendar, gallery device specific content-providers and build custom content providers to share data across processes

Replaced old SQLIte database with Realm to include difficult-to-build features like two-way data sync, realtime collaboration, persist with lightweight transactions and query using fluent interfaces

Modularized the code by using Dagger 2 dependency injection library to decouple the classes, to make the code easier to test and maintain with no hard dependencies

Implemented Bolts Framework to perform branching, parallelism, and complex error handling, without the spaghetti code of having many named callbacks

Education

University Attended: California State University Northridge

Degree Obtained: Bachelors Computer Science

Contact this candidate