Al Lossada

Senior Android Developer

412-***-****/ adhhvh@r.postjobfree.com

OBJECTIVE

Innovative Senior Android Mobile Application Developer with 8+ years of experience designing, developing, testing, and maintaining Android applications with 50K+ downloads, looking for new Corp-to-Corp (C2C), Contract-to-Hire (C2H) and 1099 Contractor project opportunities in the mobile space.

SKILLS

Architecture

MVVM/ MVP

Kotlin

Java

NDK

MixPanel

Google Home

Google Assistance API

Play Services

Android Keystore

Retrofit

SQLIte

FSM

BLE

WiFi Protocols

ExoPlayer

Material Design

Zeplin

TDD

BDD

Mockito

Espresso

Firebase

Robolectric

AWS

JetPack

LiveData

VOD

Bluetooth BLE

OAuth

AES

Encyption

Dependency Injection

Butterknife

Reactive Programming

RxAndroid

Agile

Scrum

XP

Push Notifications

Patterns

Instrumented Tests

RESTful Web Services Consumption

Bitbucket

GIT

GitHub

GitLab

SV

Jenkins

MVC

SOLID

OOP Design

Unit Testing

Multithreading

Jira

OAUTH2

ZXing

CARD.IO

Stripe

PayPal

Waterfall

AsyncTask Loaders

Coroutines

RxJava

SUMMARY

Familiar with OOP design patterns such as Façade, Abstract Factory, Builder, Singleton, Observer, MVC, MVP, MVVM, Protocols & Delegation, etc.

An understanding and ability to exploit Android features and APIs (Background services, notifications, location, etc.)

Team player with the ability to work autonomously and in different set of teams, from large to small deployment

Familiarity with Java, Android Studio/Gradle, using multiple target environments and deploying apps to the Play Store

Experience of writing & maintaining unit tests; mocking frameworks and enthusiastic for test-driven development

Experience developing video playback technologies

Ability to work with UI/UX designers and also interacting with back end developers

Experience of BDD and TDD. App signing, rich UI development, HTTP, JSON, XML, SSL security, sockets, Wi-Fi, Material Design principles Agile development using JIRA

An understanding of Android Auto, Android TV and Google Home API with third-party analytics services

Experience designing for Tablets and other big screen devices in Android

A firm understanding of building Android mobile applications that utilize web services (REST, HTTP-based, XML, SOAP, JSON or other services)

Experience developing highly efficient Java code and view layouts and the ability to diagnose performance bottlenecks in Android development

Self-motivated and proactive with demonstrated creative and critical thinking capabilities

EDUCATION

Bachelor of Science in Computer Engineering

Florida International University School of Engineering / Miami, FL

CONSULTING PROJECT EXPERIENCE

Branding Brand / Bed, Bath & Beyond / Pittsburgh, PA

Sr. Android Developer

September 2019 – Present

Apps: Bed Bath and Beyond / Bed Bath and Beyond Baby

https://play.google.com/store/apps/details?id=com.bbby.bedbathandbeyond

https://play.google.com/store/apps/details?id=com.bbby.buybuybaby

Implemented material design driven Views to for all UI design changes.

Made sure design was up to date with what is currently relevant in the Android world.

Organized and managed styles and themes to collisions and code reusability amongst other developers.

Helped React Native developers create plugin functions in Android app to fetch information for the React side.

Used Git and GitHub for version control and followed branching strategy for features and issues.

Worked closely with designers providing feedback to promote a Native Android User Experience.

Used Adobe Omniture and Firelytics APIs to handle analytics tagging.

Used Firebase to create and enable app’s deep links and existing ones.

Worked closely with QA to fix introduced bugs and implement solutions for old ones.

JPay / Miramar, FL

Sr. Android Developer

March 2019 – September 2019

Apps: Lantern App / KA Lite / Ashland (private distribution only)

Manage the development of Android educational apps for prison inmates, leveraging prison-hosted Windows Kiosks, Wi-Fi and RESTful API calls/consumption. Given the nature of the app, security is essential. Work on many tasks involving encrypting downloads and implementing file signature to files to mitigate tampering.

Agile framework with daily SCRUMS

Worked more on a release base deadline than by sprints

Team consisted of 2 .NET developers, 1 android developer and 1 QA

Worked on JPay’s Lantern, Ashland app and KA Lite (Khan Academy)

Included Wi-Fi functionality to Lantern App

Handled large amount of sequential file downloads through a local download manager

Interacted with exposed Canvas Student APIs

Updated UI and UX with help of a designer

Implemented themes and styles to pertain to android material design standards

Created new features from scratch using android jetpack components

Worked closely with QA to ensure product quality

Refactored old code to decouple views from business logic using MVVM

Performed pair programming with tech lead to debug issues

Used postman to test calls prior to implementing them in android

Used collaborator and bitbucket to perform and assign code reviews

Used git has a source control

Worked on a custom android ROM with security restrictions

Tablet used was custom made, JP5

Worked closely with the support team to fix bugs and crashes

Improved background processing time by implementing concurrent threading libraries such has RXJava

Implemented solution for large downloads via a URL through the Retrofit library

Implemented file signature using a platform service to ensure file download authenticity and integrity

Worked on a script that changed the file permissions of a folder’s content periodically in the tablet’s internal memory to allow for open accessibility amongst apps

CVS Pharmacy / Scottsdale, AZ

Sr. Android Developer

August 2018 – March 2019

App: https://play.google.com/store/apps/details?id=com.caremark.caremark

Support troubleshooting and debug applications, working with the testing team to optimise application performance. Ensure projects are delivered on time and to a high standard. Take part in code reviews for other developers. Contribute to continuous improvements in the team resulting in greater efficiency, quality, and productivity. Develop and produce functional solutions in accordance with architecture design standards and code standards.

Help with migration of code from Angular to Native Android Kotlin language

Employ tagging using adobe tagging for business analytics on app usage and marketing information

Refactor spaghetti code with new JetPack architectural principles using ViewModel, LiveData MVVM components and participate in architecture reviews

Locally store prescription history in Room database with Account Information; shipping and billing information, manage family access, and reset password

Create Observables/ flowable/Single sources, subscribing, disposing, multi-threading using schedulers and avoid API calls memory leaks using RxJava library

Remove UrbanAirship and replace with Firebase push notification services to send daily walk reminders to users

Polish the magnets feature and adding analytics tags

Handle code merger and image manipulation from other developer in photo project to release branch at the end of sprints

Use CVS API’s to translate strings, handle location services and post customer information to CVS servers using Reactive Programming and Retrofit libraries

Create flows for new photo products, refactored and debugged old code to use up to date coding standards in photo

Work with third party API called Snapfish to handle with information exchange, photo orders and ids

Solve ANR crashes om the new release

GEICO Mobile / Woodbury, NY

Sr. Android Developer

April 2017 – July 2018

App: https://play.google.com/store/apps/details?id=com.geico.mobile

Participate in technical and design discussions with technical executives at strategic partners to speed up adoption and ensure best practices during implementation. Participate in fast-paced development cycles; have completed 100% of deadlines ahead of schedule. Work proactively to remediate adverse customer experiences. Assist with the deployment of Android application code to multiple package targets.

Independently work on “Request roadside service” and “Pay and mage bills” User-story in consult with Tech lead

Work on paid product flavour using Kotlin Default and named arguments, model classes, delegates, Smart cast, Data class and Extension functions

Integrate Urban Airship in new features for messaging and content delivery, including Push Notifications, Rich Media Messaging, In-App Purchase and Subscriptions.

Refactor View layer with new Architectural components from MVC using lifecycle aware components and Room database with SQLCipher encryption

Upgrade to PayPal Braintree's Android SDK to accept card and alternative payments to pay & manage bills for car insurance

Authenticate users via fingerprint scan and implement the user interface for the fingerprint authentication flow for new insurances

Work on AndroidWatch module to display notifications and send data from phone

Heavily code using ReactiveX for asynchronous programming with observable streams for API’s using flatmap, filter, zipalign, map transformational

Encrypted ID card details in Android Keystore system to store cryptographic keys in a container to make it more difficult to extract from the device

Work in Test-Driven Development to write test cases in Pay Bills ViewModels and automated UI test using Espresso for View Policy feature

ParkMobile / Atlanta, GA

Sr. Android Consultant

June 2016 – March 2017

App: https://play.google.com/store/apps/details?id=net.sharewire.parkmobilev2

Collaborate daily with the offshore implementation team. Monitor the app post-release to ensure that it is working as expected. Collaborate with the wider team (developers, analysts, product owners, etc.) to produce acceptance criteria for user stories, providing technical and domain expertise to help drive decision-making. Work proactively to remediate adverse customer experiences.

Emphasize business logic and leave framework details under the hood, address separation of concerns using Uncle Bob clean code architecture

Perform migration from GCM to Firebase push notification services to send notifications to tell when a paid parking will expire

Incorporate ThreatMetrix External SDK detect any breaches to the host application, Strong Device Identification and Send events showing high-risk signals to Firebase backend cloud database

Independently work on Card.io credit card scanning library integration to Pay for parking and reservation

Map parking spots on Google Map with Clusters API, find the best parking spots and get car location with Google Play services Location API and GeoCoder API

Pair Program to perform password reset, verify email, and recover email using Firebase API

Define API contracts and develop against stubbed/mocked end-points with Mockito with additional beta testing using Google Cloud testing mechanism

Use RxPS, RxJavaPriorityScheduler Scheduler library in Reactive environment to parse multiple streams of data concurrently

Replace Google Analytics with Firebase SDK for push notifications, Analytics, Crash Reporting and Authentication services

Create Schedulers mock using RxJava TestScheduler in unit tests and trigger TestScheduler to drive function behaviour as expected

Expose data via a Content Provider using Room to access contacts and gallery

Migrate SQLIte database to Realm 3.0 local caching database to store parking expenses, parking data and account information

Tile / San Mateo, CA

Bluetooth Android Developer

April 2015 – May 2016

App: https://play.google.com/store/apps/details?id=com.thetileapp.tile

Work together with the designers to enhance the application for the Android platform, focusing on continuous improvement over time. Improving test coverage, procedure and documentation. Write and maintain existing unit tests (TDD). Help drive efforts to adopt BDD.

Conduct meeting with vendor to integrate Branch SDK in the app to increase mobile conversion, retention, and engagement through deep linking and user routing

Work on Generic Attribute Profile (GATT) protocol BLE technology to connect Tiles with Bluetooth 4.0 compatible devices

Work around BluetoothAAdapters, BluetoothServices, Oral B UUID Characteristics with BroadcastRecivers, EventBus and IBinder interface

Resolve camera, location, external storage dangerous level permission to target Android M version and above

Work on Fused Location API Services to record the last known location of Tiles, based on your phone’s geo -location data

Use NDK to reuse native-code libraries written in C/C++languages to communicate with base Bluetooth framework classes

Use Espresso for instrumentation testing using Assertions, Matchers and Actions for 80% view code-coverage

Work on Google In-app Billing and Amazon in app purchases to provide checkout processing for to renew memberships and buy tiles

Conduct code review activities with the members of the development team using Collaborator tool

Create Dagger components and subcomponents to inject the needed dependencies into different Android app fragments, view models and components

Conduct integration testing with Robolectric framework and behavioural testing with Robotium framework

CBS Sports Fantasy / San Francisco, CA

Android Developer

August 2014 – March 2015

App: https://play.google.com/store/apps/details?id=com.cbs.sports.fantasy

Ensure the performance, quality, and responsiveness of app and server. Collaborate with team to define, design, and ship new features. Identify and correct bottlenecks and fix bugs. Help maintain code quality, organization, and automatization.

Work in MVVM architecture using Data Binding Library to bind UI components in layouts to data sources in using a declarative format with one-to-many mapping between various Views and one View Model

Create customised compound view with Listview headers to display League standings and power rankings

Download XML Weekly matchup recaps data, Scoring previews and Player profiles data from backend using Jackson Parser with Volley library

Perform static code analysis using PMD, Findbugs, Checkstyle, Gradle and Jenkins reports

Work in XP environment to authenticate users, sync profile data with Amazon Cognito Sync and Transfer files with Amazon S3 Transfer Manager

Work with Conviva SDK for improved quality of experience (QoE) and video-streaming quality

Incorporate the tab navigation using the View Pager Indicator third party library

Replace old video view with ExoPlayer API for QVC's video streaming media protocols: HTTP Live Streaming (HLS), RTMP and RTSP

Download and cache remote images in a memory efficient manner using Fresco Facebook library

Independently work on Depth charts, roster trends, and player projections user story

Mango Health / San Francisco, CA

Native Android Mobile Developer

July 2012 – March 2014

App: https://play.google.com/store/apps/details?id=com.mangohealth.mango

Work closely with designers, API developers and iOS techs in an Agile/Scrum environment. Fix bugs and improve application performance. Build scalable apps across multiple platforms and devices/resolutions. Liaise closely with the designers to improve and enhance UX/UI. Use Zeplin for vector clickables.

Configure GCM server for push notifications to send advance warning when it’s time to order a refill

Create a custom view with onLayout, onDraw and onMeasure methods to display date and set custom reminders to drink water, record mood, check blood glucose and take your blood pressure

Parse medical history logs json data from backend using AsyncTask and display in ListView with view-holder pattern

Implement a WebView control to reuse some legacy web application functionality

Communicate with Google Contacts API to create new contacts, edit or delete existing contacts, and query for contacts that match particular criteria

Code in MVP architecture with FasterXML Jackson serialization and configuration framework converter; with eventBus to communicate with different presenters

Implement beta test coverage, distribute beta versions, collect live crash reports, and get feedback from real users using Hockey App

Develop the ability to scan QR codes within the application using the ZXing Library

Add the use of Google Wallet payments to buy products and unlock advanced features

Add Interceptor-builder.cacheControl to force caching of network request for max-age=3600

Work with Google GData client library to access Google APIs using JSON and OAuth 2.0

Implement multi-language support using XML for simple menus and web services

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