Jan 2019 – Dec 2024 · 5 yrs 11 mos · London, United Kingdom · Remote

• SDK: Tappa Android Keyboard SDK
• Forked the Android AOSP Keyboard codebase into a distributable SDK
• White-label solution allows brands to develop their own custom keyboards
• Packaged as a library artefact (AAR) and published on Nexus repository manager
• Migrated build scripts to Gradle and implemented automatic deployment
• Add a high-level Kotlin interface to the existing Java code base
• Added UI customisations and fixed bugs in the original codebase
• Wrote most of the integration and setup documentation used by 3rd party clients
• SDK: Tappa Monetisation SDK
• Developed & architected the monetisation SDK which suggests products and brands to users
• Privacy focused solution ensures user data and searches are kept local
• Data for searches are downloaded efficiently in the background and synced to the local
• database using AndroidX Work Manager
• Local database is a custom SQLite implementation using Requery with FTS (Full Text Search)
• Custom search using SQLite + FTS4 & FTS5 extensions for word stemming
• UI components are built using a mix of XML and Android JetPack
• Library: Spellfix1 - full-text correction and spell check
• Library: Stemmer - word stemming and word suggestions
• Library: Machine Learning - integrate custom TensorFlow models to provide search suggestions
• Ported to Kotlin Multi-platform so it could be used on iOS
• App: Keymoji Android Keyboard
• AI-powered keyboard which integrates the Tappa SDK
• Multi-module Android project
• Built UI components such as the search suggestions chat using Jetpack Compose
• Integrated with the ChatGPT API using HTTP REST API
• Implemented themes with the ability to change keyboard colours
• Download of custom content such as stickers, GIFs and videos
• Architected using MVVM and Dagger2
• Apps: Branded Keyboard Apps using Tappa SDK
• Framework: Android Build Environment - custom Docker container to build frameworks and apps
• App: Mocha Android SDK Test for automated testing
• App: Rapid SDK for contact tracing

Jan 2017 – Dec 2018 · 1 yr 11 mos · London, United Kingdom · Hybrid

• Draewil is a delivery logistics company based in Kuwait. I was the first person hired by Draewil and led the Android team and later the iOS team.
• Interviewed, hired and onboarded new mobile developers, for both Android & iOS
• Built Continuous Integration & Delivery pipeline using Jenkins for rapid app deployment
• Lead and managed a team of remote Android developers
• Developed three Android apps, written from the ground-up in Kotlin
• Established MVVM architecture as the standard to use across all apps
• Extensive unit tests for the models and view models using JUnit and Robolectric
• All apps are built using Android Studio and the Android SDK
• Developed build scripts using Gradle for building and publish apps
• Implemented Jenkins build pipelines to develop and deploy apps automatically
• Deployment of apps to Crashlytics Beta and Google Play Store
• App: Android Driver App
• Used for hailing drivers and by delivery drivers to navigate and complete their jobs
• Live job updates using websockets and multi-point deliveries
• Had to work on low-end cost-effective Android devices
• Live driver location tracking using GPS and location based services
• Fetch and display of delivery routes using Google Maps and Routes
• App: LaunchDeck App
• Tablet only app used by enterprise customers such as restaurants to request deliveries
• Handles a high volume of delivery submissions and updates
• Uses a queuing system to schedule and manage deliveries
• App: Consumer App
• Consumer facing application used to order deliveries such as foods
• Can also be used as a ride-hailing service to request taxis
• Worked closely with the design team to create the UI/UX for the app
• Translate Figma designs into Android User Interface components

May 2015 – Dec 2016 · 1 yr 7 mos · London Area, United Kingdom · On-site

• App: Yubl Social Media Application - a new way to connect with your friends using interactive stickers, text, audio and video
• Joined the team as an Android developer and got promoted to team lead
• Re-architected the existing Android application
• MVVM - Separated the data model from the UI
• Resulted in an extremely responsive application
• Fixed memory leaks
• Maintenance of code and adding features is easier
• Custom components and views for sending stickers
• Integrated voice functionality
• Android NDK development

Oct 2014 – Mar 2015 · 5 mos · Cosham, Hampshire · On-site

• App: Co-op Young Driver - branded app integrating Core telematics framework with custom design
• Sole developer of the Android app, compatible between Android 2.3 up to Lollipop.
• UI development using XML layouts, including complex layouts and custom animation.
• Integration with the core telematics framework, which monitors driving in the background.
• Google Maps integration - for display of journeys and event markers
• Library Framework: Core driving telematics framework
• Modernised and migrated the core framework from Eclipse to Android Studio
• Migrated the codebase from Subversion to Git
• Refactored auto-start recording functionality to check if driving has started
• bluetooth checks and wifi checks
• in-car activity recognition using Google Play Services
• battery efficiency optimisations
• Improved documentation for the team
• Stabilised and fixed bugs the initial app setup used by all branded insurance apps

Dec 2013 – Sep 2014 · 9 mos · London Area, United Kingdom · Hybrid

• App: CrowdScores - live football scores with ability to report goals in real time to earn points and win
• prizes
• Developed the Android app and published it to Google Play Store
• Build variants - development, live and staging for side by side testing
• Live score updates using HTTP polling
• Background downloads - synchronize match data
• Comments - fans can comment on matches
• Location tracking - locate nearby matches and stadiums
• Custom UI widgets - e.g. sticky list headers, slider button to report goals, animated menus
• Unit tests - for the core business logic
• Interviewing and hiring permanent Android developers

Nov 2013 – Dec 2013 · 1 mo · Remote

• App: iKettle Android app - remote control of hardware kettle over local WiFi network
• Communication - over local WiFi network using sockets and AT commands
• Setup Wizard - using AdHoc wireless, custom UI for the main screen
• Auto-detect - the kettle local WiFi network by subnet scanning
• Background services - detect when the user enters their home to automatically boil the kettle
• Notifications - when the water is boiled or water is too low
• Alarms - wake up alarm in the morning
• Custom ringtones for notifications

Dec 2012 – Jun 2013 · 6 mos · London · On-site

• App: O2 Tracks (BlackBerry) - branded music player app
• Java and MVP architecture
• Scheduled music downloads in background
• Music playback
• Custom UI based on provided designs
• User subscription management

Feb 2011 – Present · 15 yrs 3 mos · United Kingdom

• Mobato is my company through which I deliver contract Android application development services.

Jan 2011 – Aug 2012 · 1 yr 7 mos · Watford, England, United Kingdom · Hybrid

• App: Core by Corethree - general mobile ticketing app with server driven UIs
• White-label apps: - mobile ticketing apps branded for clients such as bus companies
• Key Achievement: The BlackBerry app I developed was deployed to over 1,800 employees at a travel
• company. After a successful trial deployment it helped CoreThree secure a contract for providing a
• mobile ticketing solution to the company.
• Common shared library for use in all apps
• Custom views and UI development
• Mobile ticketing solution to replace paper tickets
• Local database
• QR code scanning
• Location based services for recommendations

Feb 2009 – Dec 2010 · 1 yr 10 mos · Winchester, Hampshire · On-site

• 7digital Music Store on BlackBerry, winner of the BlackBerry Partners Fund Developer Challenge in San Francisco in 2009
• Looxcie bluetooth mobile video recording headset app

Oct 2008 – Jan 2009 · 3 mos · Woking · On-site

• Carrier embed program: porting internal/external game projects; custom framework reduced the time for creating embeds and the need to modify project source code.

Aug 2007 – Sep 2008 · 1 yr 1 mo · Remote

• JarMerge Tool: merges two jar files into a single jar without source code at the Java byte code level.
• Games – Blockbusters 2, Gomoku (5-in-a-row), Checkers

Jul 2006 – Jul 2007 · 1 yr · Eastleigh