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2
jobs
Android development with Kotlin and Java
Geoff Day
,
Corsham, United Kingdom
Experience
Other titles
Skills
I'm offering
Android app designer and developer, specialising in mobile-to-web communication but available for all contract Android development roles. Experienced in the full lifecycle of app development, from system architecture, back-end integration and user interaction design through to implementation and testing. Excellent technical and team skills built up over 25 years' experience in software design and implementation, from early desktop to current mobile devices and web services. Deep understanding of full commercial project lifecycle, learnt through running contract software businesses.
Markets
United States
(Remote
only)
United Kingdom
Germany
(Remote
only)
Lithuania
(Remote
only)
Denmark
(Remote
only)
Norway
(Remote
only)
Sweden
(Remote
only)
Finland
(Remote
only)
Links for more
Once you have created a company account and a job, you can access the profiles links.
Language
English
Fluently
Ready for
Larger project
Ongoing relation / part-time
Full time contractor
Available
My experience
2018 - 2019
freelance
Android developer
Good Energy.
Working remotely as part of a small team together with iOS developers, testers and a UX/UI designer we replaced a legacy app. We replaced Java with Kotlin and implemented an MVP architecture. I also set up PR (BitBucket) and CI (Bitrise) processes, including running automated UI tests on CI (Cucumber and Appium). The app used extensive communication with a number of backend servers (using Retrofit and OkHttp), and custom UI controls.
Java, Kotlin, Mvp, Dagger, Rxjava, Mockk, Appium
2018 - 2018
freelance
Android developer
Dyson.
Part of a close team of Android, iOS and cloud developers, testers, UI designers and scrum facilitators. Adding new features to the Dyson Link app to support new products. The app uses MVVM architecture, and multiple modules and flavours. The development cycle is supported by the Atlassian suite (Jira, Bamboo, Stash, Hipchat). Hardware interaction used Bluetooth Low Energy at characteristic level and MQTT.
Java, Kotlin, Dagger, Rxjava, MVVM, Data binding, Mockito, Robolectric
2017 - 2017
freelance
Android developer and tester
Xing AG.
Worked within a large distributed team, responsible for the re-development of a major section of the client’s app using strict MVP architecture. Also ported existing Cucumber (Calabash) tests from the iOS app to Android. Extensive use of the back-end cloud API using background tasks. Thorough unit test coverage of the logic (presenter) layer using Mockito.
Java, Kotlin, Mvp, Dagger, Rxjava, Mockito, Cucumber, Calabash
2017 - 2017
freelance
Android developer
Radiodetection Ltd.
The client manufactures specialist hardware with both Bluetooth Classic and Bluetooth Low Energy capabilities and needed an Android app to communicate with it. The app was also required to interface to a web REST service and a local Realm ORM database. There was an existing app but it needed overhauling to increase reliability and add features. Designed and developed a new architecture using modern Android development practices including Rx, Dagger, Retrofit, OkHttp, Material Design and automated stress testing, together with direct use of Android APIs for Bluetooth connectivity. Saw app through Play Store deployment from beta to fully published.
Java, Dagger, RxAndroid, Bluetooth, Retrofit, Okhttp
2016 - 2016
freelance
Windows driver and API development
Abaco Systems.
The client needed a low-level driver and access API to support custom hardware. Addressed
issues with existing build system then designed and wrote a Windows hardware driver using
C/C++. Additionally designed and wrote an access API to the end-user's requirements, again in C/C++. Many technical challenges were involved, e.g. working on custom hardware without
usual PC connectivity, cross-platform debugging, low-level hardware interaction. Included in driver suite as part of the client's product.
Skills: C/C++, Windows driver development.
issues with existing build system then designed and wrote a Windows hardware driver using
C/C++. Additionally designed and wrote an access API to the end-user's requirements, again in C/C++. Many technical challenges were involved, e.g. working on custom hardware without
usual PC connectivity, cross-platform debugging, low-level hardware interaction. Included in driver suite as part of the client's product.
Skills: C/C++, Windows driver development.
API, C, Windows, Support, Hardware, Development, PC
2015 - 2016
freelance
Java REST and Server Faces
Babcock International.
September 2015 - April 2016
Android and web design and development
Led the development of a tablet-based Android app to enable efficient data collection.
Restrictions on the target environment meant the need for inventive solutions to data transfer;
implemented low-level socket proxies over USB to allow use of mobile database synchronisation
(Couchbase). Implemented web front and back ends for dynamic UI on the device (Java REST and Server Faces). Advised on and delivered best practices in current app design (including Material Design), but always focused on the client's requirements. Now an integral part of the client's mobile strategy.
Skills: Java, Android, Couchbase, JavaScript, node.js, Glassfish, JAX-RS.
Android and web design and development
Led the development of a tablet-based Android app to enable efficient data collection.
Restrictions on the target environment meant the need for inventive solutions to data transfer;
implemented low-level socket proxies over USB to allow use of mobile database synchronisation
(Couchbase). Implemented web front and back ends for dynamic UI on the device (Java REST and Server Faces). Advised on and delivered best practices in current app design (including Material Design), but always focused on the client's requirements. Now an integral part of the client's mobile strategy.
Skills: Java, Android, Couchbase, JavaScript, node.js, Glassfish, JAX-RS.
Web design, LED, Web, App, Data collection, Server, Development, Material Design, Node, Database, Javascript, REST, Android app, UI, App Design, Android, Node.js, Java, Design
2009 - 2015
job
Senior Software Architect and Software Lead
Motorola Solutions.
Joined as a contractor and was then asked to become permanent. Responsible for the technical
delivery of a new mobile enterprise app development toolkit, working with the wider team on its
design, then running a team of Windows Mobile/CE and Android developers in its
implementation. The project required in-depth Android and web knowledge, including GUI, logic,
architecture and JNI/NDK, targeting both enterprise and consumer Android devices.
Collaborated with teams in other countries to integrate this product with the existing Rhodes
product to create the RhoMobileSuite cross-platform development framework, which is now a
leading enterprise app development product.
Led the design and implementation of a CI/ATS framework, running on Amazon EC-2 instances.
It uses REST APIs, implemented in node.js, to enable globally distributed mobile devices to execute test suites. By using the Github and S3 APIs it performs cloud-based test builds.
Currently being rolled out to replace manual on-device software testing, resulting in massive
time and cost savings per test cycle, and raising product quality.
Ultimately made redundant when all software services were moved out of the UK.
Skills: C/C++, Java, Android, JavaScript, node.js, Bootstrap, Amazon Web Services, network
protocols.
delivery of a new mobile enterprise app development toolkit, working with the wider team on its
design, then running a team of Windows Mobile/CE and Android developers in its
implementation. The project required in-depth Android and web knowledge, including GUI, logic,
architecture and JNI/NDK, targeting both enterprise and consumer Android devices.
Collaborated with teams in other countries to integrate this product with the existing Rhodes
product to create the RhoMobileSuite cross-platform development framework, which is now a
leading enterprise app development product.
Led the design and implementation of a CI/ATS framework, running on Amazon EC-2 instances.
It uses REST APIs, implemented in node.js, to enable globally distributed mobile devices to execute test suites. By using the Github and S3 APIs it performs cloud-based test builds.
Currently being rolled out to replace manual on-device software testing, resulting in massive
time and cost savings per test cycle, and raising product quality.
Ultimately made redundant when all software services were moved out of the UK.
Skills: C/C++, Java, Android, JavaScript, node.js, Bootstrap, Amazon Web Services, network
protocols.
Node, LED, Framework, Logic, Enterprise, Web, App, Amazon, Software, Development, Testing, Implementation, It, Architecture, Network, Javascript, Windows, Web Services, Test, Github, Amazon Web Services, C, Cloud, REST, App development, Bootstrap, Android, Node.js, Java, Design
1998 - 2009
job
Owner
Interaxis Computing Ltd and FMK Software Ltd.
Moved to offices and employed a small team developing custom solutions in the data collection
and mobile data processing industry. Ran all aspects of the business: understanding customers'
requirements, winning the contract, designing the solution and organising the team to deliver it.
Skills: C# .NET, C/C++ for embedded systems.
and mobile data processing industry. Ran all aspects of the business: understanding customers'
requirements, winning the contract, designing the solution and organising the team to deliver it.
Skills: C# .NET, C/C++ for embedded systems.
C, Embedded, Net, It, Data collection, Processing, Winning
My education
1987
-
1988
Kings College
None, Maths
None, Maths
1979
-
1985
Forest School, London
A-Levels, Maths, Further Maths, Physics, Chemistry, General Studies
A-Levels, Maths, Further Maths, Physics, Chemistry, General Studies
Geoff's reviews
Experienced Android developer, initially for short term project, but likely to lead to further projects.
Cross-platform mobile developer to build out an MVP, 2-3 months-ish work.
4 years ago
Very knowledgeable and excellent communication. I would highly recommend Geoff for all aspects of Android Development.
Cross-platform mobile developer to build out an MVP, 2-3 months-ish work.
4 years ago
Geoff suggested a different way of working from our original proposal, which worked out a little quicker for the core functionality we actually needed now. We'll happily work with him again when we build out the remainder of our product.
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