Summary
Overview
Work History
Education
Skills
Websites
Employment
Timeline
Generic

Jamie Stonehill

Porthcawl,BGE

Summary

Senior Software Developer with 19 years of experience delivering high-performance software solutions and leading projects across diverse industries. Highly skilled at learning and adapting to new technologies as project requirements evolve, ensuring seamless integration and effective problem-solving. Experienced in building scalable, innovative applications while ensuring continued support, maintenance, and iterative improvements throughout the full lifecycle. Passionate about creating exceptional user experiences and delivering long-term value through robust, user-centered software solutions.

Overview

2025
2025
years of professional experience

Work History

JCI ADT Evolve Xamarin Rebuild

- Current
  • Leading the rebuild of the JCI ADT Evolve app in Xamarin with C# and XAML using MVVM architecture, ensuring cross-platform compatibility and improved performance
  • The project is soon to be converted to .NET MAUI
  • Integrates with Azure, where all data is constantly synchronized with a database
  • External communication activities are performed from Azure, ensuring the handset never waits for slow web service responses and allowing users to continue working seamlessly

JCI Atlas

2021 - Current
  • Played a large role in architecting the project and developing a C# .NET web application
  • The tool is a series of CPQ tools intended to replace existing Excel-based solutions
  • The initial project involved building a platform that could be extended for additional Excel tool conversions

JCI ADT Evolve

2012 - Current
  • Developed an iPad-only app for ADT sales reps, designed as a CPQ (Configure, Price, Quote) tool to streamline the sales process
  • Built using AS3, Adobe Flex, and AIR, ensuring robust functionality tailored for iOS devices
  • The app has undergone constant development throughout its lifetime
  • Key additions and improvements include: Adding additional product disciplines, extending into additional sales markets, integrating with Salesforce, and adding a visual map drawing tool
  • Sales reps configure sales by drawing a map of the building and dragging product icons onto the map
  • Once data collection is complete, all information for the sale is sent into ADT's bespoke fulfillment processing system
  • Contracts are generated using DocuSign, allowing customers to sign and accept sales immediately
  • Developed a supporting C# .NET web service to complement the app's functionality
  • Continuously updated to support a changing product and evolving sales requirements

Snagmanager

2011 - Current
  • Developed a mobile app for iOS and Android, designed for quality assurance inspectors at Whitbread to catalogue and track issues found throughout various hospitality properties
  • Adapted the app to work with an existing data feed originally created for a web portal, ensuring seamless integration
  • Successfully managed a challenging customer who was prone to spec-creep, maintaining project focus and delivering results

JCI ADT Evolve Pacific

2014 - 2024
  • Adapted the UK Evolve project to integrate seamlessly into a different ecosystem, tailored for the Pacific market
  • Took on a project management role during the initial conversion phase, ensuring smooth coordination and delivery
  • Leveraged existing knowledge of the Evolve platform to maintain feature parity while meeting new system requirements

Danwood Customer Portal

2016 - 2018
  • Collaborated closely with a 3rd-party business development consultant to develop a comprehensive customer portal solution
  • Organized and led a small team of developers to work on the build of the portal

Epson Cost Calculator

2011 - 2015
  • Developed a mobile app for iOS and Android, designed for Epson device owners to predict their average printer costs based on various inputs such as print size and quality
  • Built using AS3, Adobe Flex, and AIR, leveraging cross-platform capabilities to ensure consistent performance and functionality across devices
  • Created a supporting app that allowed the customer to maintain configuration data in a spreadsheet and convert it into configuration files for use by the main app

Xerox Competitor Comparison Tool

2009 - 2012
  • Developed a tool to enable Xerox Sales Reps to compare Xerox Printers to other comparable devices across the industry
  • Built using Adobe Flash with AS3, focusing on a user-friendly interface and functionality
  • Led development efforts to ensure the tool efficiently handled large amounts of data, improving performance and usability

Xerox ELearning

2005 - 2014
  • Developed a series of eLearning modules for Xerox to provide training on various subjects, including new printer technologies, sales processes, and specific new product models
  • Built using Adobe Flash and AS3 to create interactive, user-friendly modules aimed at engaging learners
  • Involved in both the technical build and writing content for the modules to ensure clear, informative, and engaging material
  • Ensured the modules met the SCORM eLearning standard for compatibility with learning management systems
  • Ensured the content was accessible and adaptable to different learning styles and environments

Xerox Configurator

2008 - 2011
  • Sales tool, built using Adobe Flash, used throughout Europe to assist Xerox Sales Reps in configuring printer hardware and software according to customer specifications
  • Took over the role as primary developer, leading the development and optimization of the tool to enhance performance and user experience
  • My biggest contribution was overhauling the way data was stored and updated, which massively improved the speed at which new data could be added to the tool—addressing a major performance issue
  • Played a key role in documenting and redesigning the tool when it was later re-built as a .NET web application

Digital Briefcase

2005 - 2009
  • Contributed to the development of a software solution that allowed users to collect, organize, and use digital collateral for presentations or distribution via CD ROM in a non-editable format
  • Utilized Adobe Director to design an intuitive user interface for seamless interaction with digital assets
  • Implemented the solution for several different customers, including Colas Rail, Xerox, Thales, and Epson
  • Assisted in troubleshooting and optimizing the application for smooth performance and compatibility with CD ROM distribution

Education

Bachelor of Science - MediaLab Arts

Plymouth University

Skills

  • Programming Languages: C#, AS3, JavaScript (basic), Python (basic), HTML/CSS, Swift (basic), Visual Basic, ASP NET (basic)
  • Frameworks & Platforms: Xamarin, NET MAUI, Adobe Flex, AIR
  • Cloud & Databases: Azure, SQL
  • Version Control: Git, SVN

Employment

Senior Software Developer | Signals Ltd. | August 2005 – Present

  • Lead and contributed to various software development projects across multiple industries, including creating tools for sales teams, eLearning solutions, and mobile apps for large corporate clients.
  • Worked on a diverse tech stack including Adobe Flash, AS3, C#, Xamarin, .NET MAUI, and Azure to develop high-performance, user-centered applications.
  • Collaborated with stakeholders and teams to ensure seamless integration and continuous improvement throughout the software lifecycle.

Timeline

JCI ADT Evolve Xamarin Rebuild

- Current

JCI Atlas

2021 - Current

JCI ADT Evolve

2012 - Current

Snagmanager

2011 - Current

JCI ADT Evolve Pacific

2014 - 2024

Danwood Customer Portal

2016 - 2018

Epson Cost Calculator

2011 - 2015

Xerox Competitor Comparison Tool

2009 - 2012

Xerox ELearning

2005 - 2014

Xerox Configurator

2008 - 2011

Digital Briefcase

2005 - 2009

Bachelor of Science - MediaLab Arts

Plymouth University

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Jamie Stonehill