Andy T. Greenshaw

Independent Software Consultant

Graduated in Computer Science in 1987. Specialist in cross-platform mobile development (Flutter) and iOS/Android systems. Experience designing, coding, and supporting software for global clients across the UK, USA, Europe, and Australia.

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Education

1984 - 1987

BSc (Hons) Computer Science (Upper Second Class)

University of Manchester

Experience Summary

2023 - Present

Independent Software Consultant (AI & Flutter)

Freelancer

Developing high-concurrency mobile and desktop applications using Flutter and Dart, integrated with latest AI models including DeepSeek for context-aware support.

Nov 2022 - Jan 2023

Charity App Lead Developer (BT Competition Winner)

British Telecom (Remote)

Developed an award-winning iOS and Android app using Flutter and TensorFlow for real-time item recognition and upscaling goods.

Aug 2021 - Jan 2022

Full Stack Flutter & Server-side Swift Developer

Pegem Ltd (SaaS Start-up)

Built a complete ecosystem including MySQL backend (Vapor), Admin mobile app (Flutter), and WebApp Admin console with location tracking.

May 2021 - June 2021

Technical Consultant (Flutter Migration)

NHS Partner (Remote)

Led the conversion of legacy iOS/Android medical apps to Flutter, implementing in-app messaging, notifications, and VOIP.

Feb 2021 - Mar 2021

Senior Flutter Developer

Credit Suisse (Remote)

Enhanced enterprise Flutter application with streaming video capabilities, advanced memory management, and robust offline mode handling.

Oct 2020 - Dec 2020

AI Image Recognition App Developer

Large Computer Firm (NDA)

Designed and developed a Flutter application for employee-led AI training, utilizing complex camera integrations and SFTP uploads.

Jan 2019 - Sep 2020

Independent Developer (Vapor & Flutter)

Personal Projects

Architected and deployed a multi-platform ecosystem including Vapor-based servers and cross-platform Flutter apps for iOS, Android, Web, and macOS.

July 2018 - Nov 2018

iOS VoIP Application Architect

Custodia Technology (London/NYC)

Designed a high-compliance VoIP and SMS application from scratch using Twilio, featuring intelligent cellular fallback for banking environments.

Apr 2016 - Apr 2018

Senior iOS Developer (MediEmo)

Horizon Strategic Partners Ltd

Implemented "MediEmo", a real-time medication and mood support app for IVF patients, in collaboration with Cardiff University and IVF clinics.

Aug 2013 - Aug 2017

Universal App Developer (vyn & WinSight)

humanLearning Ltd

Built enterprise-grade video capture and insight apps integrated with Salesforce, helping sales teams capture storyboarded video updates.

May 2014 - Jan 2016

CTO & Lead Developer

it's really about me Ltd

Defined tech stack and oversaw development of secure, scalable mobile apps and backend for a London-based start-up.

Feb 2002 - Dec 2003

Senior Designer (OpenTV SDK)

OpenTV Australia (Sydney)

Developed prototypes for FOXTEL network satellite applications and complex back-end systems using XML, C, and C++ (MFC).

Oct 1997 - Aug 1998

Software Core Developer (Digital TV)

Oracle (Reading)

Member of the Oracle team developing core runtime systems for British Interactive Broadcasting set-top boxes using OpenTV and UNIX.

June 1995 - Apr 1997

Lead Developer (Financial Sytems)

SWIFT (Brussels)

Managed release and development of mission-critical financial messaging systems on AIX/SunOS, achieving ISO9000 certification.

Sep 1987 - July 1992

Senior Designer (M&S / IBM)

Data Logic Ltd

Principal programmer for M&S warehouse control systems and lead for IBM OS/2 LAN Server/Requester development in Austin, Texas.

Personal Apps

A selection of my personal apps available on the App Store and Google Play Store.

Noise Recorder

Utilities

Measures the volume (in decibels) of your environment. Optionally records noises louder than a set threshold — great for monitoring snoring or sleep apnea. Find recordings by date and replay them with the built-in player. Supports light and dark themes.

I Need Aid

Utilities

Find emergency services based on your current location. Displays police, ambulance and fire brigade numbers for any country. Includes an SOS flash beacon and easy one-tap calling. Invaluable when travelling abroad.

Tube Info

Travel

Real-time London Underground status at a glance. Clear graphics immediately show which lines have delays, and tapping a line gives the specific reason so you can re-plan your journey. Also shows upcoming Tower Bridge openings.

Mix Radio UK

Music

Streams The Mix — the UK's favourite hit music station. Displays the current artist, song title and album artwork. Comes with a built-in screensaver to protect your screen, and is available as an Apple TV app too.