Available for collaboration · Norwich, UK

Andy Pierrepoint
Senior Software Development Engineer

Experienced .NET developer with 25+ years designing and delivering high-quality software across desktop, mobile, and web — strong in C#, XAML, WPF, MAUI, Xamarin, and modern .NET, with UI/UX as a supporting strength.

Norwich, England, United Kingdom Zangl · zangl.co.uk
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Andy Pierrepoint

About

Microsoft-stack engineering, grounded in UX

Experienced .NET developer combining deep Microsoft-stack expertise with strong UI/UX sensibilities.

I’m an experienced .NET developer with 25+ years designing and delivering high-quality software across desktop, mobile, and web platforms. Strong in C#, XAML, WPF, MAUI, Xamarin, and modern .NET practices, combining deep technical expertise with strong UI/UX sensibilities to create intuitive and maintainable applications.

Skilled across telecommunications, construction, health, aerospace, rail, utilities, and gaming. A calm, thoughtful problem solver who takes ownership, works well independently or collaboratively, and consistently delivers reliable, user-focused solutions.

Microsoft stack specialist C#, .NET 6–10, XAML, WPF, MAUI, Xamarin, ASP.NET MVC
UX & design fluency Wireframes, prototypes, Telerik, Figma, and production UI
25+ years shipping software Telecoms, construction, health, aerospace, rail, utilities, gaming

Experience

Career timeline

Selected roles aligned with the current CV (British English).

  1. .NET Software Engineer Current

    Laplace Instruments Ltd

    Jun 2024 – Present · North Walsham · Hybrid

    Laplace Instruments is a leading provider of EMC testing equipment. As the sole software engineer, responsible for completing and modernising a complex digital signal analyser after several unsuccessful outsourced attempts — with full ownership of architecture, UI/UX, development, testing, and release.

    • Modernised a legacy WPF application by migrating it to .NET 10, improving performance, maintainability, and long-term support
    • Redesigned the entire UI using Telerik controls, delivering a cleaner, more intuitive interface with modern charts, tables, and embedded spark lines
    • Applied responsible AI and agentic development methods within strict internal guidelines for code quality, traceability, and safe usage
    • Integrated AI-assisted workflows while maintaining full human oversight, version control discipline, and comprehensive unit test coverage
    • Delivered a high-performance FFT analysis system using C# 13, .NET 9/10, and WPF, processing analogue input from 1 kHz to 6 GHz
    • Built multithreaded data-processing pipelines and optimised UI rendering for large real-time datasets
    • Integrated with an AMD Zynq UltraScale+ RFSoC ZCU111 processor for high-speed signal acquisition and processing
    • Created installers, managed Git repositories, and handled the full development lifecycle independently across Windows and Linux
    • Implemented extensive unit testing using xUnit and Moq across calculations, data processing, and decision-making logic

  2. Career break

    Personal

    Nov 2023 – Jun 2024

    Focusing on skill development and readiness for returning to full-time work.

  3. .NET Mobile Developer

    The Access Group / COINS

    Oct 2021 – Nov 2023 · Remote

    • Developed new UI controls and enhanced existing components within the shared Xamarin Forms framework
    • Updated and customised renderers to improve look, feel, and performance
    • Contributed to SSO enhancements, enabling integration with external identity providers
    • Delivered features for iOS and Android mobile/tablet apps using XAML, MVVM, and C#
    • Collaborated closely with UX designers, contributing design ideas using Figma
    • Migrated components and pages to .NET MAUI, refactoring namespaces and removing obsolete dependencies
    • Used Azure DevOps for source control, sprint planning, PRs, retros, and CI/CD
    • Implemented unit tests using NUnit and Moq

  4. Lead .NET Application Developer

    Slimming World Ltd

    Mar 2017 – Oct 2021 · Hybrid

    • Modernised legacy Win10 tablet apps using WPF, XAML, and Material Design Toolkit
    • Delivered a complete UI/UX overhaul, improving usability for over 20,000 consultants nationwide
    • Worked directly with the MD, CEO, and Product Owner to prototype and validate new features
    • Built wireframes, prototypes, and production code within an agile sprint process
    • Implemented data access using SQL Server and Dapper
    • Managed CI/CD pipelines via TeamCity and DevOps

  5. Software Development Consultant

    Balfour Beatty Rail

    Jun 2016 – Mar 2017 · Contract

    • Designed and delivered new UI components for a rail telemetry system using WPF, Telerik, MVVM, and TDD
    • Created Balsamiq mockups and implemented fully unit-tested ViewModels
    • Worked within an agile team using YouTrack and TeamCity
    • Contributed to MongoDB data modelling following formal training

  6. Support Software Development Consultant

    E.ON IT UK Ltd

    May 2015 – Jun 2016 · Contract

    • Delivered full-stack enhancements for E.ON’s primary UK customer-facing website
    • Worked with C#, JavaScript, Sitecore, AngularJS, jQuery, REST, and Oracle PL/SQL
    • Supported urgent maintenance and stability improvements across digital platforms
    • Collaborated with offshore teams in Bulgaria and Bengaluru

  7. Software Development Consultant

    Babcock International Group PLC

    Mar 2011 – Apr 2015 · Contract

    • Lead developer for a Silverlight/HTML5 Management Information System for Heathrow Airport
    • Designed dashboards and reporting tools for large-scale baggage logistics data
    • Delivered full lifecycle development from wireframes to deployment
    • Provided support across PL/SQL, C#, XAML, HTML, and JavaScript

  8. Software Development Consultant

    Balfour Beatty Rail Technologies

    Jun 2008 – Mar 2011 · Permanent

    • Designed and developed UI for offline rail monitoring systems using WinForms, ASP.NET, and Infragistics
    • Produced detailed storyboards and requirements using Enterprise Architect
    • Delivered UI that received strong customer praise for clarity and usability

  9. Software Development Engineer

    Eurocom Entertainment Software

    Nov 2006 – Jun 2008 · Permanent

    • Built a multiuser localisation tool for translators, generating text and audio assets for game titles
    • Developed using C#, WinForms, Web Services, and Infragistics

  10. Software Development Manager

    Consillia Ltd

    Nov 2004 – Nov 2006 · Shardlow, Derby

    Full lifecycle ownership of VTAS (vehicle track analysis software) for ride comfort and track-fault monitoring across mainline and light rail systems.

    • Sole software developer and IT manager in a small company
    • Migrated the product line from chart-recorder systems to PC data acquisition on rugged tablet PCs
    • Introduced C#, .NET 2.0 and Visual Studio 2005 into the Consillia product line

Skills

Tools & capabilities

Core skills from the current CV — Microsoft application stack first, with UI/UX and quality practices.

Languages & frameworks

C# .NET 6–10 XAML WPF MAUI Xamarin Forms/Native ASP.NET MVC HTML5/CSS3 JavaScript

Architecture & practices

MVVM TDD SOLID Multithreading Async UI component design API integration WPF → .NET 10

Tools

Visual Studio JetBrains Rider Azure DevOps Git Jira SourceTree TeamCity Replit

Data

SQL Server Oracle SQLite Entity Framework Dapper NHibernate MongoDB

UI/UX

Telerik Adobe XD Photoshop Illustrator Figma Blend Balsamiq

Testing

xUnit NUnit Moq

Selected work

Highlights

A few representative chapters — no invented metrics, just the substance of the work.

Laplace Instruments — digital signal analyser

Sole software engineer modernising a complex digital signal analyser: WPF → .NET 10, full Telerik UI redesign, high-performance FFT from 1 kHz–6 GHz, and AMD Zynq UltraScale+ RFSoC ZCU111 integration — with AI-assisted workflows under human oversight.

WPF .NET 10 Telerik FFT / RFSoC

Access / COINS mobile

.NET Mobile Developer across the shared Xamarin Forms framework and product apps — custom controls and renderers, SSO enhancements, XAML/MVVM with C#, Figma collaboration, NUnit/Moq, Azure DevOps, and .NET MAUI migration.

Xamarin .NET MAUI MVVM Azure DevOps

Slimming World tablet apps

Lead .NET Application Developer modernising Win10 tablet apps in WPF/XAML with Material Design — a complete UI/UX overhaul for over 20,000 consultants, working with MD, CEO, and Product Owner from wireframes to TeamCity/DevOps delivery.

WPF XAML Material Design SQL Server

VeganScan — personal project

Full React Native app with AI-powered ingredient scanning, barcode lookup, camera integration, multi-provider authentication (Apple, Google, Facebook, Microsoft), a Stripe-based credit system, and multiple iOS App Store builds.

React Native AI scanning Stripe App Store

Recommendations

What colleagues say

Selected quotes from LinkedIn recommendations on the CV.

“I had the pleasure of working with Andy for two years at The Access Group… his understanding of customer experience principles consistently stood out. He demonstrated an innate ability to grasp not only the technical aspects of mobile development but also the subtler nuances that make an app truly user-friendly and engaging. Above all, Andy’s commitment to quality and his diligent work ethic make him a valuable asset to any team.”

Dave Kayira Senior Product Manager, The Access Group

“I worked with Andy for around 3 and a half years… Andy is very experienced in C#.NET development and has a creative flair with a strong attention to detail. His main focus on this project was the design and development of the Silverlight user interface. The project was successfully delivered and received excellent feedback from the customer who described it as the best user experience in the company.”

Jim Hodgkinson Development Manager, Babcock

“It was a pleasure to have Andy as part of my team… he was very thorough and professional in his approach and delivered to customer specification. He is an excellent UI programmer and extremely good at translating user and customer requirements.”

Dean Soer Information Systems Manager, Eurocom

Education

Background

BTEC Higher National Diploma (HND) in Electronic Engineering

Loughborough College Group

1986 – 1989

Contact

Let’s talk

Prefer email or LinkedIn. Zangl is Andy’s personal brand and consultancy identity — reach out via the channels below.

Email Andy GitHub
Email andy@zangl.co.uk LinkedIn linkedin.com/in/andypierrepoint GitHub github.com/Zangl