William Alexander

William Alexander - Full-stack engineer specializing in Swift, iOS, and web development

William Alexander

Founding Engineer

Founding Engineer at Elyndra and independent app developer. Based in London, UK. Full-stack across web and mobile — TypeScript, React, Next.js, and Python on the web, native iOS and Android on mobile.

About

I'm Founding Engineer at Elyndra, where we're building an AI-native toolset for the social care industry, centred on supporting providers with referrals. I have a strong grounding in native mobile development across iOS and Android, and more recently in full-stack development — building and maintaining Elyndra's platform from the frontend through to the backend and the AI integration running through it.

Before Elyndra I shipped IoT device control at Dyson and social experiences at Hyper SQ. I'm a Dyson Institute of Engineering and Technology graduate with a First Class degree in General Engineering from the University of Warwick, specialising in software, alongside a distinction in a workplace apprenticeship.

On the mobile side I specialise in Swift and SwiftUI, building native apps with features like HealthKit integration, real-time data streaming, and offline-first architectures. On the web I work with TypeScript, React, Next.js, Python, and Node.js — from server-rendered frontends to backend APIs and database design. I enjoy owning the full picture, from infrastructure to pixel-perfect UI.

I'm always building something in my own time — solving problems I've run into myself and sharing the result.

Tyre Tracks is my flagship personal project — a cross-platform tyre tread depth tracker available on iOS, Android, and macOS that uses intelligent wear analysis to predict replacement dates and keep drivers safe. It's been a rewarding challenge combining data visualisation, predictive algorithms, and a clean multi-platform architecture.

I also built Ski Scotland Companion, bringing real-time resort data, live webcams, and interactive piste maps to every Scottish ski resort, and DrinkCounter, a health-focused alcohol tracker with Live Activities and HealthKit integration. Each app is taken from concept and design through to store release and ongoing iteration.

Projects

Tyre Tracks icon

Tyre Tracks

Utility app for tracking tyre tread depth across multiple vehicles. Features intelligent wear predictions, visual degradation graphs, replacement notifications, and iCloud sync to help drivers plan maintenance and stay safe on the road.

SwiftSwiftUI
DrinkCounter icon

DrinkCounter

Health-focused alcohol tracking app designed to help users monitor their drinking habits. Features real-time unit tracking, health limit warnings, Live Activities support, and privacy-first CloudKit sync across devices.

SwiftSwiftUISwiftData
iOS Traveller icon

iOS Traveller

Travel companion app helping users discover and explore destinations worldwide. Features offline maps, travel guides, and itinerary planning with seamless synchronization across devices.

SwiftUI
Escape Rooms icon

Escape Rooms

Find and book nearby escape rooms while tracking your completions. Features venue discovery, direct booking, completion logging, competitive leaderboards, and achievement awards to showcase your escape room expertise.

SwiftSwiftUIFirebase
House Hunter icon

House Hunter

Smart property search platform that revolutionizes house hunting. Features advanced filtering, real-time notifications, property comparison tools, and integration with major UK property portals.

Next.jsTypeScriptNode.js
Ski Scotland Companion icon

Ski Scotland Companion

Essential companion app for skiing and snowboarding in the Scottish Highlands. Features live resort data, interactive piste maps, smart notifications for resort conditions, and live webcams.

SwiftSwiftUIMapKit
Baton icon

Baton

Transform fitness into a team sport with Baton – where every run counts toward something bigger. Features group challenges, relay-style notifications, real-time progress tracking, and HealthKit integration.

Collaboration with Joe Williams

SwiftUIHealthKitSupabase

Audi Connect Swift

Unofficial Audi Connect interface written in Swift. Provides seamless integration with Audi vehicles for remote monitoring and control features.

SwiftREST APIs

Volvo Connect Swift

Swift-based interface for the Volvo Connected Cars API. Provides integration with Volvo vehicles for remote monitoring and control capabilities.

SwiftREST APIs

Open Source Contributions

TeslaSwift

Swift library to access the Tesla API. Forked and contributed to this open source project for communicating with Tesla vehicles.

SwiftTesla APIREST APIs

Porsche Connect

An unofficial Porsche Connect API library written in Swift. Forked and contributed to this project for integrating with Porsche connected vehicle services.

SwiftPorsche APIREST APIs

Experience

Elyndra logo

Elyndra

Current
Founding EngineerApr 2026 – Present · London

Building an AI-native toolset for the social care industry, centred on supporting providers with referrals. Our platform, Bridge, takes the hundred-plus referrals a provider receives daily across wildly inconsistent formats and turns them into a single structured view of each child's needs, and tracks placement decisions across the team in real time. I work across the whole platform — frontend, backend, and the AI integration running through it.

PythonFastAPIPostgreSQLAI IntegrationDocker
Visit Elyndra →
Hyper logo

Hyper SQ

Lead Software EngineerSep 2024 – Apr 2026 · London · Hybrid

Led mobile development of Hyper's iOS app — a social challenge platform bringing people together through shared experiences. Drove the full conversion to SwiftUI, modularised the codebase, and introduced testing. Optimised project configuration and the modular setup for build speed, and implemented AI-powered workflows that measurably sped up development.

  • Lead Software EngineerOct 2025 – Apr 2026
  • Senior Software EngineerSep 2024 – Oct 2025
SwiftSwiftUIiOSModularisationTestingAI Workflows
Visit Hyper →
APPSTRM logo

APPSTRM

Co-FounderAug 2020 – Aug 2025 · United Kingdom

Co-founded a software consultancy turning client ideas into shipped products, working with everyone from startups at the ideation stage through to established businesses. Built native iOS and Android apps alongside web work, taking projects from first concept all the way to store release.

SwiftKotliniOSAndroidWebConsultancy
Visit APPSTRM →
Dyson logo

Dyson

7 yrs
Senior iOS Developer — MyDyson AppAug 2017 – Sep 2024 · Bristol & Malmesbury

Developed and maintained the MyDyson iOS application, enabling users to control and monitor their Dyson devices across a connected ecosystem of 3+ million products. Implemented IoT connectivity, real-time device management, and intuitive UI/UX, plus support for non-connected products, Salesforce Marketing Cloud integration, and enhanced remote notifications. Joined as an Android developer on the DysonLink connected home app and moved to iOS as the team's needs changed, including a year-long deployment in Singapore working with the other half of Dyson's Connected App team.

  • Senior iOS DeveloperNov 2023 – Sep 2024
  • iOS DeveloperSep 2021 – Nov 2023
  • Undergraduate Mobile DeveloperSep 2019 – Sep 2021
  • Undergraduate EngineerAug 2017 – Sep 2021
SwiftKotlinUIKitARKitIoTBLECore Bluetooth
View MyDyson App →

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Get in Touch

Interested in working together, have a question about one of my projects, or just want to say hello? I'd love to hear from you.