Eliott Hauteclair
Eliott Hauteclair in Łazienki Park, Warsaw

Lead Software Engineer at Xpandity.com, Belgium

I build software and keep it running.

Cloud platforms, apps and connected hardware. Shipping tools shaped by the logistics I run day to day.

About me

I’m Eliott, a developer from Affligem, Belgium. I started shipping software in 2016 with iOS apps for car launches and trade fairs, and sent Apple a WWDC scholarship playground in 2018.

Today I’m lead software engineer at Xpandity.com. I build and run the systems on this page end to end: the Go APIs, the Next.js back offices, the Swift apps, the ESP32 firmware on the desk and the GitLab CI that ships all of it. Some of those apps have had an update for every iOS release since 2019.

From February 2025 to October 2026 I was also at Cegeka, first as an intern and then in the Data & Insights team, working on the platform that collects Azure data for every customer.

Beyond software I’m drawn to logistics and supply chain. I run Xpandity’s shipping day to day, for client projects and e-commerce orders, which is also why the shipping portal works the way it does.

eliott@xpandity: ~

CueHero

The queue at the counter, run from one system.

Visit queues.xpa.be

Customers take a ticket at the kiosk, by SMS or by email. Staff call the next one from the back office, a hardware button or a 2.16" ESP32-S3 screen on the desk, and a live board shows who is up. It runs in stores such as Lucien Bike.

API
Go, sqlc, Goose, Postgres
Back office
Next.js
Desk screen
ESP32-S3 firmware with OTA, burn-in and power handling
Apps
Swift
CueHero: /locations/1
CueHero: /locations/1/statistics
CueHero: /lines/1/serve
CueHero: Apple TV + iPad
CueHero: Desk screen

Shipping

Labels, tracking and claims for every carrier.

One portal for rates, labels and tracking across UPS, FedEx, DHL and GLS. It flags late deliveries, opens claims, prices fees before anyone books, and gives customers a public tracking page. A Go agent drives the label printers, and another ESP32-S3 screen shows the day’s counts on the desk.

Portal
Next.js, Drizzle, Postgres
Print agent
Go
Desk screen
ESP32-S3, 480×480 AMOLED, UniFi door button
Integrations
UPS, FedEx, DHL, GLS, Odoo, Stripe
Shipping: /internal/dashboard
Shipping: /track/GLS90001096Shipping: /track/GLS90001096 on a phone
Shipping: Desk screen
Shipping: Desk screen, queue

Living Prints

Art prints that move as you walk past.

Visit livingprints.art

A shop for lenticular prints from several photographers. Each product page simulates the effect live, so you see the print change before you order it.

Commerce
Medusa
Catalogue
Payload CMS
Storefront
Next.js, Tailwind, WebGL
Living Prints: livingprints.art
Living Prints: /products/pit-lane
Living Prints: /products/raceborn

Also in production

Display Specs

Swift, Django · 2020–

Display Specs: Stock list
Display Specs: Spec sheet

Showroom apps for Lamborghini and Bentley, with live stock on iPad and Mac, plus dedicated Bugatti and Rimac spec displays.

  • Lamborghini and Bentley: dealer-specific apps and Django backends for live stock and vehicle details.
  • Bugatti Chiron: a dedicated SwiftUI display for exterior, interior and vehicle information, with a night mode.
  • Rimac: a dedicated SwiftUI display for specification, wheels, seats, pricing and CO₂ information, with a night mode.
  • Porsche Centre Brussels and Kia: an earlier Objective-C Digital Specs platform for specifications, equipment, prices and CO₂ information, listed separately below.
  • Staff search the stock by VIN or name, and the iPad reopens the last car after a restart.
  • Prices excl. or incl. VAT or on request, with pre-owned and sold labels.
  • Motor-show mode dims the screen, keeps it awake and shows a QR code for the car.
  • Updated for every new iOS release since 2020.
Apps
Swift, SwiftUI, iPadOS and macOS
Backend
Django REST API per dealer
Monitoring
Sentry

Xpandly

Go, Next.js, tvOS, Android

Xpandly: Media library
Xpandly: Playlist editor
Xpandly: Apple TV playback

Digital signage for showrooms: manage media and playlists on the web, then play them on Apple TV and Android screens.

  • A media library for videos, images and YouTube content, with playlists and devices managed per location.
  • Ordered playback or shuffle per screen, with daily random modes and horizontal or vertical playlists.
  • Media stored on S3, video processing through AWS MediaConvert and a Go API for the web back office and players.
  • The Apple TV app downloads media for playback and receives push notifications when its playlist changes.
API
Go, sqlc, Goose, Postgres
Back office
Next.js
Players
Swift, tvOS, Android
Media
S3, AWS MediaConvert, APNs

CarScan

Go, Next.js, Swift

CarScan: Event leads
CarScan: Car sheets + QR pageCarScan: Car sheets + QR page on a phone

Event leads and vehicle spec sheets in one platform: an iOS app for the lot, a web back office and public QR pages in Dutch or French.

  • Manage events and the drivers and cars recorded in each event, with an Excel export for follow-up.
  • PressCar QR labels open vehicle spec sheets in Dutch or French, with PDFs or redirect links per language.
  • Brand colours, white-label subdomains, printable labels, sheet expiry and scan history per location.
API
Go, sqlc, Goose, Postgres
Back office and QR pages
Next.js
Mobile app
Swift
Auth and documents
Logto, S3

Pricelist Studio

Next.js, react-pdf, Postgres, S3

Pricelist Studio: Vehicles
Pricelist Studio: Vehicle editor
Pricelist Studio: Price list, page 2

Ford Belgium’s price lists. Vehicles, accessories and media go in; print-ready PDFs in Dutch and French come out.

  • Imports Ford’s XML exports and media into Postgres.
  • Renders every PDF in-process: cover, prices, performance and charging, dimensions, equipment, options, packs and accessories.
  • Dutch and French price lists, an admin in Dutch or English, and an audit log of every change.
  • Access through Logto organisation roles, media on S3, and blue/green deploys from GitLab CI.
  • Replaces the old Django admin and PHP generator.
App
Next.js
PDFs
react-pdf
Data
Postgres, S3
Auth
Logto

JIL Tickets

Next.js, Drizzle, Postgres, Logto, SES

JIL Tickets: Registration + ticketJIL Tickets: Registration + ticket on a phone
JIL Tickets: Tables and tickets

Registration and VIP tickets for the Jumping International de Liège: invitation codes, emailed PDF tickets and entry and parking checks.

  • An invitation code determines the event day, table and parking entitlement; guests register with their email address.
  • Guests receive a PDF ticket and a permanent ticket link, with French and Dutch guest pages.
  • Organisers manage tables, capacities and tickets, with separate entry and parking scans.
App and data
Next.js, Drizzle, Postgres
Tickets
pdfkit, QR codes
Organiser access
Logto
Email
AWS SES

CMS Pro

Go, Next.js

CMS Pro: cmspro.be
CMS Pro: cmspro.be/cars

Stock and sales inquiries for CMS Pro, a race-car restoration atelier in Estaimpuis.

  • A Go API on Postgres holds the cars and the sales inquiries.
  • The Next.js back office edits the stock; the public site at cmspro.be shows it with sold labels and a brochure per car.
API
Go, sqlc, Goose, Postgres
Site and back office
Next.js
Visit cmspro.be

cctrack

Go, Vue, Vite

cctrack: Cost dashboard

An open-source fork of a cost tracker for AI coding tools, with multi-model sessions and a live web dashboard for Claude Code, Codex, OpenCode and Copilot.

  • Reads local session logs and databases to group usage by project, session, model and coding tool.
  • A Vue dashboard served by a Go binary, with daily spend, model breakdowns and budget projections.
  • Distinguishes reported costs from estimates calculated using the rate card.
Backend
Go
Dashboard
Vue, Vite

Experience

  1. Aug 2017 – now · part-time

    Lead Software Engineer, Xpandity.com

    Alongside my studies and Cegeka, I build and run the platforms, apps and firmware on this page, from the Go APIs and Next.js back offices to the Swift apps and ESP32 screens. I also manage the company’s shipping day to day on the portal I wrote.

  2. Jul 2025 – Oct 2026

    Technology Development Engineer, Public Cloud, Cegeka

    Joined in February 2025 as Software Developer, Public Cloud, building BlueCreek, then moved into the Data & Insights team, which builds the cost, compliance, infrastructure and identity dashboards Cegeka’s Azure customers use.

    • Data Retrieval, the platform that collects every customer’s Azure data: new sources such as Secure Score, Defender XDR and Policy v2, sharded Resource Graph queries, per-customer workers and OpenTelemetry.
    • Built status.theblueocean.cloud, which shows whether each customer’s data and Power BI refresh arrived, with a daily digest.
    • Built the update tool that rolls new dashboard versions out to every customer, and the streaming cost Parquet conversion.
    • Worked on the Blue Ocean Insights portal (Angular) and Infrastructure 3.0.

    972 commits · 97 pull requests · 307 issues closed · 17 customer onboardings

  3. Feb – Jun 2024 · seasonal

    Teaching assistant, CodeFever

    Taught Python to 13 to 15 year olds: classes, functions, external modules and a first game in Pygame.

  4. Jul 2021

    Software developer, contract, AVS Group

    A small PHP ERP for billing, quotes, customers and stock, used at the office and on the road.

  5. Oct – Nov 2019

    Solutions developer, contract, Jumping International de Liège

    A web platform and mobile app for parking and VIP access: creating, validating and scanning tickets on site.

  6. Apr – Dec 2018 · remote

    Software developer, volunteer, UltraNote

    Helped the UltraNote project grow and develop its blockchain technology.

Education

  1. Sep 2023 – Jul 2025 · High Distinction

    Bachelor of Applied Science, Computer Science, HOGENT

    Thesis: porting a SwiftUI kiosk app to Linux with Adwaita for Swift, and comparing the cost of ownership of non-Apple kiosk hardware.

  2. Sep 2021 – Aug 2023

    Information and Communication Technology, Computer Science, Ghent University

    C and C++, which I still use for the ESP32 firmware.

Before 2024

Need something built, or kept running?

me@eliott.be · LinkedIn

⌂