William Slabbaert

Tech Lead Consultant · We Do Dev Work

Aug 2026 – Present · Bangkok, Thailand

• Review the team's pull requests and own the technical decisions.
• Single point of contact for clients on scope and technical choices: give them what they need to decide and keep client and team on the agreed outcome.
• Wrote the SKILL.md files that hold our coding standards and made them mandatory, so AI-generated code follows the same rules as hand-written code.
• Moved QA into the team's workflow: developers now share responsibility for quality instead of handing work over at the end.
• Advise RAS Security, a Belgian security-equipment distributor, and MadeIndonesia, a digital agency in Yogyakarta, on technical choices and SEO; contract PHP work for SD Creative Agency in the Netherlands.
• Build internal products: EngineeringScore, a website-audit tool that scores security, performance, SEO and accessibility, and the PAK PRIK online shop (Thai curry paste).

Stack: .NET, Node.js, SvelteKit, Supabase, PHP

Full-Stack Developer and Tech Lead · Onify

Oct 2024 – Jul 2026 · Bangkok (remote, for a client in Malaysia)

• Built features across stock, ETF and fund trading, report exports and portfolio monitoring.
• Tech lead in a team of 4 developers, working with a project manager and a QA engineer, and still writing code most days.

Stack: .NET 6, React, Azure, SQL Server

.NET Consultant · Cheops Technology

Mar 2024 – Aug 2024 · Eeklo, Belgium

• Worked on the company's internal logistics system.
• Left in August 2024 to move to Bangkok.

Stack: .NET, C#

.NET Consultant · AllPhi

Sep 2021 – Feb 2024 · Merelbeke, Belgium

Consultant placed with clients in pharmacy, laboratory and home-services companies.

• APB, Belgian pharmacists' association (Aug 2023 - Feb 2024): Built UI components in ASP.NET Core MVC and Razor for the web application of the association representing about 90% of Belgian pharmacies, used by pharmacists and the public.
• Primoris, food-testing laboratory group, now with sites in 7 countries (Jan 2023 - May 2023): Fixed bugs and shipped features in the lab and office software (WPF, WinForms and Angular on .NET, deployed through Azure DevOps).
• Innovation Center Daenens, tech arm of a home-services group in Bruges (Apr 2022 - Sep 2022): Built an internal Xamarin.Forms app for iOS and Android that domestic workers across Belgium use to check schedules and payslips and to chat with head office. Wrote the functional specification with the client.
• Traineeship (Sep 2021 - Nov 2021): 3 months of .NET Core, CQRS, Entity Framework, Angular and React. Capstone at Febelco, a pharmaceutical wholesaler: an Ionic/Angular app that scans several medicine packages in one pass, a 23–30% performance gain over one at a time.

Stack: C#, .NET, Angular, Xamarin

PHP Developer Intern · Signpost

Feb 2021 – Jun 2021 · Lokeren, Belgium

• Maintained internal PHP software and its HTML/SCSS/JavaScript front end.