Professional Experience
Willan Theunissen’s experience in agency leadership, automotive technology, enterprise PHP consulting and financial services marketing systems.
Discuss a Project with Willan
Founder and agency leadership
Webvelopment · established November 2013
Willan’s work at Webvelopment brings together client consulting, business development, website and software engineering, creative delivery and digital marketing. That breadth matters when your project crosses disciplines: the website, the campaign bringing people to it and the software handling their enquiries all need to work together.
His founder responsibilities include shaping proposals, scoping projects, planning delivery and maintaining long-term client relationships. Hosting and infrastructure are part of that work too, because a launch leaves practical questions about who runs the system and how it will be maintained. International service delivery also calls for attention to market context, communication and support responsibilities.
Developing a digital business unit
South African business group · appointment began April 2025
The supplied professional profile records a Head of Digital appointment focused on developing a digital division within an established business group. The remit included defining services, preparing proposals, developing delivery processes and building specialist capability for internal stakeholders and external clients. This experience is relevant when deciding what a digital team should offer and how to deliver it.
Recruitment automation, training platforms and call-centre analytics also appear in the profile as planned initiatives. They remain plans in this account, rather than completed products or Webvelopment-owned systems. The appointment’s current status and the delivery stage of each initiative need confirmation before they inform a prospective engagement.
Automotive technology consulting
Multi-brand automotive retail environment · engagement began July 2021
Senior PHP development and technical consulting covered the connections between automotive websites, dealer systems and customer relationship management (CRM) workflows. The supplied profile describes WordPress used to manage content separately from the public website, a custom static-site generator and integrations with dealer-management systems.
The engineering contribution included centralised lead processing, routing, attribution and reporting, alongside technical scoping for senior stakeholders. This connects the enquiry a visitor submits with the information a dealer needs to follow it up.
Brand names, volumes and performance figures are withheld here. This is a professional engagement; its overlap with other roles does not establish a full-time employment arrangement.
Senior enterprise development consulting
Technology consultancy · August 2022–October 2025
This consulting work combined PHP application development with solution architecture, technical discovery and project estimation. The profile records infrastructure migration, performance diagnostics, security hardening, custom business applications and development-team mentoring.
Across professional services, retail and enterprise platforms, the work involved existing systems and the people responsible for maintaining them. That experience is useful when you need to weigh a proposed change against the application already in use: migration, performance and ongoing maintenance belong in the same discussion as new features. These engagements were undertaken through a consultancy and are not presented as direct Webvelopment contracts.
Financial services marketing technology
Financial services organisation · June 2019–September 2025
The Head of Marketing & Development remit combined multi-channel customer acquisition with the systems supporting customer communications and day-to-day operations. Work included websites, landing pages, marketing integrations, financial workflow applications and reporting tools.
This connects marketing decisions to what happens after an enquiry arrives: checking the information, routing it to the right place, supporting follow-up and making the activity visible in reports. When assessing marketing technology, consider that whole path alongside the campaign. Numerical campaign results are excluded because their baseline and measurement method have not been independently validated.
Earlier technology and international work
An assistive technology initiative, recorded from March 2018 to July 2019, involved early application and go-to-market development for people with limited motor control. This was exploratory work; the experience does not establish that a commercial assistive product was completed.
An international digital-services collaboration, recorded from November 2016 to September 2018, supported digital design and development for businesses in Belize. Earlier small-business experience included customer service, quotations, stock processes and practical IT improvements. Those everyday responsibilities help explain the emphasis on digital tools that fit the work people need to do.
Putting the experience to work
Tell us where the difficulty sits today: attracting enquiries, connecting systems, changing an existing application or developing an internal digital capability. A short description of the systems involved and the people using them gives us a useful starting point.
The roles above describe Willan’s professional experience across different organisations and contractual arrangements. They do not make every external engagement a Webvelopment project. We will discuss the proposed work, availability and responsibilities directly before making a delivery commitment.
Keep the right things connected.
Willan Theunissen
Meet Willan Theunissen, founder of Webvelopment: digital strategy, PHP engineering, enterprise integrations and commercially grounded technology consulting.
Bespoke Development
Plan business software around the work people need to do: choose an application, eCommerce change, PHP update or integration, with a clear first release.
Development insights
Practical guidance for scoping applications, eCommerce systems and ongoing development work.
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