Technical Expertise
Explore Willan Theunissen’s documented capabilities in PHP, Laravel, APIs, headless websites, CRM integrations and business application architecture.
Discuss a Project with Willan
Software engineering
Willan’s documented engineering experience covers PHP, Laravel, JavaScript, WordPress and API integration. That includes the details behind a business application: related records, user permissions and handling incomplete tasks.
For a bespoke application, start with one workflow: who creates a record, who checks it and who needs the result? We can then discuss the data model, permissions and integrations before choosing a framework. PHP development and Laravel development describe the corresponding Webvelopment delivery paths.
Web platforms and publishing architecture
Willan’s experience includes conventional WordPress websites, headless publishing and custom static-site generation. A headless setup separates the editorial system from the system that builds and serves the public website.
When comparing publishing approaches, consider how an editor previews a change, how it reaches the live site and what the team sees if a build fails. Redirects also need attention when existing page addresses change.
E-commerce and specialist web applications feature in the consulting profile. For your project, payment-provider access and third-party compatibility need checking against the actual products and editions involved.
APIs and operational systems
CRM and dealer-system integration experience includes record mapping, lead ingestion, routing and reporting. Mapping connects fields across systems, exposing gaps such as required information the website never collected.
For example, imagine an enquiry arriving twice after a failed connection. The integration needs a way to recognise the repeat, decide whether to retry and show staff any enquiry that still needs attention. These are design questions to address before implementation.
Custom financial workflow tools and reporting applications also form part of Willan’s documented background. Work involving sensitive records must follow your organisation’s access policies and agreed scope, including who can view, change or trace a record.
Marketing technology
Willan’s digital acquisition experience covers paid search, SEO, landing pages, customer communications and attribution. Engineering connects these activities through consistent event definitions, usable lead records and the link between a campaign and the later sales process.
Before building a dashboard, choose the decision it should help you make. If you want to compare enquiry quality across campaigns, we need to understand what counts as a qualified lead, how that status is entered in the CRM and which outcomes can be measured reliably. Form counts alone leave those questions unanswered.
Infrastructure and maintainability
Infrastructure strategy, migration, technical diagnostics, performance optimisation and security hardening are recorded in Willan’s consulting profile. Start with the fault or limitation, the application it affects and the services it depends on.
A migration needs to account for those dependencies as well as the destination server. We would discuss recovery if the move fails, who will operate the system afterwards and what platform support it needs. Website infrastructure modernisation explains the diagnostic-to-implementation approach.
Applications and additional technology choices
Application architecture, authentication and business interfaces are relevant areas for discovery. Describe the tasks people need to complete and each role’s access so we can compare approaches.
React Native and Expo are candidate technologies for Webvelopment app projects. The available professional profile does not establish Willan’s personal delivery history with those tools, so they are not presented as verified personal specialisms.
Evidence and professional credentials
This overview draws on Willan’s supplied professional history, including external consulting engagements. It does not imply that every engagement was a Webvelopment contract. Certification badges and partner designations are excluded until their exact title, ownership and current validity have been checked. A company partner designation is distinct from an individual’s certification.
Discuss a technical assessment with a short description of the system and the decision you face, or explore Webvelopment’s development services.
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.
Start a conversation
Tell us what you are working towards. We’ll help you find a practical next step.