Senior PHP/Drupal Developer with Web 3D Experience for Paid Consultation

Project overview

Senior PHP/Drupal Developer with Web 3D Experience – Paid Short Consultation

We are looking for an experienced PHP/Drupal developer for a paid 1–3 hour online consultation.

We are preparing a bid for a public-sector project involving a Drupal-compatible catalogue of architectural renovation solutions. The potential project includes structured solution records, comparison views, an indicative cost calculator and web-ready 3D models.

During the consultation, we would like to review our proposed technical approach and get practical advice from a developer who has previously displayed IFC or a similar interactive 3D model in a web browser.

What we would like to discuss

After the call, we would like to receive a short written summary of the main recommendations.

Who we are looking for

You should have:

Experience with the following would be particularly useful:

Possible follow-on project

This assignment is initially for a paid 1–3 hour consultation.

If our tender is successful, we expect to need a developer for a larger project lasting approximately four months. We would be interested in continuing with the same specialist if the cooperation is a good fit. The follow-on project is not guaranteed and would be agreed separately.

How to apply

Please include:

A professional reference for the relevant project should be available if needed.

Budget and timing

This is a paid consultation lasting 1–3 hours. Please include your hourly rate and earliest availability in your application.

No unpaid test work is required.

Job facts: Direct client project

• A suitable Drupal architecture for the proposed catalogue.
• The division between Drupal, custom PHP modules and frontend components.
• Options for displaying IFC-derived GLB/glTF models in a browser.
• When it is reasonable to load IFC directly and when a pre-converted web format is preferable.
• Catalogue listing, detail and comparison views.
• A configurable cost calculator based on model quantities and unit prices.
• Updating prices and other calculation inputs through CSV or XLSX files.
• WCAG accessibility, performance, security and maintainability.
• The main technical risks and likely development effort.
• EU citizenship and the legal right to provide professional services in the EU.
• Current residence or professional establishment in the EU/EEA.
• Strong professional experience with PHP and Drupal.
• Experience within the past five years developing at least one web application that displayed an IFC model or an equivalent interactive 3D model in a browser.
• Experience with React, Vue, Angular or a comparable modern frontend technology.
• Good spoken and written English.
• Drupal 10 or Drupal 11.
• Custom Drupal modules and frontend integrations.
• Three.js, Babylon.js, web-ifc, IFC.js, That Open, xeokit or similar technology.
• glTF/GLB model loading and interaction.
• Data-driven calculators or pricing tools.
• CSV/XLSX import and administrator-managed data.
• WCAG-compliant public-sector websites.
• PDF generation and print-friendly views.
• A short introduction and your current location.
• A summary of your PHP and Drupal experience.
• The Drupal versions you have worked with.
• One relevant project completed within the past five years.
• Your role and responsibilities in that project.
• The backend and frontend technologies used.
• The type of 3D model displayed in the browser.
• Whether IFC was loaded directly or converted into GLB, glTF or another format.
• The viewer technology and main user functionality.
• Any experience with configurable calculators or CSV/XLSX data imports.
• Any experience with WCAG-compliant development.
• Links, screenshots or anonymised examples, if available.
• Your hourly rate and availability for the consultation.
• Whether you may be available for a four-month follow-on project.

Project details

• Start: date 11/2026
• Remote: remote
• Location: USA, US
• Languages: English