Senior Full Stack Engineer

RAPSYS TECHNOLOGIES PTE. LTD.; Singapore; On-site; SGD 90,000 - 140,000; Full time

Job summary

RAPSYS TECHNOLOGIES PTE. LTD.

in Singapore is seeking a Senior Full Stack Engineer to design and implement a web-based 3D IFC model viewer, handling everything from architecture to deployment. You will evaluate open-source libraries (IFC parsers, WebGL frameworks), implement navigation features like object selection, section cuts, and property inspection, and collaborate with backend teams on geometry processing and data APIs.

Qualifications

• Strong knowledge of JavaScript/TypeScript with Node.js or Deno.
• Solid understanding of 3D graphics or computational geometry.
• Excellent problem-solving and communication skills.

Responsibilities

• Design and build a web-based 3D IFC model viewer from architecture to implementation.
• Evaluate open-source libraries and tools (IFC parsers, WebGL frameworks).
• Implement model navigation features such as object selection, section cuts, and property inspection.
• Collaborate with backend engineers on server-side geometry processing and data APIs.
• Optimize viewer performance for large, complex files.
• Iterate on the viewer based on end-user feedback.

Skills

JavaScript/TypeScript

3D graphics

Computational geometry

Problem solving

Team collaboration

Node.js/Deno

Full-stack development

Tools

WebGL

Babylon.js

IfcOpenShell

Job description

Role: Senior Full Stack Engineer

JD:

What you will be working on

• Designing and developing the web-based 3D IFC model viewer, from architecture through to implementation
• Exploring and evaluating relevant open-source libraries and tools (e.g. IFC parsers, WebGL frameworks)
• Implementing model navigation features (e.g. object selection, section cuts, and property inspection, etc.)
• Collaborating with backend engineers on server-side geometry processing and data APIs
• Optimising viewer performance when dealing with large, complex files
• Iterating on the viewer based on feedback from end users

What we are looking for

• Familiarity with JavaScript/TypeScript and backend JS runtimes (e.g. Node.js/Deno)
• Good understanding of 3D graphics and/or computational geometry concepts
• Strong problem solving skills and a desire to learn
• Excellent communication and collaboration skills

Familiarity with any of the following would be a plus:

• Web development (Frontend/Backend/Full-stack)
• WebGL or related 3D frameworks (e.g. Babylon.js)
• Python and libraries like IfcOpenShell
• Building Information Modeling (BIM) concepts
• Geospatial data and information
• Agentic development workflows (e.g Claude Code)
• WebAssembly