Tekla Extensions Developer

Location: Harley, Ontario - on-site position 

OVERVIEW

Stubbe’s is a family-owned and operated company that has been in business for over 40 years. At Stubbe’s, our continued focus is to provide unique, cost-effective, and lasting building solutions.

Stubbe’s started as a small precast company servicing the agricultural market, evolving over the past 40 years to a diversified company that provides a wide range of concrete (related) products and services. 

Stubbe’s is known for its forward-thinking solutions, quality and customer service and offers significant experience and expertise in providing optimal solutions for commercial, industrial, residential, and agricultural structures. 

We are seeking a Tekla Extensions Developer to build extensions: components, C# plugins, macros, and utilities for Tekla Structures that standardize modeling, accelerate drawing production, and deliver accurate data to Trimble Connect, ERP, and production systems. We welcome strong C# developers from adjacent CAD/BIM ecosystems; Tekla experience is a strong plus but not required—training and mentorship will be provided. 

This is a full-time, on-site position requiring effective collaboration with modelers/detailers, project managers, and software development teams.

THE DAY TO DAY

• Design and build custom tools for Tekla using C# (plugins with user-friendly dialogs, macros, utilities).
• Create drawing automations: templates/cloning, rule libraries, filters, dimensioning and view setup, and batch publishing.
• Standardize UDAs/property sets, naming conventions, Organizer/Task Manager setups, and implement data validation rules.
• Develop model health checks and fix tools (geometry/class/profile checks, assembly completeness, statuses).
• Build and maintain exports/integrations for ERP and production (e.g., CSV/JSON/XML, Unitechnik, BVBS, PXML, DXF, IFC) and Trimble Connect sync.
• Collaborate with the developers, detailers, and project managers to capture requirements, prototype, test, and roll out improvements.
• Maintain source control, code reviews, and CI builds; document tools and train users.
• Support Tekla environment upgrades and extension management; troubleshoot performance and data quality issues.

• Monitor adoption, gather feedback, and iterate to improve speed, reliability, and usability.

   

WHAT WE ARE LOOKING FOR

• Bachelor’s degree in computer science, Engineering, or equivalent experience.
• 3+ years professional C#/.NET development, including building desktop tools or plugins.
• UI development experience (WPF preferred; WinForms acceptable); familiarity with MVVM is an asset.
• Experience automating or extending at least one 3D/CAD/BIM platform (e.g., Revit, AutoCAD, Inventor/SolidWorks, or similar).
• Solid understanding of BIM concepts and model-to-drawing workflows (properties/UDAs, assemblies, naming conventions).
• Source control (Git) and modern development practices (code reviews, unit testing, CI/CD basics).
• Strong problem-solving and ability to translate user workflows into reliable tools; clear documentation and communication.