CAD Plug In Developer

🔥 15 hours ago

🇺🇸 United States – Remote

💵 $120k - $185k / year

⏰ Full Time

🟡 Mid-level

🟠 Senior

🖥 Software Engineer

👻 Ghost score 20%

What it means: how likely this posting is sitting open without active hiring.How to read it: 60% or higher means we think this is a ghost. Lower scores are less of a worry.How we score it: age, reposts, open roles vs team size, how fast jobs close, and whether pay is listed.Fine print: an estimate from public data, not a judgment of the company. Real jobs can score high, so treat it as a hint, not a fact.

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Trilon Group

WebsiteLinkedInAll Job Openings

1001 - 5000 employees

💼 Consulting

📦 Logistics

🏗️ Construction

Consulting • Logistics • Construction

Trilon Group is a company that partners with North America's leading infrastructure consulting firms to deliver smart and sustainable infrastructure solutions. They focus on investing in talent, technology, and targeted mergers and acquisitions (M&A) to help these firms grow. Trilon Group brings together planning, engineering, and design firms to enhance the efficiency, affordability, and impact of delivering critical infrastructure projects. By doing so, they aim to promote opportunity, equity, sustainability, and safety within communities. Trilon supports infrastructure development by fostering strategic partnerships and providing additional capital and resources.

📋 Description

• Design, build and ship production plugins for AutoCAD / Civil 3D using .NET and ObjectARX, and for MicroStation / OpenX Designer using .NET and native SDKs. • Build end-to-end export flows from desktop plugin sign-in through platform upload, including OAuth 2.0 / OpenID Connect, token persistence, packaging, partial-failure handling and retries. • Build import flows that let users browse designs by project, select files and download them into CAD sessions through secure, time-limited links. • Extract and convert civil objects such as alignments, profiles, corridors, surfaces, pipe networks and feature lines into LandXML, IFC and GeoJSON while preserving data. • Build ArcGIS Pro add-ins and integrations that synchronize CAD spatial data with ArcGIS, including styles, spatial reference files and OGC-standard services. • Observe civil designers’ workflows and shape plugin interactions around their needs; validate output against real projects. • Add usage and error instrumentation to plugins. • Own installers, code signing, versioning across Autodesk and Bentley releases, and deployment to engineers’ machines. • Collaborate with platform engineers on REST and GraphQL APIs, storage and third-party service integrations. • Set plugin architecture and coding standards, review code and mentor developers on CAD and GIS APIs.

🎯 Requirements

• 6+ years of professional software development, with at least 4 years building and shipping CAD plugins or extensions used in production. • Strong C# and .NET, and working C/C++ for native CAD APIs. • Deep experience with the AutoCAD and Civil 3D APIs. • Hands-on experience with the MicroStation SDK or one or more of the Bentley OpenX Designer SDKs (OpenRoads, OpenRail, OpenSite, OpenComms). • Working knowledge of civil design workflows and processes, including roadway, drainage, grading or site design workflows. • Experience calling REST and GraphQL APIs from desktop applications, including OAuth 2.0 / OpenID Connect sign-in and secure token storage. • Experience with coordinate systems, map projections and spatial data formats (LandXML, GeoJSON, shapefiles, geodatabases). • ArcGIS Pro SDK, ArcGIS REST APIs, Arcade, or QGIS development. • PostgreSQL / PostGIS or other spatial databases.

🏖️ Benefits

• Trilon was formed with the vision of building the next Top 20 infrastructure consulting firm in North America by bringing together some of the nation’s best infrastructure consulting firms, focused on delivering practical and sustainable infrastructure solutions. • Trilon is backed by Alpine Investors, a PeopleFirst Private Equity Firm. • Trilon currently comprises 5,500+ staff across the US.