Role: CAD Automation Engineer
Location: OMR, Chennai
Must have skills:
• Minimum 4+ years of experience in software application development
• Core developer proficiency in C# (.NET Framework and .NET multi-target SDK) — class libraries, COM interop, async/await patterns, and NuGet package management
• Hands-on experience with at least one CAD API / third-party automation SDK — SolidWorks API, NX Open, Creo Pro/TOOLKIT, or Inventor API
• Understanding of COM and in-process add-in architecture — how CAD connectors load into the host process, ribbon/command registration, and event lifecycle
• Experience with Windows application development — WinForms, WPF, or native Windows UI hosted inside a CAD add-in
• Working knowledge of REST API design and consumption — Web API, JSON serialisation, OAuth2 / JWT authentication against PLM endpoints
• Strong analytical and problem-solving skills — ability to diagnose crashes, memory leaks, and race conditions in long-running desktop processes




• Expertise in performance profiling and fine-tuning — CPU and memory profiling of Windows processes, identifying bottlenecks in CAD API traversal and PLM sync operations
• Experience with Git and branching workflows — feature branches, pull requests, and code review in Azure DevOps
• Experience in Agile / Scrum methodologies — sprint ceremonies, backlog grooming, and team-oriented delivery with QA and application engineers

Job Description
· Design, develop, and maintain CAD connector add-ins that integrate SolidWorks, NX, CATIA, Creo, and Inventor with PLM platforms including Aras Innovator and ProductCenter
· Implement CAD API automation — model traversal, BOM extraction, attribute read/write, file export, and event-driven callbacks within the CAD host process
· Build and maintain the C# connector framework — shared libraries for PLM communication, checkin/checkout, lifecycle transitions, and BOM sync
· Diagnose and resolve complex defects — crashes inside the CAD host process, COM interop

📌 CAD Automation Engineer (Chennai)
🏢 Essig PLM
📍 Chennai