Software Developer (CAD Automation, C#)

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 collaborative 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 failures, async deadlocks, and performance bottlenecks in large assembly traversal

·      Profile and optimise connector operations — reduce memory footprint, improve traversal speed, and minimise UI blocking during PLM sync on large datasets

·      Use AI tools to accelerate development — code generation, crash analysis, documentation, and code review workflows

·      Write unit and integration tests; collaborate with the QA team to define test coverage for connector workflows and support automation efforts

·      Collaborate with development Scrum teams through all stages of Agile development — planning, implementation, code review, and release

·      Provide technical expertise and application support to Application Engineers and Project Engineers working directly with customer deployments

·      Research and evaluate new CAD API capabilities, .NET runtime updates, and AI tooling relevant to connector development