Build and maintain a production SaaS web product across the full stack: React/TypeScript front end (including 3D viewer components), NestJS back end and public APIs, integrations with ML services and third parties. Ensure code quality, security (auth, encryption, auditability), testing, and CI/CD. Collaborate with Product, CTO, and ML team to translate requirements into maintainable technical solutions.

Develop, train, and deploy computer-vision and document-understanding models for technical drawings (detection, segmentation, OCR, layout understanding). Define data strategy and annotation, build evaluation pipelines, optimize models for production (latency, cost, stability), and collaborate with ML and engineering teams to deliver robust, measurable automation.