Senior Computer Vision Engineer- Canada

About Us: STACK is a leading provider of cloud-based construction estimating and takeoff software solutions, committed to helping businesses transform through innovative solutions. We pride ourselves on fostering a collaborative, dynamic environment where team members have the opportunity to grow and make a real impact. About the Role: We are hiring a Senior Computer Vision Engineer to improve our computer vision system for construction documents. This role focuses on detection and segmentation quality, geometric accuracy, and production-grade pipelines that work reliably with messy real-world PDFs and drawings. What You’ll Do: Design, build, and improve end-to-end detection and segmentation pipelines for document images. Improve document ingestion for PDFs and other unstructured files, including parsing, rendering, and handling of multi-page and multi-view content. Increase model accuracy, boundary and geometric quality, and overall reliability of predictions for downstream use. Integrate modern detection and segmentation models into production workflows and build the post-processing that turns model output into structured, usable geometry. Define evaluation metrics, investigate failure cases, and drive continuous quality improvements. Optimize latency, reliability, and cost across the inference and post-processing stack. Own training infrastructure, dataset curation, annotation quality, and continuous-improvement loops. Make architectural decisions and own system quality end to end. What You Bring: 5+ years experience building computer vision systems: detection, segmentation, or structured geometry extraction, used high volume in production. Experience working with messy, real-world image data or large unstructured visual datasets. Strong understanding of detection and segmentation tradeoffs, including model architecture choices, training data design, and post-processing. Ability to measure system performance with evaluation, testing, and production metrics. Abili