Design wearable experiments and dependable data systems for Bells of Steel, working hands-on with strength training technology in Calgary. This Senior Technical Lead contract connects sensor research, data engineering, and coaching product development. You will collaborate with personal trainers, biomechanical engineers, and the founder to test affordable sensors, establish reproducible baselines, and understand uncertainty. You will also own the existing application, including React Native/Expo, TypeScript, Supabase/Postgres, local-first data, monitoring, and release operations. Key Responsibilities:





Design reference comparisons and easy experimental baselines Build sensor ingestion and failures teams can observe Evaluate models with uncertainty and honest release limits Add confidence checks and manual coaching fallbacks Keep experiment records and technical decisions reproducible Requirements:

Applied ML evaluation experience influencing product decisions Python, statistics, signal processing, and time-series fundamentals Backend, SQL, API, authorization, and data pipeline expertise Production mobile development and launch support experience Understanding of lifting, progression, RPE, and rest periods Own Bells of Steel’s wearable evidence and application systems with practical machine learning and strength-training understanding.

📌 Senior Wearable Data Engineering Lead (Calgary)
🏢 Bells of Steel
📍 Calgary