Location: Toronto, ON – Hybrid (3+ days/week in office) Job Type: Full-Time Travel Requirement: Approximately 10% Position Type: Net New Join the Future of Reliable Energy! Are you ready to shape the future grid? Hydrostor, a leading energy storage, technology and infrastructure company dedicated to developing utility-scale, long-duration energy storage solutions, is seeking a Lead Cost Estimator to join our team in Toronto, ON. We’re supporting the development of a more resilient electricity grid and invite you to be at the forefront of this work! Your Mission Hydrostor is seeking a Lead Cost Estimator to join our Technology team. In this senior individual contributor role, you’ll build and scale an integrated estimating capability spanning product development, technology evolution, and project execution. Reporting to the VP, Project Engineering, you will partner across Engineering, Product, Strategic Sourcing, and Early Development to deliver clear, decision-grade capital cost estimates. You’ll combine standardized product costs with site-specific scope, execution strategies, and regional dynamics to guide critical business decisions.



You’ll play a key role in early-stage project development, ensuring estimates inform investment decisions and shape supply chain strategy. This includes translating current, future, and emerging (R&D and new site) technologies into cost insights that drive product evolution and deployment. Your work will directly support project development and execution readiness across North America and Australia—ensuring our innovations translate into lasting cost competitiveness and scalable supply chain outcomes. Your Day-to-Day Adventures Build & Evolve Product-Based Costing Frameworks Develop and maintain Hydrostor’s baseline product cost model, including direct CAPEX, indirect costs, EPC/M services, escalation, and risk and contingency Define explicit boundaries between standard product scope and site-specific scope, including assumptions, exclusions, and interfaces Establish estimating structures aligned with AACE Guidelines and general project accounting and auditing standards, including application of WBS, CBS and cost

📌 Cost Estimator - Real Estate Development (Toronto)
🏢 Award-Winning Luxury Developer
📍 Toronto