Cost Accountant

Since its founding in 2015, 1X has been at the forefront of developing advanced humanoid robots designed for household use. Our mission is to create an abundant supply of labor via safe, intelligent humanoids. We strive for excellence in all we do, solving some of the hardest problems in robotics with the world’s most talented individuals. Every part of our robots is designed and produced in-house—from motor coils to AI—reflecting our vertically integrated approach. At 1X, you’ll own real projects, be recognized for your achievements, and rewarded based on merit. We are seeking a Cost Accountant to take ownership of cost accounting activities and help build a scalable, accurate cost infrastructure as we expand production of our humanoid robots. This role plays a critical part in ensuring precise inventory valuation, reliable COGS reporting, and high-quality cost visibility that empowers better operational and strategic decisions. The ideal candidate has strong manufacturing or hardware cost accounting experience, excellent analytical skills, and the ability to work seamlessly across Finance, Manufacturing, and Supply Chain. This is a highly impactful role in a fast-growing Series C environment where cost accuracy, process development, and cross-functional partnership are essential. RESPONSIBILITIES Own and maintain accurate inventory costing, including standard costs, BOMs, routings, factory labor allocation, tooling, overhead rates, tariffs, and inbound freight Analyze and reconcile inventory, WIP, and COGS as part of the monthly close process Prepare and review cost-related journal entries, accruals, reclasses, and adjustments Track, analyze, and explain cost variances; partner to identify root causes and corrective actions Collaborate with Supply Chain, Operations, Engineering, and Finance to ensure accurate cost inputs and develop scalable cost tracking processes Support physical inventory counts and cycle counts; investigate and resolve discrepancies Ensure appropriate capitalization of inventory-related costs in accordance with U.S. GAAP Support new product costing efforts, margin analysis, should-cost modeling, and operational decision-making Prepare documentation and schedules for internal and external audits Identify, recommend, and implement cost accounting process improvements as we scale