Senior Master Planner

iRhythm Technologies, Inc.•Orange County, CA

4d•$103,000 - $134,000•Hybrid

About The Position

The Senior Master Planner is a critical member of iRhythm’s Global Supply Chain organization, responsible for leading the development and governance of integrated supply plans across manufacturing, materials, capacity, inventory, and customer demand requirements. The role connects Demand Planning, Procurement, Manufacturing Operations, Quality, Distribution, Finance, and Commercial teams to establish executable plans that support customer service, operational performance, inventory health, and financial objectives. The planner anticipates constraints, leads scenario analysis, recommends business tradeoffs, and drives coordinated decisions across the end-to-end supply chain. This role leads master production and supply planning across product families, manufacturing sites, suppliers, and distribution nodes over short-, mid-, and long-term horizons. It develops capacity-constrained plans, leads supply reviews and executive planning discussions, and provides decision support on supply, inventory, capacity, service, cost, and risk. It also governs planning parameters and data, supports product and supplier transitions, drives root-cause analysis and continuous improvement, and strengthens planning practices and organizational capability. This is a hybrid position requiring the employee to be onsite at the IOC location at least three days per week. The listed location is Orange County.

Requirements

At least 8 years of progressive experience in master planning, production planning, supply planning, inventory planning, materials management, integrated business planning, or related supply chain roles.
Experience leading integrated production or supply plans across multiple products, manufacturing lines, suppliers, sites, or distribution nodes in the medical device industry.
Demonstrated experience leading cross-functional supply reviews, resolving complex constraints, and influencing senior-level decisions involving capacity, inventory, service, cost, and risk tradeoffs.
Experience with advanced capacity modeling, supply scenarios, material requirements planning, inventory optimization, and executive-level decision support.
Experience with ERP, MRP, advanced planning, business-intelligence, and data-analysis tools; advanced Microsoft Excel capability is required.
Expert knowledge of master scheduling, supply planning, capacity planning, inventory management, production planning, and materials management.
Deep understanding of MRP, bills of material, lead times, planning parameters, manufacturing operations, inventory policies, and replenishment methodologies.
Advanced analytical and problem-solving skills, including multi-site capacity modeling, supply-risk assessment, inventory optimization, scenario planning, root-cause analysis, and exception management.
Strong knowledge of forecast consumption, safety stock, service-level management, schedule attainment, capacity utilization, backlog, and end-to-end supply-chain performance metrics.
Ability to evaluate complex planning scenarios, quantify business tradeoffs, and translate operational constraints into clear recommendations and decisions.
Executive-level written and verbal communication skills, including the ability to present planning risks, scenarios, recommendations, and required decisions to senior leaders.
Strong facilitation, stakeholder-management, mentoring, and influencing skills in a matrixed environment.
High attention to detail, ownership, prioritization, and execution discipline across multiple planning horizons and competing enterprise priorities.
Continuous-improvement mindset and ability to establish governance, standardize work, improve data quality, and increase end-to-end planning transparency and accountability.
Comfort leading through ambiguity, changing priorities, and incomplete information while maintaining sound judgment and a patient-first perspective.

Nice To Haves

Bachelor’s degree or higher education is preferred but not required.

Responsibilities

Lead the master production and supply plan across product families, manufacturing sites, suppliers, and distribution nodes over short-, mid-, and long-term planning horizons.
Develop and govern capacity-constrained supply plans that balance customer demand, inventory targets, manufacturing capabilities, material availability, financial objectives, and business priorities.
Lead monthly supply reviews and executive planning discussions on supply, inventory, capacity, service, cost, and risk tradeoffs.
Partner with Demand Planning and Finance to reconcile demand, supply, and financial assumptions and align the consensus forecast, operational plan, and business outlook.
Evaluate manufacturing capacity, labor, supplier, material, quality, lead-time, and inventory constraints to identify enterprise risks and opportunities.
Lead scenario modeling and mitigation planning for shortages, capacity constraints, inventory imbalances, backlog, product transitions, and customer-service risks.
Drive coordinated planning decisions across Procurement, Materials, Manufacturing, Distribution, Quality, Customer Care, Engineering, Finance, Commercial, and other stakeholders.
Lead supply-planning readiness for new product introductions, product transfers, supplier transitions, engineering changes, geographic expansion, and end-of-life activities.
Govern planning parameters, calendars, item and bill-of-material data, lead times, inventory policies, and documented assumptions.
Prepare and present executive-ready summaries of supply outlook, inventory trends, capacity constraints, material risks, scenarios, mitigation actions, and decisions required.
Lead root-cause analysis for significant supply, schedule, inventory, and planning misses and drive sustainable improvements across processes, systems, data quality, and operating mechanisms.
Establish planning governance, standard work, performance metrics, exception management, and master-planning best practices; coach planners and strengthen organizational planning capability.
Operate in accordance with applicable quality, regulatory, compliance, and company requirements, and proactively escalate risks that could affect customers or patients.