Inventory Specialist

STEM Boomerang; Rio Rancho (NM); On-site; USD 55,000 - 75,000; Full time

Benefits offered by this job

Employee Equity

4 weeks PTO

Medical - 100% employee covered

Dental & Vision coverage 90% employees

FSA/HSA options

Retirement 401k plan

Paid parental leave

Job summary

Castelion is a high‑velocity defense manufacturing company focused on accurate inventory management. You will ensure inbound, outbound, and cycle counts are precisely tracked, aligning physical stock with ERP data to support production schedules and continuous improvement initiatives.

The role requires hands‑on execution, attention to detail, and collaboration with Purchasing and Production teams in a fast‑paced environment. Experience with ERP systems and advanced Excel is essential.

Qualifications

• 5+ years of experience in material management or manufacturing operations.
• Experience with ERP systems in a manufacturing environment.
• Strong MS Office skills including Word, Excel, and PowerPoint.
• Experience handling hazardous materials.
• Advanced Excel skills for data analysis.
• Strong written and verbal communication.
• Hands-on, self-motivated with a continuous improvement mindset.
• Ability to work in a fast-paced environment.

Responsibilities

• Track and document inbound inventory per procedures.
• Coordinate shipping and document outbound materials.
• Maintain ERP stock levels and locations alignment.
• Own cycle count program and inventory accuracy.
• Perform physical inventory audits and reconcile discrepancies.
• Collaborate with Purchasing, Production, and cross-functional teams to resolve variances.
• Identify root causes and implement corrective actions to prevent recurrence.
• Support daily production kitting and material flow per monthly plan.
• Optimize storage locations for space and efficiency.
• Maintain documentation compliance and security.

Skills

Material Management

Manufacturing Operations

ERP systems

Microsoft Office

Advanced Excel

Data analysis

Communication

Continuous improvement

Attention to detail

Team collaboration

Tools

ERP software

MS Excel

Job description

Castelion was founded to restore America’s ability to field advanced weapons at speed and scale. Inspired by the engineering urgency of the WWII and Apollo eras, we combine rapid iteration, vertical integration, and scalable manufacturing to deliver affordable, high-performance strike systems. Our mission: rebuild industrial agility to strengthen national security and outpace evolving threats.

About the Role:

Inventory Specialist

As an Inventory Specialist, you'll play a critical role in maintaining the integrity, accuracy, and efficiency of inventory operations across physical and system environments. Working closely with Purchasing, Production, and Supply Chain teams, you will ensure that materials are accurately received, tracked, stored, and issued to support production schedules.

This role requires strong attention to detail, hands‑on execution, and a continuous improvement mindset. You will be responsible for ensuring that physical inventory aligns precisely with system data to enable reliable production planning and operational excellence in a fast‑paced manufacturing environment.

Responsibilities

• Track, receive, identify, and document inbound inventory in accordance with company procedures.
  
• Coordinate shipping activities and ensure outbound materials are accurately processed and documented.
  
• Maintain alignment between physical inventory stock levels and corresponding quantities and locations within the ERP system.
  
• Own inventory accuracy by executing and maintaining a robust cycle count program.
  
• Perform regular physical inventory audits and reconcile discrepancies between physical and system records.
  
• Collaborate with Purchasing, Production, and cross‑functional stakeholders to investigate and resolve inventory variances.
  
• Identify root causes of discrepancies and implement corrective actions to prevent recurrence.
  
• Support daily production kitting and ensure the production floor is supplied with required materials per the monthly production plan.
  
• Optimize physical storage locations to improve space utilization, material flow, and accessibility.
  
• Maintain compliance with company procedures, documentation standards, and security requirements.
  
• Lift, carry, handle, and transport materials up to 50 lbs unassisted as required.
  
• Support continuous improvement initiatives focused on inventory control, process efficiency, and data accuracy.
  

Requirements

Basic Qualifications

• 5+ years of experience in Material Management, Manufacturing Operations, or a related field.
  
• Experience working in ERP systems within a manufacturing environment.
  
• Strong proficiency in Microsoft Office tools including Word, Excel, and PowerPoint.
  
• Experience working with and handling hazardous materials.
  
• Advanced Excel skills with the ability to analyze and reconcile data.
  
• Strong written and verbal communication skills.
  
• Self‑motivated individual with a hands‑on approach and a demonstrated continuous improvement mindset.
  
• Clear communicator capable of working in a fast‑paced environment.
  

Preferred Skills and Experience

• Experience supporting inventory operations in aerospace, defense, or high‑tech manufacturing environments.
  
• Experience driving process improvements in inventory control or warehouse operations.
  
• Familiarity with structured cycle count programs and audit readiness practices.
  
• Experience supporting production kitting and material flow optimization.
  
• Professional certifications in supply chain or operations (e.g., APICS) are a plus.
  
• Active U.S. Government security clearance or eligibility to obtain one.
  
• Employee Equity: Meaningful equity forall full‑time employees - share value has increased 150x in three years
  
• Personal Time Off: Four (4) weeks of paidtime off to unplug, reset, and come back sharp—velocity matters,burnout doesn't
  
• Medical: We offer plans at 100% employeecovered and 80% of dependent coverage
  
• Dental & Vision: We cover 90%employees and 80% for dependents to ensure you and your family haveaccess to quality preventive and ongoing care
  
• FSA/HSA: To support long‑term health andfinancial resilience, we offer FSA and HSA options that allowemployees to set aside pre‑tax dollars for eligible medical anddependent care expenses
  
• Retirement: 401k plan offered to supportlong term financial growth along side high‑impact, high‑velocity work
  
• Paid Parental Leave: We support growingfamilies with meaningful time to bond and recover. Birthing parentsare eligible for up to 10 weeks of paid leave, while non‑birthingparents may take up to 4 weeks of paid leave. This time can be usedfor pre‑natal care, pregnancy, childbirth, and related medicalneeds—ensuring every parent has the support they need during thisimportant life moment.8‑weeks of paid parental leave for allparents. Additional paid pregnancy leave for CA employees
  
• Meals & Catering: Frequently cateredlunches and team meals, plus company‑covered meals when extra timeor effort is required
  
• Snacks & Beverages: Fully stockedkitchen with unlimited snacks and drinks to keep you fueledthroughout the day
  
• Performance & Fitness: $100 monthlyfitness stipend to support peak performance and health, both insideand outside of work
  
• EV Charging: Onsite electric vehiclecharging available for employees