About Castelion

Castelion is bringing a new approach to defense development and production: one that focuses on short, iterative design cycles, rapid testing in development, and modern commercial manufacturing strategies for production at scale. We're designing, building, and testing next generation long range strike weapons systems to give America and its Allies a definitive edge and deter future conflicts.

Director of Manufacturing

We're seeking a Director of Manufacturing to lead our Rio Rancho based manufacturing operations — our modern Arsenal of Democracy — delivering hypersonic capability at scale to deter future conflicts. In this pivotal leadership role, you will build and lead a world‑class manufacturing operation, pushing for innovation and operational excellence that positions us as the nation's premier hypersonic producer.

Responsibilities

Define and execute strategy to scale all Rio Rancho based production including solid rocket motor manufacturing, integration, and test and validation (HITL/VITL) from prototype to scaled production
Recruit, train/develop, and scale a diverse, high performing 250+ employee manufacturing team (technicians, leaders, and manufacturing engineers)
Support the implementation and refinement of production software systems and tools (MES, ERP, PLM, etc)
Oversee day-to-day production and manufacturing operations — including production scheduling, capacity planning, resource allocation, inventory and supply-chain coordination, materials flow, and facility/equipment management
Forecast and manage operational and capital expenditures.
Develop, implement, and refine KPIs to measure performance.
Lead continuous process development and improvement efforts to optimize yield, throughput, manufacturing cost, and production reliability across all production lines
Establish and maintain a culture that prioritizes safety, quality, speed and continuous improvement.

Basic Qualifications

Bachelors degree in Engineering
10+ years in production/manufacturing operations or manufacturing engineering
5+ years in production/operations leadership
Demonstrated success in scaling a production operation from development/prototype to high volume production
Deep understanding of high-precision, complex aerospace hardware production — including metallic and composite fabrication, machining/welding/additive, tight-tolerance assembly, avionics, testing and acceptance, and NDE.
Skilled at interpreting raw data, identifying trends or anomalies, and translating findings into clear, data-informed strategies.
Demonstrated ability to lead, mentor, and develop a high-performing, cross-functional team — including production staff, manufacturing engineers, quality, supply-chain, and operations personnel — with emphasis on building culture, accountability, and continuous improvement
Excellent communication, interpersonal, and cross-functional collaboration skills to interface with engineering, quality, supply-chain, leadership, and possibly external partners or customers.
Demonstrated commitment to safety, quality, and compliance

Preferred Skills and Experience

Comfort operating in a fast-paced, high-stakes, high-reliability environment typical of aerospace/defense startups — able to make decisions under ambiguity, handle programmatic/contract demands, and adapt as priorities shift
Experience with manufacturing execution systems (MES/ERP/PLM), production data systems, material resource planning (MRP), and digital manufacturing workflows to manage operations, quality, change control, and configuration
Strong background in manufacturing engineering practices, operations excellence, and continuous improvement methodologies (e.g., Lean manufacturing, Six Sigma, process optimization, DFM/DFA, production flow and layout planning, tooling and automation)
Deep knowledge of aerospace manufacturing standards and regulatory frameworks (e.g., AS9100, NADCAP, applicable military/defense manufacturing standards), including quality management, audit readiness, compliance, and export-control/ITAR requirements
Extensive leadership experience (10–15+ years) in aerospace, defense, or high-complexity manufacturing, including several years at the sr. manager or director level leading cross-functional teams
Demonstrated experience with manufacturing or production of energetic materials or systems — including propellants, explosives, pyrotechnics, or related energetic payloads — with deep understanding of safety, process control, and qualification requirements

All employees are granted long-term stock incentives as part of their employment at Castelion. All employees receive access to comprehensive medical, vision, and dental insurance, and the company offers four weeks of paid time off per year.

Leadership Qualities

Bias to Action and Creative Problem Solving. Desire and experience questioning assumptions in ways that lead to break through ideas that are ultimately implemented. Successfully bring in applicable processes/concepts/materials from other industries to achieve efficiency gains. Ability to personally resolve minor issues in development without requiring significant support.

High Commitment, High Initiative. A successful candidate will have a genuine passion for Castelion's mission and consistently look for ways to contribute to the company's technical goals and prevent hardware blockers. Ability to work in a fast paced, autonomously driven, and demanding atmosphere. Strong sense of accountability and integrity.

Clear Communicator. Proactively communicates blockers. Trusted in previous roles to be voice of company with regulators, suppliers, gate keepers and customers. Capable of tactfully managing relationships with stakeholders to achieve company-desired outcomes without compromising relationships. Emails, IMs and verbal interactions are logical, drive clarity, and detailed enough to eliminate ambiguity.

ITAR Requirements:

To conform to U.S. Government export regulations, applicant must be a (i) U.S. citizen or national, (ii) U.S. lawful, permanent resident (aka green card holder), (iii) Refugee under 8 U.S.C. § 1157, or (iv) Asylee under 8 U.S.C. § 1158, or be eligible to obtain the required authorizations from the U.S. Department of State.

Employment with Castelion is governed on the basis of competence and qualifications and will not be influenced in any manner by race, color, religion, gender, national origin/ethnicity, veteran status, disability status, age, sexual orientation, gender identity, marital status, mental or physical disability or any other legally protected status.