Scheduler

Why Castelion, Why Now 

Castelion is moving incredibly fast to develop and deliver advanced defense systems at a time when execution matters more than ever. We believe focus, ownership, and excellence are decisive advantages - and we're building a world-class team to turn bold ideas into real capability. 

This is a rare opportunity to join at an early stage, where you'll have significant ownership, collaborate with exceptional teammates, and make a direct, measurable impact on our mission and the future of the company - regardless of your function.  

Scheduler

As a Scheduler on the Program Management team, you will be the heartbeat of schedule execution for Castelion's hypersonic weapons development. You will architect and maintain integrated master schedules that span concept design, engineering development, hardware production, flight test, and operational deployment. Working across engineering, manufacturing, and government-program stakeholders, you will keep aggressive timelines on track and ensure that every milestone is grounded in technical reality.

This role demands a strategic thinker who is equally comfortable with hands-on execution and thrives in a dynamic startup environment. This person can bring order to complexity while supporting multiple high-stakes government programs.

Responsibilities

• Integrated Master Scheduling: Build and maintain end-to-end schedules from early design through full-rate production and fielding of hypersonic weapon systems.
• Critical Path Management: Identify dependencies, risks, and recovery options to keep programs aligned with contractual commitments and customer milestones.
• Cross-Functional Coordination: Partner with engineering leads, program managers, and operations teams to ensure schedule accuracy and timely updates.
• Data-Driven Insights: Develop tools, dashboards, and reports that provide real-time visibility to leadership and government customers.
• Process Improvement: Gain deep understanding of Castelion's engineering and manufacturing workflows to drive schedule fidelity and continuous improvement.
• Rapid Response: Facilitate high-tempo reviews, update schedules in response to evolving priorities, and escalate risks before they become blockers.
• Customer Interface: Provide schedule briefings and status updates to U.S. Government stakeholders, supporting formal reviews and contractual reporting

Basic Qualifications

• Bachelors degree in engineering, operations management, business, or a related technical field.
• 3+ years of experience in project planning, integrated master scheduling, or operations engineering.
• Proficiency with Smartsheet, Microsoft Project, Primavera, or comparable scheduling tools.
• Strong grasp of critical-path analysis, risk assessment, and work breakdown structures.
• Demonstrated ability to manage multiple complex projects in a fast-paced, cross-functional environment.
• Exceptional attention to detail and clear written and verbal communication skills.

Preferred Skills and Experience

• Experience with first-of-a-kind engineering projects or defense hardware production.
• Familiarity with hypersonic or missile-system development life cycles.
• Background in government acquisition programs and contractual reporting (e.g., CDRLs, IMS).
• Experience integrating third-party schedules and external supplier data into a master plan.
• Active Top Secret/SCI clearance.

Castelion offers a generous benefits package. Please refer to the bottom of our Careers page for more details.  

Other Duties 

Please note this job description is not designed to cover or contain a comprehensive listing of activities, duties or responsibilities that are required of the employee for this job. Duties, responsibilities and activities may change at any time with or without notice. 

Additional Eligibility Requirements 

This position may require access to classified information or restricted U.S. Government sites, systems, or information, as determined by the Company and/or applicable U.S. Government requirements. If the position is so designated, your employment in the role may be contingent upon your ability to obtain and maintain the required U.S. Government security clearance or other government authorization, and to satisfy any citizenship or other eligibility requirements imposed by applicable law, regulation, executive order, or government contract requirements. You will be notified if and when such requirements apply. 

Affirmative Action/EEO Statement 

Castelion is an Equal Opportunity Employer. We are committed to providing equal employment opportunities to all applicants and employees without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability, genetic information, protected veteran status, or any other characteristic protected by applicable federal, state, or local law. 

Castelion is committed to providing reasonable accommodations to qualified individuals with disabilities throughout the application and hiring process. If you require a reasonable accommodation to complete an application, participate in the interview process, or otherwise participate in the hiring process, please contact [email protected]. Requests for accommodation will be considered on an individual basis and handled in accordance with applicable law. 

Castelion is committed to fostering a workplace where employment decisions are based on qualifications, business needs, and the ability to perform the essential functions of the role, with or without reasonable accommodation. 

EAR/ITAR Requirements 

This position requires access to export-controlled information, and as such, employment (or hiring of a contractor) is contingent upon the candidate’s ability to access all applicable export-controlled information without additional export licensing being required by the Bureau of Industry and Security and/or the Directorate of Defense Trade Controls.