Senior Technical Recruiter

Castelion Corporation•Torrance, CA

About The Position

As a Senior Technical Recruiter at Castelion, you will help build an elite engineering and technical organization developing and manufacturing next-generation hypersonic defense systems. You will own full-cycle recruiting for complex, competitive technical roles and partner directly with engineering leaders to identify, engage, and hire exceptional talent. This hands-on role requires building pipelines from scratch, navigating competitive talent markets, creating activity, and finding candidates who may not be actively looking. The role may require access to classified information or restricted U.S. Government sites, systems, or information. If designated, employment may depend on obtaining and maintaining the required security clearance or other government authorization, and meeting applicable citizenship or eligibility requirements. The position also requires access to export-controlled information; employment is contingent on being able to access applicable information without additional export licensing. Castelion is an Equal Opportunity Employer and provides reasonable accommodations to qualified individuals with disabilities throughout the application and hiring process. Duties and responsibilities may change at any time.

Requirements

At least 5 years of full-cycle technical recruiting experience, preferably in aerospace, defense, hardware, advanced manufacturing, robotics, or high-growth technology environments.
Demonstrated success recruiting highly specialized engineering and technical talent in competitive markets.
Ability to independently manage multiple complex requisitions while maintaining strong candidate pipelines and consistent hiring outcomes.
Strong sourcing capabilities, including experience engaging passive candidates through LinkedIn Recruiter and other research tools.
Experience partnering directly with senior engineering leaders and technical hiring managers.
Excellent communication, relationship-building, negotiation, and closing skills.
Strong organization and attention to detail, with the ability to work effectively in a fast-paced, evolving environment.
Demonstrated ownership, urgency, resourcefulness, and bias toward action.
Ability to access applicable export-controlled information without additional export licensing being required.
If the position is designated as requiring it, ability to obtain and maintain required U.S. Government security clearance or authorization and satisfy applicable citizenship or eligibility requirements.

Nice To Haves

Experience recruiting in defense, aerospace, hypersonics, space, missile systems, or advanced hardware.
Experience hiring across mechanical, electrical, RF, radar, software, firmware, GNC, propulsion, and systems engineering disciplines.
Experience scaling a technical organization within a venture-backed startup or rapidly growing company.
Familiarity with engineering talent markets in Southern California, Texas, and other major aerospace and defense hubs.
Experience developing talent maps, competitive intelligence, and proactive sourcing strategies for difficult-to-fill positions.
Experience using Greenhouse or another modern applicant tracking system.

Responsibilities

Own full-cycle recruiting for specialized engineering positions, from initial sourcing through offer acceptance.
Partner with engineering leaders and hiring managers to understand technical requirements, set hiring priorities, and develop targeted recruiting strategies.
Identify, engage, and attract passive candidates through creative sourcing, market mapping, referrals, and direct outreach.
Build and maintain talent pipelines across mechanical engineering, electrical engineering, software, firmware, RF, radar, GNC, propulsion, systems engineering, and other specialized technical functions.
Develop a deep understanding of competitive talent markets, including defense primes, startups, aerospace companies, and adjacent technology industries.
Lead candidate calibration and evaluation discussions, aligning technical qualifications and demonstrated execution with organizational values.
Drive recruiting processes with urgency, maintain candidate engagement, and minimize delays between interview stages and hiring decisions.
Provide a strong candidate experience through thoughtful communication, preparation, transparency, and follow-through.
Use recruiting data and market intelligence to identify pipeline gaps, assess sourcing effectiveness, and improve hiring strategies.
Hold hiring teams accountable for recruiting timelines, feedback, and interview commitments.
Contribute to the development and continuous improvement of recruiting processes, tools, and operating standards.