Senior Legal Counsel, Government Contracts

Castelion Corporation • Washington, DC

15h

About The Position

Castelion is moving incredibly fast to develop and deliver advanced defense systems at a time when execution matters more than ever. We believe focus and technical excellence are decisive advantages - and we are building a team that can deliver real capability, not just concepts.
This is a rare opportunity to join at an early stage, where your work will directly shape critical systems, influence major technical decisions, and have immediate, real-world impact.
Senior Legal Counsel, Government Contracts
Castelion is seeking an experienced Senior Legal Counsel, Government Contracts to serve as a critical partner to our engineering, program management, and business development teams. This role will own the full lifecycle of U.S. government contracting matters, enabling the company to move quickly and compliantly as we scale advanced defense programs.

Requirements

• JD from an accredited law school and active bar membership
• 5+ years of experience in government contracts law
• Deep expertise in FAR/DFARS and DoD contracting environments
• Experience at a top law firm, in-house at a defense contractor, or within government
• Strong business judgment with the ability to operate autonomously
• Proven ability to support high-tempo engineering and program teams
• The ability to obtain and maintain a DoD clearance

Nice To Haves

• Experience with classified programs and export controls (ITAR/EAR)
• Background supporting hardware, aerospace, or defense systems
• Familiarity with cost accounting standards (CAS) and compliance frameworks

Responsibilities

• Lead legal strategy and execution across U.S. government contracts, including DoD programs (FAR/DFARS)
• Advise on proposal development, contract negotiation, and program execution
• Interpret and apply complex regulatory requirements across contracting, procurement, and compliance
• Partner with business development to structure deals and shape acquisition strategies
• Support audits, investigations, and interactions with government stakeholders
• Develop scalable processes and playbooks to support rapid company growth
• Provide pragmatic, risk-balanced guidance in a fast-paced, hardware-driven environment

Benefits

• All full-time employees are granted meaningful long-term equity, sharing in the company's significant growth trajectory.
• We offer four (4) weeks of paid time off, ten (10) company-paid holidays, and comprehensive health benefits - including 100% employee-covered medical and strong dependent coverage, along with dental and vision plans.
• We also provide paid parental leave to support growing families, a $100 monthly fitness stipend to promote health and performance, and onsite EV charging for convenience.
• In addition, employees enjoy perks like catered meals, company-covered food during high-demand periods, and a fully stocked kitchen to stay fueled throughout the day.

What This Job Offers

• Job Type: Full-time
• Career Level: Senior
• Education Level: No Education Listed