Senior Mechanical Engineer

Castelion; Allen (TX); On-site; USD 90,000 - 130,000; Full time

Job summary

Castelion seeks a Senior Mechanical Engineer to define, design, build, and test systems for advanced missile subsystems. This role requires substantial expertise in mechanical engineering, focused on collaborative problem-solving in high-stakes environments. Candidates should demonstrate innovative thinking and a commitment to the company mission within the defense sector.

Benefits

Long-term stock incentives

Comprehensive medical, vision, and dental insurance

Three weeks of paid time off per year

Qualifications

• 10+ years of professional experience in mechanical engineering required.
• Experience with RF and PCB/CCA domains is essential.
• Practical experience with missile/seekers preferred.

Responsibilities

• Develop physical concepts for missile subsystems.
• Conduct thermal and structural analysis for design.
• Create designs for lab and flight test fixtures.

Skills

Mechanical Engineering

Thermal Analysis

Structural Analysis

Problem-Solving

Education

Master’s degree in Mechanical Engineering

Tools

CAD Design

Job description

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.

Senior Mechanical Engineer

As a Senior Mechanical Engineer you will be at the forefront of defining, designing, building, and testing our radar seekers and other missile subsystems. This role requires a mechanical engineer with the breadth to engage across thermal, structural, assembly, design-for-test, etc. Your role involves close collaboration with fellow Castelion engineers across missile-level and seeker-level hardware domains. We seek intelligent, collaborative, and driven engineers who are passionate about problem-solving and eager to contribute to an extraordinary mission. If you thrive in challenging environments and are excited by the prospect of making a tangible impact, we want to hear from you.

Responsibilities

• System Synthesis: Working with broader seeker and missile teams, develop a physical concept for realizing subsystems.
• Electronics Packaging: Represent mechanical design aspects in the creation of the assembly flow, concept for thermal management, and integration into the next higher assembly.
• Thermal Analysis: Working closely with EE design team, develop solutions for keeping electrical components within thermal boundaries throughout mission. Simulate performance during design, and measure performance of heat sinks once fabricated.
• Structural Analysis: Basic structural analysis of components in missile flight environments.
• Test Fixtures: Create concepts and designs for a variety of lab and captive flight test fixtures.

Basic Qualifications

• Educational Background: Master’s degree in mechanical engineering.
• Technical Proficiency: 10+ years of professional mechanical engineering experience. Must have experience working the EEs in the domains of RF and PCB/CCA to realize producible, scalable solutions.

Preferred Skills and Experience

• System Experience: Practical experience designing systems that were fielded in series production. Practical experience with dense electronics packaging. Experience working on missiles/seekers is preferred.
• Technical Skills: This role requires broad mechanical domain knowledge, including detailed CAD design of complex parts, tolerance stack up analysis, thermal analysis, structural analysis, and deign-to-cost.
• Problem-Solving: Innovative problem-solving approach using first-principles thinking, including developing prototypes to validate key design concepts and quantify technical constraints.

All employees are granted long-term stock incentives as part of their employment as Castelion. All employees receive access to comprehensive medial, vision, and dental insurance, and the company offers three 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.