Sr Mechanical Engineer - Propulsion

At Sierra Space, we build the missions and systems that keep our world secure in the domain above Earth. Our team members share a spirit of innovation and collaboration and a belief that we can deliver on the boldest missions in space today. Together with our customers, we aim to safeguard our nation, sustain human presence in space, and secure the freedom of operations in low Earth orbit and beyond.

About The Role

The Sr Mechanical Engineer role has three primary requirements: knowledge of electric propulsion systems, an active TS/SCI security clearance, and vendor management skills. The engineer in this position will focus on providing solutions to complex technical problems, working with considerable latitude in determining technical objectives, and guiding the successful completion of major programs. This role is critical in ensuring high technical standards, achieving project goals, and supporting the overall mission of the organization.

In this role, you will lead design and analysis efforts for multiple and complex design activities, which may include serving as a Responsible Engineer (RE). You will manage all aspects of system and component design, development, and integration, including trade studies, layouts, architecture definition, system testing, verification, and troubleshooting. By analyzing and interpreting data from tests and simulations, you will inform design decisions and identify areas for improvement. You will provide solutions to complex technical problems that require ingenuity and creativity, while interacting with senior personnel across the organization on significant technical matters.

Responsibilities

• Lead design and analysis efforts for multiple and complex design activities, potentially serving as a Responsible Engineer (RE).
• Manage all aspects of system and component design, development, and integration, including trade studies, layouts, architecture definition, system testing, verification, and troubleshooting.
• Analyze and interpret data from tests and simulations to inform design decisions and identify areas for improvement.
• Provide solutions to complex technical problems that require ingenuity and creativity.
• Represent the organization as the prime technical contact on contracts and projects with limited oversight.
• Mentor junior engineers, providing guidance on their technical and professional development.
• Collaborate with cross-functional teams to develop and refine system designs that meet performance and safety requirements.
• Prepare detailed technical documentation and reports to communicate findings and support project objectives.

Requirements

• Bachelor's degree in a related field (or equivalent work experience in lieu of degree or Masters +6 years experience).
• Typically 8+ years of related experience.
• Demonstrated expertise in Mechanical Engineering technical standards, principles, theories, concepts, and techniques.
• Expertise to provide solutions to complex technical problems which require the regular use of ingenuity and creativity.
• Ability to work effectively without appreciable direction when given considerable latitude in determining technical objectives and viable solutions.
• Active Top Secret U.S. Security Clearance (TS/SCI) is required.
• U.S. Citizenship status is required.

Preferred Qualifications

• Advanced degree in Mechanical Engineering, Aerospace Engineering, or a related field.
• Extensive experience with design, analysis, integration, and test methods, tools, and processes related to mechanical, propulsion, structures, fluids, and/or environmental systems at the subsystem and component level.
• Proficiency with advanced engineering software tools such as NX, SolidWorks, ANSYS, or similar, including advanced understanding of detail drawing standards and GD&T.
• Demonstrated ability to manage multiple high-stakes projects simultaneously and meet challenging deadlines.
• Strong problem-solving skills and attention to detail, with a proven track record of innovative solutions in mechanical engineering.
• Superior communication and presentation skills, capable of conveying complex technical concepts to diverse audiences, including senior management and external stakeholders.
• Ability to work independently and within a team, demonstrating strong leadership and collaboration skills.
• Advanced knowledge of manufacturing processes, material sciences, and their impact on mechanical systems.
• Experience with end-item or vehicle-level testing and validation, including the ability to design and execute complex test plans.
• Knowledge of chemical propulsion systems.

Pay

Pay Range: $137,386.00 - $188,926.75. Your actual base compensation will be determined on a case-by-case basis and may vary based on job-related knowledge and skills, education, experience, internal equity, and market competitiveness.

Benefits

• Medical, dental, and vision plans.
• 401(k) with 150% match up to 6%.
• Life insurance.
• 3 weeks paid time off.