Mechanical Engineer III - Thermal Systems

Sierra Space; Centennial (CO); On-site; USD 110,664 - 152,184; Full time

Benefits offered by this job

401(k) with 150% match

3 weeks paid time off

Medical, dental, and vision plans

Job summary

Sierra Space is looking for a Mechanical Engineer III in Centennial, Colorado. This role involves providing innovative solutions to technical problems and mentoring junior engineers. Ideal candidates will have a Bachelor's degree, 5+ years of experience, and proficiency in CAD tools.

The role offers a competitive pay range of $110,664.00 – $152,184.00, alongside benefits including medical, dental, and 401(k) with 150% match. Potential candidates are encouraged to apply to contribute to impactful missions in space.

Qualifications

• Bachelor’s degree in a related field or equivalent experience.
• Typically 5+ years of related experience.
• Expertise in mechanical engineering principles and related disciplines.

Responsibilities

• Provide imaginative and practical solutions to technical problems.
• Mentor junior engineers and foster their development.
• Analyze data related to mechanical systems and provide solutions.

Skills

Mechanical engineering technical standards

Analytical problem-solving

Communication and presentation skills

CAD tools proficiency (NX, SolidWorks)

Education

Bachelor’s degree in a related field

5+ years related experience

Tools

Engineering CAD tools

GD&T knowledge

Job description

Sierra Space Careers

At Sierra Space, we build the missions and systems that keep our world secure in the domain above Earth.

Sierra Space 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.

Our success is measured by the trust of those who rely on what we build and deliver, and our technologies keep the United States and its allies mission‑ready throughout space.

About the Role

The Mechanical Engineer III role focuses on providing imaginative and practical solutions to wide‑ranging technical problems that are consistent with organizational objectives. The position requires a complete understanding and application of technical principles, standards, theories, and concepts, as well as general knowledge of related disciplines.

The role involves working independently under general direction, taking ownership of discrete technical packages as a Responsible Engineer (RE), and providing guidance to less experienced engineers.

Key responsibilities include collecting and analyzing data, preparing detailed technical documentation, and frequently communicating with external stakeholders to support project requirements and objectives. You will identify and resolve design goals and challenges, take design engineering ownership of small programs or discrete technical packages (potentially as an RE), analyze data related to mechanical systems, propulsion, structures, structural analysis, or environmental systems, and provide imaginative, thorough, practical solutions. You will also mentor junior engineers, foster their technical and professional development, collaborate within cross‑functional teams, and meet project goals and deadlines.

About You

We seek individuals who are passionate about innovating beyond boundaries and relentlessly pursuing solutions that protect, preserve, and empower our mission.

Minimum Qualifications

• Bachelor’s degree in a related field (or equivalent work experience in lieu of degree or Masters +3 years experience).
• Typically 5+ years of related experience.
• Expertise in mechanical engineering technical standards, principles, theories, concepts, and techniques and general knowledge of related disciplines.
• Experience managing discrete technical packages as a Responsible Engineer (RE).
• Ability to provide guidance to entry‑level engineers.
• Ability to provide solutions to wide‑ranging technical problems that are imaginative, thorough, practical, and consistent with organization objectives.
• Ability to work under general direction to independently determine and develop approaches to solutions.

Preferred Qualifications

• Strong working knowledge of design, analysis, and test methods, tools, and processes related to mechanical systems, propulsion, structures, and/or environmental systems.
• Proficiency with engineering CAD tools such as NX, SolidWorks, or similar, including advanced understanding of detail drawing standards and GD&T.
• Experience with project management and the ability to manage multiple tasks simultaneously.
• Strong problem‑solving skills and attention to detail.
• Excellent communication and presentation skills.
• Ability to work independently and within a team, demonstrating effective collaboration skills.
• Demonstrated ability to meet deadlines and deliver high‑quality results.
• Working knowledge of manufacturing processes, material sciences, and their impact on mechanical systems.
• Experience with end‑item testing and validation, including the ability to design and execute complex test plans.

Compensation

Pay Range: $110,664.00 – $152,184.00

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.

Elevate Your Career

We are committed to your personal and professional development. We empower you to make profound and meaningful contributions and foster a vibrant culture of collaboration, where teamwork ignites breakthrough innovations.

We also offer a generous benefit package, including medical, dental, and vision plans, 401(k) with 150% match up to 6%, life insurance, 3 weeks paid time off, and more.

Equal Opportunity Employment

Sierra Space Corporation is an equal opportunity employer and is committed to working with and providing reasonable accommodations to applicants with disabilities. If you need special assistance or a reasonable accommodation related to applying for employment with Sierra Space or at any stage of the recruitment process, please contact us.