Propulsion Engineer III

Posted 2 Hours Ago
Be an Early Applicant
Madison, WI, USA
In-Office
101K-138K Annually
Senior level
Aerospace • Hardware • Information Technology • Robotics • Defense • Utilities
Defending Today. Defining Tomorrow.
The Role
Lead design, analysis, testing, and validation of aerospace propulsion systems. Serve as Responsible Engineer on technical packages, collaborate with multidisciplinary teams, mentor junior engineers, develop technical standards, and produce documentation to ensure performance, reliability, and regulatory compliance.
Summary Generated by Built In
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.

We are mission-driven, and together, we are an extraordinary team.

About the RoleThe Propulsion Engineer III will play a critical role in the design, development, and testing of advanced propulsion systems for aerospace applications. This position requires a deep understanding of propulsion engineering principles, including fluid dynamics, thermodynamics, and combustion processes. The successful candidate will be responsible for leading complex projects, conducting detailed analyses, and ensuring the reliability and performance of propulsion systems. This role involves close collaboration with multidisciplinary teams, including mechanical, electrical, and systems engineers, to deliver innovative solutions that meet stringent performance and safety requirements. The Propulsion Engineer III will also be expected to stay current with emerging technologies and industry trends, contribute to the development of technical standards, and mentor junior engineers. Strong analytical skills, attention to detail, and the ability to communicate complex technical concepts effectively are essential for this role.
In this role, you will provide solutions to wide-ranging technical problems that are imaginative, thorough, practical, and consistent with organizational objectives. Under general direction, you will independently determine and develop approaches to solutions while serving as the owner of discrete technical packages as a Responsible Engineer (RE). You will work across all technical disciplines, providing guidance and mentorship to less experienced engineers to foster their professional growth. Frequent communication outside of Sierra Space regarding routine business will be an essential part of the role. Your responsibilities will include designing and analyzing propulsion systems and components, conducting performance testing and validation of propulsion systems, and developing and implementing technical standards and best practices. Collaborating with cross-functional teams, you will ensure project success by preparing technical reports and documentation and ensuring compliance with industry standards and regulations.About You

Our mission is driven by an unyielding commitment to advancing space-based technology in service of our customers and safeguarding national security. We seek individuals who are passionate about innovating beyond boundaries and relentlessly pursuing solutions that protect, preserve and empower – to join us in this critical mission.  

We’re looking for team members who align with our values, mission and goals – while also meeting the minimum qualifications below. The preferred qualifications are a bonus, not a requirement.

Minimum Qualifications:
  • Requires bachelor's degree in a related field (or equivalent work experience in lieu of degree or master's +3 yrs experience).

  • Typically, 5+ years of related experience.

  • Expertise in Propulsion engineering.

  • Experience managing discrete technical packages as a Responsible Engineer (RE).

  • Complete understanding and application of technical principles, standards, theories, and concepts.

  • General knowledge of related disciplines.

Preferred Qualifications:
  • Proficiency with propulsion system design and analysis tools such as ANSYS Fluent, CFX, or similar CFD software.

  • Proficiency with NX and SolidWorks.

  • Experience with propulsion system testing, including the use of test stands, instrumentation, and data acquisition systems.

  • Strong background in thermodynamics, fluid dynamics, and combustion processes.

  • Familiarity with propulsion system integration and performance optimization.

  • Experience with finite element analysis (FEA) tools such as Abaqus or NASTRAN.

  • Knowledge of industry standards and regulations related to propulsion systems, such as NASA, FAA, or DoD standards.

  • Experience with project management tools and methodologies, such as Agile or PMP certification.

  • Proficiency in programming languages such as MATLAB, Python, or C++ for simulation and data analysis.

  • Strong technical writing skills for preparing detailed technical reports and documentation.



Compensation:

Pay Range:

$100,604.00 - $138,349.25

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.

IMPORTANT NOTICE:

To conform to U.S. Government international trade regulations, applicant must be a U.S. Citizen, lawful permanent resident of the U.S., protected individual as defined by 8 U.S.C. 1324b(a)(3), or eligible to obtain the required authorizations from the U.S. Department of State or U.S. Department of Commerce.

Elevate Your Career

At Sierra Space, 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.

Sierra Space is an industry-leading space and defense technology company providing satellites, spacecraft, and enabling mission systems and components. We deliver mission-proven technologies to our customers that safeguard our nation, protect space-based assets and enable space exploration.

Application Deadline: This role will remain posted until a qualified pool of candidates is identified.

Please note: Sierra Space does not accept unsolicited resumes from contract agencies or search firms. Any unsolicited resumes submitted to our website or to Sierra Space team members not through our approved vendor list or Talent Acquisition will be considered property of Sierra Space, and we will not be obligated to pay any referral fees.

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.

Skills Required

  • Bachelor's degree in a related field (or equivalent work experience or master's +3 yrs experience).
  • Typically 5+ years of related experience.
  • Expertise in propulsion engineering.
  • Experience managing discrete technical packages as a Responsible Engineer (RE).
  • Complete understanding and application of technical principles, standards, theories, and concepts.
  • General knowledge of related disciplines.
  • Must be a U.S. Citizen, lawful permanent resident, protected individual, or eligible to obtain required authorizations from the U.S. Department of State or Department of Commerce.
  • Proficiency with propulsion system design and analysis tools such as ANSYS Fluent, CFX, or similar CFD software.
  • Proficiency with NX and SolidWorks.
  • Experience with propulsion system testing, including test stands, instrumentation, and data acquisition systems.
  • Strong background in thermodynamics, fluid dynamics, and combustion processes.
  • Familiarity with propulsion system integration and performance optimization.
  • Experience with FEA tools such as Abaqus or NASTRAN.
  • Knowledge of industry standards and regulations related to propulsion systems (e.g., NASA, FAA, DoD).
  • Experience with project management tools and methodologies (e.g., Agile, PMP).
  • Proficiency in MATLAB, Python, or C++ for simulation and data analysis.
  • Strong technical writing skills for preparing detailed technical reports and documentation.

What the Team is Saying

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Sierra Space Compensation & Benefits Highlights

  • Retirement Support Job postings indicate a 150% company match up to 6% of pay, which is comparatively strong among aerospace/tech employers. Other public materials have shown "up to 8%", so confirming the current formula is advisable.
  • Healthcare Strength Current postings list medical, dental, and vision as part of a "generous benefit package." Life insurance and related coverages are included alongside the core health plans.
  • Wellbeing & Lifestyle Benefits Employer profiles indicate mental‑health/EAP options and other typical wellness add‑ons. Additional perks such as company‑sponsored family events and access to Rocket Lawyer and ID Watchdog are also noted.

Sierra Space Insights

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The Company
HQ: Louisville, CO
1,600 Employees
Year Founded: 2021

What We Do

Securing The Freedom of Operations Headquartered in Colorado, Sierra Space is a mission-proven Defense Tech company delivering satellite platforms, critical subsystems, reusable spaceplanes, hypersonic technologies, propulsion systems, and infrastructure for the nation’s most critical missions. With more than three decades of heritage and a record of flight-proven success in space, Sierra Space is trusted by U.S. National Security, Civil customers, and global allies. Our technologies safeguard our nation, sustain human exploration in space, and ensure the freedom of operations beyond Earth. Sierra Space is defining the new era of Space Defense, strengthening deterrence today and preserving freedom of action for generations to come.

Why Work With Us

At Sierra Space, you’ll find a supportive, respectful and upbeat culture where your opinions matter and your personal contributions have impact. If you’re thinking about your own next frontier, we’d love to help you explore it.

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Sierra Space Offices

OnSite Workspace

Typical time on-site: None
HQLouisville, CO
Durham, NC
Madison, WI
Exploration Park
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