Job Description
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 Sr Mission Design & Analysis Engineer leads mission design via modeling simulation and analysis. The Sr Mission Design & Analysis Engineer leads teams to define mission parameters and derive driving mission requirements as part of a novel spacecraft development. The Sr Mission Design & Analysis Engineer understands and parses mission objectives to produce relevant mission modeling and simulation data using analytical methods and mission level modeling and simulation techniques. They create constellation and system-of-systems models to evaluate mission performance parameters developing novel tools of limited complexity as required then communicate those results to the broader design team and customers. The Sr Mission Design & Analysis Engineer maintains and updates the system performance models as required to verify and validate system performance throughout system development.In this role you will lead the analysis modeling and simulation of system and system-of-systems performance parameters to drive constellation design payload selections and vehicle sizing. You will oversee system modeling efforts on medium-sized teams including the collection and analysis of data related to mission design and system performance. Additionally you will develop novel modeling and analysis tools to produce relevant performance results as required represent the mission viewpoint and present mission performance models and analysis results to the development team and customers. You will lead analysis-based mission performance validation and verification efforts prepare detailed technical documentation and reports to communicate findings and support project objectives and work collaboratively with team members to achieve project goals and meet deadlines. Furthermore you will work and communicate effectively with technical and specialty subject matter expert engineers to drive mission design and analysis products ensuring high-quality deliverables and project success.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 Masters +8 yrs experience).
- Typically 10+ years of related experience (or Masters + 8 yrs experience).
- An active Top Secret with SCI eligibility U.S. Security Clearance is required.
- Demonstrated expertise in mission design mission modeling and simulation techniques and mission analysis.
- Demonstrated expertise in mission level objectives requirements and Design Reference Mission (DRM) development.
- Ability to derive requirements and design drivers from system modeling and simulation results.
- In-depth knowledge of systems design systems development and technical risk identification and management strategies.
- Exceptional analytical and computational skills.
- Demonstrated ability to work and communicate with technical and specialty subject matter expert engineers to drive systems engineering products.
- Advanced degree in Engineering Physics or a related field.
- Extensive experience with common industry system & mission modeling tools and languages such as STK FreeFlyer Cameo EA SysML Matlab Python or similar.
- Strong understanding of orbital mechanics and astrodynamics.
- Ability to independently research adapt and/or develop mission analysis tools to solve novel problems.
- Ability to trade mission attributes to achieve design-to-cost and schedule constraints while maintaining mission objectives.
- Experience with spacecraft systems and subsystems space mission sensors payloads and ground systems.
- Experience with electronic warfare space domain awareness electro-optical sensing and mission communications.
- Experience evaluating sensor or weapon system performance on space-based platforms.
- Experience with DoD modeling environments (Brawler Suppressor AFSIM EADSIM ESAMS etc).
- Experience leading teams to achieve project results.
- Familiarity with preparation and development of project estimates technical proposals and program cost and schedule management.
- Excellent communication and presentation skills.
- Ability to work independently and as part of a team.
- Demonstrated ability to meet deadlines and deliver high-quality work.
Compensation:
Pay Range:
$143700.00 - $197608.50Your 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:
This position requires current/active Top Secret with SCI eligibility U.S. Security Clearance. U.S. Citizenship status is required as this position needs an active U.S. Security Clearance for employment. Non-U.S. Citizens may not be eligible to obtain a security clearance. The Department of Defense Consolidated Adjudications Facility (DoD CAF) a federal government agency handles the adjudicative aspects of the security clearance eligibility process for industry applicants. Adjudicative factors which affect the outcome of the eligibility determination include but are not limited to allegiance to the U.S. foreign influence foreign preference criminal conduct security violations and illegal drug use.
Elevate Your CareerAt 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 Masters +8 yrs experience)
- Typically 10+ years of related experience (or Masters +8 yrs experience)
- Active Top Secret with SCI eligibility U.S. Security Clearance
- Demonstrated expertise in mission design mission modeling and simulation techniques and mission analysis
- Demonstrated expertise in mission level objectives requirements and Design Reference Mission (DRM) development
- Ability to derive requirements and design drivers from system modeling and simulation results
- In-depth knowledge of systems design systems development and technical risk identification and management strategies
- Exceptional analytical and computational skills
- Demonstrated ability to work and communicate with technical and specialty subject matter expert engineers
- Advanced degree in Engineering Physics or a related field
- Experience with system and mission modeling tools and languages such as STK FreeFlyer Cameo EA SysML Matlab Python
- Strong understanding of orbital mechanics and astrodynamics
- Ability to independently research adapt and/or develop mission analysis tools
- Ability to trade mission attributes to achieve design-to-cost and schedule constraints
- Experience with spacecraft systems and subsystems space mission sensors payloads and ground systems
- Experience with electronic warfare space domain awareness electro-optical sensing and mission communications
- Experience evaluating sensor or weapon system performance on space-based platforms
- Experience with DoD modeling environments (Brawler Suppressor AFSIM EADSIM ESAMS)
- Experience leading teams to achieve project results
- Familiarity with preparation and development of project estimates technical proposals and program cost and schedule management
- Excellent communication and presentation skills
- Ability to work independently and as part of a team
- Demonstrated ability to meet deadlines and deliver high-quality work
What the Team is Saying

Sierra Space Compensation & Benefits Highlights
- Retirement Support—The 401(k) program is characterized as unusually strong with plan documents indicating a high employer match through 2024 and recent notes that it remains generous even if somewhat reduced. A multi‑year vesting schedule applies making tenure an important factor in realizing full value.
- Healthcare Strength—Medical dental and vision coverage are provided alongside HSA/FSA options life insurance disability coverage mental‑health support and an Employee Assistance Program. Together these elements form a comprehensive core health package.
- Leave & Time Off Breadth—Information points to roughly three weeks of PTO and about eleven paid holidays with some references to PTO accrual and carryover. Parental leave is also referenced adding breadth to the time‑off portfolio.
Sierra Space Insights
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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