Demo

Mid-Level/Associate Mission Systems Engineer

Cimarron
Aurora, CO Full Time
POSTED ON 9/18/2026
AVAILABLE BEFORE 10/18/2026
Posting/External Job Title

Mid-Level/Associate Mission Systems Engineer

Location

Aurora, CO 80011 US
El Segundo, CA 90245 US
Seal Beach, CA 90740 US (Primary)

Remote/Onsite/Hybrid

100% Onsite

Job Type

Full-time

# of Hires Needed

1

Education

Bachelor's Degree

Travel

None

Security Clearance Required

TS/SCI

Pay Range (All offers will be based on experience)

$120,000.00-$200,000.00/yr

Position Introduction/Key Duties

Cimarron is seeking a Mid-Level/Associate Mission Systems Engineer to join an exciting program located in Seal Beach, CA; with options to work from Aurora, CO or El Segundo, CA; to support development of new first-of-kind space vehicles and missions.

Key Duties:
  • Support technology integration for and development of first-of-kind space vehicles and missions.
  • Develop and present review packages to internal and external senior leadership.
  • Work proactively and independently in a fast-paced, demanding atmosphere.
  • Develop physics-based mission simulations to inform system trade studies and verify system performance.
  • Apply astrodynamics and flight mechanics to mission design, novel orbit concepts, and trajectory optimization.
  • Independently identify inefficiencies, propose solutions, and implement reusable tools and automations.

Required/Desired Skills, Experience, and Education

Required Skills, Experience, and Education:
  • Ability to complete a pre-employment background check and drug screening, which will include, but is not limited to, testing for marijuana use.
  • This position requires access to federal facilities. Candidates must possess a valid, unexpired Real ID-compliant driver's license or state-issued identification card at the time of hire. If you are unsure whether your ID is Real ID-compliant, please check for the star symbol in the upper portion of your driver's license or state ID.
  • Must have an active TS/SCI security clearance.
  • 2 or more years of related work experience or an equivalent combination of education and experience.
  • Bachelor of Science degree in Engineering, Engineering Technology (including Manufacturing Technology), Computer Science, Data Science, Mathematics, Physics, Chemistry or non-US equivalent qualifications directly related to the work statement.

Desired Skills, Experience, and Education:
  • 5 or more years of related work experience or an equivalent combination of education and experience.
  • 5 or more years of related work experience OR an equivalent combination of education and experience (Ex. PhD, Master's 3 or more years' related work experience).
  • Experience with Model Based Systems Engineering (MBSE).
  • Proficiency with MATLAB, Python, or comparable software languages.
  • Proficiency developing control algorithms, models, and simulations.
  • Familiarity with space environments, mission design, and astrodynamics.
  • Experience working with cross-functional teams and external customers.
  • Experience in spacecraft, launch vehicles, or highly autonomous unmanned systems.

Business Profile:

Cimarron is a global solutions company with a strategic partnering approach to satisfying customer-driven requirements. We ensure customer success with a modern approach and experienced leadership. Driven by an entrepreneurial spirit, Cimarron is fueled by highly skilled employees, developing new innovative technologies, and delivering superior products and services. We believe in recognizing employees' worth by offering competitive salaries and benefits, including health, dental, and vision insurance, 401(k) contributions, educational reimbursement, and much more. From company communication through Company-wide information meetings led by our President and CEO, to an Awards program designed to recognize our amazing employees and their accomplishments, you will not only feel like you are a part of a team, you will be a valued member of the Cimarron family. Cimarron is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, age, sex, sexual orientation, gender identity, religion, national origin, disability, veteran status, or any other characteristic protected by federal, state, or local law.

Resumes should list employment dates in month/year format (e.g., January 2020 - March 2024) for each position to meet customer and contract documentation requirements.

Salary : $120,000 - $200,000

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