Great Hill Solutions, LLC is part of the Seneca Nation Group (SNG) portfolio of companies. SNG is Seneca Holdings' federal government contracting business that meets mission-critical needs of federal civilian, defense, and intelligence community customers. Our portfolio comprises multiple subsidiaries that participate in the Small Business Administration 8(a) program. To learn more about SNG, visit the website and follow us on LinkedIn.

Our team of talented individuals is what makes us successful. To support our team, we provide a balanced mix of benefits and programs. Your total rewards package includes competitive pay, benefits, and perks, flexible work-life balance, professional development opportunities, and performance and recognition programs. We offer a comprehensive benefits package that includes medical, dental, vision, life, and disability, voluntary benefit programs (critical illness, hospital, and accident), health savings and flexible spending accounts, and retirement 401K plan. One of our fundamental principles is to offer competitive health and welfare benefits to our team members, providing coverage and care for you and your family. Full-time employees working at least 30 hours a week on a regular basis are eligible to participate in our benefits and paid leave programs. We pride ourselves on our collaborative work environment and culture, which embraces our mission of providing financial and non-financial benefits back to the members of the Seneca Nation.

Location: Los Angeles, CA (vicinity of Los Angeles Space Force Base)
Travel: Occasional CONUS travel required
Clearance: Active Top Secret clearance with SCI eligibility required
Citizenship: U.S. Citizenship required

Position Overview:
Great Hill Solutions is seeking an experienced Space Systems Engineer to support advanced test and evaluation initiatives for national security space missions. This position will focus on orbital mechanics, spacecraft operations, and system integration to inform strategic defense capabilities.

Required Qualifications:

• Minimum of 10 years of experience in spacecraft systems engineering
• Deep understanding of on-orbit spacecraft operations and orbital mechanics
• Proficient in orbital modeling and simulation analysis
• Experience with launch vehicle integration and coordination across multi-disciplinary teams
• Skilled in developing TTPs, CONOPs, or CONEMPs through technical analysis and validation events
• Proficiency in Microsoft Word, Excel, and PowerPoint

Desired Qualifications:

• Previous experience with joint or operational testing, or work on Department of Defense test ranges
• Knowledge of national security space systems and operational planning