Senior Systems Engineer
Location: Long Beach, California, USA
Salary: $110,000 - $175,000 per annum + benefits
Sector: Space Systems / Aerospace Engineering
Security Requirement: U.S. Citizenship Required
Alexander Associates are partnering with an innovative space technology organisation seeking a Senior Systems Engineer to join their growing Space Systems team in Long Beach, California.
This is an exciting opportunity to work on cutting-edge spacecraft and satellite programmes supporting civil, commercial, and defence customers. The successful candidate will play a key role in the development and execution of complex space missions, leading systems engineering activities from concept through testing and delivery.
Key Responsibilities
Develop and maintain technical performance budgets for spacecraft and vehicle systems
Define, manage, and verify system requirements throughout the programme lifecycle
Conduct simulations, modelling, and analysis across spacecraft functions
Develop test methodologies and analyse system performance data
Lead the technical development of spacecraft missions and system architectures
Support programme management and product development activities
Produce interface specifications, CONOPS documentation, and technical design documentation
Collaborate closely with multidisciplinary engineering teams to deliver mission objectives
Support systems integration, validation, and verification activities
Essential Requirements
Bachelor's degree in Aerospace Engineering, Mechanical Engineering, Electrical Engineering, Software Engineering, Computer Engineering, or a related discipline
Minimum 8 years of aerospace engineering experience
Experience supporting satellite or spacecraft development programmes
U.S. Citizenship due to programme requirements
Desirable Experience
Master's degree or PhD in a relevant engineering discipline
Active TS/SCI Security Clearance
Knowledge of spacecraft subsystems including:
Attitude Determination and Control Systems (ADCS)
Electrical Power Systems (EPS)
Command & Data Handling (C&DH)
Space-to-ground communications
Thermal control systems
Understanding of orbital mechanics, rigid body dynamics, and the space environment
Experience using MATLAB, Python, and STK
Familiarity with requirements management tools such as DOORS or JAMA
Satellite operations experience
Experience with environmental and qualification testing, including:
Thermal vacuum testing
Random vibration testing
Hardware-in-the-loop (HITL) testing
Strong problem-solving and stakeholder management skills
Ability to thrive in a fast-paced engineering environment with competing priorities
What's on Offer
Competitive salary of $110,000 - $175,000
Comprehensive healthcare, dental, and vision coverage
Retirement savings plan with company contribution
Generous holiday allowance and paid leave
Parental leave and life insurance benefits
Employee stock purchase opportunities
On-site facilities and additional employee perks
Opportunity to contribute to industry-leading spacecraft and satellite programmes
If you are passionate about space systems engineering and want to work on mission-critical aerospace projects, we would love to hear from you