[Hiring] GNC Engineer @ALTEN Technology USA

Role Description

ALTEN is seeking a motivated Guidance, Navigation, and Control (GNC) Engineer to support the development, analysis, and verification of satellite GNC systems. This role contributes to the spacecraft development lifecycle—from requirements refinement through integration and testing—while working closely with senior engineers and cross-functional teams. The ideal candidate brings strong analytical capability, initiative, and a desire to grow technical depth within space systems engineering.

Position Responsibilities

• Contribute to the development of satellite GNC systems throughout the full lifecycle, from requirements definition through operations.
• Design and implement GNC designs for new spacecraft to accommodate various mission payloads.
• Analyze, design, and/or develop GNC systems, including:
  • Sensors and actuators
  • Algorithms and flight software
  • GNC electronics
• Support the development of subsystem level requirements and requirement flow-down.
• Ensure maximum reuse of existing heritage products and identify modification needs as necessary.
• Drive multiple design activities, potentially leading to spacecraft, payload, satellite bus, and/or launch integration activities.
• Participate in cross-functional planning, coordination, and task execution involving engineering and integration activities.

Simulation Development Responsibilities

• Develop high-fidelity simulation architectures for spacecraft GNC performance analysis, algorithm validation, and mission-level trade studies.
• Build, maintain, and update simulation models reflecting spacecraft design adjustments and mission requirements.
• Integrate sensors, actuators, GNC algorithms, and flight software components into end-to-end simulation frameworks.
• Support the definition and maturation of a spacecraft customization process by developing simulation tools.
• Conduct Monte-Carlo analyses, linear covariance assessments, and closed-loop performance evaluations.
• Automate simulation workflows to improve design iteration speed and assessment of design-for-cost considerations.
• Collaborate with cross-functional teams to ensure simulation products accurately represent spacecraft architecture.
• Document simulation artifacts, assumptions, and model validation results for design reviews and certification activities.

Additional Responsibilities

• Contribute to GNC engineering activities for developing and updating spacecraft product lines.
• Assist in evaluating opportunities for cost savings and design reuse across programs.
• Support troubleshooting, anomaly resolution, and ongoing improvements within active projects.

Qualifications

• Bachelor's degree in STEM (Science, Technical, Engineering, Math) or related scientific areas.
• Preferred: Master's in STEM (Science, Technical, Engineering, Math) or related scientific areas.

Requirements

• A minimum of 3 years of experience with a Bachelor's degree, or 1 year with a Master's degree.
• Experience with Matlab/Simulink; familiarity with STK.
• Ability to model, simulate, and analyze spacecraft dynamics, sensors, actuators, or control algorithms.
• Exposure to software development practices, verification, or validation activities.
• Experience with at least one programming or scripting language (e.g., C/C++, Python, TCL).
• Strong analytical skills and willingness to collaborate in a team environment.
• Periodic travel (less than 20%) to customer’s facilities or partner companies.
• Occasional international travel to collaborate with European counterparts.
• US Citizenship is required.
• Ability to obtain and maintain a Government security clearance.
• Active DoD security clearance at Secret or above highly desirable.

Benefits

• Salary Range: $90K-$125K, dependent on various factors including location and qualifications.