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Sr GNC Engineer (space/defense)

ALTEN Technology USA is an engineering services company supporting aerospace and defense programs, partnering with leading firms to develop satellite platforms and related systems. We are seeking an experienced Guidance, Navigation, and Control (GNC) engineer to design, simulate, and verify satellite GNC solutions across the full development lifecycle, contribute to product roadmaps, and support spacecraft customization and reuse strategies.

Skills

  • Proficiency with Matlab/Simulink and STK
  • Experience modeling and simulating spacecraft sensors, actuators, dynamics, and GNC algorithms
  • Familiarity with Model-Based Systems Engineering (SysML/UML) and requirements/architecture processes
  • Experience with software development, verification, and validation practices
  • Proficiency in object-oriented programming (C, C++) and scripting (Python, TCL)
  • Ability to perform requirement flow-down and design for manufacturability/test/cost
  • Strong systems-thinking and cross-disciplinary coordination skills
  • US Citizenship (required) and ability to obtain government security clearance

Responsibilities

  • Design and implement GNC architectures for new spacecraft and payload integrations
  • Model, simulate, and analyze GNC sensors, actuators, dynamics, algorithms, and flight software
  • Develop and document subsystem-level requirements and perform requirement flow-down
  • Support GNC electronics and algorithm development and verification activities
  • Promote reuse of heritage products and identify needed modifications for new missions
  • Drive multiple design activities across programs (spacecraft, payload, bus, launch integration)
  • Participate in cross-functional planning, integration, and trade studies
  • Support simulation development and spacecraft product roadmap activities
  • Define spacecraft customization processes to meet customer mission needs
  • Perform ongoing system engineering to build, maintain, and evolve spacecraft products

Education

  • Bachelor's degree in STEM (required)
  • Master's degree in STEM (preferred)

Benefits

  • Comprehensive benefits package (medical, dental, vision) and retirement savings
  • Mentorship and career growth opportunities within a large engineering organization
  • Work flexibility with remote location and periodic travel (under 20%)
  • Supportive, inclusive culture and equal opportunity employer
  • Pre-employment drug screening as a federal contractor
To read the complete job description, please click on the ‘Apply’ button

Average salary estimate

$147500 / YEARLY (est.)
min
max
$120000K
$175000K

If an employer mentions a salary or salary range on their job, we display it as an "Employer Estimate". If a job has no salary data, Rise displays an estimate if available.

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MATCH
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FUNDING
DEPARTMENTS
SENIORITY LEVEL REQUIREMENT
TEAM SIZE
SALARY RANGE
$120,000/yr - $175,000/yr
EMPLOYMENT TYPE
Full-time, remote
DATE POSTED
March 28, 2026
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