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Firefly Aerospace

Mechanical Engineer IV – Spacecraft Mechanisms

Firefly Aerospace

Mechanical Engineer IV developing spacecraft mechanisms at Firefly Aerospace. Involves design, testing and compliance with aerospace standards.

Posted 4/13/2026full-timeCedar Park • Texas • 🇺🇸 United StatesSeniorLeadWebsite

About the role

Key responsibilities & impact
  • Participate in entire hardware lifecycle for a variety of moving mechanical assemblies and structures
  • Develop and scrub requirements
  • Support configuration development and trade studies
  • Conceptual design/analysis
  • Perform first-order strength and sizing calculations for your responsible mechanisms
  • Generate CAD, manufacturing drawings, specifications, and other documentation
  • Production Implementation
  • Hardware development and qualification test definition
  • Demonstrate compliance with NASA, Space Force, or other relevant launch jurisdiction standards
  • Collaborate with team to develop and improve processes related to above responsibilities

Requirements

What you’ll need
  • B.S. degree in aerospace or mechanical
  • 8+ years' demonstrated professional experience in aerospace or related mechanical engineering field
  • Strong design and integration skills using 3-D CAD software (Siemens NX preferable)
  • Ability to effectively work in a multi-discipline team and provide technical guidance and insight
  • Experience with industry FEA/FEM tools like Nastran, ANSYS, FEMAP, etc.
  • Experience designing and analyzing composite and metallic structures
  • Good understanding of first principles from a variety of engineering disciplines (mechanical, structural dynamics, materials, fluids/thermodynamics, electrical)
  • Drive for independent learning
  • M.S. degree in aerospace or mechanical engineering and/or 10+ years of relevant experience is desired
  • Working knowledge of composite manufacturing methods, material selection, and testing is desired
  • Experience developing physical tests to validate analysis and evaluate assumptions is desired
  • Familiarity with aerospace standard structural analysis methods (Bruhn, Niu, Roark, Shigleys, etc) is desired
  • Previous experience in launch vehicle or spacecraft mechanisms is desired
  • Working knowledge of at least one computer/scripting language at the professional or hobbyist level is desired

Benefits

Comp & perks
  • generous health, dental and vision plans with low plan deductibles
  • parental leave
  • educational reimbursement
  • short term disability
  • flexible PTO options

ATS Keywords

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Hard Skills & Tools
3-D CAD softwareSiemens NXFEA toolsFEM toolsNastranANSYSFEMAPfirst-order strength calculationsmechanical designcomposite and metallic structures
Soft Skills
design and integration skillstechnical guidancecollaborationindependent learningmulti-discipline teamwork
Certifications
B.S. degree in aerospace engineeringB.S. degree in mechanical engineeringM.S. degree in aerospace engineeringM.S. degree in mechanical engineering