Senior Mechanical Design Engineer – Aerospace & Defense

ALTEN Technology USA; Seattle (WA); On-site; USD 135,000 - 165,000; Full time

Job summary

ALTEN Technology USA is seeking a Senior Design Engineer to lead the design and development of mechanical systems for aerospace/defense applications. You will drive from concept through production readiness, applying strong mechanical design skills and GD&T standards.

You will collaborate with cross‑functional teams across engineering disciplines, provide technical leadership, and support prototype builds, testing, and qualification. The role emphasizes mentorship and rigorous design practices.

Qualifications

• Bachelor’s degree in Mechanical or Aerospace Engineering.
• 6+ years designing aerospace/defense products and systems.
• Experience from testing through qualification to implementation.
• Strong mechanical design with drawing standards and best practices.
• Proficiency in SolidWorks and GD&T.
• Experience using CAD/CAE tools for analyses.
• Understanding of mechanics, materials, stress, and fundamentals.

Responsibilities

• Lead design and development of mechanical systems from concept to production readiness.
• Create innovative solutions meeting customer requirements and constraints.
• Perform calculations, trade studies, and tolerance analyses to support decisions.
• Support multiple programs, maintaining quality, schedule, and objectives.
• Review and validate analyses and design outputs for accuracy and compliance.
• Generate complete design packages including BOMs and drawings.
• Collaborate with manufacturing, quality, systems, and test teams to transition designs to production.
• Provide technical support for prototypes, hardware integration, testing, and qualification.
• Mentor junior engineers and promote engineering best practices.
• Apply engineering judgment to solve high‑level aerospace/defense challenges.

Skills

SolidWorks

GD&T

CAD/CAE

Mechanical design

Technical drawings

Education

Bachelor’s degree in Mechanical or Aerospace Engineering

Tools

SolidWorks

CAD/CAE tools

Job description

ALTEN Technology USA is seeking a Senior Design Engineer to lead the design and development of mechanical systems for aerospace/defense applications. You will drive from concept through production readiness, applying strong mechanical design skills and GD&T standards.

You will collaborate with cross‑functional teams across engineering disciplines, provide technical leadership, and support prototype builds, testing, and qualification. The role emphasizes mentorship and rigorous design practices.