Senior Mechanical Design Engineer – Aerospace/Defense (Onsite)

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

Job summary

ALTEN Technology USA seeks a Senior Design Engineer to lead mechanical systems design from concept to production readiness in onsite Mukilteo, WA. The role focuses on aerospace/defense hardware with cross-functional collaboration.

Ideal candidates hold a BS in Mechanical or Aerospace engineering, 6+ years in high-precision design, and strong skills in SolidWorks, GD&T, and CAD/CAE tools, plus BOMs and detailed drawings.

Qualifications

• Bachelor's degree in Mechanical Engineering, Aerospace Engineering, or related technical discipline.
• 6+ years of experience designing aerospace, defense, or other highly engineered products and systems.
• Demonstrated success developing hardware that has progressed through testing, qualification, and implementation.
• Strong mechanical design background with expertise in engineering drawing standards and design best practices.
• Proficiency with SolidWorks and Geometric Dimensioning & Tolerancing (GD&T).
• Experience utilizing CAD and CAE tools to support product development and engineering analyses.
• Strong understanding of mechanics, material behavior, stress analysis, and engineering fundamentals.
• Ability to interpret technical drawings, specifications, requirements, and engineering documentation.
• Experience creating and managing bills of materials, detailed drawings, and product definition packages.
• Working knowledge of military, aerospace, or commercial engineering specifications and standards.

Responsibilities

• Leading the design and development of mechanical systems, structural hardware, and mechanisms from early concept through production readiness.
• Creating innovative engineering solutions that meet customer requirements, performance objectives, and environmental constraints.
• Performing engineering calculations, trade studies, tolerance analyses, and evaluations to support design decisions.
• Supporting multiple development programs simultaneously while maintaining quality, schedule, and technical objectives.
• Reviewing and validating engineering analyses, calculations, and design outputs to ensure technical accuracy and compliance.
• Generating complete design packages including bills of materials, assembly drawings, and release documentation.
• Collaborating with manufacturing, quality, systems, and test engineering teams to transition designs into production and qualification.
• Providing technical support for prototype builds, hardware integration activities, development testing, and qualification efforts.
• Serving as a technical mentor to junior engineers and contributing to the growth of engineering best practices.
• Applying sound engineering judgment to solve complex technical challenges in high-performance aerospace and defense applications.

Skills

Aerospace experience

SolidWorks

GD&T

Engineering drawings

Mechanical design

Education

Bachelors in Mechanical or Aerospace

Tools

CAD/CAE tools

Job description

ALTEN Technology USA seeks a Senior Design Engineer to lead mechanical systems design from concept to production readiness in onsite Mukilteo, WA. The role focuses on aerospace/defense hardware with cross-functional collaboration.

Ideal candidates hold a BS in Mechanical or Aerospace engineering, 6+ years in high-precision design, and strong skills in SolidWorks, GD&T, and CAD/CAE tools, plus BOMs and detailed drawings.