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Mechanical Engineer III

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Onsite

Mechanical Engineer III

Sierra Nevada Corporation

Mechanical Engineer III

Skills

Workday

1 month ago

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Important information


Contract type:

Permanent

Salary:

$108,496 – $149,183 / year

Location:

Lone Tree, CO, USA

Work mode:

Onsite

Published on:

17 September 2026

What they need


Do you enjoy designing and developing innovative solutions to solve tough problems? Join our team to deliver technological solutions in a rapid and agile production environment. As a Mechanical Engineer III, you will lead the design, development, testing, and deployment of advanced mechanical systems for aerospace and defense applications. This role requires in-depth expertise in mechanical engineering and the ability to manage multiple projects simultaneously.The ISR (Intelligence, Surveillance & Reconnaissance), Aviation, and Security (IAS) business area is a leader in ISR and aviation, it is a leading prime manned and unmanned aircraft systems integrator for innovative, high-performance ISR and aviation systems. Its end-to-end Command, Control, Computers, Communications and Intelligence, Surveillance & Reconnaissance (C4ISR) capabilities encompass design, integration, test, certification, ground/flight training and complete logistics support. IAS tailors solutions to customer cost, performance, and schedule requirements and designs to consistently exceed expectations – with an unrivaled record of on time and on (or under) budget deliveries.

Responsibilities:

  • Lead the design and development of advanced mechanical systems and components.
  • Perform complex analyses and simulations to validate and optimize designs.
  • Develop and oversee the execution of detailed test plans and procedures.
  • Review and approve technical documentation and reports.
  • Collaborate with cross-functional teams to ensure successful integration of mechanical systems.
  • Mentor junior engineers and provide technical guidance.

Qualifications You Must Have:

  • Bachelor’s degree in Mechanical Engineering, Aerospace Engineering, or a related field.
  • 6+ years of experience in mechanical engineering or a related role.
  • Higher level relevant degree may substitute for experience.
  • Advanced understanding of mechanical design principles and computer-aided design (CAD) software.
  • Practical knowledge of engineering principles and practices
  • Experience with Computer Aided Engineering tools
  • Experience working in multi-disciplinary design and development teams
  • Ability to obtain and maintain United States Secret Security Clearance.

Qualifications We Prefer:

  • Master’s degree in a related field.
  • Understanding of applying and interpreting Geometric Dimensioning and Tolerancing (GD&T) per ASME Y14.5
  • Background in the Aerospace and Defense Industry
  • Knowledge of industry-standard mechanical design principles, to include, but not limited to parametric design, model-based definition, material hardware selection, manufacturing, and production processes
  • Knowledge of environmental requirements for components utilized in aircraft and space applications
  • Experience providing technical guidance to a diverse team of engineers on issues related to mechanical engineering
  • Experience with manufacturing, production, and product support to include disposition of engineering non-conformances
  • Familiarity with FAA , NASA, and/or DoD design and construction regulations
  • Previous experience with missile system development programs

Essential Functions:

  • Ability to work on a computer for extended periods.
  • Occasional travel may be required.
  • Ability to work in an office or hybrid environment.
  • Applying systematic and logical problem-solving techniques to develop mechanical designs
  • Clearly convey technical information, design specifications, and project updates to team members, stakeholders, and management
  • Ability to understand technical documents, designs and test reports.

This posting will be open for application for a minimum of 5 days and may be extended based on business needs.

Estimated Starting Salary Range: $108,496.89 - $149,183.22. Compensation varies depending on a wide array of factors, such as candidates' key skills, relevant work experience, and education/training/certifications. The disclosed range estimate may be adjusted for any applicable geographic differential associated with the location at which the position may be filled.

SNC offers a generous benefit package, including medical, dental, and vision plans, 401(k) with 150% match up to 6%, life insurance, 3 weeks paid time off, tuition reimbursement, and more.

IMPORTANT NOTICE:

This position requires the ability to obtain and maintain a Secret U.S. Security Clearance. U.S. Citizenship status is required as this position needs an active U.S. Security Clearance for employment. Non-U.S. citizens may not be eligible to obtain a security clearance. The Department of Defense Consolidated Adjudications Facility (DoD CAF), a federal government agency, handles the adjudicative aspects of the security clearance eligibility process for industry applicants. Adjudicative factors which affect the outcome of the eligibility determination include, but are not limited to, allegiance to the U.S., foreign influence, foreign preference, criminal conduct, security violations and illegal drug use.

Learn more about the background check process for Security Clearances.

SNC is a global leader in aerospace and national security committed to moving the American Dream forward. We’re known and respected for our mission and execution focus, agility, and disruptive and rapid innovation. We provide leading edge technologies and transformative solutions that support our nation’s most critical security needs. If you are mission-focused, thrive in collaborative environments, and want to make our country stronger with state-of-the-art technologies that safeguard freedom, join our team!

SNC is an Equal Opportunity Employer committed to an environment free of discrimination. Employment decisions are made based on merit without regard to race, color, age, religion, sex, national origin, disability, status as a protected veteran or other characteristics protected by law.

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