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Mechanical Engineer III

Job in Plano, Cherokee County, Alabama, USA
Listing for: Sierra Nevada Corporation
Full Time position
Listed on 2026-07-07
Job specializations:
  • Engineering
    Mechanical Engineer, Aerospace / Aviation / Avionics, Engineering Design & Technologists, Systems Engineer
Salary/Wage Range or Industry Benchmark: 90000 - 115000 USD Yearly USD 90000.00 115000.00 YEAR
Job Description & How to Apply Below
Location: Plano

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 (C4

ISR) 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.
  • The ability to obtain and maintain a Secret U.S. Security Clearance is required.
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.
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.

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…

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