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Posted May 4, 2026

Mechanical Engineer

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SIE is a fast-growing, technology-driven defense systems engineering firm delivering hardware, software, and service solutions that improve defense system affordability and mission readiness. We are an energetic, collaborative team that prioritizes innovation, disciplined engineering, and mission impact. 


The Mechanical Engineer will support the design, development, integration, and testing of mechanical subsystems across a range of defense applications. Working under the guidance of the Lead Mechanical Engineer, this role is hands-on and execution-focused, contributing to the development of hardware solutions spanning structural, thermal, and manufacturing domains. 


This individual will collaborate with cross-functional teams including electrical, software, and systems engineering, while supporting both internal development efforts and customer-driven programs. The role is ideal for an engineer looking to grow technical depth while gaining exposure to full lifecycle product development in a fast-paced environment. 


Duties & Responsibilities 

 
Required Qualifications 




Clearance Requirements 

Some positions will require access to U.S. National Security information.  Positions that require this access will be required to receive and maintain a U.S. government personnel security clearance (PCL).  In order to qualify for this position, the candidate must be a US Citizen and either currently possess this National Security eligibility or be able to complete the investigation application process with a favorable determination and maintain that eligibility throughout their employment. To learn more about the security clearance process please access this link 

EEOC & Know Your Rights 

Accelint companies are Equal Opportunity Employers. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, age, disability, status as a protected veteran or any other status protected by applicable federal, state, and local law. We ensure that all employment decisions, including hiring, promotion, compensation, and other terms and conditions of employment, are based on merit, qualifications, and business needs. For more information about your rights, please review the "Know Your Rights" poster from the Equal Employment Opportunity Commission (EEOC). Know your Rights: English Spanish 

Pay Scales & Benefits 

The listed pay scale reflects the broad, minimum to maximum, pay scale for this position for the location for which it has been posted and is not a guarantee of compensation or salary. Other compensation considerations may include, but are not limited to, job responsibilities, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, or other applicable factors. 

Benefits include… 

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