Mechanical Engineer III

mercurysystemscareers; Chantilly (VA); On-site; USD 85,000 - 120,000; Full time

Job summary

Mercury Systems Chantilly, VA is seeking a mechanical engineer with 4+ years of experience to join a collaborative engineering team focused on electronics production. You will design, analyze, and test rugged subsystems and servers, emphasizing cooling and thermal management, with hands-on involvement across packaging, layout, and assembly.

The role requires a Bachelor’s degree in mechanical/aerospace engineering, SolidWorks proficiency, and experience with manufacturing processes.

Qualifications

• Bachelor's degree or equivalent in mechanical or aerospace engineering or related technical field.
• Typically requires a minimum of 4 years of relevant experience.
• Strong understanding of heat transfer and thermal management.
• General knowledge of conventional and advanced manufacturing, including additive manufacturing.
• Experience with 3D CAD software such as SolidWorks.
• Familiarity with material control processes and related tools (Agile, Oracle, EPDM).
• Excellent organizational and verbal/written communication skills.
• Ability to work in a fast-paced, multi-disciplinary environment.
• Position may require government security clearance in the future; U.S. citizens only.

Responsibilities

• Mechanical packaging design for electronic subsystems and servers, including ECAD support and BOM management.
• Collaborate with Hardware, Manufacturing, Quality, and Procurement teams daily.
• Lead products from concept through integration, test, and production release.
• Design mechanical hardware for rugged military applications.
• Create complex models and drawings using SolidWorks.
• Support verification testing (thermal, airflow, vibration, environmental tests).
• Drive procurement of prototype materials to verify form, fit, and function.
• Draft test plans, inspection reports, and change requests (ECRs/ECOs).

Skills

Heat transfer

Thermal management

3D CAD

SolidWorks

Agile

Documentation

Communication

Organization

Security clearance (future)

Education

Bachelor's degree in mechanical or aerospace engineering

Tools

SolidWorks

PDM/EPDM

Oracle

Agile

Job description

Job Summary:

Mercury Systems Chantilly, VA location offers a great opportunity for a mechanical engineer with at least 4 years' experience to join a small, collaborative engineering team in an electronics production focused environment. If you thrive on continuous learning and are looking for the opportunity to make an impact by bringing a fresh perspective to complex design challenges, then consider applying for this role. You will have a hands‑on opportunity to design, analyze, and test complex subsystem and rugged server designs, including multiple methods of cooling utilizing the latest technologies.

Job Responsibilities:

• Mechanical engineering tasks related to electronic subsystem and server design with components based on open standards. Assignments include:
  • mechanical packaging design, printed wiring board layout and ECAD support, connector selection, label & cable design, test equipment, prototype inspection & assembly, environmental testing, and the documentation required to procure and assemble hardware
• Collaborating with other disciplines including Hardware/Electrical Engineering, Manufacturing, Quality Engineering, and Procurement as part of your daily activities
• Taking products from concept design all the way through integration, test, and production release
• Conceptualization, design, development, analysis and documentation of mechanical hardware and/or systems for use in rugged military applications
• Design of complex fixturing to support testing and advanced manufacturing techniques
• Creation of complex models and detailed drawings using SolidWorks
• Communication of design concepts and document product to diverse audiences internal and external to Mercury
• Supporting product verification testing such as thermal, airflow, vibration, mechanical shock, humidity, and environmental stress screening
• Driving procurement of prototype material to verify form, fit, and function
• Failure analysis of discrepant material in coordination with manufacturing and application engineering
• Drafting Test plans and Inspection reports as part of verification and validation
• Structuring Bills of Material (BOMs/PLs)
• Drafting and managing Engineering Change Requests (ECRs/ECOs)

Required Qualifications:

• Bachelor's degree or equivalent experience in mechanical or aerospace engineering or another related technical field
• Typically requires a minimum of 4 years of relevant experience
• An understanding of heat transfer and thermal management
• General knowledge of both conventional manufacturing techniques and advanced manufacturing, such as additive manufacturing
• Experience with 3D CAD software, such as SolidWorks
• Familiarity with material control processes and documentation such as routers, work instructions, etc. and tools related to those functions (Agile, Oracle, EPDM, etc.)
• Excellent organizational and verbal/written communication skills
• Proficiency with standard documentation and presentation tools
• Ability to work in a fast-paced and dynamic multi-disciplinary environment
• This position requires you to have or obtain a government security clearance in the future. Security clearances may only be granted to U.S. citizens.

Preferred Qualifications:

• Master's degree in mechanical or aerospace engineering or another related technical field
• Experience and understanding of Printed Wiring Board Assemblies design and processes
• Experience and understanding of chassis and digital/fiber optic cable design
• Experience presenting design and analysis at Prime subcontractor and Government milestone events (PDR/CDR/TRR)
• Familiarity with ANSI/VITA Standards (46.0, 48.x, 66.x, 67.x)
• Familiarity with GD&T
• Proficient in SolidWorks and PDM tools
• Experience with Test Execution and Documentation (Plans, Procedures, Reports)

Why should you join Mercury Systems?

Mercury Systems is a technology company that makes the world a safer, more secure place. We push processing power to the tactical edge, making the latest commercial technologies profoundly more accessible for today's most challenging aerospace and defense missions. From silicon to system scale, Mercury enables customers to accelerate innovation and turn data into decision superiority. Headquartered in Andover, Massachusetts, Mercury employs more than 2,300 people in 24 locations worldwide. To learn more, visit mrcy.com

Our Culture

We are committed to making Mercury a great place to work, no matter where our employees are located. We offer a casual and enjoyable atmosphere that allows employees to learn and grow. We help and care for one another and work as one to achieve results for us and for our customers. We value communication and transparency, and strive to foster two‑way dialogue at all levels of the organization. We are committed to lifelong learning, offering comprehensive skills training and tuition reimbursement. Whether you're just starting out on your career journey or you are an experienced professional, it's important to us that you feel recognized and rewarded for your contributions.

To find out more about Why Mercury?, or visit the Mercury Community or find answers to general questions at Mercury FAQs

Mercury Systems is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, age, sex (including pregnancy), sexual orientation, gender identity, national origin, genetic information, creed, citizenship, disability, protected veteran or marital status.

As an equal opportunity employer, Mercury Systems is committed to a diverse workforce. In order to ensure reasonable accommodation for individuals protected by Section 503 of the Rehabilitation Act of 1973, the Vietnam Veterans' Readjustment Act of 1974, and Title I of the Americans with Disabilities Act of 1990, applicants that require accommodation in the job application process may contact the number below for assistance.