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Mainstream Engineering
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Engineering Services
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Mainstream Engineering
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Engineering Services
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Hands-On Mechanical Engineer, R&D & Prototyping
APPLY
Mainstream Engineering
Florida, NY
L3 Junior
June 17th, 2026
Mechanical Engineers
Engineering Services
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Shipping Lead
APPLY
Mainstream Engineering
Florida, NY
L5 Senior
June 20th, 2026
Shipping, Receiving, and Inventory Clerks
Engineering Services
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Shipping Lead
APPLY
Mainstream Engineering
Rockledge, FL
L5 Senior
May 21st, 2026
Shipping, Receiving, and Inventory Clerks
Engineering Services
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Embedded Software Engineer
APPLY
Mainstream Engineering
Rockledge, FL
L6 Lead
July 11th, 2026
Software Developers
Engineering Services
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Senior Electrical Engineer
NEXT STEPS
Mainstream Engineering
Rockledge, FL
L5 Senior
April 12th, 2026
Electrical Engineers
All Other Miscellaneous Electrical Equipment and Component Manufacturing
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Test Engineer
NEXT STEPS
Mainstream Engineering
Rockledge, FL
L5 Senior
April 12th, 2026
Validation Engineers
Testing Laboratories and Services
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Senior Thermal Engineer
NEXT STEPS
Mainstream Engineering
Alexandria, VA
L5 Senior
May 17th, 2026
Mechanical Engineers
Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)
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Hands-On Mechanical Design Engineer (Prototype to Production)
APPLY
Mainstream Engineering
Tallahassee, FL
L3 Junior
June 23rd, 2026
Mechanical Engineers
All Other Industrial Machinery Manufacturing
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Mechanical Design Engineer
APPLY
Mainstream Engineering
Tallahassee, FL
L6 Lead
June 17th, 2026
Mechanical Engineers
All Other Industrial Machinery Manufacturing
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Mechanical Design Engineer
APPLY
Mainstream Engineering
Rockledge, FL
L5 Senior
April 12th, 2026
Mechanical Engineers
All Other Industrial Machinery Manufacturing
Show all >
Senior Thermal Engineer
APPLY
Mainstream Engineering
Tallahassee, FL
L5 Senior
June 17th, 2026
Mechanical Engineers
Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)
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Mechanical Design Engineer
APPLY
Mainstream Engineering
Florida, NY
L5 Senior
June 17th, 2026
Mechanical Engineers
All Other Industrial Machinery Manufacturing
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Electrical Test Systems Engineer: Hardware & Automation
APPLY
Mainstream Engineering
Florida, NY
L5 Senior
June 17th, 2026
Electrical Engineers
Relay and Industrial Control Manufacturing
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Senior Thermal Engineer
APPLY
Mainstream Engineering
Rockledge, FL
L5 Senior
April 12th, 2026
Mechanical Engineers
Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)
Show all >
Senior Embedded Software Engineer
APPLY
Mainstream Engineering
Rockledge, FL
L6 Lead
July 11th, 2026
Software Developers
Software Publishers
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Mechanical Design Engineer: Inventor CAD, GD&T, ECOs
APPLY
Mainstream Engineering
Florida, NY
L5 Senior
June 20th, 2026
Mechanical Engineers
All Other Industrial Machinery Manufacturing
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Chemical R&D Engineer
NEXT STEPS
Mainstream Engineering
Rockledge, FL
L6 Lead
April 12th, 2026
Chemical Engineers
Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)
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Shipping Lead: Timely Freight & Data-Driven Logistics
APPLY
Mainstream Engineering
Florida, NY
L5 Senior
June 20th, 2026
First-Line Supervisors of Material-Moving Machine and Vehicle Operators
Freight Transportation Arrangement
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HR Coordinator
APPLY
Mainstream Engineering
Rockledge, FL
L3 Junior
May 6th, 2026
Secretaries and Administrative Assistants, Except Legal, Medical, and Executive
Corporate, Subsidiary, and Regional Managing Offices
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Mechanical Engineer - Mechanics R&D
NEXT STEPS
Mainstream Engineering
Tallahassee, FL
L6 Lead
June 17th, 2026
Mechanical Engineers
Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)
Show all >
Senior Thermal Engineer
APPLY
Mainstream Engineering
Florida, NY
L5 Senior
July 16th, 2026
Mechanical Engineers
Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)
Show all >
Mechanical Engineer - Mechanics R&D
APPLY
Mainstream Engineering
Rockledge, FL
L6 Lead
April 12th, 2026
Mechanical Engineers
Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)
Show all >
Mechanical Engineer - Thermal R&D
APPLY
Mainstream Engineering
Tallahassee, FL
L5 Senior
June 22nd, 2026
Mechanical Engineers
Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)
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Electrical Test & Automation Engineer (PCB & Fixtures)
APPLY
Mainstream Engineering
Tallahassee, FL
L5 Senior
June 17th, 2026
Electrical Engineers
Printed Circuit Assembly (Electronic Assembly) Manufacturing
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Hands-On Mechanical Engineer, R&D & Prototyping
NEXT STEPS
Mainstream Engineering
Tallahassee, FL
L3 Junior
June 17th, 2026
Mechanical Engineers
All Other Industrial Machinery Manufacturing
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Mechanical Engineer - Thermal R&D
APPLY
Mainstream Engineering
Rockledge, FL
L5 Senior
April 12th, 2026
Mechanical Engineers
Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)
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Quality Inspector
NEXT STEPS
Mainstream Engineering
Rockledge, FL
L5 Senior
April 12th, 2026
Inspectors, Testers, Sorters, Samplers, and Weighers
Machine Shops
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Mechanical Engineer - Mechanics R&D
APPLY
Mainstream Engineering
Florida, NY
L6 Lead
June 17th, 2026
Mechanical Engineers
Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)
Show all >
Senior Thermal Engineer - Hypersonic & Thermal Systems Lead
NEXT STEPS
Mainstream Engineering
Tallahassee, FL
L5 Senior
June 20th, 2026
Mechanical Engineers
Heating Equipment (except Warm Air Furnaces) Manufacturing
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Mechanical Engineer - Thermal R&D
APPLY
Mainstream Engineering
Florida, NY
L5 Senior
June 20th, 2026
Mechanical Engineers
Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)
Show all >
Quality Engineer
APPLY
Mainstream Engineering
Rockledge, FL
L6 Lead
April 12th, 2026
Quality Control Systems Managers
Aircraft Manufacturing
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