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35 co op engineer jobs at 9 companies in Longmont, CO

5d
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Mechanical Engineer Intern/Co-op Summer 2027 - Energy Solutions
Media or Golden or Nashville or Fairfax or Baltimore or Prospect
OnsiteInternship, Temporary
CMTA
CMTA: CMTA is a private U.S. MEP engineering firm providing sustainable building design, performance contracting, and zero-energy solutions.
0+ YOEUndergraduate engineering degree from an ABET-accredited university, minimum 3.39 GPA, Microsoft Word and Excel proficiency, communication skills, and ability to work independently, collaboratively, and locally in the field.
Microsoft Word, Microsoft Excel, CAD, photovoltaic systems, LED lighting, HVAC, geothermal, building automation systems
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6d
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System Engineering Co-op (Remote)
Aurora, Colorado, United States
$37k-$82k/yr RemotePart Time, Internship
RTX
RTXNYSE: RTX: Aerospace and defense providing advanced technology solutions.
Enrolled in electrical engineering bachelor's or master's program, graduating May or August 2027. Requires electronics testing exposure, troubleshooting, data analysis, and experience with MATLAB, Microsoft Office, Ansys HFSS, or Python.
MATLAB, Microsoft Office, Ansys HFSS, Python, Windows, UNIX, Perl, VBA
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1w
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2027 Undergrad Software Engineer Intern/Co-op
Austin or Boxborough or Fort Collins or Longmont or Fishkill or Rochester
$59k-$89k/yr HybridInternship, Temporary
AMD
AMDNASDAQ: AMD: Leader in high-performance computing, graphics, and visualization technologies.
Current US undergraduate student in Computer Engineering, Electrical Engineering, Computer Science, or a related field; knowledge of software engineering and programming is encouraged.
C, C++, Python, Microsoft PowerShell, Linux shell script, Perl, Java, JavaScript, UML, UNIX, Linux, MySQL, PostgreSQL, MongoDB, Azure, Django, Rails, Spring Boot, HTML, XML, XSL, Git, GitHub, Perforce, OAuth, SSL, TLS
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5d
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Construction Management Intern/Co-op Summer 2027 – Energy Solutions
Charles Town or Fairfax or Nashville or Prospect or Golden
FieldInternship
CMTA
CMTA: CMTA is a private U.S. MEP engineering firm providing sustainable building design, performance contracting, and zero-energy solutions.
Enrolled in a bachelor's program in construction management, mechanical engineering, or related field; knowledge of construction or HVAC systems preferred; strong organization, communication, teamwork, and willingness to travel required.
Microsoft Office, Microsoft Excel, Microsoft Word, Microsoft Outlook
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3mo
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RF Field Engineer - Aurora, CO
Aurora, Colorado, United States
$125k-$195k/yr OnsiteFull Time
ICR, Inc.
ICR, Inc.: Employee-owned U.S. defense contractor providing engineering, software, research, and operational solutions to intelligence and defense communities.
4+ YOE4-6 years RF field engineering experience; active Top Secret/SCI clearance; US citizenship; ability to deploy OCONUS; SATCOM ops/maintenance; basic Linux; strong communication.
SATCOM, Linux, Python, Java, C, PCAP data, OSI model, Network mapping, System engineering
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2w
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Mechanical Engineer (Early Career, Exceptional Talent)
Centennial, Colorado, United States
$87k-$117k/yr OnsiteFull Time
Boom Supersonic
Boom Supersonic: Private American aerospace manufacturer building supersonic airliners, engines, and gas turbines for airlines and AI data centers.
Mechanical or aerospace engineering degree or equivalent hands-on experience; internship or co-op; 3D CAD, structural and thermal FEA; mechanical engineering fundamentals and hands-on hardware experience.
NX, SolidWorks, CATIA, FEA
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2w
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Associate Engineer - 2027 Leadership Development Program
Avon Lake or Englewood or Birmingham
OnsiteFull Time
Avient
AvientNYSE: AVNT: Global innovator of specialized polymer materials and services.
1+ YOEBachelor’s degree in an engineering or materials science field; graduation by program start and within the prior year. One year of experience preferred, including co-op or internship experience. Willingness to relocate and travel required.
Lean Six Sigma
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2d
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Project Engineer - Entry Level Colorado Region 2026 - 2027
Brighton or Aurora or Boulder or Frisco or Colorado Springs
$75k-$85k/yr OnsiteFull Time
The Walsh Group
The Walsh Group: A fourth-generation, family-owned construction and engineering firm.
1+ YOERequires 1+ year of experience; bachelor's degree preferred. Internship, co-op, or employment experience is a plus, and relocation may be required for specific roles.
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6d
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Project Engineer Sr - E3
Littleton, Colorado, United States
$96k-$178k/yr OnsiteFull Time
Lockheed Martin
Lockheed MartinNYSE: LMT: Global security and aerospace driving innovative defense solutions.
1+ YOEAt least 1 year of related experience, including internships or co-ops; experience coordinating documentation and data; Microsoft Office Suite, Windows, and PDF editing proficiency; active Secret clearance, Top Secret eligibility, and US citizenship.
Windows, Microsoft Office Suite, PDF editing tools, Jira, CD-R, DVD-R, BD-R, Internal CD/DVD/BD drives, External Encrypted Hard Drives, Encrypted USB Flash Drives
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2mo
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Aerospace Systems Engineer I – Early Career (Top Secret or Secret Clearance Required)
Kent or Seattle or Denver or Reston or Cape Canaveral or Longmont or Brevard County
$81k-$114k/yr OnsiteFull Time
Blue Origin
Blue Origin: Developing reusable space vehicles and infrastructure.
0+ YOEActive Top Secret or Secret clearance required; B.S. in engineering or technical field (recent graduates), relevant internship/co-op or hands-on experience, systems engineering experience on complex systems, and strong communication and problem decomposition skills.
Jama, Rhapsody, Cameo, Model Based Systems Engineering, Defense Biometric Identification System (DBIDS)
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2w
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BD Engineering Development Program
Durham or Warwick or Covington or Louisville or Brea or Vernon Hills or San Diego or Tempe or Salt Lake City or Franklin Lakes or Irvine
OnsiteFull Time
BD
BDNYSE: BDX: Global medical technology advancing the world of health.
0+ YOENew engineering graduate with BS or MS in a relevant engineering discipline, strong academics, leadership, communication, and problem-solving skills; internship or co-op experience required.
CAD
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