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120 developer intern jobs at 77 companies in Centennial, CO

2mo
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Manufacturing Engineer Intern
Louisville, Colorado, United States
$23-$37/hr OnsiteFull Time, Internship
H3X
H3X: Manufacturer of high power density electric motors for sustainable aviation.
0+ YOEPursuing a Mechanical Engineering degree; GPA 3.0+, hands-on assembly experience; SolidWorks; strong communication; detail-oriented; eager to learn.
SolidWorks
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2w
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Innovation Engineer Intern
Broomfield, Colorado, United States
$22-$25/hr OnsiteInternship, Full Time
Lignetics
Lignetics: Upcycles wood waste into sustainable consumer and heating products.
Pursuing or completed BA/BS in engineering, chemistry, materials or physical science; analytical, experimental and data-analysis skills; ability to develop test methods, prototype formulations, and support consumer research.
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3mo
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AI Engineering Intern
Boulder, Colorado, United States
$17-$25/hr OnsiteFull Time, Internship
TIFIN
TIFIN: AI platform for personalized wealth management and investment advice.
Pursuing or recently completed BS/MS in CS, engineering or related; strong Python; familiarity with machine learning/AI, APIs, and backend development via internships, coursework or research.
Python
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2mo
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Graduate (Year-Round) Intern – Socio-Economic Impacts
Boulder, Colorado, United States
$45k-$71k/yr HybridFull Time
National Laboratory of the Rockies
National Laboratory of the Rockies: Conducts applied research in energy systems and technology innovation.
0+ YOEGraduate intern focusing on socio-economic impacts; requires coursework in public policy, economics, or social science; strong communication and stakeholder engagement.
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1d
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IT Intern - Software Development & Automation Intern - In Office
Aurora, Colorado, United States
$20/hr OnsiteFull Time
Wagner Equipment Co.
Wagner Equipment Co.: Sells and rents Caterpillar heavy equipment and provides maintenance services.
Pursuing or recent degree in IT/CS or related, high school diploma/GED required, strong problem-solving, communication, Microsoft Office proficiency, ability to learn new technologies, detail-oriented.
Microsoft Power Platform, Microsoft SharePoint Online, Power BI, Microsoft 365, Azure DevOps, SQL, REST APIs, GitHub, Python, C#, JavaScript, Microsoft Office
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2mo
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Software Engineer, Infrastructure/Developer Tooling (Hybrid)
Toronto or Denver
$109k-$128k/yr HybridFull Time
Homebase
Homebase: Provides scheduling, payroll, and HR software for hourly teams.
3+ YOE3+ years of software or infrastructure engineering; experience with internal tooling, cloud (AWS) and CI/CD; frontend/backend versatility; strong developer experience focus.
Ruby, Golang, Terraform, AWS, CI/CD, Observability, Infrastructure as Code, Containerization
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2mo
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Structural Intern Engineer
Englewood, Colorado, United States
$72k-$96k/yr OnsiteFull Time
Wallace Design Collective
Wallace Design Collective: Multidisciplinary consulting firm providing engineering, surveying, and landscape architecture services.
0+ YOE0–5 years in structural design; B.S. Civil/Structural Eng; EIT or PE; Denver, CO area or willing to relocate; experience with RISA-3D, RAM Structural System, SAP2000, Revit; knowledge of IBC, AISC, ASCE 7.
RISA-3D, RAM Structural System, SAP2000, Revit
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1mo
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Mechanical Engineer Intern/Co-op Fall 2026 - Energy Solutions
Media or Louisville or Baltimore or Golden or Nashville or Fairfax
OnsiteInternship
Legence
LegenceNasdaq: LGN: Engineering and maintenance services for mission-critical building systems.
Pursuing ABET-accredited undergraduate engineering degree (min GPA 3.39). Proficiency with Microsoft Word and Excel; CAD experience helpful. Strong communication, ability to travel locally for field work. No sponsorship available.
CAD, Microsoft Word, Microsoft Excel
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1mo
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Mechanical Engineer Intern/Co-op Fall 2026 - Energy Solutions
Baltimore or Fairfax or Nashville or Media or Louisville or Golden
OnsiteInternship
Legence
LegenceNASDAQ: LGN: Provides engineering and maintenance services for mission-critical building systems.
Pursuing a mechanical engineering undergraduate degree from an ABET-accredited university (min GPA 3.39). Proficiency with Microsoft Word and Excel; CAD helpful. Strong communication, teamwork, and ability to travel locally for field work.
CAD, Microsoft Word, Microsoft Excel
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1mo
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Senior CNO Developer
Hanover or Aurora
$142k-$236k/yr OnsiteFull Time
ManTech
ManTech: Provides technology solutions for defense and intelligence agencies.
6+ YOETS/SCI w/Poly required. BS+8yrs or MS+6yrs (or HS+12yrs). Experience developing CNO capabilities, Python and C/C++ programming, low-level system internals, TCP/IP and socket programming; troubleshooting and debugging.
Python, C/C++, Assembly, TCP/IP, JIRA, Confluence, Crucible
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3mo
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Marketing Intern
Englewood, Colorado, United States
$18-$20/hr OnsiteFull Time
BrightSpring Health Services
BrightSpring Health ServicesNASDAQ: BTSG: Provider of home and community-based health and pharmacy services.
0+ YOECollege junior/senior or recent graduate pursuing Marketing/Business degree; knowledge of brand development, marketing materials, social and website content; self-starter with proactive attitude.
Microsoft Office Suite, Excel, PowerPoint, Word
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4d
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Spring 2027 Construction Project Engineer Intern ($19-$24)
Denver, Colorado, United States
$19-$24/hr OnsiteFull Time
The Kroger Co.
The Kroger Co.NYSE: KR: Operates supermarkets, pharmacies, and jewelry stores across America.
Currently pursuing a Construction Management or Engineering degree (preferred GPA 3.0); motivated, strong communication, and attention to detail; ability to analyze information and provide customer service.
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2w
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R&D Engineer Intern
Littleton, Colorado, United States
$25/hr OnsiteIntern
Canopy Aerospace & Defense
Canopy Aerospace & Defense: Manufacturer of advanced thermal and signature-reducing aerospace materials.
Currently enrolled engineering student; hands-on lab or project experience; familiarity with CAD (SolidWorks,NX,Fusion) and basic programming (Python,MATLAB); strong communication and technical writing.
SolidWorks, NX, Fusion, CAD, Python, MATLAB
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1w
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Product Development Intern
Thornton, Colorado, United States
$25/hr OnsiteInternship
Solid Power
Solid PowerNasdaq: SLDP: Designs and manufactures all-solid-state battery technology for vehicles.
Currently enrolled in a STEM bachelor's program; academic or industrial lab experience; safe handling of hazardous materials and PPE; familiarity with material characterization and DOE; Microsoft Office; Python or Minitab a plus; strong communication skills.
XRD, TGA, DSC, rheometry, Python, Minitab, Microsoft Office
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1w
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Intern, Organizational Effectiveness & Talent Development
Denver, Colorado, United States
$20/hr HybridPart Time, Internship
National Endowment for Financial Education
National Endowment for Financial Education: Improving financial literacy through research, advocacy, and education.
Part-time paid intern supporting organizational effectiveness, talent management, leadership development, research, training design, and project coordination. Requires strong research, writing, communication, Microsoft Office, and interest in HR/OD fields.
Microsoft Office
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3w
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Intern - Unpaid; BR 21; 7.1.26
Denver, Colorado, United States
HybridInternship, Part Time
Texana Bank
Texana Bank: A regional bank and mortgage services provider offering community banking and mortgage offices with a long local history.
Structured, educational unpaid research internship (approx. 11 weeks). Produce written research report and presentation; conduct research and shadow loan officers. Estimated 18–20 hours/week; must be a minor with schedule accommodating training and school commitments.
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23h
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Instrument Solutions Intern
Denver, Colorado, United States
$25/hr OnsiteTemporary, Part Time
Metro Water Recovery
Metro Water Recovery: Operates wastewater treatment and recovery services in Denver.
Assist with maintenance, calibration, benchtop nutrient analyses, data recording/analysis, and support instrument trials; requires coursework in physical/biological sciences or environmental engineering.
Microsoft Office
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1w
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Environmental Laboratory - Intern
Denver, Colorado, United States
$19/hr OnsitePart Time
Onterris
OnterrisNYSE: ONT: Global provider of environmental consulting, testing, and remediation services.
High school diploma, current university enrollment, basic lab techniques, Microsoft Excel, ability to lift up to 25 lbs, detail-oriented and good communication.
Microsoft Excel
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2d
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Electrical Engineer Intern - Oil & Gas
Lakewood, Colorado, United States
$27/hr HybridInternship
NEI Electric Power Engineering
NEI Electric Power Engineering: Engineers high-voltage electrical infrastructure and renewable energy systems.
Pursuing a bachelor's in electrical engineering, coursework/project experience, AutoCAD experience, effective communication, able to lift 25 lbs, authorized to work in the U.S.
AutoCAD
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3d
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Manufacturing Engineer I - Intern Conversion
Denver or Cape Canaveral or Van Horn or Huntsville or Kent
OnsiteFull Time
Blue Origin: Develops reusable rockets and systems for human spaceflight.
0+ YOEB.S. in engineering (mechanical/manufacturing/industrial/aerospace) within last year, fabrication and assembly experience, ability to interpret drawings and work instructions, internship/co-op or hands-on experience, able to start by Fall 2026, U.S. work-authorization required.
Creo, CATIA, SolidWorks, Python
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