114 development intern jobs at 70 companies in Colorado
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Product Development Intern
Thornton, Colorado, United States
$25/hrOnsiteInternship
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
AESNYSE: AES: Provides electricity and renewable energy solutions globally.
Pursuing a bachelor’s or master’s degree; strong analytical and communication skills; proficient in Excel; attention to detail; GIS/Power BI preferred.
United States or New York City or Boston or Washington or Boulder or San Francisco
$18/hrRemoteFull Time
Environmental Defense Fund: Finds science-based solutions for urgent global environmental problems.
Enrolled in or recent graduate of an undergraduate program; basic Microsoft Office skills; confidentiality with sensitive data; Salesforce experience a plus; strong communication, organization, and attention to detail.
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.
California or Maryland or New Jersey or Illinois or Washington or Colorado
$150k-$187k/yrRemoteFull Time
ZEISS: Produces high-precision optical systems and optoelectronic technologies.
5+ YOEMaster’s degree; 5+ years in business development; international, cross-functional experience; contract negotiations; high-tech/ophthalmic or related industries.
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.
Remote or Los Angeles or San Francisco or Denver or Atlanta or Chicago or Detroit or Madison Heights or New York or Dallas
$120k-$145k/yrRemoteFull Time
HenkelXETRA: HEN3: Manufactures laundry, beauty, and adhesive products globally.
5+ YOEBachelor’s degree required; MBA preferred. 5+ years in electronics/electrification industry with applications and market trends experience. Strong networking, negotiation, and project leadership skills. Ability to travel up to 30% (including international).
Maxx Properties: Owns and manages a nationwide portfolio of multifamily apartment communities.
Some college in Business/HR, proficiency in Microsoft Office, strong organizational and communication skills; preferred experience with Canva, Microsoft Forms, basic video editing and AI tools; familiarity with LMS.
Microsoft Office, LMS, Canva, Microsoft Forms, ChatGPT, Claude
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.
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.
Ursa Major: Designs and manufactures rocket engines and aerospace propulsion systems.
12+ YOESenior sales leader with minimum 12 years in aerospace/defense sales or capture, proven federal procurement success, FAR/DFARS knowledge, team leadership, ability to obtain U.S. security clearance, onsite in Berthoud CO with extensive domestic and some international travel.
Rendezvous Robotics: Develops self-assembling modular tiles for in-space infrastructure.
Pursuing an engineering/physics/math degree with coursework in dynamics and controls; working knowledge of Python, C++, or MATLAB/Simulink; understanding of rigid-body dynamics and electromagnetics; strong communication and analytical skills.
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.
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.
Los Angeles or Washington or Wyoming or Wisconsin or West Virginia or Washington or Virginia or Vermont or Utah or Texas or Tennessee or South Dakota or South Carolina or Rhode Island or Pennsylvania or Oregon or Oklahoma or Ohio or North Dakota or North Carolina or New York or New Mexico or New Jersey or New Hampshire or Nevada or Nebraska or Montana or Missouri or Mississippi or Minnesota or Michigan or Massachusetts or Maryland or Maine or Louisiana or Kentucky or Kansas or Iowa or Indiana or Illinois or Idaho or Hawaii or Georgia or Florida or Delaware or Connecticut or Colorado or California or Arkansas or Arizona or Alaska or Alabama
RemotePart Time
Wasserman: Global agency representing sports, music, and entertainment talent.
Must be eligible for college credit, 20+ hrs/week from Sept 9–Dec 11, 2026. Strong research and writing skills, interest in non-fiction/storytelling, coursework in journalism/creative writing preferred; Canva experience a plus.
RXONYSE: RXO: Provide asset-light transportation and freight brokerage solutions.
1+ YOEMinimum 1 year procurement experience; responsibilities include cold calling, lead development, rate negotiation, and updating internal systems. Bachelor’s degree preferred; transportation, sales, or customer service experience a plus.
26 - School Psychologist Intern (2026 - 2027 School Year)
Pueblo, Colorado, United States
$28k/yrOnsiteContract
Pueblo School District 60: Operates public K-12 schools and educational programs in Pueblo.
In progress Educational Specialist degree in School Psychology; eligible for Colorado CDE intern authorization; experience with assessment, program development, consultation, behavior intervention, and multidisciplinary teamwork.
United States or Princeton or Durham or Westminster
$35k-$47k/hrRemoteFull Time
TrimbleNASDAQ: TRMB: Provides hardware and software for precision positioning and modeling.
Outbound prospecting and lead qualification, strong communication, multi-channel prospecting management, cross-functional collaboration, flexibility to work with international teams across European time zones.
2026 Summer Intern, Human Resources (Talent Acquisition)
Denver, Colorado, United States
$19-$24/hrOnsiteInternship
Frontier AirlinesNasdaq: ULCC: Provides low-fare passenger air transportation services across the Americas.
University enrollment preferred; coursework in HR, Communications, or Organizational Development preferred; customer service or event planning experience preferred; strong office and communication skills; proficiency with Microsoft Word and Excel.
Microsoft Word, Microsoft Excel, Learning Management System (LMS)