Internships in Colorado, United States

Google's Software Engineering Internship program for PhD students in their penultimate academic year offers a 12–14 week paid internship across multiple U.S. locations. Interns work on specific projects critical to Google's needs, designing, testing, deploying, and maintaining software solutions while collaborating on complex computer science problems and scalable distributed systems.

Advanced Space's Systems Engineering team is enabling humanity's return to the Moon and building technologies for Mars and beyond. As a 2027 Systems Engineering Summer Intern, you will support spacecraft and mission systems development through requirements, architecture, interface definition, trade studies, analysis, and integration, verification, and validation activities under mentorship.

Advanced Space is enabling humanity's return to the Moon and building technologies for Mars and beyond. The 2027 Software Engineering Summer Intern will join the software engineering team in Westminster, CO on-site, gaining hands-on experience developing software solutions that support real space missions.

Advanced Space's astrodynamics team is enabling humanity's return to the Moon and building technologies for Mars and beyond. As a 2027 Mission Design Summer Intern, you will support mission design research and development, work on summer projects involving spacecraft mission design, trajectory analysis, and advanced spaceflight concepts, and apply orbital mechanics, programming, and numerical methods to analysis and simulation workflows.

Advanced Space's astrodynamics team is enabling humanity's return to the Moon and building technologies for Mars and beyond. As a 2027 Navigation Summer Intern, you will support spacecraft navigation and mission design projects, solving challenges like NRHO stationkeeping, trajectory optimization, and optical navigation using AI, while gaining hands-on experience and mentorship.

Advanced Space's People team is seeking a Team Member Success Intern to support recruiting and talent acquisition for a growing aerospace company enabling humanity's return to the Moon. Day-to-day work includes candidate sourcing, interview scheduling, candidate communication, and maintaining an organized candidate pipeline while learning the full recruiting lifecycle.

Advanced Space is enabling humanity's return to the Moon and building technologies for Mars and beyond, and is seeking a 2027 Machine Learning Summer Intern to help push the state of the art in aerospace applications. Day-to-day, you will design, develop, test, and apply machine learning models to solve complex engineering challenges such as spacecraft autonomy, anomaly detection, NLP, uncertainty quantification, and multimodal signal detection, while collaborating with aerospace and software en

Advanced Space is enabling humanity's return to the Moon and building technologies for Mars and beyond. The 2027 DevOps Summer Intern will join the DevOps team to support cloud infrastructure, development tools, and automation processes that enable mission-focused software development.

The Brighton Police Department Explorer Program is a non-paid internship for young men and women aged 14-21 interested in law enforcement. Explorers build leadership skills and gain hands-on experience through monthly ride-alongs, training classes, community service, and regional/national conferences.

Annie Aesthetic is a fast-growing private equity platform in medical aesthetics, operating medspas and functional health clinics across the U.S. The Social Media Intern helps run content and engagement across the portfolio of medspa and wellness brands, with ownership over accounts rather than busywork. Day-to-day work includes creating and editing reels/video content, designing on-brand graphics in Canva, repurposing posts, driving follower growth through profile engagement, keeping bios and vi

Kimley-Horn is seeking Engineering students to join its Broomfield, Colorado office as Civil Engineering Interns. Interns will use technical software to analyze, produce, and QC deliverables, contributing to pre-construction civil engineering design, planning, modification, permitting, and analysis across multiple projects.

The School Counseling team seeks a Counselor Intern to support student well-being under the supervision of licensed counselors. The role involves providing individual and group counseling services, utilizing consultation techniques to promote engagement, and assisting with classroom involvement.

Sample Supports offers a Social Work Generalist Internship in Longmont, Colorado, providing students with broad exposure to clinical, case management, and community-based services. Interns engage in direct practice, advocacy, and policy analysis across diverse populations including adults with IDD, youth, and seniors.

PCL Construction Services, Inc. seeks a Field Engineer Intern to support project teams in Denver or Aspen, gaining experience in construction management and field supervision. The role involves assisting with safety and quality audits, interpreting drawings, managing submittals, and coordinating subcontractors under mentor guidance.

JE Dunn Construction seeks a Campus Intern to support construction and administration functions, including project management, estimating, and safety. The role provides hands-on experience by monitoring project metrics, conducting site observations, and assisting with vendor coordination under direct supervision.

Continental is seeking a Marketing Intern to support the Bicycle Tires Division in the Americas, helping ensure smooth operations across athlete engagement, media orders, contracts, purchasing, and event planning. Day-to-day work includes assisting with event planning across the Americas, coordinating tire orders for athletes and sponsors, managing DocuSign workflows, tracking purchase orders and invoices, and researching high-growth cycling events and influencers.

The Office of Emergency Management Access and Functional Needs team at the Colorado Department of Public Safety seeks a Spring 2027 Intern to support inclusive emergency planning in Centennial, CO. This hybrid role involves assisting with event production, marketing initiatives, data analytics, and conference coordination. The position offers practical experience in public safety while requiring flexible in-office attendance.

HSE Student on the Denver District HSE team at PCL Construction, supporting health, safety, and environment programs on construction sites. Assists with inspections, incident investigations, safety documentation, and OSHA compliance while learning from a dedicated mentor.

Advanced Energy Engineering team designs high‑performance power conversion solutions. Interns support circuit design, prototype testing, and control algorithm development while collaborating with senior engineers in a Fort Collins lab environment.

College Financial Representative Internship Program at Northwestern Mutual builds future financial planners by providing guidance, networking, and a framework for integrated financial planning. Interns prospect, develop business strategies, meet clients, prepare plans, and use proprietary software while receiving weekly coaching and licensing training.