Top Internships in Denver & Boulder, CO

Part-time remote internship supporting the Email Automation team: transfer and code email copy into templates, maintain templates, perform QA, run semi-weekly A/B tests and data tracking, and assist with organizational and cross-functional email operations.

Assist in monitoring insider risks, support data protection, investigate security alerts, and maintain operational governance in a security team.

Hands-on internship supporting design, development, and testing of ground support equipment (GSE) for spacecraft. Tasks include mechanical and electrical design, PCB/layout support, DAQ integration, test system fabrication and checkout, wiring and signal-integrity work, documentation, on-site test support, and collaboration with cross-functional engineering teams.

The Phishing Analyst-SkillBridge Intern will assist in threat detection and analysis, focusing on phishing attempts. Responsibilities include identifying and mitigating threats using AI and collaborating with teams to enhance cybersecurity measures.

Part-time remote legal internship supporting regulatory and marketing compliance. Conduct FDA/FTC and advertising legal research, review marketing materials, draft memos, assist with contract lifecycle and corporate records, and support policy and training development.

Remote internship supporting tax research, testing, and documentation. Duties include researching tax form changes, interpreting tax code updates, writing requirements for programmers, designing and executing test cases, validating tax calculations, and contributing to release notes and customer guidance while learning tax software and tools.

Manage day-to-day operations for two YouTube podcast channels: review 3–4 edited videos weekly, curate IG/TikTok clips, maintain podcast/YouTube schedule, write podcast ads, create mash-up episodes, and support PR/marketing projects and freelance editing coordination.

This intern role in Federal Security Operations focuses on cybersecurity, project tracking, and maintaining relationships with customer stakeholders in a mission-driven environment.

This internship role focuses on SRE skills, requiring collaboration and problem-solving in dynamic environments for Zscaler's Zero Trust Exchange team.

As a Detection Engineer Intern, you will analyze telemetry, research coverage opportunities, improve workflows, and communicate threat findings effectively.

Support execution of large-scale B2B outbound and demand-generation campaigns: build outreach sequences, manage outreach tools, enrich and QA data, maintain outbound infrastructure, coordinate webinar and content syndication operations, research target accounts/ICPs, assist reporting, and apply AI tools to automate workflows.

Participate in a six-month Grid Automation and Software internship, enhancing existing solutions and developing commercially viable features. Apply electrical engineering, physics, power systems, and AI/ML concepts to solve industry and customer challenges. Contribute to pilot projects involving intelligent software and modern grid technology while collaborating with experienced professionals. The role requires full-time summer availability, work in offices and sites, and legal authorization to work in the application country.

Supports Grid Automation and Software projects by enhancing existing solutions, developing commercially viable features, and addressing customer and industry challenges. Applies electrical engineering, physics, power systems, protection and controls, and AI/ML concepts. Contributes to pilot initiatives and modern energy infrastructure projects while gaining experience with grid automation technologies, IEC standards, fault detection, and grid stability.

Work as a Python development intern building applications and APIs, processing and analyzing data, working with databases and data pipelines, contributing to system architecture, writing clean documented code, and collaborating with the team. Strong emphasis on backend development, SQL, ORMs, and REST API design with potential conversion to full-time.

Work on real-world web applications across frontend and backend. Use modern frontend frameworks (React/Angular/Vue) and backend tech (Node.js, Python, Java, PHP). Integrate RESTful APIs with databases (MongoDB, PostgreSQL, MySQL), debug, test, optimize performance, and collaborate with designers and product teams while gaining hands-on mentorship.

Assist in developing and maintaining cross-platform Flutter apps for Android and iOS, implement UI/UX with Flutter widgets, integrate Firebase and REST APIs, debug and optimize performance, and collaborate with the team while staying current with Flutter/Dart technologies.

Provides pharmacy support in a retail setting by counseling customers, processing prescriptions and insurance, dispensing medications, assisting with immunizations under pharmacist supervision, maintaining inventory, and following safety and quality standards.

Internship opportunity with BSI, a global business improvement and standards company. The posting provides an overview of BSI’s mission, international reach, industry expertise, and commitment to creating positive social and environmental impact. Specific intern responsibilities, qualifications, compensation, location, travel, and technical requirements are not provided.

Assists research teams with participant recruitment, enrollment, engagement, data collection, data entry, quality assurance, literature reviews, synthesized presentations, and project deliverables. Works under close supervision while following study protocols, good clinical practices, and research policies. Research topics include mobile and digital health, health information technology, and chronic condition management.

Supports medical device production through engineering investigations, troubleshooting, validation reporting, process improvement, scrap reduction, output increases, and new product or process development. The intern reviews production reports, attends daily standups, plans and executes projects, and collaborates with cross-functional teams to improve safety, quality, delivery, and cost outcomes.

Ten-week interns support DESRI’s Business Operations, Recruiting, and Human Capital teams. Responsibilities may include improving firmwide processes, coordinating cross-functional projects, conducting candidate research and recruiting analytics, supporting interview programs and employer branding, contributing to employee programs and talent management, and developing actionable people or operational analyses. Interns collaborate with mentors and project managers, visit a renewable energy asset, and present their work at the end of the summer.

Supports DESRI’s Legal team on renewable energy project development, acquisitions, financings, construction, and operations. Responsibilities include legal research, transaction and project document review and preparation, due diligence, and assistance with commercial and portfolio-related legal matters. The intern will collaborate with legal and business teams, gain exposure to project finance and transactional law, and present work to colleagues at the end of the 10-week program.

Ten-week summer interns support DESRI’s Finance & Acquisitions and Strategy teams by building financial analyses and investment models, conducting due diligence, researching power markets and competitors, evaluating renewable energy and storage opportunities, and synthesizing insights for investment and business planning decisions.

Participates in Molina Healthcare’s internship program through experiential learning, formal training, and interaction with healthcare business professionals. Maintains confidentiality and HIPAA compliance, follows company policies, meets attendance and work-quality expectations, and builds positive relationships with coworkers, clients, members, and healthcare providers.

Ten-week physical team internship supporting renewable energy projects across asset management, construction, engineering, development, preconstruction, project management, and project delivery. Responsibilities may include technical and commercial analysis, reporting, schedule and budget coordination, contractor and stakeholder coordination, project design evaluation, permitting and interconnection analysis, constructability, and cross-functional project execution for solar, battery storage, and wind assets.