Top Internships in Denver & Boulder, CO

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 planning, executing, and optimizing paid digital acquisition campaigns. Coordinate content and landing pages, run A/B tests, analyze marketing data, create performance reports, and recommend optimizations to improve ROAS.

Manage three branded Reddit accounts: post 2–3 times per week per brand, engage with users and comments per brand guidelines, craft brand-specific Reddit strategies, and coordinate with an outside contractor to manage meetings and goals.

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.

Support pharmacy operations by assisting the pharmacist with dispensing prescriptions, entering patient data, processing insurance, providing drug counseling and OTC recommendations, administering immunizations under supervision, stocking and maintaining inventory, and ensuring a safe, clean, customer-focused environment.

Provide customer-focused pharmacy support including dispensing medications, inputting prescription and patient data, counseling customers, recommending OTC products, processing insurance, assisting pharmacist with immunizations under supervision, maintaining department cleanliness, stocking and checking orders, and ensuring safety and regulatory compliance.

Provide customer-focused pharmacy support: counsel patients, assist pharmacists with dispensing and immunizations, process prescriptions and insurance, maintain inventory and cleanliness, and ensure safety and regulatory compliance.

Provide customer-focused pharmacy support: counsel customers, recommend OTC medications, accurately input and dispense prescriptions, process insurance, assist with immunizations under pharmacist supervision, maintain inventory and cleanliness, and support department sales and safety standards.

Support pharmacy operations by counseling customers, dispensing medications, processing prescriptions and insurance, stocking and maintaining inventory, and assisting the pharmacist with immunizations and quality standards while delivering excellent customer service.

Provide customer-focused pharmacy support including dispensing medications, processing prescriptions and insurance, counseling patients, recommending OTC products, assisting with stock and inventory, performing immunizations under pharmacist supervision, and maintaining safety, cleanliness, and regulatory compliance.

Tax Interns prepare tax returns, perform basic tax research, learn core tax concepts, and support domestic and international client engagements. Roles include teamwork, training, occasional evenings/weekends, and possible client-site travel.

Winter audit internship providing hands-on exposure to auditing client financials, transactions, and internal controls. Use audit tools, analytics, and data visualizations to analyze client data. Work on diverse client engagements including manufacturing, nonprofit, government, healthcare, and benefit plan audits. Collaborate with experienced professionals, prioritize multiple assignments, and may require travel or weekend/evening availability.

Summer internship to build production-facing realtime intelligence for a mobile app that optimizes campus quest participation. Design context-aware quest logic, detect stalls/drop-offs, suggest micro-actions, instrument evaluation loops, and ship components on top of existing realtime systems to improve behavioral outcomes like IRL quest completion and retention.

Summer audit internship providing hands-on exposure to auditing client financials, transactions, and internal controls. Work with audit tools, Excel, and data analytics to analyze client data, support diverse industry engagements, and perform benefit plan audits while receiving mentorship from experienced audit professionals.

Work alongside outreach and clinical staff to engage 18-24-year-old youth experiencing homelessness across NYC; distribute supplies, provide referrals to shelter, healthcare and employment services, support crisis intervention and documentation, and attend trainings and team meetings.

12-week hands-on internship building full-stack features: frontend with React and TypeScript; backend services and REST APIs in Python (FastAPI); enterprise data integrations and ingestion pipelines; write tests, participate in Agile processes, code reviews, and troubleshoot production issues while learning AI and cloud technologies.

Support the Engineering team by assisting with data ingestion, transformation, and pipeline development; perform exploratory data analysis and visualizations; build/query SQL databases; contribute to codebases using Git; document pipelines and findings; complete well-scoped software tasks under mentorship.