Top Internships in St. Louis, MO

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

Assist engineering teams with research, design, and preparation of engineering drawings and documents; perform basic engineering calculations and support tasks under supervision.

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.

Hands-on agency internship creating and optimizing digital content, managing social media and brand channels, conducting market research and competitive audits, analyzing campaign performance and reporting ROI, and supporting web/SEO improvements. 12-week, in-office role for portfolio-building.

Support digital marketing and community efforts in MENA: gather and manage data for content and campaigns, handle community queries on Telegram/Discord, use campaign portals (Task On, Galaxy, Zealy), conduct data research, assist lead generation, monitor campaign metrics, and follow the content plan to improve engagement and ROI.

Remote, unpaid 6-month UI/UX internship (20 hrs/week) supporting the Marketing team: create wireframes, prototypes, high-fidelity designs, conduct user research and usability testing, maintain design systems, collaborate cross-functionally, iterate based on feedback, and support product strategy while meeting deadlines.

Support marketing analytics by analyzing digital channel performance, building and maintaining KPI dashboards, ensuring data accuracy, and collaborating with cross-functional teams to turn insights into actionable recommendations.

Remote unpaid 20-hr/week graphic design internship supporting marketing: create social, presentation, web, and multimedia assets; maintain brand consistency; iterate on designs; collaborate with teams; learn design and digital marketing best practices.

Remote unpaid video-editing internship: edit and assemble raw footage into polished content, add transitions, color correction, sound design, graphics and captions, adapt assets for social platforms, manage multiple projects, iterate on stakeholder feedback, and organize media libraries while collaborating with marketing and creative teams.

The actuarial intern will perform mathematical and clerical actuarial tasks, compile and verify data, support loss and expense reserve evaluations, prepare rate filings and financial schedules, and assist with premiums, benefits, pricing, and other assigned projects.

Support the sales team by researching markets, identifying B2B opportunities, preparing sales materials and proposals, attending meetings, and collaborating with cross-functional teams to help drive client satisfaction and business development.

Support the sales team by identifying leads, conducting market research, preparing sales materials and proposals, participating in meetings and presentations, and collaborating with cross-functional teams to help drive business development and ensure client satisfaction.

Support international B2B sales through lead generation, prospect qualification, outreach, CRM data hygiene, sales material preparation, market research, pipeline tracking, and cross-team collaboration while learning sales processes.

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.

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.

Supports consumer marketing campaigns for government clients across email, social media, creative adaptation, reporting, analysis, quality assurance, and project coordination. The intern creates and proofreads campaign content, prepares visual assets, analyzes performance data, develops reports, identifies optimization opportunities, and helps ensure timely delivery of campaign materials.

Student internship supporting People Operations: create a strategic hiring plan for a part-time Coordinator, build internal communication structures for the internship program, and complete a course-aligned project with mentor guidance to develop internal processes for educational and marketing teams.

Project-based marketing internship creating a marketing strategy for JMI's educational content. Interns work within a six-person marketing team, are matched with volunteer mentors, and will produce strategic media to promote content and membership. Flexible project scope to meet spring internship course requirements.

Create standard design guidelines and graphic assets to support the marketing team and fellow interns. Work is project-based, guided by a volunteer mentor, and flexible to meet course internship requirements.

Support JMI's marketing team by creating customer profiles, helping develop targeting strategies for other interns, and completing a flexible, course-aligned market research project under mentor guidance.

Supports analytics, automation, and applied research by analyzing datasets, identifying trends, building automated reporting and data-processing workflows, and prototyping models or tools. The role requires pursuing a degree in Data Science, Statistics, Computer Science, or a related field, along with Python and SQL proficiency. Cloud platforms, machine learning libraries, and visualization tools are beneficial. The position is remote-first but requires camera use during all virtual meetings and a pre-employment drug test.

Own end-to-end product features: conduct user research, translate insights into specs and user stories, collaborate with engineering/design/growth, analyze product data, support sprint planning/QA/releases, benchmark competitors, and build roadmaps and documentation to launch features.

Run and coordinate qualitative user research: plan and moderate interviews and focus groups, translate goals into discussion guides, produce transcripts and structured insight summaries, and communicate findings to product teams while working remote-first.

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.

Work as a hands-on Product Management intern owning features end-to-end: run user research, write specs and user stories, work with engineering/design/growth to ship, analyze product data, support sprint planning and QA, benchmark competitors, and build roadmaps and documentation.