Top Internships in Jacksonville, FL

Conduct cold calls and outreach to candidates, build relationships, manage contact lists, and guide candidates toward successful placements. The role offers training, flexible remote work, and uncapped commission of $5,000 per placement. No prior recruiting experience is required.

Remote internship assisting with software application development, testing, debugging, maintenance, API integrations, code reviews, documentation, and product delivery. The role provides mentorship and hands-on experience for students, freshers, or aspiring developers while developing clean, maintainable code and learning industry practices.

Support faculty development and instructional quality for ERAU Worldwide by reviewing courses, observing teaching, designing and delivering professional learning, ensuring adherence to best practices and contractual standards, and participating in special projects to improve course management and student success.

Marketing Intern will support social media and broader marketing campaigns by creating content, monitoring engagement, researching trends, and managing marketing materials. The role works closely with the marketing team and Head of Marketing in a remote environment. Candidates will gain practical experience in social media communication, content creation, campaign execution, and marketing strategy.

Develop and maintain web application user interfaces using HTML, CSS, JavaScript, and modern front-end frameworks. Assist with style guides, review and debug code, and support usability, quality, and performance improvements. Collaborate with developers and designers in a fast-paced environment while gaining practical experience in UI/UX principles, responsive design, and front-end development.

Research emerging cybersecurity threats, vulnerabilities, and trends; analyze threat intelligence data; support incident response and forensic investigations; collaborate on security technology development; and stay current with evolving threat intelligence methodologies and tools.

Summer Audit Intern will support audit and tax engagements, work directly with clients, receive two weeks of onboarding plus ongoing training, learn public accounting technologies, and get structured feedback from managers while progressing toward CPA eligibility.

Short-term winter internship (Jan–Apr 2027) providing hands-on audit experience: client work, structured feedback, training on public accounting technologies, and professional development.

Audit intern role for accounting students pursuing CPA eligibility. Interns work on client audit and tax engagements, receive two weeks of onboarding training plus ongoing technical and soft-skills development, learn public accounting technologies, get mentorship and structured feedback, and network with firm leaders and colleagues.

Summer audit intern works on client engagements to gain hands-on audit and tax experience, receives two weeks of training plus ongoing coaching, learns public accounting technologies, and gets structured feedback from managers while networking with firm leaders.

Audit Intern will gain hands-on audit and tax experience working directly with clients, receive structured feedback from managers, and participate in training on public accounting tools and soft skills, including a two-week onboarding program.

Support and grow Wondy’s social media across LinkedIn, Instagram, Twitter, and other platforms. Create and schedule engaging content, monitor performance metrics, interact with followers, and provide insights. Collaborate with founders, propose trends-driven ideas, and use tools like Framer and HubSpot to streamline workflows and analytics.

Lead Marketing / Public Relations Intern will own marketing and PR initiatives, collaborate with founders on branding, analyze market trends, manage campaigns, and use Google Workspace, HubSpot, and Framer. Opportunity to grow into a full-time leadership role at an eCommerce-focused AI startup.

Create lists of potential members, collaborate with market research to identify interested groups, and complete a flexible, mentor-guided business development project aligned with internship course requirements.

Project-based internship to create an introductory Economic Anthropology course (medium of your choice) focused on sustainability, equity, and efficiency. Interns are matched with volunteer mentors, must meet academic internship requirements, and will develop educational content flexible to course needs.

Work as a project-based communications intern within a six-person marketing team. Create a strategic communications plan targeted to specific audiences, develop marketing strategies to promote educational content and boost membership, and collaborate with a volunteer mentor and staff. Projects are flexible to meet spring internship course requirements.

Supports identity and access management operations, including account provisioning, access modifications, deprovisioning, RBAC, access reviews, MFA enrollment, password resets, troubleshooting, compliance audits, process documentation, research, reporting, and IAM projects in a healthcare environment.

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.

Support go-to-market strategy and execution across inbound and outbound channels: define ICPs, join user calls, create Excel demo videos, run outreach using Clay/HeyReach/Instantly, post and measure performance on social platforms, and optimize funnel metrics (visits, conversion, retention, referral).

This 10-week, part-time Research Internship involves designing and executing an end-to-end behavioral health research project using clinical data. Responsibilities include applying quantitative and qualitative methods, analyzing findings, preparing and submitting a manuscript to a peer-reviewed journal, collaborating cross-functionally, and sharing insights that inform care models and organizational strategy.

Supports specific stop loss claim audits by reviewing medical documentation, validating records, analyzing medical and pharmaceutical claims data, identifying discrepancies and overpayments, and preparing audit reports. Uses Microsoft Office tools to organize and report findings while maintaining PHI confidentiality. Collaborates with auditors on process improvement and special projects in a flexible, remote, approximately 20-hour-per-week internship.

Supports specific stop loss claim audits by reviewing medical documentation, validating records, analyzing medical and pharmaceutical claims data, identifying discrepancies and overpayments, and preparing reports. Uses Microsoft Office tools to organize and report findings, maintains PHI confidentiality, communicates audit results, and assists with process improvement initiatives. This is a remote, flexible internship of approximately 20 hours per week.

Supports specific stop loss claim audits by reviewing medical documentation, validating records, analyzing medical and pharmaceutical claims data, identifying discrepancies and overpayments, and preparing audit reports. Uses Microsoft Office tools to organize and report findings, maintains PHI confidentiality, communicates with audit team members, and assists with process improvement projects. This is a remote, flexible internship of approximately 20 hours per week.

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.