Top Internships in Jacksonville, FL

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.

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.

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.

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.

Support engineering teams by performing basic engineering tasks: assist with research, development, design, preparation of engineering drawings/documents, basic calculations, and learning shop drawing/submittal procedures. Follow direction and organize information for project use.

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

Gains hands-on experience in electrical installation field operations, including safety, materials, equipment, installation processes, equipment operation, and blueprint reading. Completes branch manager-directed projects involving field experience, market research, project documentation software, and quality assurance and quality control standards. Works outdoors, performs moderate manual labor, collaborates with employees, customers, and vendors, and may travel across state lines.

Support design and development of electrical and mechanical aircraft engine components. Work may include requirements definition, design and analysis, hardware build, lab testing, and product/program support while receiving mentorship and training. Prepare for potential full-time hiring after graduation.

Participate as an engineering intern supporting Unison product development across electrical and mechanical systems. Work may include requirements definition, design and analysis, hardware build, lab testing, and program support under mentorship, with focus on aerospace engine components.

Support engineering teams on product development for aircraft engine components: define requirements, design and analyze electrical/mechanical systems, build hardware, perform lab testing, and provide program support. Gain mentorship, training, and potential path to full-time hire.

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

Summer internship supporting supply chain operations including materials management, sourcing, supplier coordination, and manufacturing support. Interns apply Lean/Six Sigma, perform root cause analysis, support EHS initiatives, and build project management and negotiation skills while working at GE Aerospace sites.

Summer internship to build hands-on manufacturing and assembly skills: support manufacturing/repair processes, apply risk assessment and root cause analysis, use statistical controls, and learn Lean/Six Sigma. Work with suppliers and shops, support delivery efforts, and follow EHS standards while developing project management and continuous-improvement capabilities.

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.

Support development, organization, and improvement of youth-focused curriculum by drafting objectives, activities, facilitator guidance, and student resources; maintain digital course materials and SharePoint hub; assist with professional development content and cross-team initiatives to ensure accessible, youth-centered learning experiences.