Top Internships in San Diego, CA

The Process Engineering Intern will support manufacturing process improvements, automation and robotics integration, process control, yield improvement, and cost reduction. Responsibilities include designing and analyzing experiments, documenting work instructions, benchmarking industry practices, leading capital project efforts, participating in design reviews, and presenting project updates. The role requires cross-functional collaboration, engineering problem-solving, and limited travel for workshops and trade shows.

Marketing and Sales Interns support marketing and sales enablement initiatives, including social media and digital marketing projects. They collaborate with experienced team members, learn about insurance agency operations, build professional networks, and contribute to organizational marketing efforts while developing foundational business skills.

Supports the Corporate Marketing team with day-to-day marketing and growth initiatives, including social media and digital marketing projects. The intern will collaborate across the organization, develop an understanding of insurance industry operations, strengthen organizational and communication skills, and network with company leaders. The role includes an opportunity to travel to the corporate office in Richmond, Virginia and may lead to full-time employment after graduation.

Accounting Intern in a 12-week summer program supporting SOX documentation, journal entries, month-end close, account reconciliations, U.S. GAAP financial reporting, regulatory filings, audit requests, and process improvements.

Assist project teams with construction projects while learning budgets, cost accounting, invoices, contracts, change orders, scheduling, job-site coordination, quality control, and safety processes. The role supports construction project execution and requires full-time availability for at least three months while pursuing a relevant bachelor's degree.

Supports the Consumer UX Design team with design system maintenance and UX initiatives throughout the product development lifecycle. Assists with market and competitor research, product documentation, roadmap tracking, cross-functional communication, performance reporting, and creation of user guides and training materials. The 12-week internship also includes a capstone project, leadership sessions, financial literacy training, and professional development opportunities.

Performs general accounting activities, including ledger maintenance, account reconciliations, financial statement preparation, transaction analysis, budgeting and forecasting, statutory reporting, variance analysis, and accounting project documentation.

Mission Lead Interns embed with defense customers, identify mission problems, configure and test AI workflows, troubleshoot deployments, onboard users, demonstrate mission impact, and expand customer relationships. The role requires independent execution in ambiguous environments, close coordination with Product, Engineering, Mission, Security, and Operations teams, frequent customer-site travel, and a current TS/SCI clearance.

Safety interns train with department management and staff, gain experience with functional tools, and complete supervised assignments and projects. Duties include supporting departmental work, complying with laws and company policies, solving problems, communicating effectively, and working independently or collaboratively. Assignments align with the intern’s field of study, such as business, industrial hygiene, safety, supply chain, or another quantitative discipline.

Supports the product development lifecycle through market and competitor research, product documentation, roadmap tracking, cross-functional coordination, performance metric reporting, and creation of user guides and training materials. The intern participates in a 12-week program including a capstone project, leadership sessions, financial literacy training, and professional development activities.

Supports the UX Research team by gathering market and competitor data, analyzing trends, maintaining product documentation, tracking roadmap progress, coordinating cross-functional communication, organizing performance metrics, preparing leadership reports, and creating user guides and training materials. The 12-week internship also includes professional development, a capstone project, leadership sessions, and financial literacy training.

Supports commercial banking and treasury management teams through client onboarding, account maintenance, sales activity tracking in Salesforce, process documentation, client service, and strategic projects. The intern will gain exposure to banking processes, regulatory frameworks, treasury management, and sales operations during a 12-week summer internship program.

MBA finance interns will analyze business data, identify trends, build forecasts, develop strategic recommendations, and create reports for senior stakeholders. They will partner with Finance and business teams, communicate insights, manage projects, and support budgeting and performance analysis. The role requires quantitative, financial modeling, SQL, data visualization, AI judgment, and strong communication skills. It is remote eligible within approved U.S. states and offers $48 per hour.

Engineering intern trains with department staff, develops knowledge of applications and tools, and completes supervised assignments and project work related to their field of study. Responsibilities include participating in department projects, solving problems, following company policies, communicating effectively, and working independently or collaboratively. The role requires current junior-level-or-above enrollment or recent graduation, a quantitative or engineering-related major, a minimum 3.0 GPA, organizational skills, reliability, and Microsoft Office proficiency.

Hands-on R&D internship supporting solar panel experiments at First Solar's California Technology Center. Work with engineers and technicians on inkjet printing and spray coating of uniform thin films, collect and analyze experimental data, use MS Excel, collaborate with team, and present project results to leadership. Internship runs 3-5 months during the fall term.

Supports Quality Engineering projects in a medical device micro-manufacturing environment under the guidance of a Quality Engineer. Responsibilities include line layout, process mapping, procedure and work-instruction drafting, fixture improvement and design, 5S and Lean Kaizen events, validation protocol execution, and project presentation and reporting.

Manufacturing Engineering Intern supporting process development, metrology, statistical analysis, tooling and fixture fabrication, manufacturing documentation, process validations, training materials, and continuous improvement initiatives under the guidance of a Manufacturing Engineer.

Remote HR internship supporting end-to-end talent acquisition. Responsibilities include posting job openings, screening resumes, shortlisting candidates, coordinating interviews, scheduling, and maintaining candidate data. The role includes weekday work from 9 AM to 6 PM, a Saturday discussion session, mentorship, networking, and an internship certificate upon completion.

Support website content editing, formatting, and publishing. Update job listings and resources, optimize content for SEO and accessibility, test site functionality, integrate multimedia, and collaborate with marketing to maintain brand voice and improve usability.

Participates in supervised department projects and tasks while gaining practical experience in revenue quality and related functional areas. Uses business applications and Microsoft Office tools, follows company policies and regulations, solves problems, communicates effectively, and works independently or collaboratively. Assignments align with the intern’s field of study in business, finance, accounting, statistics, or another quantitative discipline.

Support recruitment, campus outreach, and partnership development. Source, screen, and shortlist candidates; hire campus ambassadors and sales interns; coordinate onboarding, meetings, and payments; maintain partner relationships and track deliverables.

Support Web3 users and technical operations across Telegram, Discord, blockchain infrastructure, RPC services, and AI-powered support workflows. Triage node and synchronization issues, develop and troubleshoot Telegram Bots and Mini Apps, maintain knowledge-base content, coordinate urgent issue resolution, and document solutions. The role requires blockchain fundamentals, programming ability, technical troubleshooting, responsive communication, and five-day weekly availability.

Supports research into patient and caregiver experiences through interviews, surveys, focus groups, data analysis, usability testing, and reporting. Collaborates with therapists, administrators, and designers to improve digital interactions, accessibility, service efficiency, and patient care.

Participate in a 12-week IT internship supporting business applications, infrastructure, cybersecurity, data analytics, technical support, and digital transformation initiatives. Assist with implementations, system and data analysis, process improvement, user support, documentation, research, and cross-functional problem solving. Interns will develop technical and business skills, receive mentorship, and present project learnings to leadership through a final PowerPoint presentation.

Supports semiconductor wafer fabrication process integration by troubleshooting yield and performance issues, investigating root causes, assisting tool qualification and validation, performing failure analysis, monitoring SPC charts, analyzing MES data, coordinating production lots, and contributing to continuous process improvement.