Top Internships in San Diego, CA

Graduate research interns will own end-to-end projects developing customer world models and proactive intelligence. Work spans representation learning, foundation models, reinforcement learning, agentic decision systems, and evaluation. Tasks include designing methods, running experiments, publishing findings, and potentially shipping models into production to impact customer-facing products.

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

Interns work on gas compressor product design and development under a mentor. Responsibilities include FEA/CFD simulations, performance analysis, research, design/process support tool development, manufacturing support, component testing, instrumentation, data processing, and cross-team collaboration to improve compressor products.

Entry-level internship supporting Quality & Process Improvement. Analyze operational and quality data, assist root cause and corrective actions, support process mapping and standard work, develop dashboards and presentations, and participate in cross-functional continuous improvement projects using Lean and Six Sigma principles.

Participate in the ITS internship program with rotations across software development, QA, customer support, system administration, cybersecurity, analytics, and infrastructure. Work on assigned projects, collaborate with cross-functional teams, build technical foundations, and receive mentorship and feedback with the possibility of transition to a full-time role.

Participate in Weaver's Spring 2028 tax internship preparing tax returns end-to-end, receive formal and on-the-job training, work on various return types, travel to client sites as needed, and collaborate with teams during peak tax season.

Support design, fabrication, assembly, and testing of autonomous surface vehicle mechanical hardware. Create and update SolidWorks parts, assemblies, drawings, and basic BOMs; assist with fixtures, tooling, sourcing, assembly, inspections, and testing. Maintain documentation and configuration of design files and collaborate with mechanical, electrical, and software engineers.

Part‑time on‑site internship supporting process improvement, data analytics, AI/automation initiatives, SOP documentation, and cross‑functional operational projects to improve efficiency and reporting.

Support Sierra Club San Diego’s climate and conservation campaigns through community outreach, volunteer engagement, policy and environmental research, event coordination, communications, and data tracking to advance local advocacy and chapter priorities.

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.

Support the sales team by conducting cold calls, generating leads, assisting with sales strategies, handling administrative tasks, maintaining customer databases/CRM, and collaborating to meet sales targets while gaining hands-on experience.

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.

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.

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.

Support building and redesigning responsive, mobile-friendly websites; create wireframes and sitemaps; develop front-end UIs and assist with back-end tasks; optimize for performance, scalability, and SEO; participate in brainstorming, debugging, testing, and follow clean coding and version-control best practices under developer mentorship.

Work on front-end and back-end web projects: create and redesign websites, build sitemaps and wireframes, collaborate with teams, and focus on UI/UX and performant back-end functionality.

Six-month engineering internship building production backend services and AI pipelines. Design SQL schemas (PostgreSQL), implement SaaS integrations (REST APIs, webhooks), work with embeddings, transformer models and vector databases, build end-to-end data processing pipelines, and contribute to code reviews and architecture discussions.

Work directly with founders to research AI SaaS markets, identify high-fit accounts and buyers, prepare personalized outbound, maintain CRM discipline, track replies/objections, run GTM experiments, and support founder-led sales to create real customer conversations.

Label and outline plants in agricultural images using an online tool, tag crop and weed types per guidelines, maintain high accuracy across many images. Remote, flexible internship (3 months) with a monthly stipend and completion certificate. No coding or prior labeling experience required; video tutorials provided.

Perform B2B market and contact research to identify prospective companies and decision-makers, achieve daily lead-generation targets, gather executive contact information using tools and strategies, and support email prospecting and outreach efforts.

Work across frontend and backend to design, build, and ship annotation and review features; implement ingestion, storage, user management, and annotation pipelines; integrate model inference into workflows; optimize performance for large images/videos; design APIs and collaborate with product, operations, and annotators.

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.

Intern will build Zepho's social media presence, create content, manage influencer relationships, and track performance metrics. This role offers potential for full-time conversion.

Support Bantam Communications' public affairs teams by conducting research, drafting and editing communications, coordinating with clients and partners, tracking tasks and timelines, and using AI tools to draft and polish materials while learning across campaign, advocacy, research, and communications work.

Design, implement, and evaluate applied research projects to improve alignment, safety, and evaluation of LLM-based guardrails. Work on experiments (e.g., synthetic data quality metrics, explanations for blocked content), deliver results with mentor guidance, and present findings to the team to shape product capabilities.