16 frontend software intern jobs at 11 companies in Berkeley, CA
🚀PromotedHiringCafe
Founding Full-stack / Product Engineer
Cupertino, CA, US
$130k-$300k/yrOn-SiteFull Time
HiringCafe: Building a 100× better job search engine to take on Indeed and LinkedIn.
Help us build a 100× better job search engine. We need a full-stack engineer with great taste, sharp fundamentals, and a track record of shipping polished product on React/Next.js plus a real backend (Firebase, Elasticsearch, Redis, Stripe).
Dexmate: Building AI-powered mobile humanoid robots for industrial automation.
Pursuing a degree in CS/SE or related field; strong HTML/CSS/JavaScript/TypeScript; experience with React or Vue; REST APIs; collaborative tools; AI-assisted development tools; interest in AI agents and real-time data visualization; basic CI/CD concepts; self-learning; async and sync collaboration.
Frontend Software Engineer Intern (Ads Measurement Signal and Privacy) - 2026 Summer (BS/MS)
San Jose, California, United States
OnsiteInternship
TikTok: Global short-form video hosting and social media platform.
Pursuing BS/MS in CS or related; strong data structures and algorithms; proficient in at least one of Go, Javascript, Java, C++; strong communication and teamwork; available for a 12-week summer 2026 internship.
San Francisco or New York City or Portland or Canada or United States
$201k-$251k/yrHybridFull Time
Mercury: Banking services and financial software designed for startup companies.
6+ YOE6+ years frontend software experience with deep React and TypeScript knowledge; experience leading cross-team engineering projects and maintaining internal libraries; strong communication and observability skills.
TikTok: Global short-form video hosting and social media platform.
Pursuing undergraduate or master’s in CS/CE/software development, proficiency in Typescript, ES5/6, CSS, React, Go, database knowledge, and ability to work 12-week Fall 2026 internship.
GenBio AI: Developing AI foundation models to simulate and program biology.
0+ YOECurrently enrolled in a full-time Master’s or Ph.D program; strong CS fundamentals; frontend React/TypeScript; backend with FastAPI; self-starter in fast-paced startup.
Phonely: AI-powered voice platform for automated customer phone interactions.
Pursuing or recently completed degree in Computer Science or related field; experience with JavaScript/TypeScript and modern frontend frameworks; familiarity with Next.js; strong problem-solving and debugging skills; ability to work with customers and teammates; eager to learn quickly.
Cohere: Provides enterprise-grade large language models and AI software platforms.
Enrolled in a post-secondary program; available for a full-time 3-6 month internship; remote; roles across frontend, backend, full-stack, and infrastructure.
Rippling: Unified platform managing workforce HR, IT, and finance operations
Currently enrolled in a Bachelor’s or Master’s in CS or related field; prior internship/Co-op experience; backend experience with Python and frontend with JavaScript and HTML/CSS; strong communication and problem-solving skills.
Python, JavaScript, HTML/CSS, Slack, Microsoft 365
Rippling: Unified platform managing workforce HR, IT, and finance operations
Currently enrolled in a Bachelor's or Master's in CS or related field, previous software engineering internship/Co-op experience (backend with Python; frontend with JavaScript, HTML/CSS), strong communication and problem-solving skills, graduation after internship.
Python, JavaScript, HTML, CSS, Slack, Microsoft 365
Rippling: Unified platform managing workforce HR, IT, and finance operations
Currently enrolled in a Bachelor's or Master's in CS or related; previous internship/co-op experience; backend experience with Python and frontend experience with JavaScript and HTML/CSS; strong communication skills.
Python, JavaScript, HTML/CSS, Slack, Microsoft 365
OpenAI: Develops artificial intelligence models and generative AI software services.
Experienced in building production frontend and backend systems, designing interfaces for operational/internal tools, strong backend fundamentals (APIs, data modeling, integrations), security-conscious design, and cross-functional collaboration.
IAM, ITSM, RBAC, Zero Trust, APIs, SOC 2, ISO 27001, FedRAMP, NIST
Full Stack Software Engineer - Camera & Photos Tools & AI Team
Cupertino, California, United States
OnsiteFull Time
AppleNASDAQ: AAPL: Designs and sells consumer electronics, software, and online services.
Build internal imaging tools and end-to-end software using native Swift, modern web frontends, and Python backends; integrate AI/LLM models; collaborate with engineering and science teams to deliver reliable tools.
TikTok: Global short-form video hosting and social media platform.
Currently pursuing BS/MS in Computer Science or related field; strong programming and software engineering fundamentals; hands-on experience with AI systems (IR, LLM apps, agents, RAG); familiarity with backend/frontend development; strong problem-solving and communication.
CloudflareNYSE: NET: Provides security and performance services for internet properties.
5+ YOE5+ years full stack engineering experience; strong backend (Python, Go, Node.js) and frontend (React, TypeScript); SQL/NoSQL, API design, cloud-native architectures (Cloudflare Workers, AWS/GCP); familiarity with data pipelines, LLMs/ML, and audit/risk concepts.