118 research engineer intern jobs at 28 companies in Berkeley, CA
🚀PromotedHiringCafe
Founding Machine Learning / AI Search Engineer
Cupertino, CA, US
$160k-$310k/yrOn-SiteFull Time
HiringCafe: Building a 100× better job search engine to take on Indeed and LinkedIn.
Build the ML and AI search behind HiringCafe — ranking, recommenders, retrieval, and LLM agents that surface jobs people would never find on their own.
PlusAI: AI-based virtual driver software for factory-built autonomous trucks.
Pursuing MS or PhD in Computer Science, Electrical Engineering, Robotics or related field; programming in Python and C++; experience in 3D computer vision; internship focused on reconstruction, auto labeling and mapping.
Alpha & Omega SemiconductorNASDAQ: AOSL: Designs and manufactures power semiconductor products for electronic systems.
Pursuing a degree in Business/HR/Engineering/Data Science; strong research/critical thinking; AI interest; clear business communication; comfortable with ambiguity.
Research Intern, Efficient ML Engineer (AI Platform)- 2026 Start (PhD)
San Jose, California, United States
OnsiteInternship
TikTok: Global short-form video hosting and social media platform.
PhD candidate in CS/engineering; proficient in C++ and Python; experience with diffusion models, model compression, efficient architectures, and generative ML; strong communication and teamwork skills.
Gridmatic: AI-powered platform for optimizing energy trading and battery storage.
Enrolled MS or PhD student in EE or Energy Systems; coursework in unit commitment/economic dispatch/OPF; familiarity with power flow and network modeling; Python programming; comfort with linear and MILP optimization.
NVIDIANASDAQ: NVDA: Designs GPU-accelerated computing and artificial intelligence hardware.
Pursuing an MS or PhD in Computer Science or Electrical Engineering; strong Python, deep learning for NLP knowledge; experience with PyTorch or JAX; ability to run and manage large experiments.
Research Engineer - LLM Training Infrastructure - Seed Infra
San Jose, California, United States
OnsiteFull Time
ByteDance: Developing AI-driven content platforms and mobile applications.
Experience with large-scale distributed LLM training, strong Python/C++ skills, ML systems and infrastructure knowledge, proficiency in parallelism strategies and training stack internals (PyTorch, CUDA, NCCL).
PhD in robotics/computer science/electrical engineering, research experience in motion or behavioral planning, publications in top conferences, hands-on C++ experience, strong analytical and communication skills.
Santa Clara or Japan or United Kingdom or China or United States
RemoteFull Time, Internship
AESC: Manufactures lithium-ion batteries for electric vehicles and energy storage.
Master's preferred (or Bachelor's with strong research); background in renewable energy, materials science, chemistry, electrical or systems engineering; understanding of energy storage architecture; AutoCAD and Microsoft Office proficiency; Python a plus; strong communication and analytical skills.
AutoCAD, Microsoft Word, Microsoft Excel, Microsoft PowerPoint, Python
Intern, Optical Packaging and Characterization Engineer
Milpitas, California, United States
OnsiteInternship
PsiQuantum: Builds fault-tolerant quantum computers using silicon photonics technology.
Pursuing or recently completed bachelor’s in Optics/Optical Engineering/Photonics/Physics; experience with optical microscopy, image processing or Python; strong attention to detail and collaborative lab work.
Periodic Labs: Builds autonomous laboratories for AI-driven scientific discovery.
Pursuing or recently completed a Bachelor’s, Master’s, or PhD in engineering or related field; hands-on cleanroom/nanofabrication experience; exposure to lithography, deposition, and etch; comfortable in shared facilities; strong documentation.
Workato: Enterprise platform for automating business workflows and integrating applications.
Pursuing MS/PhD in CS, ML, NLP or related; publications in top venues; strong Python and PyTorch; ability to work in SF office; collaborate across teams.
DataRobot: Provides an enterprise platform for building and governing AI.
Pursuing or recently completed BS/MS in CS/data science/engineering; proficiency in Python (pandas,numpy); foundational ML knowledge; strong communication and autonomy; passion for autonomous agents.
Materials Science Division Undergraduate Intern - Fall 2026
Livermore, California, United States
OnsiteInternship, Temporary
Lawrence Livermore National Laboratory: Develops science and technology for United States national security.
Continuing undergraduate student in chemistry/materials/computational fields; eligible for Lab access under NDAA Section 3112; basic engineering/science skills, teamwork, communication, and familiarity with Word, Excel, PowerPoint.
Microsoft Word, Microsoft Excel, Microsoft PowerPoint
SiemensXETRA: SIE: Manufactures industrial automation, infrastructure, and energy technology systems.
5+ YOEBachelor's degree in EE/IE/CE or equivalent, 5+ years PCBA production and system integration testing, test automation with Python/shell, Linux and networking knowledge, lab equipment familiarity, ability to lift 25 lbs, ~10% international travel.
Python, PERL, Shell, Linux, PCIe, Ethernet, TCP/IP, Power Supplies, Oscilloscopes, Signal Generators, DMMs, Logic Analyzers
Plato: Building foundational infrastructure to train specialized AI agents.
Experience building backend systems, data pipelines, product surfaces, and internal tools for AI/research workflows; strong product engineering judgment, emphasis on correctness, observability, and iteration speed.