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Junior Python Developer Jobs in Cupertino, CA, US
550+ junior python developer jobs from 250+ companies hiring in Cupertino, CA, US.
2mo
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Infrastructure Intern
San Jose, California, United States
OnsiteInternship
Pursuing a Bachelor’s/Master’s/PhD in CS/Engineering; proficient in C/C++ or Rust; Python; strong data structures/algorithms; low-level software/hardware co-design; strong communication.
C/C++, Rust, Python, Databases, CI/CD, Linux, Kernel concepts
3w
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AI/ML Intern
Arizona or California or Colorado or North Carolina or San Francisco or Utah
$40-$50/hr RemoteInternship
Pursuing BS, MS, or PhD in CS/Math/Stats; basic ML concepts; familiarity with generative AI; interest in LLMs; strong Python.
Python, FastAPI, Flask, Django, TensorFlow, PyTorch
1w
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Software Engineering Intern
Oakland, California, United States
OnsiteTemporary
Pursuing CS or related field; strong Python/JavaScript/TypeScript; interest in practical AI tools; ability to own projects; good communication.
Python, JavaScript, TypeScript
6d
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Agentic AI Engineering Intern - Cybersecurity
Foster City, California, United States
$20-$25/hr OnsiteFull Time, Internship
Currently pursuing BS or MS in CS, AI/ML, Data Science or related field; Python proficiency; basic understanding of LLMs and generative AI; ability to work with large codebases; commitment to learning.
Python, Cloud platforms, Containerization, LLM orchestration frameworks, Agent libraries, Vector search, Embeddings, Retrieval augmented generation, Web frameworks, Backend development, Frontend development
2d
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Embedded SDET CO-Op
San Francisco, California, United States
$35/hr OnsiteFull Time
0+ YOEPursuing a Computer Science/Computer Engineering/Electrical Engineering degree or equivalent; proficient in Python; familiar with OOP; git; test automation; strong debugging and collaboration skills; 6-month duration; SF location.
Python, Git, Test Automation
2mo
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Robotics Software Intern
San Francisco, California, United States
$5k-$10k/mo OnsiteInternship
0+ YOEPursuing a degree in Robotics, Computer Science, or related field; strong Python, linear algebra, data science; startup-friendly; good communication; collaborative.
Python, ROS, Git, AWS
2w
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Intern, ADAS/AD Software Engineering - AI Deployment (San Jose, CA, US, 95134)
San Jose, California, United States
$38-$42/hr OnsiteInternship
0+ YOEInternship in ADAS/AI deployment; strong C++/Python; Linux; NVIDIA platforms; ROS/ROS2 a plus; CUDA/TensorRT; knowledge of VLMs and HuggingFace Transformers.
C++, Python, Linux, CUDA, TensorRT, Hugging Face Transformers, ONNX, ROS, ROS2, TensorRT-LLM, NVIDIA deployment tools
2mo
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2026 Software Engineering Internship
Sunnyvale, California, United States
$7k-$11k/mo HybridFull Time, Internship
0+ YOEPursuing CS/CE; strong fundamentals; programming in Go, TypeScript, Python, or C/C++; prototyping mindset; ability to work in Sunnyvale 3 days/week.
Golang, TypeScript, Python, C/C++, React, Prometheus, Kafka, Redis, GCP
1mo
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Intern, Software Engineering
Palo Alto or Remote
HybridInternship
0+ YOEPursuing BS/MS/PhD in CS/Engineering/Physics/Math; strong Python skills; distributed compute and cloud storage knowledge; familiarity with quantum applications.
Python, Databricks, AWS, JAX, NumPy, SciPy, Git, APIs
2w
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AI Associate, Internal Products
Palo Alto, California, United States
$85k-$110k/yr HybridFull Time
0+ YOEBachelor's in CS/Data/Engineering/related; 0-2 years in generative AI; proven shipped projects; strong product sense; proficient in Python/JavaScript; able to work onsite in Palo Alto 3 days/week.
Python, JavaScript, APIs, No-code/Low-code Tools, Cursor, Claude
2mo
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internship [software] - summer 2026
San Francisco, California, United States
OnsiteInternship
Pursuing CS/Math/Engineering/AI-ML; strong Python; JS/TypeScript; systems languages (C/C++, Rust); experience with VLMs, backend/data systems.
Python, JavaScript/TypeScript, C, C++, Rust
4w
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Intern, AI Engineering
South San Francisco, California, United States
OnsiteFull Time, Internship
Pursuing Master’s or Ph.D. in CS/AI/ML; strong Python and NLP skills; experienced with LLMs, prompt engineering, RAG; able to collaborate with experts; good communication and documentation.
Python, LLM APIs, Hugging Face, NLP, Git, XML, JSON
2mo
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University 2026 Talent Acquisition AI Product Engineering Intern
Mountain View or McLean or New York City or Tampa
OnsiteFull Time, Internship
Pursuing a Bachelor's or Master's in CS/Engineering/AI; strong Python and API skills; experience with automation/AI apps; familiarity with LLM prompting or orchestration; strong systems thinking.
Python, APIs, LLMs, AI frameworks, Workflow automation tools, Webhooks
2mo
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Software Engineering Intern (Summer 2026)
Palo Alto, California, United States
HybridInternship
Pursuing a degree in Computer Science/Engineering/Math; strong Go, Python, C/C++, or similar; Kubernetes/Docker; cloud platforms; Git; Linux; strong CS fundamentals.
Go, Python, C/C++, Kubernetes, Docker, Git, Linux
3mo
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Analog Design Automation Intern
Toronto or Boston or Austin or Santa Clara
$35-$70/hr HybridInternship
Co-op or PEY student in Electrical Engineering with analog IC design exposure; Python proficiency; interest in ML concepts; open source tools; strong analytical and communication skills.
Python
1w
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Forward Deployed Engineering Intern, AI-Native (Hybrid)
Houston or San Francisco
$30-$35/hr HybridFull Time, Internship
Currently enrolled in a college/university; internship available summer 2026; strong interest in AI-first engineering; experience with Python/JavaScript/TypeScript or React; able to collaborate with non-technical partners.
Python, JavaScript, TypeScript, React
2mo
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Intern, Software Engineering
Fremont, California, United States
$34-$41/hr OnsiteFull Time
Pursuing a Bachelor's or master's degree in CS, electrical engineering, computer engineering, or embedded systems; Python for test automation; hardware interfacing knowledge; Git; C/C++/C# familiarity; strong documentation and communication.
Python, Git, C, C++, C#
3w
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Intern, Computational Oncology
Redwood City, California, United States
$67k-$81k/yr OnsiteMultiple Commitments Available
0+ YOEPursuing BS or MS in computational biology or related field; proficiency in R and Python.
R, Python, Seurat, Scanpy, scVI, RNA-seq
1d
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Innovation & Development Summer Intern
South San Francisco, California, United States
OnsiteMultiple Commitments Available
Pursuing bachelor’s or master’s in bioengineering, mechanical engineering, or related field; hands-on wet-lab experience; Python for data analysis; familiarity with AI tools; strong communication; onsite SF internship.
Python, Lab Equipment, AI tools
2mo
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Senior Quantitative Researcher - Market Microstructure
San Francisco, California, United States
$165k-$200k/yr RemoteFull Time
5+ YOEMaster's degree strongly preferred; PhD a plus. Expert-level Python and strong SQL skills. Monte Carlo methods and probabilistic modeling. 5+ years in quantitative research or systematic trading. Experience processing high-frequency tick data and real-time feeds. AWS or cloud infra experience. Mentoring junior researchers.
Python, SQL, AWS, Monte Carlo methods, Stochastic calculus, Probabilistic modeling, Time-series databases, Backtesting frameworks, Pandas, NumPy
3mo
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Policy and Data Analysis Intern (San Francisco)
San Francisco or Washington
$24-$26/hr OnsiteInternship
0+ YOEPursuing or completed degree in engineering, economics, policy, transportation, environment, or energy; strong data analysis with Python or R; good communication in English.
Python, R, Excel, Pandas, SciPy, NumPy, Matplotlib, tidyverse
1mo
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Geospatial Analyst Resident
Palo Alto or United States
$86k-$130k/yr RemoteFull Time
0+ YOEGraduate student in Geophysics, GIS, Aerospace Engineering; 6-month residency; Python proficiency; experience with geospatial data and navigation systems preferred.
Python, Git, GNSS, GIS, Geostatistics
2mo
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Research Assistant (2 Year Fixed Term) (Multiple positions) in School of Medicine, Stanford, California, United States
Stanford or United States
$34-$40/hr OnsiteFull Time
Bachelor’s degree in neuroscience or engineering; experience with MATLAB/Python/R; ability to work with human subjects; strong organizational and data-analysis skills.
MATLAB, Python, R
2w
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AI Intern
Austin or San Jose
OnsiteInternship
Currently enrolled in BS or MS in CS/EE; knowledge of market analysis; familiar with major LLMs; Python; strong communication; ability to work independently.
Python, LLMs, AI tools
3w
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Anthropic Fellows Program — Reinforcement Learning
London or Berkeley or San Francisco or London or Ontario or British Columbia or Remote-Friendly US (Travel Required)
$4k/wk HybridFull Time
Fluent in Python; available to work full-time; strong software engineering; interest in empirical AI research.
Python, Distributed Systems, Machine Learning, Research Tools
1mo
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Research Intern — Applied Reinforcement Learning
Palo Alto or Redmond or Remote
$35-$45/hr RemoteMultiple Commitments Available
0+ YOEPhD candidate in CS/ML with strong Python/PyTorch skills; RL/agentic AI experience; RLHF/DPO/PPO knowledge; strong experimentation and reporting.
Python, PyTorch, Gymnasium, RLlib, Stable Baselines, FastAPI, gRPC, ONNX, TensorRT, Weights & Biases
1w
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Associate AI Security Resident
Washington or San Francisco or Santa Monica or Pittsburgh or Boston
$90k-$177k/yr HybridFull Time
1+ YOETechnical security/engineering background; leadership experience; programming in Python/Java/C/C++; threat modeling; strong communication; policy analysis; collaboration; MS Office.
Python, Java, C/C++, Threat modeling, MS Office
3w
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Intern, AI Engineering
San Francisco, California, United States
OnsiteInternship
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.
Python, PyTorch, CUDA
3w
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R&D Solar Durability Technician
San Jose, California, United States
OnsiteFull Time
Experience with electronics in testing environments; maintenance/troubleshooting of processing tools; hands-on lab with safety in wet chemistry and hazardous materials; Python programming; solar industry experience is a plus.
Python
3w
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Research Technician II- Meyer Lab
Berkeley, California, United States
$24-$39/hr OnsiteFull Time
1+ YOEBachelor’s in biology or related field; 1-2 years wet lab; molecular biology, genetics; C. elegans experience preferred; strong communication; Python/R helpful.
Molecular biology, Genetics, Genomics, High-resolution microscopy, Computational analysis, Python, R
6d
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Technoeconomic & Supply Chain Analysis Intern
Oakland, California, United States
$20/hr OnsiteTemporary
Background in engineering, data science; strong analytical skills; Excel and/or Python; interest in climate tech; able to work in ambiguity.
Excel, Python, GIS
2mo
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Summer Research Intern
Palo Alto, California, United States
$25-$60/hr OnsiteInternship
Pursuing CS/AI-related degree; strong Python and PyTorch; ML or multimodal systems experience; English communication skills.
Python, PyTorch
2mo
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Research Intern – Video World Models
Palo Alto, California, United States
$80k-$125k/yr OnsiteFull Time, Internship
Pursuing PhD or Master’s with strong research; proficient in Python and PyTorch/JAX; knowledge of generative models; publications in top venues.
Python, PyTorch, JAX, Deep Learning, Diffusion, Transformers
1mo
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AI Intern
Fremont or Pittsburgh or Salem
$75/hr OnsiteInternship
0+ YOEPursuing a PhD in CS/ML/Robotics; strong Python and ML frameworks; ability to work independently; experience with robot hardware preferred.
Python, PyTorch, JAX
1d
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NERA Researcher – AT/Healthcare (Immediate Hire)
San Francisco or Chicago or New York City
$90k-$102k/yr HybridFull Time
2+ YOE2-3 years of professional experience; BA/BS in economics, statistics, mathematics or related field; strong programming skills (Python, R, SAS, Stata); excellent written and oral communication.
Python, R, SAS, Stata
1w
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Summer 2026 Intern - AI Research
Palo Alto, California, United States
$49-$68/hr HybridMultiple Commitments Available
Pursuing PhD or MS in ML/NLP/CV/RL; strong ML, DL, and programming skills; experience with PyTorch/TensorFlow; Python proficiency.
PyTorch, TensorFlow, Python, Java, C/C++
1w
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AI Research - Undergrad Intern
San Ramon, California, United States
$34/hr OnsiteInternship
Pursuing an undergraduate or master’s degree; strong Python skills; interest in applied AI research; comfort with ambiguous problems; knowledge of finance is a plus.
Python, Machine Learning, Data Analysis, NLP, Multimodal Systems
7h
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Theoretical Atomic, Molecular and Optical Sciences (AMOS) Postdoctoral Fellow
Berkeley, California, United States
$6k-$7k/mo OnsiteFull Time
0+ YOEPhD in Physics or Chemistry with AMO focus; strong collision theory; Fortran and Python (C++); numerical methods; good English communication and writing.
Fortran, Python, C++, MPI, OpenMP, Massively Parallel Computing
2mo
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Research Intern (Santa Clara, California, US)
Santa Clara, California, United States
$35-$50/hr HybridInternship
Pursuing Masters or PhD in CS, Math, Physics; strong quantum computing/A I & ML research; published papers; coding in C++, Java, Python; knowledge of quantum algorithms and error-correction preferred.
Python, C++, Java, Machine Learning
2mo
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Berry Breeding Intern
Watsonville, California, United States
$19-$40/hr OnsiteInternship
Driscoll's: Global leader in fresh berries and breeding.
Pursuing Bachelor’s or Master’s in Horticulture/Plant Breeding/Plant Science/Agronomy; image data prep, labeling, Python/R; driven for data analytics.
Python, R, image processing
HiringCafe market data
Junior Python Developer Jobs market signals in Cupertino, CA, US
These signals come from live HiringCafe job inventory, not a static article. Use them to compare the market, then open listings above to apply directly.
Open jobs
550+
Hiring companies
250+
Fresh sample
53% new in 30d
Salary visibility
73% show pay
Companies appearing in this market
AnthropicLawrence Berkeley National LaboratoryStanford UniversityEtchedFujitsuPsiQuantumAdvantestCentific
Work location mix in visible results
Onsite: 38Hybrid: 17Remote: 5