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Junior Python Developer Jobs in Petaluma, CA, US
180+ junior python developer jobs from 110+ companies hiring in Petaluma, CA, US.
1mo
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Senior Python Engineer
San Francisco or Canada
$126k-$248k/yr HybridFull Time
Proven Python software development experience; experience with AI/ML frameworks in Python; open source contributions preferred; strong communication and mentoring skills.
Python, AI/ML frameworks, Web development frameworks, Open source tooling
1mo
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Junior Software Developer
Burlingame, California, United States
$95k-$125k/yr OnsiteFull Time
Proficiency in C/C++, Bash, Python; knowledge of SPI, I2C, UART; experience with hardware interaction and embedded testing preferred.
C/C++, Bash, Python, SPI, I2C, UART
23h
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Junior Backend Engineer
San Francisco, California, United States
$120k-$145k/yr HybridFull Time
3+ YOE1-3 years backend experience, Python, API development, scalable data handling, AI/ML integration, security/compliance (KYC/KYB), clean maintainable code.
Python, REST APIs, Knowledge graphs, LLMs, RLHF, LoRA
1w
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Junior Security Operations Engineer
Dublin or Amsterdam or San Francisco or Denver
RemoteFull Time, Contract
2+ YOEJunior SecOps role focusing on vulnerability management, AI-assisted tooling, and incident response; includes bug bounty triage, SIEM/EDR/DLP usage, and scripting for automation.
SIEM, EDR, DLP, Python, Bash, LLM tooling, Bug bounty platforms
3w
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Junior Coastal Engineer
San Francisco or Oakland or Sacramento or Petaluma
$85k-$100k/yr HybridFull Time
0+ YOEBachelor’s in Civil/Environmental Engineering or related field; 0-3 years’ experience; EIT or ability to obtain within 1 year; coastal/restoration experience desirable; proficiency in design/modeling software preferred; strong communication; ability to work in hybrid office settings.
AutoCAD Civil 3D, ArcGIS, HEC RAS, HEC HMS, XBeach, SWAN, MATLAB, Python
1w
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Junior Engineer (Workforce Programs-Limited Term)
Oakland, California, United States
$10k-$12k/mo OnsiteTemporary
0+ YOEEntry-level engineer with knowledge of water systems, data analysis, and programming; familiarity with modeling and new technologies; handles field and office studies.
Python, R, MATLAB, SQL
4d
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Junior Research Scientist
San Francisco, California, United States
$150k-$230k/yr OnsiteFull Time
Ph.D. in Mathematics, Theoretical Physics, Computer Science, or related field; strong ML foundation; Python/R programming; in-person work 4-5 days/week.
Python, R, Machine Learning Libraries
6d
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Software Engineer
San Francisco, California, United States
$100k-$139k/yr OnsiteFull Time
Sofar Ocean: A startup focused on weather routing for the maritime transport sector.
Product-driven software engineer to design, develop, and maintain services in the Wayfinder Optimization Engine; Rust and Python; early in career.
Rust, Python, C, C++
2mo
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Backend Engineer (Early Career)
San Francisco, California, United States
HybridFull Time
2+ YOE2-3 years backend development; Python/Go/Java/C++ or similar; SQL & NoSQL; cloud services (AWS/GCP); AI/ML interest; strong collaboration; growth mindset.
Python, Go, Java, C++, SQL, NoSQL, AWS, GCP, API design
3w
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Software Engineer III
San Ramon, California, United States
$104k-$153k/yr RemoteFull Time
6+ YOE5+ years cloud, DevOps, and software engineering experience; hands-on with Python/Java/SQL, AWS/Azure, CI/CD, IaC, and platform reliability; able to mentor and lead junior engineers.
Python, Spark, Java, SQL, Shell Scripting, Jenkins, Git, AWS, Azure, Jira, ServiceNow, Autosys, Glue, Jupyter Notebook, Oracle, PostgreSQL, SQL Server, Linux, Windows
1mo
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Software Engineer
Oakland, California, United States
$100k-$130k/yr HybridFull Time
0+ YOEProficient in Python; experience with Rust, C++, or Go; ML concepts; multi-language projects.
Python, Rust, C++, Go, Machine Learning, Signal Processing, Time Series Data Processing
2mo
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Software Engineer I, Monetization ML
San Francisco or Seattle
$111k-$160k/yr OnsiteFull Time
1+ YOE1+ years in software development; production ML infra experience; Python/Java/Go; APIs and streaming data; data pipelines; Bachelor's in CS/Engineering or equivalent
Python, Java, Go, Flink, Kafka, Airflow, AWS, DynamoDB, Lambda, SQS, Step Functions
3w
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Junior Crowd Technical Director
San Francisco, California, United States
$68k-$87k/yr HybridFull Time
2+ YOE2+ years VFX experience or 3+ years professional VFX; strong Houdini, Linux; problem solving; teamwork; ability to meet deadlines.
Houdini, Linux, Maya, Python, VEX
2mo
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Software Engineer - Data Engineering
San Francisco or Los Angeles
$140k-$220k/yr HybridFull Time
1+ YOE1-2 years of software/data engineering; Python and SQL; building data pipelines; data modeling; real-time data handling.
Python, SQL, Kafka, Spark Streaming, Flink, Palantir Foundry, Azure, AWS, GCP, Docker, Kubernetes, NoSQL databases
1w
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Software Engineer, New Grad (AI)
San Francisco, California, United States
$126k-$146k/yr HybridFull Time
0+ YOEPursuing CS/engineering degree; full-time start; prior internship; proficiency in TypeScript, React, Python.
React, TypeScript, Python, Node.js, Postgres
1mo
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Product Engineer I
Fremont, California, United States
$85k-$92k/yr OnsiteFull Time
1+ YOEBS or MS in STEM; 1+ year troubleshooting complex systems; Bash/Python; Linux; strong communication; travel up to 20%.
Bash, Python, Linux, Jira
2mo
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New Grad Product Engineer
San Francisco, California, United States
OnsiteFull Time
0+ YOENew grad or recent CS graduate; proficient in TypeScript, Python, React; able to ship production code; experience with AI/ML or LLM APIs is a plus.
TypeScript, Python, React, LLM APIs, AI frameworks
1mo
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Intern, Software Engineer - Perception
San Francisco, California, United States
$45/hr HybridInternship
Pursuing a Master’s or PhD in CS or related field; strong Python and C++; detail-oriented, curious, good communicator, collaborative.
Python, C++, Git
1w
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Software Engineer - Product (New Grad)
San Francisco, California, United States
$130k-$150k/yr OnsiteFull Time
Experience with React, Next.js, Tailwind CSS, Python; shipped production code; strong frontend and backend understanding; examples of live projects.
React, Next.js, Tailwind CSS, Python
1mo
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Software Engineer - Solutions
San Francisco or Illinois or New York or West Virginia
$70k-$110k/yr HybridFull Time
0+ YOEBachelor's degree in a technical field; hands-on web or mobile development; proficiency in at least one language; knowledge of databases and web tech; HIPAA awareness preferred.
Java, Python, C++, JavaScript, TypeScript, Git
1mo
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Product Engineer Intern
San Francisco, California, United States
$30-$50/hr OnsiteInternship
2+ YOEInternship for a product engineer to ship consumer experiences with AI integration; experience shipping consumer products; strong TS/Python; frontend/backend; AI pipelines.
TypeScript, Python, React, Next.js, Node, NestJS, FastAPI, Redis, MongoDB, LangGraph, LangChain
4d
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Software Engineer — Summer Intern
Redwood City or San Francisco
HybridInternship
Pursuing BS/MS/PhD in CS; available for 12+ weeks; Python/JavaScript proficiency; experience on large projects; strong technical communication.
Python, JavaScript
4d
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Software Engineer, New Grad
San Mateo, California, United States
$110k-$135k/yr OnsiteFull Time
0+ YOEBachelor's or advanced degree in computer science; excellent programming skills; analytical problem solving; ability to work with diverse teams; knowledge of Unix, Python, Java, SQL, or JavaScript a plus; passion for education technology.
Linux, Apache, Java, Scala, Python, Oracle, Swift, JavaScript, React, D3, ES6, SQL
1mo
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Intern, Mission Optimization Engineer
San Francisco, California, United States
$37-$60/hr OnsiteFull Time
0+ YOEInternship in an engineering or computer science program; strong Python skills; data analysis mindset; proactive, team-oriented; able to work in SF office.
Python, Git, GitLab, Docker, Jenkins, Bash, Linux, CI/CD, Sentry, Datadog
2mo
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Software Engineer Intern
San Francisco or Los Angeles or New York City
$35-$45/hr HybridInternship
0+ YOEPursuing CS degree, 2+ years of college, Python, SQL, math and stats, AI/ML project experience, 10-week commitment, able to work independently.
Python, SQL, MySQL, PostgreSQL, AI/ML tools
6d
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Software Engineer Intern - Kernels
Burlingame, California, United States
OnsiteAll Commitments Available
0+ YOEPursuing CS/EE degree; strong C/C++ and Python; understanding of computer architecture; problem solving; clear communication.
C, C++, Python, CUDA, DSP, NEON, Triton
3w
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Software Developer in Test, Find My
Cupertino or San Francisco Bay Area
OnsiteFull Time
1+ YOE1+ years Quality Engineering; programming in Swift/SwiftUI, Java, Python, or JavaScript; API automation; debugging; experience with Apple devices; BS in Computer Science or equivalent
Swift, SwiftUI, Java, Python, JavaScript, XCTest, XCUI, API Automation
1mo
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Deep Learning Software Engineer, TensorRT Performance - New College Grad 2026
Santa Clara or Remote
$124k-$196k/yr OnsiteFull Time
2+ YOE2 years of software development; strong C/C++, Python; DL frameworks experience; performance optimization.
CUDA, TensorRT, PyTorch, TorchDynamo, TorchInductor, CuTeDSL, Cutlass, Triton, JAX, TensorFlow, vLLM, SGLang, Torch-TensorRT
1mo
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Software Engineer, Perception (Intern) - Summer 2026
South San Francisco, California, United States
$40-$60/hr HybridInternship
Pursuing or holding a Master’s degree or higher in Robotics, CS, EE, Mathematics, Physics; strong CS/CV/ML skills; proficient in C++ and Python; experience with PyTorch/TensorRT; Linux; ROS2; good communication.
Python, C++, PyTorch, TensorRT, Linux, ROS2
1mo
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Research Engineer, Electrical
San Francisco, California, United States
$150k-$165k/yr HybridFull Time
2+ YOEMS in Electrical Engineering with 2+ years of relevant industry experience; strong fundamentals in electromagnetics, signal processing, or circuits; hands-on hardware validation and data analysis; proficient in Python and MATLAB; strong technical communication.
Python, MATLAB, lab instrumentation, DAQ, Oscilloscope
1mo
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PhD Autonomy Engineer Intern - Deep Learning or Computer Vision
San Mateo, California, United States
$58k/yr HybridInternship
PhD candidate with strong math, theory, and software development; proficient in C++/Python; interest in computer vision, deep learning, motion planning; collaborative problem solver.
C++, Python, OpenCV, PyTorch, TensorFlow
1mo
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Decision Support Tools Engineer
Alameda, California, United States
$90k-$180k/yr OnsiteFull Time
1+ YOEBachelor’s degree in engineering, Computer Science, Biomedical Engineering, or related field; 1–3 years’ experience; Python; data visualization; Git; CSV/JSON; AI tooling; strong problem solving; good communication.
Python, pandas, NumPy, Matplotlib, Plotly, Streamlit, Git, GitHub, CSV, JSON, GitHub Copilot, Claude, ChatGPT, Azure, AWS
1mo
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Software Engineer Associate
Tiburon, California, United States
$75k-$83k/yr OnsiteFull Time
0+ YOEBS in Computer Science or relevant work experience; proficiency in C#, Java, Javascript, Golang, Python, and CSS; US work authorization without employer sponsorship.
1mo
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2026 Intern - Machine Learning Engineer
San Jose or San Francisco
$45-$55/hr HybridFull Time
Pursuing BS/MS/PhD in CS/CE or related field; strong ML, Python/Java/C; familiar with R/Matlab; able to work May–September; team player with good communication.
Python, Java, C, R, Matlab, scikit-learn
1mo
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Software Engineer Intern - Data Platform (Summer 2026)
San Francisco, California, United States
$29/hr OnsiteInternship
Pursuing a B.S. or M.S. in Computer Science; strong Python; databases; API design; willingness to apply even if not all criteria met.
Python, PostgreSQL, Time-series databases, REST, gRPC, Protocol Buffers, Kubernetes
2mo
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Software Engineer Intern (ML Ops / Compute Migration)
San Francisco, California, United States
$45-$60/hr OnsiteInternship
0+ YOEExperience with modern C++ and Python; cloud environments; ML/AI familiarity; strong communication; pursuing a degree in CS/Data Science/Math/Engineering.
C++, Python, AWS, GCP, Azure, GenAI, ML Ops
2w
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Intern, Software Development Engineer in Test
San Francisco, California, United States
OnsiteInternship, Full Time
Hands-on test strategy, test planning, design, and execution for functional, integration, and PSR testing; experience with robustness testing tools like JMeter; Python and/or Java; cloud test environments (GCP, AWS); agile team experience.
Python, Java, JMeter, Google Cloud Platform, Amazon Web Services
2w
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Software Engineer
New York City or San Francisco or United States
$140k-$200k/yr HybridFull Time
1+ YOE1 year software engineering experience; Bachelor's in CS; experience building scalable systems; able to work cross-functionally; legal to work in the U.S.
Python, React, Docker, Kubernetes, Google Cloud Platform
1mo
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Agent Dev Engineer (Full-Time/Intern)
San Francisco, California, United States
OnsiteFull Time, Internship
Proficient in Python; strong experience with LLM ecosystems, frameworks like LangChain/AutoGen; expert in prompt engineering; full-stack capability; problem solving; experience with RAG/vector databases; internship or GitHub AI projects valued.
Python, LangChain, LangGraph, AutoGen, FastAPI, Node.js, OpenAI API, Claude, Vector Databases, APIs
1mo
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Product Engineer
San Francisco, California, United States
$100k-$200k/yr RemoteFull Time
Strong product sense; experience with software engineering; familiarity with LLMs and agentic workflows; remote work ability.
TypeScript, NestJS, React, PostgreSQL, Redis, Python, Kafka, AWS, Kubernetes, FluxCD
HiringCafe market data
Junior Python Developer Jobs market signals in Petaluma, 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
180+
Hiring companies
110+
Fresh sample
39% new in 30d
Salary visibility
78% show pay
Companies appearing in this market
AppleAstranisHayden AINotionRobert HalfTatariAdobePlanet Labs
Work location mix in visible results
Onsite: 28Hybrid: 26Remote: 5