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Junior Python Developer Jobs in Napa, CA, US

180+ junior python developer jobs from 110+ companies hiring in Napa, CA, US.

184 jobs- Napa • 50 miles
1mo
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Senior Python Engineer
San Francisco or Canada
$126k-$248k/yr HybridFull Time
MongoDB
MongoDBNASDAQ: MDB: Cloud-based document database platform for software application development.
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
Xona Space Systems
Xona Space Systems: Operates low Earth orbit satellites for high-precision navigation services.
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
19h
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Junior Backend Engineer
San Francisco, California, United States
$120k-$145k/yr HybridFull Time
Baselayer
Baselayer: AI-powered business identity and risk verification platform.
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
Telnyx
Telnyx: Provides global carrier-grade voice and messaging services via APIs.
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
Environmental Science Associates
Environmental Science Associates: Provides environmental consulting for infrastructure and restoration projects.
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
East Bay Municipal Utility District
East Bay Municipal Utility District: Provides regional water supply and wastewater treatment services.
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
EliseAI
EliseAI: AI platform automating housing and healthcare business operations.
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
Infinitus
Infinitus: Automates healthcare administrative and clinical phone calls using AI.
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
Robert Half
Robert HalfNYSE: RHI: Provides specialized staffing and global business consulting services.
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
Paradromics
Paradromics: Develops implantable brain-computer interfaces to restore communication for patients.
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
1w
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Software Engineer I
Sacramento, California, United States
$33-$42/hr RemoteFull Time
Vituity
Vituity: Providing multispecialty clinical care and healthcare management services.
Bachelor’s degree in information technology or related discipline; one year of software development experience preferred; familiarity with generative AI, Azure, C#, Java, Python; RESTful APIs; SQL; UI programming; strong teamwork and communication.
Microsoft Azure, C#, Java, Python, RESTful APIs, SQL, UI technologies, Git, CI/CD
2mo
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Software Engineer I, Monetization ML
San Francisco or Seattle
$111k-$160k/yr OnsiteFull Time
Twitch
TwitchNASDAQ: AMZN: Operates a global live streaming platform for interactive content.
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
1d
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Software Engineer II
Pleasanton, California, United States
$82k-$141k/yr OnsiteFull Time
Abbott
AbbottNYSE: ABT: Provides medical devices, diagnostics, and science-based nutritional products.
1+ YOEBachelor’s or master’s degree in computer science, data science, information systems, or related field; up to 1 year or more software development or data engineering experience; SQL knowledge; programming languages including Python, Java, C++, plus Git basics.
SQL, PostgreSQL, MySQL, SQL Server, Oracle, Git, GitHub, Python, Java, C++
3w
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Junior Crowd Technical Director
San Francisco, California, United States
$68k-$87k/yr HybridFull Time
The Walt Disney Company
The Walt Disney CompanyNYSE: DIS: Produces media content and operates global theme parks.
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
CHAOS Industries
CHAOS Industries: Building next-generation sensing and detection systems for modern defense.
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
Notion
Notion: Provides a unified workspace for notes, documents, and project management.
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
Ultima Genomics
Ultima Genomics: Develops high-throughput genomic sequencing platforms for biological research.
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
Titan
Titan: Modernizes IT services through a proprietary augmented AI platform.
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
2mo
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Software Engineer I
Pleasanton, California, United States
$74k-$116k/yr OnsiteFull Time
Abbott
AbbottNYSE: ABT: Manufactures and sells medical devices, diagnostics, and nutritional products.
1+ YOEBachelor’s or master’s in computer science or related field; up to 1 year experience; SQL queries; Python/Java/C++ programming; version control.
SQL, Python, Java, C++, Git
1mo
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Intern, Software Engineer - Perception
San Francisco, California, United States
$45/hr HybridInternship
Hayden AI
Hayden AI: AI-powered mobile perception systems for automated traffic enforcement.
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
Julius
Julius: Conversational AI for automated data analysis and visualization.
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
Primefocus Health
Primefocus Health: Provides a platform for customized remote patient management solutions.
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
Ditto
Ditto: AI-powered dating platform planning real-world dates for college students
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
3d
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Software Engineer — Summer Intern
Redwood City or San Francisco
HybridInternship
Snorkel AI
Snorkel AI: Software platform for programmatic AI data development and labeling.
Pursuing BS/MS/PhD in CS; available for 12+ weeks; Python/JavaScript proficiency; experience on large projects; strong technical communication.
Python, JavaScript
1mo
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Intern, Mission Optimization Engineer
San Francisco, California, United States
$37-$60/hr OnsiteFull Time
Planet Labs
Planet LabsNYSE: PL: Operates imaging satellites providing daily global Earth observation data.
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
Tatari
Tatari: Provides a platform to buy and measure TV advertisements.
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
Quadric
Quadric: Designing licensable processor IP for on-device AI inference.
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
Apple
AppleNASDAQ: AAPL: Designs and sells consumer electronics, software, and online services.
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
NVIDIA
NVIDIANASDAQ: NVDA: Designs GPU-accelerated computing and artificial intelligence hardware.
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
AeroVect
AeroVect: Developing autonomous driving systems for airport ground logistics vehicles.
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
Gridware
Gridware: Real-time sensor platforms for power grid monitoring and safety.
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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Software Engineer Associate
Tiburon, California, United States
$75k-$83k/yr OnsiteFull Time
Digital Foundry
Digital Foundry: Designs and builds custom digital products and enterprise software.
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
Adobe
AdobeNASDAQ: ADBE: Provides software for digital media creation and marketing analytics
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
Astranis
Astranis: Builds and operates small geostationary communications satellites.
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
HeartFlow
HeartFlowNASDAQ: HTFL: Provides AI-driven software for non-invasive coronary artery disease diagnosis.
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
LiveRamp
LiveRampNew York Stock Exchange: RAMP: Provides a platform for secure data collaboration and identity.
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
Valon
Valon: AI-powered mortgage servicing and financial software platform.
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
Flowith
Flowith: AI productivity platform for deep work and automation
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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Software Engineer
San Francisco, California, United States
$140k-$170k/yr OnsiteFull Time
CaseMark
CaseMark: AI platform for legal document summarization and workflow automation
Strong Next.js and TypeScript skills; backend experience with APIs and databases; experience integrating AI tools; open-source mindset; ability to read unfamiliar code and ship features.
Next.js, TypeScript, React, Python, Rust, Go, PostgreSQL, AWS, Vercel, OpenAI, Anthropic, OpenRouter

HiringCafe market data

Junior Python Developer Jobs market signals in Napa, 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
41% new in 30d
Salary visibility
79% show pay

Companies appearing in this market

AbbottAppleAstranisHayden AINotionRobert HalfTatariAdobe

Work location mix in visible results

Onsite: 32Hybrid: 24Remote: 5