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800 python software jobs at 269 companies in Fontana, CA

1mo
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Principal Software Engineer (Python)
Irvine or Oklahoma City or Sunrise or Oxford or Dallas or Austin
$155k-$180k/yr HybridFull Time
Cotality
Cotality: Provider of property intelligence, data, and analytics solutions.
10+ YOE10+ years professional software engineering experience; expert Python/FastAPI; semantic, graph, and RAG/Vector retrieval experience; cloud (GCP/AWS/Azure); leadership, TDD, and AI/LLM/SLM familiarity.
Git, Unix, Python, FastAPI, FastMCP, ADK, LLM, SLM, GraphRAG, Vector Databases, RAGAS, DeepEval, GCP, AWS, Azure
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1mo
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Principal Software Engineer (Python)
Irvine or Oklahoma City or Sunrise or Oxford or Dallas or Austin
$155k-$180k/yr HybridFull Time
Cotality
Cotality: Provides property data, analytics, and workflow intelligence solutions.
10+ YOEMaster's or Bachelor's in CS/AI (required), 10+ years software engineering, expert Python/FastAPI, semantic/graph and RAG experience, cloud (GCP/AWS/Azure), Git/Unix, ADK, vector DBs, strong communication and leadership.
Git, Unix, Python, FastAPI, FastMCP, ADK, Vector Databases, GraphRAG, RAGAS, DeepEval, HyDE, GCP, AWS, Azure
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1mo
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Senior Product Software Engineer (Python)
San Francisco or Chicago or Los Angeles
$160k-$200k/yr HybridFull Time
Tyba
Tyba: AI software for modeling and operating renewable energy projects.
5+ YOE5+ years full-stack engineering experience; strong Python and React; production GraphQL experience; willingness to learn ClojureScript; familiarity with AI-assisted coding tools; strong cross-functional communication.
Python, React, GraphQL, Strawberry, ClojureScript, Cursor, Copilot, Claude Code, Warp Agent Mode, Recharts, ECharts, dbt, Snowflake, Redshift, PyTorch, AWS, PostgreSQL, Fulcro, Tailwind CSS, Clojure, Kotlin
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1mo
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Senior Software Engineer, Data Systems (Python)
Canada or United States or San Francisco or Los Angeles
$170k-$200k/yr RemoteFull Time
Northbeam
Northbeam: Marketing intelligence and attribution platform for eCommerce brands.
5+ YOE5+ years in data/software/integration engineering; strong Python, ETL, API/REST/GraphQL/Webhooks, auth flows; SQL and BigQuery; Airflow; Docker/Kubernetes; strong problem solving and observability skills.
Python, ETL, APIs, REST, GraphQL, Webhooks, OAuth 2.0, API keys, SQL, BigQuery, Airflow, Docker, Kubernetes
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1mo
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Python Test Automation Engineer
Los Angeles, California, United States
$140k-$150k/yr OnsiteFull Time
EPAM Systems
EPAM SystemsNYSE: EPAM: Provides global digital platform engineering and software development services.
Bachelor's in a relevant engineering or CS field; proven experience building Python-based test automation frameworks, robotic automation fixtures integration, Git/GitHub/GitLab, UNIX, and Jenkins; sensor validation experience; Master's degree preferred.
Python, UNIX, Jenkins, Git, GitHub, GitLab, CI/CD, Anthropic Claude, Claude Code, LinkedIn Learning
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3mo
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Software Engineer
Los Angeles, California, United States
OnsiteFull Time
ALKEME Insurance
ALKEME Insurance: Insurance brokerage and risk management services provider.
Design, develop, test, and deploy scalable software; proficiency in Java, Python, C#, or JavaScript; strong problem-solving, communication, and teamwork skills; bachelor’s degree or equivalent experience.
Java, Python, C#, JavaScript
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1w
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Software Engineer
Colorado Springs or Irvine or Longmont or Fremont or Rochester or San Jose
$111k-$148k/yr OnsiteFull Time
Western Digital
Western DigitalNASDAQ: WDC: Design and manufacture data storage devices and systems.
0+ YOEPursuing or recent Bachelor's/Master's in a technical field; experience with C/C++, Python, Java, Go, SQL, or JavaScript through coursework or internships; familiarity with software fundamentals, debugging, and development tools.
C, C++, Python, Java, Go (Golang), SQL, JavaScript, Microsoft Office, Git, Linux, IDEs
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1mo
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Sr. Software Engineer, Enterprise Software
Atlanta or Palo Alto or Irvine
$123k-$184k/yr OnsiteFull Time
Rivian
RivianNASDAQ: RIVN: Designs and manufactures electric vehicles and charging networks.
4+ YOEBachelor’s in CS/Engineering or equivalent, 4+ years software engineering experience, proficiency in Python/Go/TypeScript, experience with React/Angular/Next.js, Postgres/MYSQL/NoSQL, AWS/Azure/GCP, Docker/Kubernetes, and observability tools.
Python, Go, TypeScript, React, Angular, Next.js, Postgres, MYSQL, NoSQL, AWS, Azure, GCP, Docker, Kubernetes, Copilot, Cursor, Claude Code, Grafana, LGTM, DataDog, Splunk
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3w
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Software Engineer I
Los Angeles, California, United States
$91k-$111k/yr HybridFull Time
Los Angeles Capital Management
Los Angeles Capital Management: Quantitative equity management for global institutional investors.
1+ YOEBachelor's in a quantitative field, 1+ year production software experience, strong Python and SQL skills, familiarity with testing and Git, and effective communication.
Python, FastAPI, Pydantic, GitHub Actions, Snowflake, Prefect, Git, SQL, Azure, Docker, Dagster, Airflow
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2mo
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Software Engineer (Range Systems)
Corona, California, United States
$115k-$150k/yr HybridFull Time
Saalex
Saalex: Provides engineering, IT, and mission support for defense agencies.
7+ YOE7+ years in systems/software engineering; experience with hardware/software integration; proficiency in C++, Java, Python, or C#; DoD or defense program exposure is a plus.
C++, Java, Python, C#, TCP/IP
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3mo
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Software Engineer, Test Infrastructure
Irvine, California, United States
$135k-$170k/yr HybridFull Time
Field AI
Field AI: Develops autonomous software brains for robots in unstructured environments.
3+ YOE3+ years in software engineering or test infrastructure; Python; testing frameworks; Linux; debugging; CI/CD; collaboration.
Python, Linux, Docker, CI/CD
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1mo
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Senior Software Engineer
Los Angeles or Vancouver
$193k-$297k/yr HybridFull Time
Electronic Arts
Electronic ArtsNASDAQ: EA: Develops and publishes video games and interactive entertainment software.
5+ YOE5+ years software development experience, strong C/C++ and Python skills, experience with large shared codebases, profiling/optimization experience, bachelor's in CS/Engineering or equivalent.
C/C++, Python
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5h
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Senior Software Engineer
United States or Rochester or Irvine or Frisco
$145k-$165k/yr HybridFull Time
Megazone Cloud
Megazone Cloud: Provides managed cloud services and digital transformation consulting.
5+ YOE5+ years cloud-native software/platform engineering experience with AWS serverless stack, strong Python or TypeScript/Node.js skills, infrastructure-as-code experience, and bachelor's degree or equivalent.
Lambda, Step Functions, EventBridge, ECS Fargate, API Gateway, DynamoDB, S3, Amazon Bedrock, Terraform, CloudFormation, CDK, Pulumi, GitHub Actions, GitLab CI, Jenkins, AWS CodePipeline, Python, TypeScript/Node.js, JIRA, Git, SAS, R
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3w
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Sr. Software Engineer
Monterey Park, California, United States
$180k-$210k/yr HybridFull Time
Astrana Health
Astrana HealthNASDAQ: ASTH: Operates technology-powered platforms to coordinate and deliver medical care.
8+ YOE8+ years software development experience, strong Python and React/JavaScript skills, SQL proficiency, API/backend experience, leadership and mentoring ability; Bachelor’s in CS or equivalent experience.
Python, React, Javascript, SQL, Git, Docker, Kubernetes, CI/CD, Redux
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3mo
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Software Development Engineer
Edwards, California, United States
$22-$25/hr OnsiteTemporary
Science and Technology Corporation
Science and Technology Corporation: Provides scientific, engineering, and technical services to government agencies.
0+ YOEBachelor's degree in CS/Software Engineering/Aerospace; 0-2 years software development; languages include C, C++, Python, MATLAB/Simulink; US citizenship; ability to obtain security clearance.
C, C++, Python, MATLAB/Simulink
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3w
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Senior Software Engineer
San Francisco or New York City or Los Angeles or Seattle or United Kingdom or Ireland or Poland or Germany or Australia
$207k-$230k/yr HybridFull Time
Whatnot
Whatnot: Social marketplace for buying and selling via live streams
5+ YOE5+ years software engineering experience building and operating scalable backend or full‑stack distributed systems; strong system design, production ownership, and mentoring; experience with Python, Elixir, or JavaScript preferred.
Python, Elixir, JavaScript
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1mo
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Software Engineer, Diagnostics
Garden Grove, California, United States
$140k-$180k/yr OnsiteFull Time
Harbinger
Harbinger: Produces electric chassis platforms for medium-duty commercial transport vehicles.
Automotive software engineering with UDS/CAN/ODX, strong Python and C++ skills, diagnostics and unit testing experience, ECU/vehicle hardware validation, and familiarity with ISO 26262; Android development preferred.
UDS, CAN, ODX, Python, C++, Ethernet, LIN, CANdela Studio, Android, ISO 26262
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2mo
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Principal Software Engineer
Huntington Beach or San Francisco
$220k-$265k/yr OnsiteFull Time
Mach Industries
Mach Industries: Designs and manufactures autonomous unmanned aerial vehicles for defense.
10+ YOE10+ years leading large-scale software projects; expert in C++, Rust, Python or C; real-time/embedded systems experience.
C++, Rust, Python, C, RTOS, embedded systems
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Sr Software Engineer
Glendale or Orlando
$142k-$190k/yr HybridFull Time
The Walt Disney Company
The Walt Disney CompanyNYSE: DIS: Produces movies, operates theme parks, and provides streaming services.
5+ YOE5+ years software engineering experience with 3+ years Mulesoft; experience with API management (Google Apigee), SQL, Java, Python, AI/ML frameworks, LLMs, RAG, cloud platforms, Kubernetes, and CI/CD.
Mulesoft, Google Apigee, SQL, TensorFlow, PyTorch, Scikit-learn, Retrieval Augmented Generation (RAG), LLM, Java, Python, AWS, GCP, Azure, Kubernetes, CI/CD
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2mo
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Staff Software Engineer
United States or Canada or New York City or Los Angeles or Boston
RemoteFull Time
Function Health
Function Health: Comprehensive lab testing platform providing personalized health insights.
12+ YOE12+ years software engineering experience with leadership in startups, strong Python skills, cloud & containerization (AWS, Google Cloud, Docker), experience building large-scale systems, CI/CD, TDD, and remote collaboration.
Python, Docker, AWS, Google Cloud, React, React Native, Postgres
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