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756 senior software engineer python jobs at 257 companies in Downey, CA

PromotedHiringCafe
Founding Backend / Infra Engineer
Cupertino, CA, US
$160k-$300k/yr On-SiteFull Time
HiringCafe
HiringCafe: Building a 100× better job search engine to take on Indeed and LinkedIn.
Own the crawlers, pipelines, and infrastructure powering a real-time job search engine. Strong Node.js and Python fundamentals; bonus points for security and reverse-engineering chops.
Node.js, Python, Elasticsearch, Redis
Help us #BeatIndeed & #BeatLinkedIn
PromotedHiringCafe
Founding Full-stack / Product Engineer
Cupertino, CA, US
$130k-$300k/yr On-SiteFull Time
HiringCafe
HiringCafe: Building a 100× better job search engine to take on Indeed and LinkedIn.
Help us build a 100× better job search engine. We need a full-stack engineer with great taste, sharp fundamentals, and a track record of shipping polished product on React/Next.js plus a real backend (Firebase, Elasticsearch, Redis, Stripe).
React, Next.js, TypeScript, Firebase, Elasticsearch, Redis, Stripe
Help us #BeatIndeed & #BeatLinkedIn
1mo
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Senior Professional Software Engineer (Python)
Irvine or Oklahoma City or Sunrise or Oxford or Dallas or Austin
$129k-$165k/yr HybridFull Time
Cotality
Cotality: Provider of property intelligence, data, and analytics solutions.
5+ YOEBachelor's or Master's in Computer Science/AI or related, 5+ years software engineering, expert Python/FastAPI, microservices, Snowflake/Databricks, cloud (GCP/AWS/Azure), Agile (Jira/Confluence), strong communication and mentoring skills.
Python, FastAPI, Snowflake, Databricks, GCP, AWS, Azure, Jira, Confluence, YAML
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2mo
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Senior Software Engineer, AI
El Segundo or United States
$153k-$170k/yr RemoteFull Time
ImmunityBio
ImmunityBioNASDAQ: IBRX: Develops next-generation immunotherapies for cancer and infectious diseases.
7+ YOESenior software engineer with 7+ years of experience in Python/Typescript, AI agent frameworks, and production-grade systems.
Python, TypeScript, FastAPI, Docker, LangGraph, LangChain, CrewAI, LlamaIndex, Chroma, Milvus, Weaviate, Qdrant
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1mo
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Senior Professional Software Engineer (Python)
Irvine or Oklahoma City or Sunrise or Oxford or Dallas or Austin or United States
$129k-$165k/yr HybridFull Time
Cotality
Cotality: Provides property data, analytics, and workflow intelligence solutions.
5+ YOEBachelor's degree in CS/AI (or related), 5+ years software engineering, expert Python/FastAPI, microservices and API design, Snowflake/Databricks experience, cloud (GCP/AWS/Azure), Agile (Jira/Confluence), TDD, UI/UX and ontology/semantic knowledge.
Python, FastAPI, Snowflake, Databricks, GCP, AWS, Azure, Jira, Confluence, YAML
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2mo
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Senior Software Engineer, Perception
Costa Mesa, California, United States
$220k-$292k/yr OnsiteFull Time
Anduril Industries
Anduril Industries: Defense technology building autonomous military hardware and software.
4+ YOESenior software engineer for computer vision and ML in Linux; strong C++/Python, ML models, CV/robotics focus, security clearance eligible.
C++, Python, Linux, TensorRT, ONNX, PyTorch, TensorFlow, CI/CD
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1mo
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Senior Software Engineer
Los Angeles, California, United States
$180k-$200k/yr OnsiteFull Time
Motorola Solutions
Motorola SolutionsNYSE: MSI: Provides mission-critical communications and public safety technology.
8+ YOE8+ years software engineering; 6+ years Python/NodeJS; Linux/DevOps; Docker/Kubernetes; Jira/Azure DevOps; US citizen with ability to obtain security clearance.
Python, Node.js, Linux, DevOps, Docker, Kubernetes, Jira, Azure DevOps
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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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2mo
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Senior Software Engineer - Micro Grid Controller
Irvine, California, United States
$114k-$171k/yr OnsiteFull Time
ETAP
ETAP: Electrical power system modeling and analysis software solutions.
7+ YOESenior Software Engineer with 7+ years in C/C++, Python, or Perl; strong Linux; experience with CI/CD, system integration, and cybersecurity for critical infrastructure.
C, C++, Python, Perl, Linux, RHEL, MongoDB, SQL, Modbus, DNP3, IEC 61850, CI/CD
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1mo
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Senior Software Developer
Los Angeles, California, United States
$143k-$190k/yr RemoteFull Time
GDIT
GDITNYSE: GD: Delivers IT and mission services to government agencies.
5+ YOE5+ years of software development experience; US citizenship; remote role; minimal travel; strong Java/Python; cloud and distributed systems expertise.
Java, Python, Cloud, Microservices
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1mo
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Senior Software Engineer, Match Team
New York or Los Angeles
$180k-$210k/yr HybridFull Time
Enigma
Enigma: Provides data and intelligence on small business financial health.
5+ YOE5+ years software engineering; strong Python; cloud (AWS); backend systems/APIs; experience with distributed systems and data delivery.
Python, Typesense, AWS, Docker, Terraform, Elasticsearch, OpenSearch, FAISS
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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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2mo
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Senior Software Engineer, Air AI
Mountain View or Los Angeles or San Francisco or New York City
$170k-$230k/yr HybridFull Time
Commure
Commure: AI-powered software platform for healthcare workflow and administrative automation.
4+ YOE4+ years software engineering; strong fullstack Python backend and TypeScript/React frontend; Docker and Kubernetes; experience with LLM APIs; production AI features; able to ship quickly.
Python, TypeScript, React, Docker, Kubernetes
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5d
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Senior Software Engineer
Brea, California, United States
$130k-$147k/yr HybridFull Time
RAVE Aerospace
RAVE Aerospace: Developing in-flight entertainment and connectivity systems for airlines.
6+ YOEBachelor's in Engineering/CS or equivalent, 6+ years software development, experience with C/C++ and modern stacks (Qt/QML, Node.js, Golang, React, Typescript, Python), and systems-level debugging.
C, C++, Linux, UNIX, Microsoft .NET, C#, JavaScript, SQL, Qt/QML, Node.js, Golang, React, Typescript, Python, PostgreSQL, Docker, MQTT, Microservices, npm, Bower, Webpack
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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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2w
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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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Senior Software Engineer (Burbank, CA, US, 91505)
Burbank, California, United States
$124k-$170k/yr OnsiteFull Time
Paramount
ParamountNASDAQ: PSKY: Produces and distributes media content across global entertainment platforms.
5+ YOE5+ years professional software engineering; strong Java 17+/Spring Boot; TypeScript/React/Next.js; Python; databases; CI/CD; good communication.
Java, Spring Boot, TypeScript, React, Next.js, Python, PostgreSQL, MySQL, Kafka, Pub/Sub, Solr, Elasticsearch, Docker, Kubernetes, CI/CD
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1mo
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Senior Software Engineer - Safety Platform
San Francisco or Los Angeles
$196k-$221k/yr HybridFull Time
Discord
Discord: A platform providing voice, video, and text communication services.
5+ YOE5+ years in software development; backend focus; proficiency in Python, Rust, or TypeScript; experience with production services at scale; distributed systems; cloud (GCP/AWS); strong debugging, observability, and cross-functional collaboration.
Python, Rust, TypeScript, GCP, AWS, Observability tools, Distributed systems
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3mo
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Software Systems Engineer (Senior/Lead)
El Segundo, California, United States
OnsiteFull Time
Boeing
BoeingNYSE: BA: Designing and manufacturing commercial aircraft and defense systems.
5+ YOESenior/Lead Software Systems Engineer with 5+ years in space/ground systems, leadership experience, Java/C++, Python, DoD Secret clearance, onsite in El Segundo, CA.
Java, C++, Python, GitLab, CI/CD, DevSecOps, Docker, Kubernetes, SQL, NoSQL, Kafka, ActiveMQ, CCSDS
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1w
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Senior Software Engineer | Rocky Program
Albuquerque or Kent or El Segundo
$198k-$286k/yr OnsiteFull Time
Boeing
BoeingNYSE: BA: Designs and manufactures aircraft, defense systems, and space technology.
10+ YOEActive U.S. Top Secret clearance, Bachelor’s degree, 10+ years software engineering experience with systems engineering background; experience with Java/C++/Python, cloud, CI/CD, and software lifecycle practices.
Java, C++, Python, REACT, jQuery UI, Open Layers, Spring Framework, Hibernate, RDBMS, MongoDB, REST, OpenAPI, Ivy, Maven, Gradle, Git, Jenkins, AWS, Azure
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3w
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Senior Software Engineer I
Long Beach, California, United States
$132k-$160k/yr OnsiteFull Time
Rocket Lab
Rocket LabNasdaq: RKLB: Operates launch vehicles and manufactures satellites for space missions.
5+ YOE5+ years software engineering experience, degree or equivalent, expertise in Python, backend architecture, CI/CD, container orchestration (Kubernetes), Git, REST APIs, and experience deploying services at scale.
Python, CI/CD, Git, Kubernetes, Jira, Redmine, Pandas, NumPy, SQL
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1mo
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Senior Software Engineer, Platform
Irvine or Newport Beach or Denver or San Francisco or Seattle
$185k-$200k/yr HybridFull Time
Compa
Compa: AI-powered compensation intelligence platform for enterprise teams.
5+ YOE5+ years backend software engineering experience; hands-on AWS, Python, Django, and Postgres; strong DevOps/SRE fundamentals (CI/CD, observability, incident response); networking and distributed systems knowledge.
AWS, Python, Django, Postgres, Kubernetes, CI/CD, Infrastructure as Code (IaC), ML Ops
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