88 principal engineer software development jobs at 22 companies in Santa Paula, CA
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Principal Software Engineer - Mobile Development
Valencia or San Diego or San Jose
$107k-$203k/yr HybridFull Time
8+ YOEBachelor's degree in CS/Software Engineering, 8+ years Android mobile development (≥2 years medical device apps), 3+ years AWS experience, expertise with Kotlin/Java/Android Jetpack, BLE and secure protocols, knowledge of medical device software standards.
Kotlin, Kotlin Multiplatform, Java, Android Jetpack, MVVM, Rx, XML data binding, Bluetooth Low Energy (BLE), AWS KMS, AWS S3, AWS DynamoDB, AWS Cognito, API Gateway, AWS EC2, AWS CloudWatch, Jenkins, Git, SonarQube, Atlassian Agile tools, TensorFlow, Pandas, NumPy, R, HTTPS, OAuth
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Principal Software Engineer
San Diego or Valencia
$107k-$203k/yr HybridFull Time
8+ YOE8+ years Android app development; 2+ years in medical devices; Kotlin/Java; AWS; IEC 62304/ISO 13485/FDA design controls; strong cross-functional collaboration.
Kotlin, Kotlin Multiplatform, Java, Android Jetpack, BLE, AWS, OAuth, Git, Jenkins, SonarQube, Atlassian Agile tools, API Gateway, Cognito, DynamoDB, S3, EC2, KMS, REST
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Principal / Sr Principal Engineer Software
San Diego or El Segundo
$114k-$171k/yr OnsiteFull Time
5+ YOERequires Top Secret clearance eligibility, 5+ years engineering experience (principal) or 8+ (sr principal), proficiency with Java 21+, Spring Boot, Apache NiFi, microservices, observability tools, and experience in enterprise integration and data flow technologies.
Spring Integration, Apache Camel, Java 21+, Prometheus, Grafana, Apache NiFi, AWS SDK for Java v2, Spring Boot, MongoDB, Elasticsearch, Angular, React, Vue.js, Spring WebSocket, WebSockets, SSE, Protobuf, JAXB, Jackson, JSON, JMS, ActiveMQ Classic, Resilience4j, Docker, Testcontainers, LocalStack, Project Reactor, Spring Boot Actuator, Micrometer, Avro
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Principal Software Engineer
Santa Monica or Los Angeles or New York City or Bellevue or Seattle or San Francisco or Palo Alto
$235k-$414k/yr OnsiteFull Time
10+ YOE10+ years software development experience, technical leadership experience, BS in a technical field (or equivalent), experience architecting distributed systems, strong software design and debugging skills, proficiency using AI tools and modern engineering workflows.
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Principal Software Development Engineer in Test
New York or Glendale
$172k-$241k/yr HybridFull Time
10+ YOE10+ years in quality engineering or software development; leadership; experience scaling test automation.
Python, OO languages, Test automation, Cloud-native testing
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Principal Embedded Software Engineer
El Segundo, California, United States
$201k-$314k/yr OnsiteFull Time
8+ YOELead embedded software architecture for I&C systems; 8+ years; onsite in El Segundo; RTOS experience; C/C++.
Zephyr RTOS, NuttX, ThreadX, Embedded C, C++, CMake, Simulink Autocode C++ export
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Principal Software Engineer, Real-time Embedded, Onsite
Goleta, California, United States
$118k-$225k/yr OnsiteFull Time
8+ YOE8+ years in software design/development with embedded real-time systems; C/C++ experience; embedded processors, FPGA, SOC, and real-time firmware; eligibility for a DoD secret clearance.
C, C++, Embedded Linux, bare metal, DDR, VME, PCIe, SOC, FPGAs, Signal Analysis, Lab Equipment, Visual Studio, Vitis, TortoiseSVN, Jenkins, Jira, Collaborator, MATLAB/Simulink, WPF, MVVM, .NET C#
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Principal Software Engineer
Canada or El Segundo
RemoteFull Time
10+ YOE10+ years software engineering experience, staff-level technical leadership, proficiency with .NET, SQL/SQL Server, and Angular; experience with CI/CD, TDD, observability, and Git; Bachelor's or equivalent.
SQL, SQL Server, .NET, Angular, Git, SonarQube, Mend, CI/CD, TDD
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Principal Software Engineer
El Segundo, California, United States
$150k-$190k/yr HybridFull Time
10+ YOEBachelor's degree and 10+ years of software development experience. Requires distributed systems, full-stack, Angular, backend APIs, Kafka, event-driven architecture, Agile, DevSecOps, CI/CD, and ability to obtain a DoD Secret clearance.
Angular, Kafka, Kubernetes, Microsoft Word, Microsoft Excel, Microsoft PowerPoint, Kafka Streams, Apache Flink, RabbitMQ, NATS, OpenTelemetry, Prometheus, Grafana, ELK, CI/CD
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Principal Software Engineer
Woodland Hills, California, United States
$114k-$171k/yr OnsiteFull Time
5+ YOEBachelor's in STEM with 5+ years, master's with 3+ years, or PhD with 1+ year; active Top Secret clearance; software experience in C, C++, C#, Java, JSP, web development, CI/CD, Linux, and Windows Server.
C, C++, C#, Java, Java Server Pages (JSP), DevSecOps, Agile, Windows Server, Linux, CI/CD, Git, Docker, Kubernetes, Scrum, MLOps
2mo
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Principal Radar Software Engineer
Agoura Hills, California, United States
OnsiteFull Time
10+ YOEBachelor's degree in computer engineering, computer science, or electrical engineering and 10+ years' experience with embedded software, radar signal processing, C++, MATLAB, DSPs, data analysis, and software integration.
MATLAB, C++, Git, SVN, ROS, CUDA, CAN, Ethernet, Microsoft Azure, Amazon Web Services (AWS), Python, Hardware-in-the-Loop, Software-in-the-Loop
2w
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Principal Software Engineer - Observability
New York City or Glendale
$193k-$259k/yr HybridFull Time
10+ YOEBachelor’s degree or equivalent experience; 10+ years of software engineering; AI/ML, scalable APIs, cloud platforms, observability, agentic workflows, CI/CD, microservices, and technical leadership experience.
FastAPI, Flask, Anthropic, OpenAI, Google, Meta, Claude, Qwen, LangChain, LangGraph, AWS, Microsoft Azure, GCP, Cursor, Claude Code, GitHub, Docker, AWS/EKS, Datadog, Grafana, Conviva, OpenTelemetry (OTel), AWS Bedrock, PySpark, Pandas, Databricks, Snowflake, GPT
1mo
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Principal Software Engineer, Ads Platform
Palo Alto or New York City or Bellevue or Santa Monica or Seattle or San Francisco
$235k-$414k/yr OnsiteFull Time
10+ YOEBachelor's in technical field or equivalent experience; 10+ years software development; 2+ years technical leadership; experience architecting distributed systems and operating highly-available services; strong software design and collaboration skills; ads domain experience preferred.
2mo
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Principal Software Engineer
Tampa or Thousand Oaks
$157k-$212k/yr HybridFull Time
2+ YOEDeep expertise in ML/Generative AI, MLOps/LLMOps, cloud platforms, and scalable system architecture; proven track record delivering production-grade ML systems; advanced proficiency in Python and modern ML frameworks; degree + experience combinations required.
MLflow, Kubeflow, Airflow, CI/CD, Docker, Kubernetes, AWS, GCP, Azure, Python, PyTorch, TensorFlow, Hugging Face, LangChain, Databricks, Spark, Hadoop, Apache Spark, Apache Airflow, OLAP, OLTP
1mo
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Principal Radar Software Engineer
Agoura Hills, California, United States
OnsiteFull Time
10+ YOEBachelor's in Computer Engineering/Computer Science/Electrical Engineering; 10+ years embedded/parallel processing/C++/MATLAB experience; radar signal-processing, DSP optimization, logging, integration, and revision-control knowledge.
MATLAB, C++, git, svn, ROS, CUDA, Azure, AWS, Python, DSP, CAN, Ethernet, Hardware-in-the-Loop, Software-in-the-Loop
2w
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Principal Embedded Software Engineer
Moorpark, California, United States
$147k-$224k/yr OnsiteFull Time
12+ YOEBachelor's degree or equivalent experience; 12–15 years of relevant experience; proficiency in Python, C, C++11, C++ STL, or OpenCL; embedded Linux/ARM driver development and troubleshooting experience.
Python, C, C++11, C++ STL, OpenCL, Microsoft Visual Studio, Eclipse, RS-485, RS-232, CAN, I2C, SPI, USB, JIRA, SVN, Bitbucket, GitLab, STM32, RTOS, µC/OS, freeRTOS, Video 4 Linux, Embedded Linux, Linux, ARM, Robot Operating System (ROS), Test Driven Development (TDD)
1mo
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Principal GNC Engineer
Simi Valley, California, United States
$155k-$170k/yr OnsiteFull Time
15+ YOEMaster's/PhD in engineering, U.S. citizenship and DoD Secret clearance, 15+ years GNC experience in missile/aerospace systems, GNC algorithm development, software integration, testing, Agile/Waterfall experience, MS Office proficiency.
MS Office
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Principal Engineer - Infinity Ward - Temporary
Woodland Hills, California, United States
$171k-$317k/yr OnsiteFull Time, Temporary
15+ YOERequires 15+ years of systems or engine development, shipped game contributions, C++ expertise, threaded systems architecture, debugging, performance analysis, problem-solving, and deadline-driven independent work.
C++, PC, Xbox, PlayStation
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Principal Forward Deployed Engineer
Culver City, California, United States
$195k-$245k/yr HybridFull Time
8+ YOE8+ years production full-stack engineering experience; experience with cloud (AWS/Azure), containers, IaC, EM-assisted development tools, LLM-based systems; strong stakeholder communication and autonomy; Bachelor's degree or equivalent experience.
Claude Code, Cursor, GitHub Copilot, Windsurf, Amazon Bedrock, Azure OpenAI, Anthropic, OpenAI APIs, Moveworks, Agentic Foundation, AWS, Azure, GCP
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Principal Forward Deployed Engineer
Culver City, California, United States
$195k-$245k/yr HybridFull Time
8+ YOE8+ years full-stack production engineering; proficiency across backend, data pipelines, web UIs, cloud (AWS/Azure/GCP), containers, infra-as-code; hands-on LLM/production-AI experience and AI-assisted development tooling; Bachelor's or equivalent experience.
AI Development Life Cycle (AI-DLC), Claude Code, Cursor, GitHub Copilot, Windsurf, Amazon Bedrock, Azure OpenAI, Anthropic, OpenAI APIs, Moveworks, Agentic Foundation, AWS, Azure, GCP