85 sr principal software engineer jobs at 26 companies in Santa Paula, CA
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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
1mo
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Principal / Sr. Principal Engineer Software Quality
Woodland Hills, California, United States
$104k-$194k/yr OnsiteFull Time
5+ YOETop-Secret clearance and U.S. citizenship required. Bachelor’s in engineering/STEM (or Master’s), 5+ years software development/integration experience (8+ for Sr.), experience with Agile/Waterfall, scripting (Bash, Python), Linux, Git, EMR metrics collection and QMS familiarity.
Bash, Python, Linux, Git, Microsoft Word, Microsoft Excel, Microsoft PowerPoint, GitLab, Windows 11, ISO 9001, AS9100
3mo
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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
3mo
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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
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 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 Test Engineer, Onsite
Goleta, California, United States
$118k-$225k/yr OnsiteFull Time
8+ YOELead software testing, design test configurations, manage budget/schedule, onsite Goleta role; must obtain/maintain Secret DoD clearance; 8+ years in STEM; team leadership
Jenkins, Jira, DevSecOps, Test Automation
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
5d
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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
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
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 experience; AI/ML, observability, scalable APIs, cloud platforms, agentic workflows, and front-end/back-end systems expertise.
FastAPI, Flask, Anthropic, OpenAI, Google, Meta, Claude, Qwen, LangChain, LangGraph, AWS, Microsoft Azure, Google Cloud Platform, 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.
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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
2mo
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Principal, IT Software Engineer 2
El Segundo or United States
$148k-$268k/yr RemoteFull Time
5+ YOE5+ years software delivery experience in agile/SAFe, strong database (Oracle, MongoDB, PL/SQL) and DevOps (CI/CD) skills, cloud experience (Azure, AWS), knowledge of REST/SOAP, and experience integrating IAM/OAuth.
Oracle, MongoDB, PL/SQL, Microsoft Azure, AWS, CI/CD, SAFe, J2EE, Java, REST, SOAP, OAuth, Identity and Access Management (IAM), Postman, SOAPUI, Mockito
3mo
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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
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)
1d
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Sr. Principal/Architect Engineer Software - Storage (Chronosphere)
New York City or Burbank
RemoteFull Time
Proven experience building scalable, performance-sensitive production systems; fluency in Go, C++, Java, C#, or Rust; and ability to independently own projects from inception through delivery.
Go, C++, Java, C#, Rust, Kubernetes, GCP
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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
2mo
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Principal Structural Engineer - Buildings
Los Angeles, California, United States
$146k-$228k/yr OnsiteFull Time
10+ YOEBachelor's degree in engineering with 10 years' relevant experience, or equivalent master's/PhD pathways. PE and SE licenses preferred; structural analysis software experience preferred.
ETABS, SAP 2000, ADAPT, RISA, Revit, Autodesk, Bluebeam
4w
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Experienced principal blockchain engineer with payment and exchange building experience
Santa Monica, California, United States
OnsiteFull Time
5+ YOE5+ years blockchain experience building dApps, smart contracts, crypto payments, wallets, and scalable Layer 2 solutions; experience with exchanges or gambling platforms preferred.
Ethereum, Binance Smart Chain, Solana, Solidity, Rust, JavaScript, Node.js, Python, Go, Mythril, Slither, MetaMask, Trust Wallet, Optimistic Rollups, zk-Rollups, Django, Express.js, Stake.com