140 principal engineer software development jobs at 40 companies in Moorpark, 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
1mo
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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 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
5d
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Principal Software Engineer
Plano or Boston or Portsmouth or Indianapolis or Columbus or United States or Los Angeles or Philadelphia or San Francisco
$137k-$257k/yr HybridFull Time
8+ YOERequires 8+ years of software engineering experience, enterprise architecture and technical leadership, distributed systems expertise, cloud-native development, and proficiency with JavaScript/TypeScript, React, Node.js, and related tools.
JavaScript, TypeScript, React, Node.js, Next.js, Java, HTML/CSS, Micro Frontends, AWS, CDK, GitHub Actions, OAuth 2.0, OpenID Connect, OWASP Top 10, Playwright, JMeter, Datadog, Splunk, Bridgeway, MFE, CI/CD, DevOps, SecOps, Generative AI
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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 (Platform Team)
Hawthorne or Palo Alto or Redmond or Sunnyvale
$210k-$295k/yr OnsiteFull Time
7+ YOE7+ years of experience building production platforms; or 9+ years without a degree; Bachelor's in CS/CE or other engineering.
Docker, Kubernetes, Terraform, Python, MLOps, Cloud computing, Distributed compute
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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
3d
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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
3w
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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
1w
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Principal Software Engineer (Autonomy)
Palmdale or Fort Worth
$160k-$200k/yr OnsiteFull Time
8+ YOEBachelor's degree in computer engineering, computer science, or related field; 8+ years of software development experience; C, C++, Java, Python, Bash, Git, Linux, Windows, embedded systems, and active Secret clearance required.
C, C++, Java, Python, Bash, Git, Linux, Windows, Atlassian Tools, Confluence, JIRA, Bitbucket, ArduPilot, PX4, MAVLink, Docker, CI/CD
3mo
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Principal Software Engineer, AI Enablement - Central Product
Los Angeles, California, United States
$229k-$320k/yr OnsiteFull Time
8+ YOEBS in Computer Science (or equivalent) with 8-12 years of software engineering; strong systems integration and technical leadership; expert in C++ and another language (Python or C#); experience with AAA games or large-scale live services; AI tooling experience.
C++, Python, C#, Unreal Engine, ML frameworks (e.g., PyTorch, TensorFlow), AI tools and APIs
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
1d
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Principal Software Engineer
Torrance or Orangeville
$195k-$270k/yr OnsiteFull Time
10+ YOE10+ years of software experience, platform architecture ownership, high-volume telemetry and streaming systems, simulation platforms, cloud/container deployment, AI coding tools, and a relevant bachelor's degree or equivalent experience.
Kafka, Pulsar, Kinesis, Flink, Java, C#, Go, C++, Rust, Python, JavaScript, Claude Code, Cursor, Copilot, OPC UA, MQTT, Modbus, Git, Docker, Kubernetes, LLMs, REST, GraphQL, PLM, ERP, MES, LIMS, NQA-1, GAMP 5, 21 CFR Part 11, CI/CD
5d
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Principal, Software Engineer
New York or California or Illinois or Atlanta or Boston or Chicago or Denver or Los Angeles or New York or Salt Lake City or San Diego
$122k-$165k/yr RemoteFull Time
7+ YOERequires 7+ years software experience, 3+ years Python, expert backend and distributed systems knowledge, cloud and Docker experience, API integration, databases, frontend architecture, CI/CD, and technical leadership.
Python, Gemini CLI, Claude Code, Codex, Angular, TypeScript, Google Cloud, AWS, Azure, Docker, Git, Mercurial, Agile, CI/CD, Google's Agent Development Kit (ADK), SQL, NoSQL, LLM
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
Los Angeles or United States
$143k-$190k/yr RemoteFull Time
5+ YOEUS citizen able to obtain Public Trust 6C, 5+ years related experience, proven distributed systems and backend architecture skills, experience with microservices, cloud, observability, and mentoring engineers.
Java, Python, AWS, Azure, GCP, Kubernetes, ECS, Terraform, CloudFormation, Kafka, SQS, EventBridge, REST, GraphQL
1mo
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Principal Software Engineer, Gameplay - Teamfight Tactics
Los Angeles, California, United States
$229k-$320k/yr OnsiteFull Time
10+ YOE10+ years software development; 4+ years Unreal Engine; expert C++ and gameplay engineering; BS in Computer Science or equivalent fundamentals; collaboration, mentoring, and multi-platform experience.
Unreal Engine, C++, Android, iOS
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.