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114 principal software engineer jobs at 22 companies in Oxnard, CA

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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
2mo
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Engineer/ Principal Engineer Software - FPGA Developer
El Segundo, California, United States
$92k-$138k/yr OnsiteFull Time
Northrop Grumman
Northrop GrummanNYSE: NOC: Develops and manufactures advanced aerospace, defense, and space systems.
2+ YOEBachelor’s in STEM with 2+ years (Software Engineer) or 5+ years (Principal Software Engineer); or Master’s with 0-3 years; ability to obtain Secret clearance; FPGA development experience.
FPGA, HDL, Verilog, VHDL, FPGA development tools, Lab equipment, SIL, Simulation
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2mo
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Principal Software Engineer
New York or Santa Monica
$188k-$265k/yr HybridFull Time
The Walt Disney Company
The Walt Disney CompanyNYSE: DIS: Produces movies, operates theme parks, and provides streaming services.
10+ YOE10+ years in software engineering with architecture and distributed systems; cloud (AWS); Java/Python; microservices; API design; hands-on coding.
AWS, S3, DynamoDB, Kinesis, Kafka, Java, Python, API Design, Microservices, Distributed Systems, Cloud
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2mo
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Principal Software Engineer
New York or Santa Monica
$197k-$265k/yr HybridFull Time
The Walt Disney Company
The Walt Disney CompanyNYSE: DIS: Produces media content and operates global theme parks.
10+ YOE10+ years in software engineering with architecture and distributed systems; BS in CS/IS/ENG or related field; strong cloud, microservices, API design; proficient in Java/Python; hands-on coding; excellent communication.
AWS, S3, DynamoDB, Kinesis, SQS, Kafka, Java, Python, Microservices, APIs, Data modeling, Design patterns
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3mo
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Principal Software Engineer
Hawthorne or El Segundo or Los Angeles
$200k-$400k/yr OnsiteFull Time
Freeform
Freeform: Deploys autonomous AI-powered metal 3D printing factories.
10+ YOE10+ years of hands-on experience building complex software systems (C/C++/Rust) in autonomy-focused environments.
C/C++, Rust, FPGAs, GPUs, edge computing, real-time control
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Principal / Sr Principal Engineer Software
San Diego or El Segundo
$114k-$171k/yr OnsiteFull Time
Northrop Grumman
Northrop GrummanNYSE: NOC: Designs and manufactures advanced aerospace and defense systems.
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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1mo
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Principal Software Engineer
San Diego or Valencia
$107k-$203k/yr HybridFull Time
Boston Scientific
Boston ScientificNYSE: BSX: Developer and manufacturer of innovative medical devices and therapies.
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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1mo
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Principal Embedded Software Engineer
El Segundo, California, United States
$201k-$314k/yr OnsiteFull Time
Radiant
Radiant: Designs and manufactures portable, mass-produced nuclear microreactors.
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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1mo
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Principal Software Test Engineer, Onsite
Goleta, California, United States
$118k-$225k/yr OnsiteFull Time
RTX
RTXNYSE: RTX: RTX provides advanced aerospace and defense systems and services.
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
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3w
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Principal Software Engineer
El Segundo, California, United States
$150k-$190k/yr HybridFull Time
KBR
KBRNYSE: KBR: Provides engineering, technology, and professional services for global markets.
10+ YOEAbility to obtain DoD Secret clearance; Bachelor's in CS/SE/CE; 10+ years software development; expertise in distributed systems, full‑stack development, Angular, Kafka, event-driven architectures, DevSecOps and CI/CD.
Angular, Kafka, Kafka Streams, Apache Flink, RabbitMQ, NATS, OpenTelemetry, Prometheus, Grafana, ELK, Microsoft Word, Microsoft Excel, Microsoft PowerPoint, Kubernetes, CI/CD, DevSecOps
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2w
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Principal Software Engineer - AI
Woodland Hills or Los Angeles or Alabama or Arizona or California or Colorado or Connecticut or Florida or Georgia or Illinois or Indiana or Kentucky or Massachusetts or Michigan or North Carolina or New Jersey or Nevada or New York or Ohio or Pennsylvania or South Carolina or Texas or Utah or Virginia
$200k-$230k/yr HybridFull Time
Convoso
Convoso: AI-powered contact center platform for outbound sales teams.
10+ YOE10+ years software engineering experience, 5+ years backend work in Python or PHP, expertise building LLM-based AI agent systems, production LLM API integration, MySQL proficiency, and automated testing for AI workflows.
LLM, OpenAI, Claude, GitHub Copilot, MySQL, Python, Django, Flask, PHP, Symfony, Laravel, React
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1mo
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Principal Software Engineer
Thousand Oaks or United States
$144k-$195k/yr RemoteFull Time
Amgen
AmgenNASDAQ: AMGN: Develops and manufactures biotechnology medicines for serious diseases.
5+ YOE3+ MgmtRequires 5+ years frontend and backend development experience (React, TypeScript, Node.js, Python), 3+ years leading teams, experience with AI/LLMs and enterprise integrations, and experience designing APIs and microservices.
React, React.js, Next.js, TypeScript, Node.js, Python, Generative AI, Large Language Models (LLMs), Retrieval Augmented Generation (RAG), Azure OpenAI, OpenAI, Anthropic, Gemini, Azure, GitHub Actions, Azure DevOps, CI/CD, Infrastructure as Code, Docker, Kubernetes, LangChain, LlamaIndex, Semantic Kernel, Salesforce, Conga CLM, Conga CPQ, Model N, MuleSoft, Databricks, Anaplan
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2w
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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
Snap
SnapNYSE: SNAP: Develops social media applications and augmented reality technology.
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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1w
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Principal Radar Software Engineer
Agoura Hills, California, United States
OnsiteFull Time
Aptiv
AptivNYSE: APTV: Engineers electrical architectures and safety software for vehicles.
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
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2w
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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
$276k-$414k/yr OnsiteFull Time
Snap
SnapNYSE: SNAP: Provides visual messaging software and augmented reality wearable devices.
10+ YOEBachelor's in a technical field or equivalent experience; 10+ years software development; 2+ years technical leadership; experience architecting distributed systems and operating highly-available services at scale; ads domain preferred.
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2mo
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Principal Software Engineer, AI Platform Engineering
El Segundo, California, United States
HybridFull Time
Saviynt
Saviynt: Provides AI-powered identity governance and cloud security platforms.
8+ YOE8+ years of data engineering at production scale; end-to-end data lake ownership; experience with Spark/Dataflow/Beam; strong in data governance and multi-tenant architectures.
GCS, Dataproc, Spark, Iceberg, Delta Lake, Beam, Dataflow, Flyte, Kubeflow Pipelines, Airflow, Prefect, Protobuf, Avro, dbt, Great Expectations, Feast, Tecton, S3, Redis, Pgvector, Qdrant, GKE, gRPC, HTTPS, mTLS, PySpark, Scala
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1mo
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Principal Software Engineer - Mobile Development
Valencia or San Diego or San Jose
$107k-$203k/yr HybridFull Time
Boston Scientific
Boston ScientificNYSE: BSX: Manufacturer of interventional medical devices and technologies.
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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3mo
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Senior/Staff/Principal C++ Software Engineer
San Francisco or Malibu
OnsiteFull Time
Horizon Surgical Systems
Horizon Surgical Systems: AI-driven robotic systems for ophthalmic microsurgery
5+ YOE5+ years industrial C++ software development; strong C++, Python/Java/JavaScript; Linux; robotics/ROS2 or DDS a plus; AI labeling or cloud backend experience preferred.
C++, Python, Java, JavaScript, Linux, ROS 2, DDS, Git, CI/CD, AI labeling
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2mo
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Principal Systems Engineer (Valencia, CA, US, 91355)
Valencia, California, United States
$102k-$194k/yr HybridFull Time
Boston Scientific
Boston ScientificNYSE: BSX: Developing and manufacturing innovative medical devices for less-invasive treatments.
12+ YOEBachelor’s degree in biomedical/electrical/computer engineering or related field; 12+ years engineering experience; 10+ years in mixed hardware/software systems; 10+ years in regulated medical systems; strong requirements and systems engineering skills.
FMEA, PLM, Regulatory documentation, Systems engineering tools
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1w
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Principal GNC Engineer
Simi Valley, California, United States
$155k-$170k/yr OnsiteFull Time
ALTEN
ALTENEuronext Paris: ATE: Provides engineering and technology consulting services to industrial clients.
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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2d
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Senior Principal Test Engineer
Northridge, California, United States
$136k-$230k/yr OnsiteFull Time
MiniMed Group
MiniMed GroupNasdaq: MMED: A that designs and delivers insulin delivery systems and related medical device technologies.
6+ YOEAdvanced engineering degree with 6–10+ years relevant experience, leadership in test equipment design, familiarity with FDA/ISO medical device standards, and experience with hardware/software test systems.
LabVIEW, Python, C++, Altium Designer
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