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129 sr principal software engineer jobs at 54 companies in Oceanside, CA

1mo
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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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2mo
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Principal/Sr Principal Engineer Link 16 Embedded Software
San Diego or United States
$114k-$213k/yr OnsiteFull Time
Northrop Grumman
Northrop GrummanNYSE: NOC: Develops and manufactures advanced aerospace, defense, and space systems.
5+ YOERequires STEM degree plus 5+ years (Principal) or 8+ years (Sr Principal) experience; proficiency in C/C++, OOP, embedded real-time systems, Link-16 waveform testing, Jira/Bitbucket/Git, ability to obtain U.S. Secret clearance, and onsite work in San Diego.
C/C++, Object Oriented programming, Jira, Bitbucket, Git, Link-16, TACAN, CORBA, SCA, Software Defined Radios, Vitis, Vivado, Yocto/Petalinux, Zynq, Ultrascale+, VERSAL, I2C, SPI, UART, PCIe, Ethernet, TCP/IP, Rust, Rhapsody, DOORS, Clearcase, Green Hills AdaMulti, Assembly language, PowerPC
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3mo
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Sr. Principal Systems Engineer
Irvine, California, United States
$125k-$206k/yr OnsiteFull Time
BD
BDNYSE: BDX: Manufactures medical devices, surgical instruments, and pharmacy automation systems.
4+ YOEBachelor’s or higher in engineering with 4+ years; medical device experience; system requirements, verification/validation, and design controls; IEC 60601-1 knowledge; project leadership preferred.
Electrical Engineering, Mechanical Engineering, Biomedical Engineering, Software, IEC 60601-1, PTC, Polarion, JAMA, DOORS
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3mo
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Principal Software Engineer
Huntington Beach or San Francisco
$220k-$265k/yr OnsiteFull Time
Mach Industries
Mach Industries: Designs and manufactures autonomous unmanned aerial vehicles for defense.
10+ YOE10+ years leading large-scale software projects; expert in C++, Rust, Python or C; real-time/embedded systems experience.
C++, Rust, Python, C, RTOS, embedded systems
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3mo
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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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1w
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Principal Software Engineer
Irvine, California, United States
$118k-$218k/yr OnsiteFull Time
Cadence Design Systems
Cadence Design SystemsNASDAQ: CDNS: Develops computational software and hardware for electronic system design.
PhD in a related engineering field plus expertise in nonlinear mechanics, finite element analysis, numerical methods, and software development using Fortran, C/C++, Python, Linux shell scripting, and commercial FEA software.
MSC Nastran, Marc, Microsoft Word, Microsoft Excel, Fortran, C, C++, Python, Linux
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Principal Software Engineer
San Diego, California, United States
$190k-$210k/yr OnsiteFull Time
Mainstay Medical
Mainstay Medical: Restorative neurostimulation therapy for mechanical chronic low back pain.
15+ YOE15+ years software engineering experience with 8+ years in regulated medical devices, familiarity with IEC 62304 and FDA PMA processes, proficiency in .NET/C#/Blazor/.NET MAUI, Azure, embedded firmware, and strong cybersecurity and leadership skills.
.NET, C#, Blazor, .NET MAUI, EF Core, SQLite, Azure DevOps, Git, Figma, Claude Code, Azure, Bluetooth, gRPC
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CPU Software Architecture Principal Engineer
San Diego, California, United States
$193k-$289k/yr OnsiteFull Time
Qualcomm
QualcommNASDAQ: QCOM: Designs and manufactures semiconductors and wireless telecommunications products.
8+ YOEBachelor's +8 yrs (or Master's +7 yrs, PhD +6 yrs) software engineering experience; 4+ yrs programming in C, C++, Java, Python; experience with embedded/firmware, ARM CPU architecture and performance optimization; strong debugging and collaboration skills.
C, C++, Java, Python, ARM assembly, Linux, zephyr RTOS, ARMv8, ARMv9, RISCV
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Principal, Software Engineer
Lake Forest, California, United States
$128k-$166k/yr OnsiteFull Time
Alcon
AlconNYSE: ALC: Manufactures ophthalmic surgical equipment and vision care products.
5+ YOE5+ years relevant experience, Bachelor’s degree or equivalent, fluent English, C++/C# development, RTOS and Windows experience, familiarity with medical device software lifecycle and regulations.
C++, C#, MATLAB, LabVIEW, Microsoft Word, Microsoft Excel, Microsoft Visio, Microsoft Visual Studio, AWS DevOps, Jira, Git, ADO, GitHub, TFS
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6d
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Principal Software Engineer
Costa Mesa, California, United States
$165k-$283k/yr RemoteFull Time
Siemens
SiemensXETRA: SIE: Manufactures industrial automation, infrastructure, and energy technology systems.
10+ YOE10+ years of software development experience; distributed systems and real-time applications expertise; technical strategy and architecture leadership; backend language proficiency; system design, optimization, and fault-tolerance skills.
Python, Go, TypeScript, PyTorch, Hugging Face, ONNX Runtime, LangChain, AWS, Kubernetes, Redis, PostgreSQL, Amazon S3, Terraform, GitHub Actions, Datadog, Grafana, Prometheus
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2mo
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Principal Software Engineer
Austin or Irvine or Dallas
$134k-$185k/yr HybridFull Time
Cotality
Cotality: Provider of property intelligence, data, and analytics solutions.
5+ YOEBachelor's degree required, 5+ years software development experience, strong SDLC and architecture skills, cross-stack programming, experience driving adoption of tools and AI-assisted workflows (GitHub Copilot, LLM APIs, agent frameworks), strong communication and leadership.
GitHub Copilot, LLM APIs, agent frameworks, SDKs
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1w
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Principal Software Engineer
Columbus or Irvine or United States or New York City
RemoteFull Time
Avandra Imaging
Avandra Imaging: Federated network for de-identified medical imaging and clinical data.
12+ YOE12+ years engineering experience, distributed systems expertise, technical leadership, cloud-native systems, CI/CD, observability, automated testing, infrastructure as code, databases, and regulated healthcare environments.
CI/CD, Docker, Kubernetes, AWS, HIPAA
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1w
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Principal Software Engineer
Columbus or Irvine or United States
HybridFull Time
Aegis Ventures
Aegis Ventures: Venture studio building healthcare and artificial intelligence companies.
12+ YOE12+ years engineering experience, distributed systems expertise, technical leadership, CI/CD, observability, automated testing, infrastructure as code, Docker, Kubernetes, cloud systems, databases, and regulated healthcare experience.
CI/CD, Docker, Kubernetes, AWS, HIPAA
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23h
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Principal Software Developer
Santa Ana, California, United States
$170k-$180k/yr HybridFull Time
HomeXpress Mortgage
HomeXpress Mortgage: Provides non-qualified mortgage and residential lending services.
7+ YOERequires 7+ years of software development, 5+ years with C#/.NET and PHP, enterprise applications and APIs, Agile/Scrum, DevOps, CI/CD, troubleshooting, and a relevant bachelor's degree.
C#, .NET, PHP, Azure, DevOps, CI/CD, Agile, Scrum, SOA, Microsoft
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2mo
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Principal Software Engineer (Python)
Irvine or Oklahoma City or Sunrise or Oxford or Dallas or Austin
$155k-$180k/yr HybridFull Time
Cotality
Cotality: Provides property data, analytics, and workflow intelligence solutions.
10+ YOEMaster's or Bachelor's in CS/AI (required), 10+ years software engineering, expert Python/FastAPI, semantic/graph and RAG experience, cloud (GCP/AWS/Azure), Git/Unix, ADK, vector DBs, strong communication and leadership.
Git, Unix, Python, FastAPI, FastMCP, ADK, Vector Databases, GraphRAG, RAGAS, DeepEval, HyDE, GCP, AWS, Azure
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1mo
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Principal Software Developer
San Diego, California, United States
$121k-$181k/yr OnsiteFull Time
Solar Turbines
Solar TurbinesNYSE: CAT: Manufacturer of industrial gas turbines and turbomachinery systems.
7+ YOE7+ years experience with C#, VB.NET, Python, TypeScript and .NET; database design with Oracle/SQL; WinForms/WinUI/XAML experience; ORM (Entity Framework,Dapper); frontend with ReactJS/Angular; degree in engineering/CS/IS.
C#, VB.NET, Python, TypeScript, .NET, Oracle, SQL, WinUI, XAML, WinForms, Entity Framework, Dapper, ReactJS, Angular
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2w
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Principal Software Development Engineer
Escondido or San Diego
$140k-$200k/yr HybridFull Time
One Stop Systems
One Stop SystemsNASDAQ: OSS: Manufacturer of high-performance ruggedized edge computing systems.
5+ YOEB.S. in Software Engineering and 5+ years' experience. Strong TypeScript, Angular, RxJS, web APIs, testing, Git, and debugging skills; excellent communication and problem-solving.
HTML DOM, Fetch, XHR, Storage, UI Events, Navigation, TypeScript, ReactiveJS (RxJS), AI-assisted programming tools, Angular 14+, PrimeNG, Chart.js, Cypress, Git, Microsoft Office Suite, Adobe Acrobat, Revit, AutoCAD
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2mo
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Principal, Software Engineer - Java Developer
Irvine, California, United States
$133k-$227k/yr OnsiteFull Time
Ingram Micro
Ingram MicroNYSE: INGM: Global distributor of technology products and supply chain solutions.
8+ YOEBachelor's degree in computer science or a related science, math, or IT discipline; 8+ years of technical experience; strong Java, Spring, API, database, software design, and testing skills.
Java, Spring Boot, Spring MVC, Spring Security, Hibernate, JPA, Oracle, MySQL, PostgreSQL, REST, SOAP, Kafka, RabbitMQ, Git, Maven, Gradle, CI/CD, Docker, Kubernetes, GCP, AWS, Azure
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1mo
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Principal Engineer, Software (R5285)
United States or San Diego or San Francisco or Dallas or Washington
$220k-$330k/yr RemoteFull Time
Shield AI
Shield AI: Develops autonomous flight software and unmanned aircraft for defense.
15+ YOE15+ years building large production software; strong in TypeScript/C++/Go/Python/Rust; 5+ years React/Node/TypeScript and web applications; experience with Git, Linux, Docker, CI/CD, cloud (Azure/GCP/AWS); client-side LLM context management; strong UX/design and research skills.
TypeScript, C++, Go, Python, Rust, Git, React, Node, JavaScript, Linux, Docker, CI/CD, Azure, GCP, AWS, WebGL, Playwright, Electron, DOM, WebSocket, SSE, HTTP Streaming, LLM
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1mo
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Principal Embedded Software Engineer
Irvine, California, United States
$180k-$220k/yr OnsiteFull Time
Silvus Technologies
Silvus TechnologiesNYSE: MSI: Develops advanced mobile ad-hoc network radios for mission-critical communications.
8+ YOEBachelor's in EE/CS, 8+ years embedded software experience, expertise in embedded Linux on ARM, C programming, Linux kernel driver development; U.S. citizenship required; background check and drug test contingent.
C, Linux, Linux kernel, ARM, RISC-V, AMD UltraScale+ MPSoC, Microchip PolarFire SoC, UltraScale+, IPsec, Internet/Ethernet, socket programming, NIST FIPS 140-3, NIAP Common Criteria, MANET, MN-MIMO
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