108 principal software engineer jobs at 27 companies in Del Mar, CA
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Principal / Sr Principal Engineer Software
San Diego or El Segundo
$114k-$171k/yrOnsiteFull Time
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
Northrop GrummanNYSE: NOC: Develops and manufactures advanced aerospace, defense, and space systems.
9+ YOESTEM degree with relevant experience (9+ years with BS, 7+ with MS, 3+ with PhD), transferable Top Secret clearance, Java 21+, Spring, NiFi, Prometheus/Grafana, microservices, Angular/React/Vue, observability and networking experience.
Spring Integration, Apache Camel, Java 21, Prometheus, Grafana, Apache Niagara Files (NiFi), AWS SDK for Java v2, Spring Boot, MongoDB, Elasticsearch, Angular, React, Vue.js, WebSockets, Spring WebSocket, Protobuf, JAXB, Jackson, JSON schema, JMS, ActiveMQ Classic, Resilience4j, Docker, OCI, Testcontainers, LocalStack, Project Reactor, Java Streams, Spring Boot Actuator, Micrometer, Avro
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
8+ YOEActive DoD Secret clearance and U.S. citizenship, Bachelor’s in CS/CE (or related) with 8+ years experience, embedded/application C++ development, Linux, software engineering processes, testing, and technical leadership.
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.
United States or San Diego or San Francisco or Dallas or Washington
$220k-$330k/yrRemoteFull Time
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.
Debt Solutions - Principal Software Engineer (React/C#/AWS)
San Diego, California, United States
$211k-$297k/yrHybridFull Time
CoStar GroupNASDAQ: CSGP: Global provider of commercial and residential real estate data.
10+ YOEBachelor's degree required; 10+ years building complex enterprise web applications; expertise in microservices, security, AWS, C#/Java/Python/JavaScript/TypeScript, databases, and event-driven architectures.
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
CohuNASDAQ: COHU: Provides semiconductor test, handling, and inspection equipment and services.
15+ YOEBachelor's or master's degree in a related engineering or computer science field, 15+ years of software engineering experience, expert C/C++ skills, Windows development, hardware integration, troubleshooting, and communication abilities.
Principal Software Developer - Full Stack (Unity, C#)
Austin or San Mateo or Carlsbad or Chicago or Eugene or Toronto
$114k-$180k/yrOnsiteFull Time
Zynga: Develops and publishes social and mobile video games globally.
6+ YOEB.Sc. or equivalent, 6+ years game/mobile software experience, expert C#, 3+ years Unity, shipped mobile titles, experience with performance profiling, AWS, Kubernetes, Datadog, and git.
Unity, C#, AWS, Kubernetes, Datadog, git, Claude Code
ServiceNowNYSE: NOW: Provides a cloud platform for automating enterprise digital workflows.
15+ YOE15+ years software engineering,5+ years at principal/staff/director scope;deep expertise in agentic AI,LLM systems,multi-agent orchestration,RAG,LLMOps/MLOps,AI observability,governance;enterprise cloud architecture and leadership.
Fuse Integration: Developing tactical communication and networking systems for defense.
12+ YOE3+ MgmtB.S. in engineering, 12+ years DevSecOps/software engineering experience with 3+ years technical leadership; expertise in C++, Python, Bash, Kubernetes, Linux, STIG compliance, GitLab CI, Ansible, and cloud (AWS/Azure). US citizenship required.
Firestorm Labs: Develops and manufactures low-cost 3D-printed unmanned aerial vehicles.
15+ YOEBachelor's in engineering or equivalent experience, 15+ years in UAS/robotics/autonomy/software, U.S. citizenship with ability to obtain DoD clearance, hands-on with PX4/ArduPilot/MAVLink, strong Python and C/C++ skills, SIL/HIL experience.
PX4, ArduPilot, MAVLink, Python, C, C++, SIL, HIL, Microsoft Excel, Microsoft Word, Microsoft Outlook, Microsoft PowerPoint
DexcomNASDAQ: DXCM: Develops continuous glucose monitoring systems for diabetes management.
13+ YOEBachelor's degree in a technical discipline with 13+ years of related experience, or master's with 8+ years, or PhD with 5+ years. Requires expertise in distributed, cloud-native, secure, scalable platforms.
REST, gRPC, DevOps, Site Reliability Engineering, infrastructure as code
DexcomNasdaq: DXCM: Manufacturer of continuous glucose monitoring systems for diabetes management.
13+ YOEBachelor’s degree in a technical discipline with 13+ years’ related experience, or master’s with 8+ years, or PhD with 5+ years. Requires large-scale backend/cloud architecture, distributed systems, security, and communication expertise.
Boston ScientificNYSE: BSX: Developing and manufacturing innovative medical devices for less-invasive treatments.
7+ YOEBachelor's in engineering,7+ years engineering experience,5+ years technical leadership,systems engineering across hardware/software,experience with Class II/III medical devices,requirements and verification expertise.