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912 principal software engineer jobs at 252 companies in California

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Principal Engineer Software
McClellan, California, United States
$114k-$171k/yr OnsitePart Time
Northrop Grumman
Northrop GrummanNYSE: NOC: Global aerospace and defense technology.
5+ YOEBachelor’s degree in STEM with 5 years’ related experience or master’s with 3 years; US citizenship; ability to obtain Top Secret clearance; software development, Agile, Scrum, and testing experience.
Agile, Git, GitLab, Bitbucket, Scrum, C++, C, Python, Java, Docker, Atlassian, JIRA, Jenkins, Confluence, Linux Bash, Linux, UNIX, DevOps, DevSecOps, CI/CD
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2w
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(USA) Principal, Software Engineer
Sunnyvale, California, United States
$143k-$286k/yr OnsiteFull Time
Walmart
WalmartNYSE: WMT: Global retail, e-commerce, and supply chain.
5+ YOEBachelor's degree and 5 years' software engineering experience, or 7 years' experience. Requires distributed systems, cloud-native architecture, AI/ML, CI/CD, testing, observability, and technical leadership.
AI/ML, CI/CD
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2mo
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Software Engineer/Principal Software Engineer
McClellan Park, California, United States
$92k-$171k/yr OnsiteFull Time
Northrop Grumman
Northrop GrummanNYSE: NOC: Global aerospace and defense technology.
2+ YOEUS citizen able to obtain Top Secret clearance. Bachelor's in STEM with 2+ years (or Master's with 0) for Software Engineer; or Bachelor's with 5+ years (or Master's with 3+) for Principal. Experience with Agile, Git/GitLab/Bitbucket, C/C++, Python, Java, Docker; software test planning and execution experience preferred.
Agile, Git, GitLab, Bitbucket, C/C++, Python, Java, Docker, Kubernetes, Atlassian, JIRA, Jenkins, Confluence, Linux Bash
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2mo
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Principal, Software Engineer
Sunnyvale or Bellevue
$132k-$286k/yr OnsiteFull Time
Walmart
WalmartNYSE: WMT: Global retail, e-commerce, and supply chain.
5+ YOEPrincipal-level software engineer with 10+ years building large-scale, distributed, cloud-native systems; expertise in microservices, event-driven architectures, Java and modern web frameworks (React/Redux); strong architecture and cross-team leadership.
Java, React, Redux
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Principal Software Engineer
Santa Clara, California, United States
$221k-$387k/yr OnsiteFull Time
ServiceNow
ServiceNowNYSE: NOW: Enterprise software providing cloud-based workflow automation platforms.
15+ YOE15+ years engineering experience; strong system design and architecture for large-scale distributed systems; technical depth in Java or Python; experience with AI-powered products, observability, and enterprise platforms; mentoring and cross-team influence.
Java, Python, ServiceNow Platform
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3mo
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Principal Software Engineer
San Francisco, California, United States
RemoteFull Time
DocuSign
DocuSignNASDAQ: DOCU: Provides intelligent agreement management and e-signature software solutions.
15+ YOE15+ years in distributed systems/infra; Go or Python; Kubernetes and Terraform; incident commander; cloud migrations; OpenTelemetry; Azure/AKS; on-call leadership.
Go, Python, Kubernetes, Terraform, AKS, Azure DevOps, GitHub Actions, OpenTelemetry
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Staff / Principal Software Engineer
Palo Alto, California, United States
$250k-$350k/yr OnsiteFull Time
GenBio AI
GenBio AI: Building the world’s first AI-Driven Digital Organism to simulate living systems and accelerate scientific research.
8+ YOERequires typically 8+ years of software engineering experience, Staff or Principal-level expertise, production web services, scalable APIs, distributed systems, AI/LLM/ML integration, and strong technical leadership.
APIs, LLMs
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Senior Principal Software Engineer
Seattle or Santa Clara or United States
$135k-$306k/yr OnsiteFull Time
Oracle Corporation
Oracle CorporationNYSE: ORCL: Cloud infrastructure and enterprise software solutions provider.
10+ YOE10+ years engineering experience; design and implement large-scale validation frameworks for distributed databases; root cause analysis; cross-team collaboration and technical leadership.
Oracle Cloud Infrastructure (OCI), Oracle Database
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Principal Software Engineer, Endpoint Platform
Milpitas or Vancouver
$240k-$250k/yr HybridFull Time
Saviynt
Saviynt: Private enterprise software providing AI-powered identity security and access governance for global enterprises and government institutions.
2+ YOEPrincipal-level systems software engineer with 2+ years principal experience; strong C++, Rust, or Go; deep OS internals and endpoint security knowledge; experience with EDR/XDR/DLP/PAM/PEDM, ETW/eBPF, AI-assisted development tools, and AI/agent architectures.
C++, Rust, Go, EDR, XDR, DLP, PAM/PEDM, ETW, eBPF, GitHub Copilot, Cursor, Claude Code, Windsurf, ChatGPT, CI/CD, MCP, LLM
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Principal Software Engineer
South San Francisco, California, United States
$220k-$275k/yr HybridFull Time
Natera
NateraNASDAQ: NTRA: Global leader in cell-free DNA testing and diagnostics.
10+ YOE10+ years software engineering experience; production cloud infrastructure (AWS preferred), Kubernetes, Terraform, Python/Go/Java; experience designing platforms, mentoring engineers, and shipping production software.
Claude Code, Cursor, AWS, GCP, Azure, Kubernetes, Terraform, Python, Go, Java, Groovy, Helm, Nextflow, WDL, Django, React, Airflow, Argo, Temporal, Dagster, LIMS, MCP servers
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Principal Software Development Engineer
Texas or Scottsdale or Chicago or Dallas or California
$144k-$288k/yr RemoteFull Time
CVS Health
CVS HealthNYSE: CVS: Diversified healthcare integrating retail, pharmacy, and insurance services.
12+ YOE12+ years of software engineering experience, 5+ years in senior, principal, or architect roles, full-stack expertise, distributed systems, AI/GenAI, cloud-native applications, and a bachelor's degree required.
Java, Spring Boot, Go, Golang, Node.js, Python, React, Angular, TypeScript, REST, GraphQL, Apollo Federation, gRPC, Kafka, AWS, Azure, GCP, Kubernetes, Docker, Terraform, Datadog, Prometheus, Grafana, SQL, Redis
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6d
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Principal Robotics Software Engineer
United States or Santa Clara
$174k-$305k/yr RemoteFull Time
Blue River Technology
Blue River Technology: John Deere subsidiary building computer-vision agricultural robots and intelligent machinery for farmers and other field operators.
10+ YOE10+ years of software engineering experience, including 4+ years at Principal or Staff level; expert C++ and Python; robotics frameworks and hardware integration; bachelor's, master's, or Ph.D. in a related technical field.
C++, Python, Linux, ROS, ROS 2, CyberRT, LIDAR, IMUs, GPS, RTOS, CAN, Ethernet, Isaac Sim, Gazebo, Webots, HIL, ISO 26262, IEC 61508
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Principal Software Engineer
Santa Clara or Redmond or Hillsboro
$272k-$431k/yr OnsiteFull Time
NVIDIA
NVIDIANASDAQ: NVDA: Computing platform for AI and accelerated graphics.
15+ YOEBachelor's or master's degree in computer engineering, computer science, or related field; 15+ years in system architecture and design; expertise in scalable edge systems, software/hardware interfaces, and accelerator system software.
GPU, DPU, FPGA
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3w
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Principal Software Engineer
Irvine, California, United States
$118k-$218k/yr OnsiteFull Time
Cadence Design Systems
Cadence Design SystemsNASDAQ: CDNS: Computational software provider for electronic design and system development.
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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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
Snap Inc.
Snap Inc.NYSE: SNAP: Technology focused on augmented reality and communication.
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 Engineer, Embedded Vehicle Software
Sunnyvale, California, United States
$348k-$458k/yr HybridFull Time
Wayve
Wayve: British autonomous-driving software licensing vehicle-agnostic AI Driver technology to automakers and fleet owners.
15+ YOE15+ years in software and systems engineering; expertise in embedded systems, C/C++, architecture, performance optimization, and production-scale systems; experience influencing large engineering organizations.
C++, C, Python, Rust, NVIDIA Drive, Orin, DriveOS, DriveWorks, AUTOSAR, NVIDIA, Qualcomm
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2mo
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Principal Software Engineer
San Francisco, California, United States
OnsiteFull Time
Midjourney
Midjourney: Independent research lab building generative AI software for millions of users to create images and videos.
Deep software architecture and technical leadership for complex distributed systems; strong Python and concurrency experience (asyncio, multiprocessing); observability, testing, and performance engineering skills.
Python, asyncio, multiprocessing, profiling, gRPC, protobuf, CI
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3mo
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Principal Software Engineer - Kernels
Santa Clara, California, United States
$200k-$300k/yr HybridFull Time
d-Matrix
d-Matrix: Private AI infrastructure serving data centers with inference accelerators, networking, and software.
12+ YOEMS with 12+ years or PhD with 7+ years; strong computer architecture; C/C++ and Python in Linux; experience with GPUs/AI accelerators; ML workloads; hardware-software co-design; leadership.
C/C++, Python, Linux, CUDA, TensorFlow, PyTorch, MLIR, LLVM, TVM
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Principal Software Engineer
San Francisco, California, United States
$204k-$337k/yr OnsiteFull Time
Mastercard
MastercardNYSE: MA: Global payments technology powering digital economies.
Bachelor’s or Master’s in CS/Engineering, extensive software engineering and platform architecture experience, strong Java/JVM and Spring skills, REST/microservices, cloud-native (AWS/Kubernetes), distributed systems (Hadoop/Spark/Kafka), CI/CD and leadership skills.
Java, JVM, Spring Boot, Spring MVC, Spring Security, Spring Cloud, RESTful web services, PostgreSQL, NoSQL, React, JavaScript, TypeScript, HTML, CSS, Hadoop, Spark, Kafka, AWS, PCF, Kubernetes, Docker, CI/CD, Jenkins, Git, Maven, Gradle, SonarQube
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Principal Engineer
Alabama or Arizona or Arkansas or California or Colorado or Connecticut or Florida or Georgia or Hawaii or Idaho or Illinois or Indiana or Iowa or Kansas or Kentucky or Maryland or Massachusetts or Michigan or Minnesota or Missouri or Nevada or New Hampshire or New Jersey or New Mexico or New York or North Carolina or Ohio or Oklahoma or Oregon or Pennsylvania or Rhode Island or South Carolina or Tennessee or Texas or Vermont or Virginia or Washington or Wisconsin
$210k-$262k/yr RemoteFull Time
Truepill
Truepill: A digital health and pharmacy-focused that connects patients with care providers and delivers technology-enabled diagnostics and pharmacy solutions.
10+ YOEBachelor's in CS or related; 10+ years software engineering experience with 3+ years at staff/principal level; deep expertise in AWS, PostgreSQL, Ruby on Rails, Python, TypeScript/JavaScript; experience building scalable, high-throughput systems; strong communication; U.S. work authorization required.
AWS, PostgreSQL, Ruby on Rails, Python, TypeScript, JavaScript, Slack, GSuite, Jira, HL7, FHIR, NCPDP, EHR
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