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30 principal software engineer jobs at 21 companies in Colton, CA

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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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3w
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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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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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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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3mo
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Principal Engineer Software - Storage (Chronosphere)
Burbank or Denver or Chicago or Austin or Jacksonville or Hartford or Bridgeport or Seattle or Boston or New York City
$147k-$238k/yr RemoteAll Commitments Available
Palo Alto Networks
Palo Alto NetworksNASDAQ: PANW: Provides enterprise-grade network, cloud, and endpoint security software.
Design and build scalable backend services for high-volume telemetry data; strong backend skills; cloud infra experience; API design; mentorship.
Go, Java, Python, Rust, AWS, GCP, Azure, REST, gRPC, GraphQL
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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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Principal, Software Engineer - Subscriptions
Irvine, California, United States
$133k-$227k/yr HybridFull Time
Ingram Micro
Ingram MicroNYSE: INGM: Distributes information technology products and provides supply chain solutions.
10+ YOE10-15 years technical experience; 5+ years web services development; strong Java 8+; REST APIs; Spring Boot; JPA/Hibernate/JDBC; Maven; Git; Agile tools; GCP; DevOps mindset; front-end options like Python/NodeJS a plus
Java, Spring Boot, JPA/Hibernate, JDBC, JUnit, Maven, SonarQube, Git, SVN, JIRA, Confluence, XML, JSON, SOAP, REST, GCP, Splunk, DataDog, Python, Node.js, Bootstrap, Material-UI
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Principal Software Engineer - DevSecOps Embedded Communications - Active Secret (Onsite)
Cedar Rapids or Morrisville or Fullerton or Fort Wayne or El Segundo
$108k-$205k/yr OnsiteFull Time
RTX
RTXNYSE: RTX: RTX provides advanced aerospace and defense systems and services.
8+ YOEExpert in DevSecOps for embedded systems; CI/CD, containerization, IaC, security testing, and embedded networking.
GitLab, GitLab Runners, Docker, Kubernetes, Linux, JFrog Artifactory
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Principal Engineer - DeviceOS
Seattle or Costa Mesa
$253k-$336k/yr OnsiteFull Time
Anduril Industries
Anduril Industries: Defense technology building autonomous military hardware and software.
15+ YOERequires 15+ years building automated verification suites, 5+ years with NixOS, declarative package management, and virtualization; embedded systems experience and technical leadership. Bachelor's degree or equivalent preferred.
Nix, NixOS, C++, AWS, Microsoft Azure, Google Cloud Platform (GCP), Docker, Kubernetes, Jetpack, Lattice, HITL
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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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Principal Engineer - FullStack – Catalog
Irvine, California, United States
$130k-$135k/yr OnsiteFull Time
Tech Mahindra
Tech MahindraNational Stock Exchange of India: TECHM: Global provider of information technology and business process services.
12+ YOEBachelor's degree required; 12+ years software engineering with principal-level leadership, expertise in backend languages and modern frontend frameworks, high-scale distributed systems, and AI-assisted development.
C#/.NET, Go, Java, Python, React, Copilot, Claude Code, Cursor
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2w
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Senior Principal Algorithm Software Systems Engineer
Cypress, California, United States
$150k-$234k/yr OnsiteFull Time
Leonardo DRS
Leonardo DRSNASDAQ: DRS: Manufactures advanced electronic systems for defense and military applications.
10+ YOE10+ years experience with detection/tracking algorithms, Kalman filtering expertise, proficiency in Julia/C++/Python/MATLAB, simulation experience, BS degree in relevant field, U.S. citizenship and ability to obtain DOD clearance.
Julia, C++, Python, MATLAB
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1mo
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Principal Engineer, CoCounsel
Eagan or Frisco or New York City or Toronto or Ann Arbor or San Francisco or Los Angeles or Irvine or McLean or Washington
$159k-$295k/yr HybridFull Time
Thomson Reuters
Thomson ReutersNASDAQ: TRI: Provides professional software, data, and news services globally.
Bachelor's degree (or equivalent) in CS or CE, deep Python and distributed systems experience, hands-on AI/LLM and agent experience, FastAPI/PostgreSQL/AWS familiarity, identity/IAM (SAML, OIDC, OAuth 2.0) expertise, strong communication.
Python, FastAPI, PostgreSQL, AWS, SSO, SAML, OIDC, OAuth 2.0, RBAC, ABAC, Anthropic, OpenAI, LLMs, MCP servers, vector databases, embeddings, semantic search
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1w
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Sr. Principal Application Engineer
Irvine or San Jose
$175k-$225k/yr OnsiteFull Time
Celero Communications
Celero Communications: Developing high-performance coherent DSP technology for AI connectivity.
8+ YOE8+ years experience in DSP/optical communications, bachelor’s (or higher) in engineering/physics, ability to travel 25–40%, strong DSP and optics fundamentals, hardware/software debugging, documentation and customer-facing communication skills.
Python, MATLAB
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Principal Engineer
Irvine, California, United States
$200k-$230k/yr OnsiteFull Time
Veritone
VeritoneNASDAQ: VERI: Provider of artificial intelligence software and media analytics platforms.
10+ YOE10+ years building distributed, high-performance systems; experience with Nodejs/Go and production deployments; writing maintainable code with tests; mentoring teams and shaping architecture.
Nodejs, Golang, JavaScript, Node.js, Go, React.js, ElasticSearch, NSQ, GraphQL, Postgres
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1mo
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Systems Principal Automation Engineer (50255)
Monrovia, California, United States
$155k-$195k/yr OnsiteFull Time
AMADA WELD TECH
AMADA WELD TECH: Manufactures precision welding, marking, and automation equipment.
10+ YOERequires 10+ years in software architecture and controls engineering, 5+ years in machine vision/AI, C#/.NET and Rockwell Studio 5000 expertise, experience with SCADA/HMI, PLC/CNC integrations, and a STEM bachelor's degree.
PyTorch, TensorFlow, OpenCV, HALCON, FactoryTalk, FactoryTalk View, MQTT, WinForms, WPF, .NET, Azure DevOps, Studio 5000 Logix Designer, RSLogix 500, RSLogix 5000, OPC-UA, Modbus TCP, TCP/IP, Serial, PLC, CNC
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Sr. Principal Architect - Connectivity
Irvine, California, United States
$205k-$343k/yr HybridFull Time
Panasonic Avionics Corporation
Panasonic Avionics CorporationTokyo Stock Exchange: 6752: Provides in-flight entertainment and connectivity systems for airlines.
15+ YOEBachelor's in CS/Engineering (advanced degree preferred), 15+ years software development, systems/solution architecture experience, expertise in low-latency systems, C++, Java, Go, cloud platforms, SATCOM/connectivity background.
C++, Java, Go, AWS, Azure, Google Cloud Platform, Git, SVN
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3w
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Principal Engineer, Agentic AI Data and Insights
Irvine or San Jose
$307k-$428k/yr OnsiteFull Time
Google
GoogleNASDAQ: GOOGL: Provides online search, advertising, cloud computing, and consumer electronics.
15+ YOEBachelor's degree or equivalent and 15 years software engineering experience; senior technical leadership, large-scale distributed systems, architectural design, and experience with agentic AI and large-scale data platforms.
Iceberg, Spark, GoogleSQL, ANSI SQL, Plx, Jetski
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Manager, Software Engineering - Medical Devices
Irvine, California, United States
$132k-$190k/yr HybridFull Time
ZOLL Medical
ZOLL Medical: Manufactures medical devices and software for emergency care.
5+ YOE5+ MgmtBS in CS/CE required; 5 years as senior/principal engineer and 5 years managing software teams; experience leading software development, project management, and strong leadership; Scrum and medical device experience preferred.
Scrum
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Sr. Principal Architect - Connectivity
Irvine, California, United States
$205k-$343k/yr OnsiteFull Time
Panasonic North America
Panasonic North AmericaTokyo Stock Exchange: 6752: Develops and manufactures electronics for consumer and industrial sectors.
15+ YOEBachelor's in Computer Science/Engineering required (advanced degree preferred). 15+ years software experience, systems/solution architecture, connectivity/SATCOM/IFC experience, expertise in low-latency systems, C++, Java, Go, cloud platforms, and strong leadership.
C++, Java, Go, AWS, Azure, Google Cloud Platform, Git, SVN
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