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34 principal software engineer jobs at 24 companies in Temecula, 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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Principal Software Engineer IS - Hybrid
Redmond or Renton or Portland or Irvine
HybridFull Time
Providence
Providence: Provides comprehensive healthcare services through hospitals, clinics, and health plans.
8+ YOEBachelor's degree in Computer Engineering, Computer Science, Mathematics, Engineering or equivalent; 8 years related software development experience; OO programming (C#, Java, Python); Git; SQL/noSQL; Agile methods; cloud tech (Azure/AWS); strong independent and collaborative work.
C#, Java, Python, Git, SQL, noSQL, Azure, AWS, Jira, TFS, Azure DevOps
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1mo
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Senior Principal Software Engineer (ONSITE)
Fort Wayne or Largo or Richardson or Ontario or Cedar Rapids
$132k-$252k/yr OnsiteFull Time
RTX
RTXNYSE: RTX: RTX provides advanced aerospace and defense systems and services.
10+ YOEU.S. citizenship and ability to obtain/maintain a DoD Secret clearance; typically requires a STEM degree and 10+ years experience (or advanced degree and 7+ years). Experience with C/C++, Java, embedded/Linux/real-time systems, DevSecOps, CI/CD, MBSE, and secure software practices.
C/C++, Java, Linux, DevSecOps, CI/CD, Scrum, SAFe, MBSE, UML, SysML, DO-178
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6d
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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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1mo
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Principal Software Engineer
Austin or Irvine or Dallas
$134k-$185k/yr HybridFull Time
Cotality
Cotality: Provides property data, analytics, and workflow intelligence solutions.
5+ YOEBachelor's in CS or related, 5+ years software development experience, strong SDLC and scalable systems experience, multi-language programming, AI-assisted development familiarity, technical leadership and strong communication.
GitHub Copilot, LLM APIs, agent frameworks, AGENTS.md, SDKs, Zoom, Microsoft Teams
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1mo
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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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2w
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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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2mo
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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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3mo
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Structural Principal Engineer
Irvine, California, United States
$113k-$175k/yr OnsiteFull Time
Cannon Corp
Cannon Corp: Engineering and surveying services for infrastructure and development.
12+ YOE3+ MgmtLead structural engineering projects; CA SE license required; 12+ years in structural analysis/design; 8+ years PM; 3+ years managing teams; proficiency in design software.
RISA, ETABS, SAFE, SAP2000, AutoCAD, Revit
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2mo
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Principal Emulation Engineer
Santa Clara or Irvine
$159k-$238k/yr OnsiteFull Time
Marvell
MarvellNASDAQ: MRVL: Designs and develops high-performance semiconductor and infrastructure solutions.
10+ YOEBS in Computer/Electrical Engineering or CS with 10+ years in verification and firmware/software; MS/PhD with 5+ years; SystemVerilog/UVM; scripting (Python/Perl); Linux; C++ and ARM assembly; networking knowledge a plus.
SystemVerilog, UVM, Python, Perl, Tcl, Shell, C++, ARM, Linux
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1mo
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Software Engineer/Principal Software Engineer – Data Analyst
Rancho Bernardo or Palmdale or San Diego
$92k-$138k/yr OnsiteFull Time
Northrop Grumman
Northrop GrummanNYSE: NOC: Develops and manufactures advanced aerospace, defense, and space systems.
2+ YOEBachelor’s or Master’s in STEM with relevant experience; strong SW development with Python/Java/C++/MATLAB; AI/ML, databases, containers, DevOps, CI/CD; active Top Secret clearance.
Python, Java, C++, MATLAB, SQL, Parquet, Neo4j, Elasticsearch, MongoDB, Kubernetes, Docker, OpenShift, Ansible, Bash, PowerShell, Puppet, Grafana, Elastic Stack, Jira, Confluence, Bitbucket
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5d
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Principal Software Developer - Full Stack (Unity, C#)
Austin or San Mateo or Carlsbad or Chicago or Eugene or Toronto
$114k-$180k/yr OnsiteFull Time
Zynga
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
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2mo
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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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3w
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Principal Systems Engineer, Air Vehicle Software
Costa Mesa, California, United States
$220k-$292k/yr OnsiteFull Time
Anduril Industries
Anduril Industries: Defense technology building autonomous military hardware and software.
15+ YOEB.S. in relevant engineering, 15+ years UAS engineering experience focused on aircraft systems, familiarity with MIL/ARP/DO standards, SysML and model-based systems engineering, experience with subsystem software requirements, and active U.S. Secret clearance.
SysML, Cameo MagicDraw, Teamwork Cloud, Lattice OS, DoDAF, UAFP
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1mo
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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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2mo
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Principal Mobile Engineer
Carlsbad, California, United States
$160k-$180k/yr OnsiteFull Time
Nice North America
Nice North America: Manufacturer of smart home and building automation systems.
8+ YOE8+ years in mobile app development (iOS/Android) with React Native, quality code, and cross-region collaboration.
React Native, iOS, Android, AWS, Jira, Confluence, Bitbucket, Figma, Sentry, CI/CD
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3w
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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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2d
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Principal Systems Engineer (Console System)
Carlsbad or Arden Hills or Maple Grove
$107k-$203k/yr OnsiteFull Time
Boston Scientific
Boston ScientificNYSE: BSX: Manufacturer of interventional medical devices and technologies.
7+ YOEBachelor's in engineering,7+ years engineering experience,5+ years technical leadership,systems engineering for multidisciplinary hardware/software medical devices,requirements and verification expertise,experience with regulated Design Controls.
Jama, DOORS, Requisite Pro, Jira, MATLAB, Python, LabVIEW, Minitab, Ethernet, RS232, SPI, I2C, CAN
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5d
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Principal Systems Engineer (Console System)
Carlsbad or Arden Hills or Maple Grove
$107k-$203k/yr OnsiteFull Time
Boston Scientific
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.
Jama, DOORS, Requisite Pro, Jira, MATLAB, Python, LabVIEW, Minitab
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2w
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Principal Engineer - AI/ML
Frisco or San Jose or Newport Beach or New York or Toronto or Waterloo
$172k-$283k/yr HybridFull Time
McAfee
McAfee: Provides consumer cybersecurity, identity protection, and online privacy software.
10+ YOE10+ years software development experience with technical leadership; expertise in cloud-native architecture, agentic AI/ML, full-stack development, distributed systems, Kubernetes, and modern cloud platforms.
Python, Java, Go, Rust, C++, JavaScript, TypeScript, Dart, React, Flutter, gRPC, protobuf, AWS, Azure, GCP, Docker, Kubernetes, Helm, ArgoCD, Calico, OPA, Istio, Linkerd, eBPF, Cilium, Data Bricks, Snowflake, BigQuery, Spark, Hadoop, Kafka, GitHub Copilot, Claude Code, Claude, ChatGPT
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2d
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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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