581 principal engineer jobs at 121 companies in Bonsall, CA
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Principal Engineer
Eastvale, California, United States
$155k-$193k/yr OnsiteFull Time
4+ YOE3+ MgmtBachelor’s in Civil Engineering, CA Professional Engineer (PE) registration, 4+ years civil engineering experience including public works, and 3 years supervisory experience; experience managing CIP projects and federal funding processes.
2mo
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Principal / Sr Principal Engineer Aeronautical - VMS Hardware Avionics Lead
San Diego or Rancho Bernardo
$114k-$213k/yr OnsiteFull Time
5+ YOESTEM degree with 5+ yrs (Bachelor); 3 yrs with Master; PhD with no experience for Principal; 8+ yrs for Sr Principal; ability to obtain US Secret clearance; MATLAB; MS Office; avionics hardware experience.
MATLAB, Python, Microsoft Office, Visio
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Principal Environmental Engineer
San Diego or Concord or Knoxville or Denver or Norfolk or Canton
$175k-$225k/yr RemoteFull Time
15+ YOEMaster's in Environmental Engineering, PE license, 15+ years environmental engineering experience (DoD/CERCLA), leadership experience on federal remediation projects, ability to travel, strong verbal and written communication.
2mo
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Principal Applications Engineer
Austin or San Jose or San Diego
OnsiteFull Time
12+ YOEBachelor's degree in Electrical/Electronic Engineering; 12+ years hardware design or applications engineering; experience with high-speed SerDes, Ethernet, PCIe, DP/USB; strong SI/PI; hands-on lab skills.
Oscilloscopes, TDR, VNA, BERT, Protocol Analyzers, Logic Analyzers, S-parameter analysis, Eye/Jitter simulations
3mo
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Principal Engineer - Safety & Reliability
Irvine, California, United States
$121k-$211k/yr OnsiteFull Time
12+ YOEBachelor’s in Engineering; 12+ years in system safety & reliability; SAE ARP4761, MIL-STD-882E knowledge; strong communication; motion control experience preferred.
SAE ARP4761, SAE ARP4754, MIL-STD-882E, RTCA DO-178, RTCA DO-254, RTCA DO-160, ISO-9000/9001, MIL-STD-810, MIL-HDBK-217F, MIL-HDBK-217 Plus, MIL-HDBK-472, MIL-STD-461, MIL-STD-1629
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Principal/Sr Principal Airworthiness Engineer
San Diego, California, United States
$114k-$171k/yr HybridFull Time
5+ YOESTEM degree with 5+ years (Principal) or 8+ years (Sr Principal) related experience; systems/design engineering background; familiarity with MIL-HDBK-516B/C; ability to obtain DoD Secret clearance and Special Program Access (PAR).
Control Account Management (CAM), Earned Value Management System (EVMS), Integrated Master Schedule (IMS), MIL-HDBK-516B, MIL-HDBK-516C
1d
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Principal Engineer- Optics Manufacturing Integration
Vista or San Diego or Santa Clara or Colorado Springs
$159k-$250k/yr OnsiteFull Time
15+ YOERequires a bachelor's degree in engineering or related field, 15+ years in optoelectronic or microelectronics manufacturing, process development, technology transfer, and automated manufacturing tools.
DOE, FMEA, Six Sigma
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Principal Engineer- Optics Manufacturing Integration
Vista or San Diego or Santa Clara or Colorado Springs
$159k-$250k/yr OnsiteFull Time
15+ YOEBachelor's degree in engineering or materials science and 15+ years in optoelectronic or microelectronics manufacturing, including process development, assembly, technology transfer, and automated tools.
DOE, FMEA, Six Sigma
1d
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Principal Engineer- Optics Manufacturing Integration
Vista or San Diego or Santa Clara or Colorado Springs
$159k-$250k/yr OnsiteFull Time
15+ YOEBachelor's degree in engineering or related field, 15+ years in optoelectronic or microelectronics manufacturing, process development, technology transfer, and automated manufacturing tools; US citizenship or green card required.
Design of Experiments (DOE), Failure Mode and Effects Analysis (FMEA), Six Sigma
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Systems Engineer Principal - MBSE
San Diego, California, United States
OnsiteFull Time
5+ YOEMBSE and systems engineering experience, TS/SCI clearance, ability to coordinate with stakeholders, and strong communication skills.
MBSE, SysML, UPDM, BPMN, UAF, CAMEO Enterprise Architect, Team Work Cloud, Gitlab
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Senior Principal Test Engineer
Irvine, California, United States
$162k-$240k/yr OnsiteFull Time
15+ YOE5+ Mgmt15+ years test engineering experience for NPI, 5+ years leading teams, PMIC/IVR testing expertise, ATE hardware/test development, Java/C/C++, Python, Advantest V93000 and pattern/DFT knowledge.
Advantest V93000, SmarTest8, Teradyne UltraFLEX, IG-XL, ATE Test Systems, Design-for-Test (DFT), Java, C/C++, Python, SVN, Git
4w
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Senior Principal System Engineer
San Diego, California, United States
$193k-$220k/yr OnsiteFull Time
10+ YOEFour-year degree in computer/electrical/related field plus 12 years' experience or master's plus 10; active DoD security clearance; strong systems engineering, RF and secured comms experience; DOORS/EPDM/AllChange familiarity.
DOORS, EPDM, AllChange
2mo
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Principal Optical Manufacturing Engineer
Irvine, California, United States
$115k-$180k/yr OnsiteFull Time
5+ YOELead manufacturing methods for optics; 5+ years in optics fabrication/metrology; BS in Engineering/Physics; travel up to 5%.
ZeMax, Python, Matlab, Optical Metrology, Fizeau Interferometer
3mo
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Principal Customer Service Engineer
Livonia or Irvine
$92k-$172k/yr OnsiteFull Time
7+ YOE7-10 years multiphysics CAE tools, Python, project management, strong communication; US citizen or green card; mechanical engineering degree.
Nastran, Ansys, Abaqus, Python, XML, JSON, Patran, DMAP, MSC Software, Apex, EPILYSIS, META, Actran, Cradle, Dytran, Simufact, BETA CAE
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Efficient AI Systems, Principal Engineer (On-Device/Edge)
San Diego, California, United States
$207k-$310k/yr OnsiteFull Time
6+ YOEAdvanced degree in engineering/computer science and 6–8+ years systems engineering experience; strong ML, deep learning, vision/ LiDAR, model quantization, and deployment experience on resource-constrained devices; leadership and cross-functional collaboration skills.
Vision Transformers, Cross Attention, Self-Attention, LLM, VLM, VLA, BEV, Snapdragon Ride, SoC
3mo
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Sr. Principal Systems Engineer
Irvine, California, United States
$125k-$206k/yr OnsiteFull Time
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
2mo
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Principal Design Verification Engineer (Silicon Engineering)
Sunnyvale or Austin or Irvine or Redmond
$210k-$310k/yr OnsiteFull Time
10+ YOEBachelor’s in electrical/computer engineering or computer science; 10+ years in design verification and test bench development.
UVM, OVM, VMM, Python, RTL
3mo
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Principal Engineer, Algorithm - ECG
Irvine, California, United States
$170k-$215k/yr OnsiteFull Time
12+ YOE12+ years ECG algorithm development; deep ECG signal processing and statistical modeling; strong C/C++, MATLAB, Python; experience with large clinical datasets; onsite in Irvine.
C/C++, MATLAB, Python, ECG signal processing, Digital signal processing
2mo
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Systems Engineer Principal - MBSE
San Diego, California, United States
$120k-$160k/yr OnsiteFull Time
5+ YOEMBSE experience with SysML; TS/SCI clearance; degree with years of experience; experience with CAMEO, GitLab; strong communication and stakeholder collaboration.
SysML, UPDM, BPMN, UAF, CAMEO, Enterprise Architect, Team Work Cloud, GitLab
1w
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Principal Machine Learning Engineer
San Diego, California, United States
$216k-$378k/yr OnsiteFull Time
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.
ServiceNow, MCP, A2A, ITSM, CMDB, GRC, DevOps, CI/CD, LLM, RAG
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