455 principal engineer jobs at 74 companies in Alpine, CA
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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
1mo
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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/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
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 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
2mo
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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
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
1mo
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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
2mo
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Principal Hardware Engineer, Optics
San Diego, California, United States
$152k-$225k/yr OnsiteFull Time
10+ YOEBachelor or higher in Electrical/Computer Science; 10-15 years (or 5-10 with advanced degrees); strong hardware design, power/signal integrity, CAD tools; lab testing experience; good collaboration and problem solving.
Allegro, OrCAD, Oscilloscope, Multimeter, Power supply, Signal analyzer
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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
1mo
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Principal Geotechnical Engineer
San Diego, California, United States
$150k-$225k/yr OnsiteFull Time
15+ YOE15+ years geotechnical engineering experience, CA professional engineer licensure, bachelor in civil engineering (master preferred), strong technical, client engagement, and leadership skills.
6d
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Principal Utilities Engineer
Oceanside, California, United States
$95k-$177k/yr OnsiteFull Time
5+ YOEBachelor's degree in engineering, 5–8 years of engineering experience, and 5+ years of utility engineering in biotech, pharmaceutical, or regulated cGMP facilities. Requires systems, validation, troubleshooting, and compliance expertise.
HVAC, P&IDs, PLC, Building Automation Systems, Siemens, RCA, FMEA, DMAIC, Six Sigma
1mo
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Principal Traffic Engineer
San Diego, California, United States
$63-$79/hr OnsiteFull Time
7+ YOE5+ MgmtBSCE, California registration as a Professional Civil Engineer or Traffic Engineer, minimum 7 years traffic engineering experience (or 12 years equivalent), and 5+ years supervising staff; experience with traffic studies, plans, and client/public-agency interactions.
HCS, Vistro, Synchro, CAD
2w
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Data Engineer, Principal
Oakland or Washington or Ohio or Missouri or California or Long Beach or Arizona or Colorado or Florida or Georgia or Maryland or Minnesota or Nevada or Oregon or El Dorado Hills or Lodi or Rancho Cordova or San Diego or Alabama or Illinois or Virginia or Wisconsin or Texas or New York
$168k-$252k/yr HybridFull Time
10+ YOE10+ years data engineering experience, bachelor's or equivalent, expertise in Data Vault 2.0/dimensional modeling/Lakehouse, SQL/Python/DBT, cloud data platforms, CI/CD, and mentoring senior engineers.
SQL, Python, DBT Cloud, DBT core, Snowflake, Synapse, Databricks, Git, Bitbucket, Jira
1mo
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Principal/Senior Principal Mechanical Engineer
Hawthorne or El Segundo or Los Angeles or Washington or San Francisco or San Diego or Seattle or London
$160k-$260k/yr OnsiteFull Time
10+ YOEBachelor's in Mechanical Engineering, 10+ years mechanical design and system integration experience in aerospace/defense, launcher design experience, CAD and FEA proficiency, electro-mechanical integration, MIL-STD familiarity, ability to obtain U.S. security clearance.
SolidWorks, NASTRAN, ABAQUS, ANSYS, COMSOL
1mo
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Principal DevSecOps Engineer
San Diego, California, United States
$155k-$200k/yr OnsiteFull Time
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.
C++, Python, Bash, Kubernetes, SELinux, SBOM, GitLab CI, Ansible, Podman, Docker, RPM, Jira, GitLab, vCenter, vSphere, ESXi, GNS3, AWS, Azure, govcloud, Kickstart, Subiquity, SAST, DAST, SCA
3w
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Principal Manufacturing Engineer
Carlsbad, California, United States
OnsiteFull Time
12+ YOEBachelor's in mechanical/industrial engineering or 12+ years equivalent, 12+ years engineering experience, Six Sigma experience desirable, GD&T and metrology knowledge, ISO9001/AS9100 experience, composites and project management experience; ITAR/secret clearance desirable.
SolidWorks
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