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417 principal engineer jobs at 69 companies in Lancaster, CA

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Principal Engineer
Pasadena, California, United States
$157k-$196k/yr OnsiteFull Time
City of Pasadena
City of Pasadena: Providing municipal services and public programs to the Pasadena community.
Lead water resources engineering division, manage capital projects, regulatory compliance, collaborate with regional agencies, and provide technical leadership for long-term water reliability.
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3mo
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Principal Infrastructure Engineer
Los Angeles, California, United States
$250k-$320k/yr OnsiteFull Time
Hadrian
Hadrian: Building autonomous factories for aerospace and defense manufacturing.
15+ YOE10-15+ years infra/platform engineering; Terraform/IaC; Kubernetes; cloud, edge, networking; security; mentoring.
AWS, Terraform, OpenTofu, Kubernetes, EKS, K0s, K3s, GitHub Actions, ArgoCD, Helm, CUE, Prometheus, Grafana, Datadog
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Principal / Senior Principal Reliability Engineer
Woodland Hills, California, United States
$104k-$194k/yr OnsiteFull Time
Northrop Grumman
Northrop GrummanNYSE: NOC: Develops and manufactures advanced aerospace, defense, and space systems.
5+ YOEU.S. citizen able to obtain Secret clearance; bachelor’s in electrical engineering or related STEM with 5+ years (Principal) or 8+ years (Senior Principal) RMT experience; FMEA/FMECA, RMT analyses, schematic familiarity.
PTC Windchill Quality Solutions
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Principal Platform Engineer
Los Angeles, California, United States
$170k-$190k/yr OnsiteFull Time
First Resonance
First Resonance: Software platform for tracking and managing complex hardware manufacturing.
8+ YOE8+ years software engineering; experience building high-availability backend services; strong distributed systems; leadership of large technical initiatives; excellent written and verbal communication.
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Sr Principal Systems Engineer
Los Angeles, California, United States
$142k-$178k/yr OnsiteFull Time
Northrop Grumman
Northrop GrummanNYSE: NOC: Designs and manufactures advanced aerospace and defense systems.
8+ YOERequires BS in engineering +8 years (or MS +6 yrs) systems engineering experience, Secret clearance, production experience, DOORS/CAMEO experience, root cause analysis, team leadership, and strong communication skills.
DOORS, CAMEO, TipQA, Acceptance Test Procedure (ATP), Earned Value Management System (EVMS)
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Principal Engineer, Architecture
Glendale, California, United States
$320k-$380k/yr OnsiteFull Time
Moon
Moon: Building an AI-powered SaaS platform for business operations.
12+ YOE12+ years engineering experience with staff/principal scope; expertise in distributed systems, data modeling, API design, security; strong mentorship and technical writing skills.
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Principal Civil Engineer- Land Development
Glendora, California, United States
$120k-$145k/yr OnsiteFull Time
City of Glendora
City of Glendora: Providing municipal governance and community services to Glendora residents.
5+ YOESupervise land development engineering, review plans and permits, manage projects and budgets, prepare reports, present to City Council; requires CA PE, bachelor\u0002s in civil engineering, and five years progressive public works experience.
AutoCAD, ArcView GIS, Geographical Information Systems (GIS), Microsoft Office
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Principal Mechanical Engineer - Launcher Systems
Los Angeles, California, United States
$180k-$230k/yr OnsiteFull Time
Hikinex
Hikinex: Provider of outsourced sales and administrative business solutions.
10+ YOE10+ years in aerospace/defense mechanical design and system integration; BS in Mechanical Engineering; launcher systems experience; US citizenship and ability to obtain security clearance.
SolidWorks, CAD
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Principal Integration & Test Engineer
Los Angeles, California, United States
$175k-$200k/yr OnsiteFull Time
K2 Space
K2 Space: Develops high-power satellite platforms for heavy-lift launch vehicles.
8+ YOEBachelor’s in engineering; 8+ years in integration/test/automation; spacecraft testing; environmental testing; Linux; Python or Rust; manage contractual interfaces.
Python, Rust, Linux, Oscilloscope, DMM, PSU, Environmental test equipment, HITL, HWIL, Flatsat
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Principal Engineer
La Cañada Flintridge, California, United States
$153k-$188k/yr OnsiteFull Time
City of La Cañada Flintridge
City of La Cañada Flintridge: Municipal government serving the City of La Cañada Flintridge.
6+ YOE3+ MgmtBachelor's in civil engineering, six years municipal public works/civil engineering project management including three years supervisory experience; CA Professional Engineer registration and valid California driver license required; experience with CIP, budgeting, contracts, and construction management.
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Principal Research & Development (R&D) Engineer
Los Angeles or Irvine or Illinois or United States
$180k-$250k/yr HybridFull Time
Motorola Solutions
Motorola SolutionsNYSE: MSI: Provides mission-critical communications and public safety technology.
10+ YOE5+ MgmtMS or PhD in electrical/computer engineering; 10+ years wireless systems; 5+ years technical leadership; U.S. citizenship; background check/drug test.
C/C++, MATLAB, Python
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Associate Principal/Principal, Building Technology
Los Angeles, California, United States
$214k-$273k/yr OnsiteFull Time
Simpson Gumpertz & Heger
Simpson Gumpertz & Heger: Engineering firm specializing in structural design and building enclosures.
15+ YOEBachelor's degree in architecture, engineering, or architectural engineering; 15+ years' experience; California PE or RA required; complex project leadership, business development, client management, mentoring, communication, and travel required.
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Principal Noise Consultant
Cambridge or Philadelphia or Fairfax or Los Angeles or Chicago or Houston or Charlottesville or Huntsville
$115k-$145k/yr HybridFull Time
Acentech
Acentech: Provides acoustics, vibration, and audiovisual consulting for buildings.
5+ YOESenior- to principal-level acoustics consultant with 5+ years in environmental noise; degree in engineering/science with acoustics/vibration focus; strong project management, communication, and field/measurement experience.
CadnaA
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Senior to Principal Mechanical Engineer (Maritime)
Los Angeles, California, United States
$140k-$220k/yr OnsiteFull Time
Odin Dynamics
Odin Dynamics: Developing autonomous underwater vehicles for defense and maritime missions.
6+ YOEB.S. or M.S. in relevant engineering, 6+ years (Senior) or 10+ years (Principal) mechanical design experience, expertise in pressure-loaded structural design, CAD and FEA proficiency, prototyping/test experience, and U.S. citizenship with ability to obtain security clearance.
CAD, FEA
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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
CHAOS Industries
CHAOS Industries: Develops advanced radar and sensing systems for modern defense.
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
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3w
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Principal Engineer
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.
Expertise in identity and access management, distributed systems, and AI/LLM integration; deep Python experience; cloud (AWS) and relational DB (PostgreSQL); strong communication and architecture ownership skills.
Python, FastAPI, PostgreSQL, AWS, Okta, Auth0, Entra ID/Azure AD, AWS Cognito, Anthropic, OpenAI, vector databases, SAML, OIDC, OAuth 2.0, RBAC/ABAC, MCP, LLMs
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2mo
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Principal Software Engineer
San Diego or Valencia
$107k-$203k/yr HybridFull Time
Boston Scientific
Boston ScientificNYSE: BSX: Developer and manufacturer of innovative medical devices and therapies.
8+ YOE8+ years Android app development; 2+ years in medical devices; Kotlin/Java; AWS; IEC 62304/ISO 13485/FDA design controls; strong cross-functional collaboration.
Kotlin, Kotlin Multiplatform, Java, Android Jetpack, BLE, AWS, OAuth, Git, Jenkins, SonarQube, Atlassian Agile tools, API Gateway, Cognito, DynamoDB, S3, EC2, KMS, REST
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Principal Electrical Engineer
Los Angeles, California, United States
$126k-$188k/yr OnsiteFull Time
MiniMed Group
MiniMed GroupNasdaq: MMED: A medical device focused on diabetes technology and patient care.
7+ YOEBachelor's degree; 7+ years experience or 5+ years with advanced degree; hands-on electrical engineering in regulated environments.
Electrical design, Troubleshooting, Test systems, Regulatory compliance (FDA QSR, ISO 13485)
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2mo
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Associate Principal/Principal for Education and Civic Practice
Orange or Los Angeles or San Francisco
$176k-$220k/yr HybridFull Time
Degenkolb Engineers
Degenkolb Engineers: Specializes in structural engineering and earthquake-resistant building design
10+ YOEBachelor's in civil/structural engineering, CA civil engineering license required (structural license preferred), 10+ years progressive structural/seismic experience, client development and staff leadership, MS preferred.
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Principal Geotechnical Engineer
Los Angeles or Lakewood
$150k-$200k/yr OnsiteFull Time
Atlas Technical Consultants
Atlas Technical Consultants: Provider of infrastructure and environmental engineering and testing services.
10+ YOEBachelor's in civil engineering (master's preferred), PE in Colorado, minimum 10 years geotechnical experience, local practice familiarity, construction oversight experience, strong communication and mentoring skills.
slope stability packages, pile modeling tools, site response software
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