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55 principle developer jobs at 36 companies in Orange, CA

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Principle Mechanical Engineer
Playa Vista or Santa Monica or Los Angeles
$210k-$235k/yr OnsiteFull Time
Outpost Space
Outpost Space: Building reusable spacecraft for precision Earth return and logistics.
8+ YOEBachelor's in Mechanical/Aerospace/Structural Engineering, 8+ years designing and analyzing full space vehicles, expert-level CAD and FEA experience, materials and manufacturing fluency, and mentorship experience.
ANSYS, FEMAP, NASTRAN, Siemens NX, SolidWorks, Python, MATLAB, CNC
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1w
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Program Chief Engineer (Principle or Senior)
El Segundo, California, United States
$177k-$285k/yr OnsiteFull Time
Boeing
BoeingNYSE: BA: Designs and manufactures commercial airplanes, defense systems, and space technology.
10+ YOEBachelor's in engineering (or equivalent),10+ years space-systems engineering experience, program startup and baselining, risk and issue management, supplier management, RCCA, customer engagement, and leadership of multidisciplinary teams; must be a U.S. Person.
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Principal Engineer Circuit Design /Senior Principle Engineer Circuit Design
Manhattan Beach or Redondo Beach
$114k-$171k/yr OnsiteFull Time
Northrop Grumman
Northrop GrummanNYSE: NOC: Designs and manufactures advanced aerospace and defense systems.
5+ YOEBachelor's in STEM plus 5+ yrs (Principal) or 8+ yrs (Senior) engineering experience; analog/power circuit design; PSpice/Simplis/Simetrix/LTSpice and MathCAD proficiency; control systems knowledge; ability to obtain Top Secret/SSBI/SCI clearance.
PSpice, Simplis, Simetrix, LTSpice, MathCAD, Earned Value Management Systems
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Principal Engineer Circuit Design /Senior Principle Engineer Circuit Design
Manhattan Beach or Redondo Beach
$114k-$171k/yr OnsiteFull Time
Northrop Grumman
Northrop GrummanNYSE: NOC: Develops and manufactures advanced aerospace, defense, and space systems.
5+ YOEBachelor's degree in STEM with 5+ years (or advanced degree with fewer years), experience designing and testing analog and power circuits, proficiency with PSpice/Simplis/Simetrix/LTSpice and MathCAD, knowledge of control systems, and ability to obtain Top Secret/SCI clearance.
PSpice, Simplis, Simetrix, LTSpice, MathCAD, Earned Value Management Systems
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Systems Engineer – Algorithms (ONSITE)
Fullerton, California, United States
$76k-$144k/yr OnsiteFull Time
RTX
RTXNYSE: RTX: RTX provides advanced aerospace and defense systems and services.
2+ YOEProficiency in MATLAB and Simulink; knowledge of software development principles; STEM degree with 2+ years experience; ability to obtain SECRET clearance.
MATLAB, Simulink
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Manufacturing Engineer (CA, Fullerton)
Fullerton, California, United States
OnsiteFull Time
Hydraflow
Hydraflow: Designs and manufactures fluid transfer components for the aerospace industry.
Develop and improve manufacturing processes, apply lean and 5S principles, ensure GMP and regulatory compliance, analyze workflow and costs, design testing methods, and produce process reports.
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Front-End/UI Engineer – Egofold (Junior to Mid-Level)
Culver City, California, United States
$100k-$150k/yr HybridFull Time
Snail Games
Snail GamesNasdaq: SNAL: Develops and publishes interactive video game entertainment.
Proficiency with modern front-end frameworks (React, Vue), JavaScript/TypeScript, frontend architecture, UX principles, and experience with real-time or interactive systems.
React, Vue, JavaScript, TypeScript
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5d
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SATCOM System Integration and Test Systems Engineering SME - Principle
El Segundo, California, United States
$151k-$301k/yr OnsiteFull Time
Lockheed Martin
Lockheed MartinNYSE: LMT: Designs and manufactures global security and aerospace systems.
10+ YOEBachelor's in engineering or equivalent,10+ years systems engineering experience with SATCOM and systems integration and test, RF/digital communications exposure, active Secret clearance and US citizenship required.
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Mechanical Engineer
Hawthorne, California, United States
$90k-$140k/yr OnsiteFull Time
Freeform
Freeform: Deploys autonomous AI-powered metal 3D printing factories.
2+ YOEBachelor's in mechanical or aerospace engineering; 2+ years in full lifecycle mechanical design; strong first-principles problem solving.
NX, CAD, 3D printing, FEM, manufacturing
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Senior Systems Engineer
Torrance, California, United States
$135k-$185k/yr OnsiteFull Time
Valar Atomics
Valar Atomics: Developing scalable, high-temperature, grid-independent advanced nuclear power systems.
4+ YOEBachelor's in engineering, 4+ years systems engineering, strong systems engineering principles, multidisciplinary experience, EMR not mentioned, analytical and communication skills.
IBM Rhapsody 10.0 (SysML 1.x), DOORS, Jama, SysML, UML, Claude
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2d
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Train Engineer
Buena Park, California, United States
$20/hr OnsitePart Time
Six Flags Entertainment Corporation
Six Flags Entertainment CorporationNYSE: FUN: Operates theme parks and water parks in North America.
2+ YOEMust be 18+, 2+ years mechanical maintenance experience, HS diploma/GED, knowledge of mechanical principles and pneumatic/hydraulic systems, able to work at height and pass background check.
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Assistant Engineer - Land Development
Fontana, California, United States
$8k-$9k/mo OnsiteFull Time
City of Fontana
City of Fontana: Provides municipal services and public safety for Fontana residents.
1+ YOEBachelor's in civil engineering (or equivalent), some related engineering experience preferred (1 year preferred), knowledge of civil engineering principles, ability to review plans and prepare reports, valid CA Class C driver’s license required.
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Application Engineer
Santa Ana, California, United States
$75k-$85k/yr OnsiteFull Time
HEICO
HEICONYSE: HEI: Manufactures specialty electronic components and niche aircraft parts.
1+ YOEBachelor's in STEM (or equivalent), 1+ year customer service and technical sales experience, ability to interpret electrical schematics, apply engineering principles to sales, strong communication, Microsoft Office and Salesforce proficiency, willingness to travel (~5%).
Microsoft Word, Microsoft Excel, Microsoft Outlook, Microsoft PowerPoint, Microsoft Project, Salesforce
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1mo
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Mechanical Engineer, Production
Costa Mesa, California, United States
$129k-$171k/yr OnsiteFull Time
Anduril Industries
Anduril Industries: Defense technology building autonomous military hardware and software.
2+ YOEDesign ownership, BOM/drawings in PLM, CAD proficiency, engineering first principles, 2+ yrs mechanical exp, BS in engineering, US person status, RCA/PCA experience.
NX, Teamcenter, CAD, PLM, BOM
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2w
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Manufacturing Engineer - Intern
Santa Ana, California, United States
OnsiteMultiple Commitments Available
Regal Technology Partners: Manufacturer of mission-critical electronic systems for aerospace and defense.
Currently pursuing a Bachelor's in engineering, knowledge of manufacturing processes and lean principles, proficiency with Microsoft Office, strong analytical and problem-solving skills, ability to stand and lift up to 25 lbs.
Microsoft Excel, Microsoft Word, Microsoft PowerPoint
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1d
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Sr Quality Engineer (Aerospace)
Torrance, California, United States
$95k-$117k/yr OnsiteFull Time
Howmet Aerospace
Howmet AerospaceNYSE: HWM: Manufactures high-performance metal components for aerospace and transportation.
6+ YOEBachelor's in STEM, minimum 6 years quality experience in production/manufacturing, US work authorization required, experience with root cause analysis and quality engineering principles.
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1mo
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Entry-Level Engineer
Pleasanton or Sacramento or Millbrae or Sherman Oaks or Los Angeles or Irvine or Temecula or San Diego
$74k-$94k/yr OnsiteFull Time
The Whiting-Turner Contracting Company
The Whiting-Turner Contracting Company: Construction contractor providing engineering and construction services.
0+ YOEBachelor of Science in an engineering discipline; knowledge of engineering principles; ability to read technical specs and manage costs; proficient in MS Office; construction project experience.
Microsoft Project, Primavera, Suretrak, Microsoft Office Suite, Excel, Word
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1mo
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Staff Vehicle Engineer
Playa Vista, California, United States
$161k-$221k/yr OnsiteFull Time
Inversion Space
Inversion Space: Building autonomous re-entry vehicles for global space-to-Earth cargo delivery.
8+ YOEBachelor's in relevant engineering or equivalent experience, typically 8+ years in aerospace vehicle design and integration; proficiency in CAD; strong first-principles background across structures, thermal, avionics, GNC; excellent communication.
CAD
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2mo
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Systems Security Engineer (SSE)
Hudson or Phoenix or Huntsville or Cypress or West Lafayette or Andover or Chantilly or Gainesville
OnsiteFull Time
Mercury Systems
Mercury SystemsNASDAQ: MRCY: Provides secure processing solutions for aerospace and defense missions.
6+ YOEBS in STEM; 6+ years in systems engineering; SSE principles; DoD security; anti-tamper; DoD Secret clearance required.
Jama, Confluence, Jira, Bitbucket, Cameo Enterprise Architect, MBSE tools
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1mo
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New Grad Civil Engineer I
Los Angeles, California, United States
$76k-$115k/yr OnsiteFull Time
HNTB
HNTB: Infrastructure design and engineering for transportation and public works
Bachelor's degree in Engineering required. Familiarity with engineering principles, Microsoft Office, MicroStation and/or AutoCAD. EIT certification and civil engineering internship experience preferred.
Microsoft Office Suite, MicroStation, AutoCAD
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