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37 principle developer jobs at 27 companies in Riverside, 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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1mo
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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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1w
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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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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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1w
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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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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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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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3mo
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Lead/Staff Electrical Engineer (Hardware Design)
Hawthorne or Los Angeles
$160k-$220k/yr OnsiteFull Time
Freeform
Freeform: Deploys autonomous AI-powered metal 3D printing factories.
10+ YOEBachelor's degree in electrical or computer engineering; 10+ years hardware design experience; strong first-principles problem solving; prior technical lead experience.
FPGA, GPU, Embedded systems, High-speed data acquisition, Lab equipment
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Environmental Engineer 1 (Water Services)
Irvine, California, United States
$65k-$107k/yr OnsiteFull Time
CDM Smith
CDM Smith: Engineering and construction firm for global infrastructure projects.
0+ YOEBachelor's in engineering (Civil, Environmental, Chemical) or related; 0 years experience; basic CADD, design principles, Microsoft Excel/Word; good verbal and written communication; up to 10% travel.
ArcGIS, HEC-RAS, SWMM, CADD, Microsoft Excel, Microsoft Word
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2w
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Site Reliability Engineer III
Irvine, California, United States
$117k-$147k/yr HybridFull Time
KFC Pan Europe
KFC Pan EuropeNYSE: YUM: Quick-service restaurant chain specializing in fried chicken products.
2+ YOE2+ years SRE experience focused on observability and automation, familiarity with SRE principles, hands-on observability tooling, incident management, SQL proficiency, basic coding familiarity, and AWS serverless experience.
SQL, JavaScript, Python, Go, TypeScript, DataDog, CloudWatch, OpenTelemetry, Lumigo, FullStory, Amplitude, Embrace, Retool, Git, Gitlab CI/CD, GitHub Actions, VS Code, Terraform, Pulumi, CloudFormation, Akamai, Amazon Bedrock, Lambda, API Gateway, Fargate, S3, DynamoDB, EventBridge, Jira
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2w
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Site Reliability Engineer III
Irvine, California, United States
$117k-$147k/yr HybridFull Time
Yum! Brands
Yum! BrandsNYSE: YUM: Global operator of quick-service restaurant brands.
2+ YOE2+ years SRE experience focused on observability and automation; familiarity with SRE principles, monitoring, incident management, SQL, and basic programming (JavaScript/Python/Go/TypeScript); AWS serverless knowledge.
DataDog, CloudWatch, OpenTelemetry, Lumigo, FullStory, Amplitude, Embrace, SQL, JavaScript, Python, Go, TypeScript, AWS, Lambda, API Gateway, Fargate, S3, DynamoDB, EventBridge, Git, VS Code, Gitlab CI/CD, GitHub Actions, Retool, Terraform, Pulumi, CloudFormation, Akamai, Amazon Bedrock, Jira, Claude Code, Codex, Cursor
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3mo
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Senior EMI/EMC Test Engineer
Los Angeles, California, United States
$140k-$190k/yr OnsiteFull Time
K2 Space
K2 Space: Develops high-power satellite platforms for heavy-lift launch vehicles.
4+ YOEBachelor’s in Electrical Engineering or related field; 4+ years EMI/EMC experience; strong EMI principles; project management skills.
Python, Altium Designer, PCB design, EMC testing tools, MIL-STD-461
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1w
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Senior Opto-Mechanical Engineer
Long Beach, California, United States
$142k-$214k/yr OnsiteFull Time
Relativity Space
Relativity Space: Designing and manufacturing 3D-printed rockets and launch vehicles.
5+ YOEBachelor's in Mechanical/Optical Engineering, 5+ years opto-mechanical experience, CAD and FEA proficiency, experience designing for thermal, vibration, and gravity effects, strong opto-mechanical principles and communication skills.
CAD, FEA
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2w
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Principal Engineer, Digital Workplace Technology Engineering
New York or New Jersey or Los Angeles or United States
$180k-$210k/yr RemoteFull Time
NBCUniversal
NBCUniversalNASDAQ: CMCSA: Produces and distributes entertainment content and theme park experiences.
12+ YOE12+ years in enterprise/platform engineering; deep expertise in Microsoft 365, endpoint management (Intune, JAMF, SCCM), Azure, enterprise AI (Copilot, Power Platform), architecture, SRE principles, and large-scale platform transformations.
Microsoft 365, Microsoft Teams, Microsoft SharePoint, Microsoft OneDrive, Microsoft Exchange Online, Microsoft Entra ID, Microsoft Purview, Microsoft Defender, Microsoft Intune, JAMF, Microsoft SCCM, Microsoft Copilot, Copilot Studio, Microsoft Power Platform, Microsoft Power Apps, Microsoft Power Automate, Microsoft Azure, MLOps, DevOps
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2w
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Sr. Battery Cell Modeling Engineer
Tustin, California, United States
$108k-$135k/yr OnsiteFull Time
Rivian
RivianNASDAQ: RIVN: Designs and manufactures electric vehicles and charging networks.
5+ YOEM.S. or PhD in applied math, physics, mechanical or chemical engineering; 5+ years modeling physical systems and lithium-ion battery principles; expertise in P2D modeling, charge transport, reaction kinetics; automation and scalable modeling experience.
P2D, CFD
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1w
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ASIC/FPGA Verification Engineer (Experienced, Lead, or Senior)
El Segundo or Huntington Beach or Fairfax
$120k-$239k/yr OnsiteFull Time
Boeing
BoeingNYSE: BA: Designs and manufactures aircraft, defense systems, and space technology.
5+ YOEBachelor's in engineering or related field, 5+ years ASIC/FPGA verification experience, proficiency in SystemVerilog/UVM, OOP principles, coverage and code-coverage closure, waveform debug, revision control, and Linux.
UVM, SystemVerilog, SystemVerilog Assertions, svn, cvs, git, Linux, Palladium, Make, Perl, Python
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