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377 lead system engineer jobs at 128 companies in Simi Valley, CA

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Founding Backend / Infra Engineer
Cupertino, CA, US
$160k-$300k/yr On-SiteFull Time
HiringCafe
HiringCafe: Building a 100× better job search engine to take on Indeed and LinkedIn.
Own the crawlers, pipelines, and infrastructure powering a real-time job search engine. Strong Node.js and Python fundamentals; bonus points for security and reverse-engineering chops.
Node.js, Python, Elasticsearch, Redis
Help us #BeatIndeed & #BeatLinkedIn
1mo
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Lead Engine Cooling System Engineer
Novi or Charlotte or San Francisco or Los Angeles or New York City
$160k-$193k/yr OnsiteFull Time
Scout Motors
Scout Motors: Designs and manufactures all-electric rugged SUVs and trucks.
12+ YOEBachelor’s in mechanical engineering (Master's preferred), 12+ years engineering experience, 8 years thermal systems design, leadership experience, simulation and prototyping/testing skills, strong analytical and communication abilities.
CFD, 1D thermal-fluid models
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2mo
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System Engineer - RF SatCom
Hawthorne, California, United States
$90k-$125k/yr OnsiteFull Time
ThinKom
ThinKom: ThinKom manufactures high-performance phased-array antennas for satellite communications.
2+ YOEDesign, analyze, and implement RF satellite communications systems; lead architecture, requirements, and integration; travel up to 10%.
Vector Network Analyzers, Oscilloscopes, Spectrum Analyzers, RF Test Equipment, MS Office
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2mo
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Principal System Engineer (Contract)
Torrance, California, United States
$167k-$197k/yr OnsiteContract
Epirus
Epirus: Sells software-defined high-power microwave systems for counter-drone defense.
8+ YOE8+ years in systems engineering with lifecycle experience; MBSE and SE tools; programming and version control knowledge; ability to lead across teams.
JAMA, Polarion, DOORS, MBSE, SparxEA, Capella, Python, Git, GitHub
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3mo
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Lead Avionics Engineer
Los Angeles, California, United States
$147k-$179k/yr OnsiteFull Time
Hermeus
Hermeus: Develops high-speed and hypersonic aircraft for defense and transportation.
5+ YOEBachelor's in Electrical Engineering; 5+ years in electrical hardware design; 1+ year leading a technical team; strong knowledge of avionics hardware and power systems.
Altium Designer, Siemens NX, Teamcenter, Capital Harness, Git, SPICE, Ansys, DMM, Oscilloscope
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2mo
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Lead Engineer, Game Systems
Santa Monica, California, United States
$170k-$195k/yr OnsiteFull Time
Absurd Ventures
Absurd Ventures: Creating original storytelling universes across video games and multimedia
7+ YOE7+ years in game development; senior/lead systems engineering; C++ and engine proficiency; leadership experience; strong communication and problem-solving.
C++, Unreal Engine 4/5, Blueprint/Lua/Angelscript scripting, Networking, Tooling for gameplay systems
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2w
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Resort Wide System Engineer Principal - Project Hire/Internal Assignment
Glendale, California, United States
$139k-$187k/yr HybridFull Time
The Walt Disney Company
The Walt Disney CompanyNYSE: DIS: Produces media content and operates global theme parks.
15+ YOE15+ years in resort-wide systems engineering or related field; ability to develop system-level designs, lead engineering teams, perform risk analysis, manage project budgets, and communicate across technical and operational stakeholders.
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2mo
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Lead Antenna Engineer
Redondo Beach, California, United States
$150k-$200k/yr OnsiteFull Time
Impulse Space
Impulse Space: Developing in-space transportation services and orbital transfer vehicles.
5+ YOEDesign antenna systems for spacecraft, lead the antenna design lifecycle from concept to on-orbit support, collaborate with RF, avionics, and mechanical teams.
CST, HFSS, COMSOL, Cenos
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2w
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Staff System Test Engineer -Control Segment
Edwards AFB or Palmdale
$161k-$241k/yr OnsiteFull Time
Northrop Grumman
Northrop GrummanNYSE: NOC: Develops and manufactures advanced aerospace, defense, and space systems.
8+ YOESTEM degree with extensive related experience (BS+12/MA+10/PhD+8), active U.S. Top Secret + SCI clearance, Linux/Windows experience, network hardware/software familiarity, Linux command line proficiency, ability to lead tests and troubleshoot.
Linux, Windows, VMware vSphere
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3w
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Thermal Protection System Lead
Seattle or Brevard County or Denver or Los Angeles
$111k-$169k/yr OnsiteFull Time
Blue Origin: Develops reusable rockets and systems for human spaceflight.
8+ YOEB.S. in mechanical or aerospace engineering, 8+ years thermal engineering experience, strong thermal fundamentals, TPS materials familiarity, hardware test experience, and knowledge of aerospace verification and validation.
Thermal Desktop, Sinda/Fluint
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2mo
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Lead Combustion Engineer
El Segundo, California, United States
$170k-$185k/yr HybridFull Time
Arbor Energy
Arbor Energy: Building advanced power systems for clean, carbon-negative electricity.
7+ YOEBachelor’s in mechanical, aerospace, chemical engineering; 7+ years in combustion system design, analysis, and testing; strong thermodynamics, fluid mechanics, heat transfer, and high-temp/pressure experience; leadership and mentoring ability; startup/hardware experience; programming for data analysis (Python, MATLAB).
Python, MATLAB, CFD
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2mo
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Systems Integration Engineer, Lead
El Segundo, California, United States
$99k-$225k/yr OnsiteFull Time
Booz Allen Hamilton
Booz Allen HamiltonNYSE: BAH: Provides technology and management consulting services to diverse organizations.
10+ YOE10+ years systems engineering or integration; 5+ years space/DoD program reviews; 2+ years risk management; Secret clearance; Bachelor's degree.
Model-Based Systems Engineering, Agile methodologies, DevSecOps, GPS
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1mo
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Lead Engineer
New York City or Los Angeles or Miami or London
$180k-$200k/yr HybridFull Time
Duetti
Duetti: Acquires and manages music catalogs for independent creators.
5+ YOE1+ Mgmt5+ years software engineering experience, 1+ year leading teams. Expert backend Python, API and distributed systems design, cloud native/AWS, Kubernetes, Docker, Terraform, CI/CD, production scalability, strong communication and leadership.
Python, AWS, Kubernetes, Docker, Terraform, CI/CD
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2w
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Staff System Test Engineer -Control Segment
Edwards AFB or Palmdale
$161k-$241k/yr OnsiteFull Time
Northrop Grumman
Northrop GrummanNYSE: NOC: Designs and manufactures advanced aerospace and defense systems.
8+ YOEUS Top Secret+SCI clearance, STEM degree with extensive related experience (8–12+ yrs), Linux/Windows experience, network and virtualization knowledge, ability to lead test teams and work flexible schedules.
Linux, Windows, VMware VSphere
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2mo
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Lead Systems Project Engineer
Torrance, California, United States
$153k-$191k/yr HybridFull Time
Honeywell International
Honeywell InternationalNASDAQ: HON: Designs and manufactures technologies for aerospace, buildings, and industry.
8+ YOEBachelor's degree in engineering and 8+ years in aerospace project management; proven ability to deliver complex projects on time and within budget; strong leadership, communication, and risk management.
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1mo
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Digital Engineer, Lead
El Segundo, California, United States
$99k-$225k/yr HybridFull Time
Booz Allen Hamilton
Booz Allen HamiltonNYSE: BAH: Consulting and technology services for government and commercial clients
7+ YOE7+ years in large-scale missions and systems engineering; DoD/government systems experience; MBSE with digital engineering tools; Secret clearance; Bachelor's in STEM; top-secret and related certifications preferred.
Cameo, MagicDraw, SparxEA, DOORS, IBM Rhapsody, SysML, DoDAF, MATLAB, STK, ModelCenter, TeamCenter
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2w
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Resort Wide System Engineer Principal - Project Hire/Internal Assignment
Glendale, California, United States
$139k-$187k/yr HybridFull Time
The Walt Disney Company
The Walt Disney CompanyNYSE: DIS: Produces movies, operates theme parks, and provides streaming services.
15+ YOE15+ years systems engineering experience focused on resort-wide telecommunications, alarm, and low-voltage systems; bachelor’s in engineering required; PE or BICSI RCDD desired; ability to lead teams, develop system-level designs, and manage multi-million dollar project budgets.
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2mo
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Lead Senior Software Engineer
Port Hueneme, California, United States
OnsiteFull Time
Engineering Services Network
Engineering Services Network: A defense-focused technology.
10+ YOELead software engineer with 10+ years in Navy weapon/combat systems; Secret DoD clearance; master's degree.
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2mo
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Evolved Strategic SATCOM (ESS) Sr. Space Systems Lead Payload Engineer
El Segundo, California, United States
$171k-$257k/yr OnsiteFull Time
The Aerospace Corporation
The Aerospace Corporation: Provides technical expertise and research for national space programs.
12+ YOEBachelor's in engineering/science; 12+ years in space systems; experience leading cross-functional teams; strong customer communication; Top Secret clearance required.
RF, Satellite communications hardware, Digital/analog waveform processing, Systems engineering tools
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2w
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Lead Systems Engineer
Santa Clarita, California, United States
$109k-$145k/yr OnsiteFull Time
Curtiss-Wright
Curtiss-WrightNYSE: CW: Engineers and manufactures critical components for aerospace and defense.
7+ YOE7+ years experience supporting US DoD primes, expert in systems engineering, requirements management, DOORS and Cameo, ClearQuest/JIRA, Linux/VxWorks, SOSA/VPX and serial protocols; BS in CS/SE/EE preferred.
DOORS, Cameo, ClearQuest, JIRA, Linux, VxWorks, SOSA, VPX, MIL-STD-1553, RS422, RS485, RS232, PCIe, USB, 10G, 100G Gigabit Ethernet
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1d
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Lead Mission Systems Engineer
Seal Beach or El Segundo or Aurora or Herndon
$153k-$207k/yr OnsiteFull Time
Boeing
BoeingNYSE: BA: Designs and manufactures aircraft, defense systems, and space technology.
7+ YOE2+ MgmtBachelor's in engineering or related field, 7+ years systems engineering with 2+ years technical leadership, active US Top Secret/SCI clearance, proficiency with MATLAB and Python, mission modeling and systems integration experience.
MATLAB, Python
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