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328 performance engineer jobs at 206 companies in Simi Valley, CA

2mo
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Thermodynamics Performance Engineer
El Segundo, California, United States
$140k-$155k/yr OnsiteFull Time
Arbor Energy
Arbor Energy: Building advanced power systems for clean, carbon-negative electricity.
4+ YOEBachelor's in engineering; 4+ years in cycle performance analysis; thermo/fluid/heat transfer expertise; 1D dynamic models; Python; MATLAB/Simulink/Modelica; team collaboration.
Python, MATLAB, Simulink, Modelica
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3mo
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System Performance Engineer
Los Angeles, California, United States
OnsiteFull Time
AFL
AFL: Global manufacturer of fiber optic products and network services.
4+ YOEBS in engineering or science plus 1-3 years telecom experience (or 3-5 years with an Associate’s) ; proficient in MS Office; strong analytical, problem-solving, and communication skills; able to travel regionally; eligible to work in the United States.
Microsoft Office, Microsoft Project, Microsoft Visio
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4d
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Range and Performance Test Engineer
Long Beach, California, United States
HybridFull Time
Ford Motor Company
Ford Motor CompanyNYSE: F: Ford manufactures, sells, and services vehicles and mobility solutions.
5+ YOEBachelor's in engineering,5+ years vehicle range/performance testing (EV preferred),hands-on dyno experience,knowledge of ISO/IEC 17025 and regulatory procedures,proficiency with Python or MATLAB.
Python, MATLAB, CarSim, GT-Suite, AVL, Vector, ATI, DEWESoft
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4d
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Range and Performance Test Engineer
Long Beach, California, United States
HybridFull Time
Ford Motor Company
Ford Motor CompanyNYSE: F: Designs, manufactures, and sells cars, trucks, and SUVs.
5+ YOEBachelor's in engineering,5+ years vehicle performance/range testing,hub and chassis dyno expertise,ISO/IEC 17025 knowledge,EV powertrain and road-load modeling,gradeability/towing testing,Python or MATLAB proficiency.
Python, MATLAB, CarSim, GT-Suite, AVL, Vector, ATI, DEWESoft
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1mo
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High Performance Compute Responsible Engineer
Long Beach, California, United States
$175k-$241k/yr OnsiteFull Time
Relativity Space
Relativity Space: Designing and manufacturing 3D-printed rockets and launch vehicles.
5+ YOEBSEE and 5+ years designing and bringing up high-speed digital compute boards; expertise in high-speed PCB design, power delivery networks, HBM/DDR5, PCIe Gen4/5, thermal requirements, board-level validation, and signal integrity. Firmware and embedded debug preferred.
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2w
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Sr. High Performance Computing (HPC) Systems Engineer
Brownsville or Hawthorne
OnsiteFull Time
SpaceX
SpaceX: Designs and launches advanced rockets and satellite internet constellations.
5+ YOE5+ years systems engineering experience, hands-on Linux and HPC cluster administration, Kubernetes, scripting (Bash/Python), networking, and security; eligible for TS/SCI with polygraph.
Kubernetes, Linux, Bash, Python, Slurm, PBS, LSF, Prometheus, Grafana, Nagios, CUDA, Docker, Podman, Singularity, Puppet, Ansible
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1w
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Aerospace Engineer-Aircraft Performance (Direct Hire)
Lakewood or Denver or Washington or Orlando or Hapeville or Chicago or Wichita or Burlington or Kansas City or Greensboro or Westbury or Vandalia or Oklahoma City or Fort Worth or Des Moines
$95k-$148k/yr OnsiteFull Time
Federal Aviation Administration
Federal Aviation Administration: Regulates civil aviation and manages national air traffic systems.
1+ YOEBachelor's degree in engineering (ABET-accredited or equivalent) and at least one year of specialized experience addressing aircraft performance and handling qualities; transcripts required; U.S. citizenship required.
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1w
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Tracking Architecture Performance Egnineer
El Segundo or Chantilly or Colorado Springs
$110k-$194k/yr OnsiteFull Time
The Aerospace Corporation
The Aerospace Corporation: Provides technical expertise and research for national space programs.
4+ YOEBachelor's in STEM, U.S. citizenship, active TS/SCI clearance required, 4+ years modeling/simulation experience (6+ for specialist), knowledge of tracking algorithms, leadership and mentoring experience.
C, C++, Python, FORTRAN, Bitbucket, GitHub, JIRA, Confluence
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1mo
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Systems Performance Lead, Sustainability Advisory
Boston or Los Angeles or Houston or Dallas or Phoenix or Miami or Bellevue or Denver
$102k-$117k/yr OnsiteFull Time
STV
STV: Provides engineering and architectural design for public infrastructure.
8+ YOE8+ years in energy simulation/computational design within AEC; Bachelor’s in engineering/architectural engineering (Master's preferred); professional credential (PE, AIA, BEMP) preferred; proficiency with ClimateStudio, EnergyPlus, Grasshopper/Ladybug; strong energy codes and GHG inventory experience.
ClimateStudio, EnergyPlus, Grasshopper, Ladybug, PHIUS
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Building Performance Analyst
Los Angeles or Riverside or Sacramento or San Diego
$93k-$144k/yr HybridFull Time
DLR Group
DLR Group: Integrated design firm providing architecture, engineering, and planning services.
6+ YOEBachelor's degree, 6+ years energy modeling/building performance analysis, 1 year IES Virtual Environment experience, Revit proficiency, familiarity with ASHRAE standards, and strong reporting and design communication skills.
Integrated Environmental Solutions Virtual Environment, Revit, Ladybug, Honeybee
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3w
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Director, Gas Asset Performance
Los Angeles, California, United States
$140k-$180k/yr RemoteFull Time
Divert
Divert: Eliminates wasted food and produces renewable natural gas.
10+ YOEBachelor's in mechanical or related engineering,10+ years supporting/operating/optimizing industrial gas/RNG/biogas facilities,asset management and vendor oversight experience.
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4d
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Software Technical Performance Manager - L4
Pasadena, California, United States
$125k-$191k/yr HybridFull Time
Sophia Space
Sophia Space: Modular data center hardware for in-orbit computing and AI.
7+ YOE7+ years technical engineering experience with 2+ years technical program management; ability to coordinate complex software releases, manage risks, define readiness criteria, and engage with senior engineers.
NVIDIA Jetson
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4d
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Supplier Performance Agent
Los Angeles, California, United States
$40-$50/hr FieldPart Time
Verify, Inc.
Verify, Inc.: Provides global supply chain risk management and quality inspection.
10+ YOEBachelor's in administration/industrial engineering/operations or equivalent, 10+ years experience, willing to travel up to 70%, strong manufacturing and sub-tier experience, expert Microsoft PowerPoint/Excel/Word, project planning and communication skills.
Microsoft PowerPoint, Microsoft Excel, Microsoft Word, BA system
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2mo
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Director of Performance Analysis & Simulation
Gardena, California, United States
OnsiteFull Time
Singularity Defense
Singularity Defense: Develops low-cost autonomous missile and air defense systems.
10+ YOEBachelor’s in aerospace/mechanical/math; 10+ years in defense/aerospace, hands-on Python 6-DOF sims, Monte Carlo, MDAO; lead design reviews; build and mentor team.
Python, Monte Carlo, MDAO
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4w
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Project Engineer
Carpinteria, California, United States
$69k-$111k/yr OnsiteFull Time
Avantor
AvantorNYSE: AVTR: Provides chemicals, laboratory equipment, and services to life sciences.
2+ YOEBachelor's in engineering preferred; 2+ years engineering/project coordination experience; proficiency with AutoCAD, SOLIDWORKS, and Microsoft Project; ability to calculate loads and perform energy balances; knowledge of safety and regulatory standards.
AutoCAD, SOLIDWORKS, Microsoft Project
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2w
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Security Engineer
Los Angeles, California, United States
OnsiteFull Time
LENS
LENS: AI-powered technology for real-time traffic accident prevention.
Design, implement, and operate end-to-end security for cloud-native platforms; lead FedRAMP/GovRAMP compliance; perform threat modeling, appsec, and incident response; partner with engineering teams.
GCP, AWS, Azure, KMS, OWASP ZAP, OX suites, SIEM, Splunk, GSO
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1mo
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Systems Engineer, Mid
El Segundo, California, United States
$62k-$141k/yr OnsiteFull Time
Booz Allen Hamilton
Booz Allen HamiltonNYSE: BAH: Provides technology and management consulting services to diverse organizations.
5+ YOE5+ years systems engineering experience developing/verifying system functional and performance requirements, managing specifications and acceptance reviews (SRR/SFR/PDR/CDR); Bachelor's in Engineering/Math/Physics/CS; Secret clearance required.
Microsoft Teams, KanBan
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1mo
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Electrical Engineer
Long Beach, California, United States
$120k-$150k/yr HybridFull Time
Legence
LegenceNASDAQ: LGN: Provides engineering and sustainability services for mission-critical building systems
5+ YOEBachelor's (or Master's) in Electrical Engineering, 5+ years experience, PE license preferred, proficiency with NEC, AutoCAD, ETAP, SKM, and Revit, ability to lead electrical design projects and perform project management.
NEC, AutoCAD, ETAP, SKM, Revit
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2w
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Reliability Engineer
Long Beach, California, United States
$112k-$159k/yr OnsiteFull Time
Vast
Vast: Develops and operates commercial artificial-gravity space stations.
BS in engineering or related field, ability to perform FMEA/FMECA, FTA, reliability predictions and root-cause investigations, willingness to travel up to 20% and work evenings/weekends, ability to lift 25 lbs.
FRACAS
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4d
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Operations Engineer
Los Angeles County, California, United States
$11k-$14k/mo HybridFull Time
State Controller's Office
State Controller's Office: California's fiscal controller managing state financial operations and assets.
Perform oil, gas, geothermal engineering including UIC, production, reservoir studies, permits, technical/legal directives; valid driver\u0002s license and California residency prior to appointment required; must be authorized to work in the U.S.
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