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438 performance engineer jobs at 279 companies in Mission Viejo, CA

3mo
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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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Brake Performance Engineer
Foster City or Irvine
$115k-$130k/yr OnsiteFull Time
ALTEN
ALTENEuronext Paris: ATE: Provides engineering and technology consulting services to industrial clients.
5+ YOEBS or MS in Mechanical, Electrical, or Automotive Engineering; 5-8 years brake development/vehicle testing; strong braking system knowledge; travel within continental US.
CANalyzer, INCA, MDA, MATLAB/Simulink, Racelogic Vbox
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19h
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Cycle Performance Engineer - Turbomachinery
Torrance or Orangeville
$140k-$215k/yr OnsiteFull Time
Valar Atomics
Valar Atomics: Developing scalable, high-temperature, grid-independent advanced nuclear power systems.
3+ YOEBachelor's degree in mechanical or aerospace engineering and 3 years analyzing thermodynamic cycles with a thermodynamic solver. NPSS, Aspen, GateCycle, Flownex, or EES experience required.
NPSS, Aspen, GateCycle, Flownex, EES
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2d
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Senior Performance Engineer Test
Los Angeles, California, United States
$100k-$140k/yr OnsiteFull Time
ICANN
ICANN: Coordinates the global Internet's systems of unique identifiers.
8+ YOEBachelor's degree and 8+ years of software testing or performance engineering experience, including enterprise-scale performance testing, automation, Kubernetes, cloud-native applications, and CI/CD integration.
Apache JMeter, Gatling, k6, Locust, BlazeMeter, Java, Python, JavaScript, Kubernetes, Docker, AWS, Azure, Google Cloud Platform, GitHub Actions, Jenkins, GitLab CI, Azure DevOps, Prometheus, Grafana, Datadog, Dynatrace, New Relic, AppDynamics, Redis, Memcached, Linux, Unix, Kafka, RabbitMQ, SQL, APM, CI/CD, REST APIs, WebSockets, gRPC
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2mo
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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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3mo
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Powertrain Performance Test Engineer (Chino, CA, US, 91710)
Chino, California, United States
$70k-$93k/yr OnsiteFull Time
Hyundai America Technical Center
Hyundai America Technical CenterKorea Exchange: 005380: Designs and engineers vehicles for the North American market.
1+ YOEBachelor in Mechanical or Aerospace; 1+ years engineering experience; automotive internship; data acquisition; MATLAB; driving license; strong communication.
MATLAB, Data acquisition systems, Microsoft Office
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1mo
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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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6d
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RF Network Performance and Automation Engineer (Early Career) (788575)
Irvine, California, United States
$107k-$141k/yr OnsiteFull Time
Ericsson
EricssonNasdaq: ERIC: Manufactures telecommunications equipment and provides networking services.
2+ YOEBachelor's degree in telecommunications, electrical engineering, computer science, or related quantitative field; RF optimization or RAN experience desirable; knowledge of 4G/5G, automation, troubleshooting, and project planning.
Python, Tableau, Microsoft Power BI
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2mo
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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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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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6d
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RF Network Performance and Automation Engineer (Early Career)
Irvine, California, United States
$107k-$141k/yr HybridFull Time
Ericsson
EricssonNasdaq Stockholm: ERIC B: Global provider of telecommunications equipment and services.
2+ YOEBachelor's degree in telecommunications, electrical engineering, computer science, or related quantitative field; RF optimization or RAN performance experience desirable; knowledge of 4G/5G, RF principles, troubleshooting, and cross-functional communication.
Python, Tableau, Microsoft Power BI
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3w
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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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1mo
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Engineering Design Schedule Performance Advisor
Pomona, California, United States
$129k-$194k/yr HybridFull Time
Southern California Edison
Southern California EdisonNYSE: EIX: Electric utility providing electricity transmission and distribution services.
7+ YOE7+ years preparing or supporting performance data analysis/reporting; Primavera P6, Excel, Access, SAP, Power BI proficiency; strong communication, project controls, and schedule analysis skills.
Primavera P6, Microsoft Excel, Access, SAP, Power BI
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3w
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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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2d
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Sr Embedded DSP Engineer - High Performance Signal Processing
Huntington Beach, California, United States
$130k-$240k/yr OnsiteFull Time
Mach Industries
Mach Industries: Designs and manufactures autonomous unmanned aerial vehicles for defense.
5+ YOEBachelor’s or master’s degree and 5+ years developing production signal-processing software for radar, RF sensing, EW, wireless, or real-time systems. Requires C/C++, Python or MATLAB, embedded architectures, optimization, hardware bring-up, and SPI/I2C/GPIO.
Python, MATLAB, C, C++, SPI, I2C, GPIO, Ethernet, CSI-2, DO-178C, MISRA C, ASIL
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3mo
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Senior Web Developer – WordPress, Performance & Attribution
Santa Ana, California, United States
$3k-$4k/mo RemoteFull Time, Contract
Do It Right Plumbers
Do It Right Plumbers: Providing residential and commercial plumbing services in Orange County.
5+ YOE5+ years hands-on web development; deep WordPress/Elementor Pro; PHP; Cloudflare and WP Engine; GTM/GA4; performance, accessibility, and technical SEO; local business website experience; Pacific Time hours.
WordPress, Elementor Pro, PHP, Cloudflare, WP Engine, GTM, GA4, JSON-LD, Structured Data
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1w
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Engineer
Pasadena, California, United States
$137k-$171k/yr OnsiteFull Time
City of Pasadena
City of Pasadena: Providing municipal services and public programs to the Pasadena community.
Performs professional engineering duties supporting planning, design, construction, operation, and maintenance of water infrastructure; prepares studies and reports; coordinates with consultants and contractors; reviews plans for regulatory compliance.
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2d
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Senior Mobile Software Engineer, Android Performance
San Jose or Los Angeles or Singapore or New York City or London or Dublin or Paris or Berlin or Dubai or Jakarta or Seoul or Tokyo
$156k-$388k/yr OnsiteFull Time
TikTok
TikTok: Global short-form video hosting and social media platform.
5+ YOEBachelor's degree in computer science or related field and 5 years of software development experience; Java, Kotlin, or C++; Android development and performance profiling experience required.
Java, Kotlin, C++, Android, Android Studio Profiler, Systrace, Jetpack Compose, RxJava, OpenGL
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2w
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Systems Engineer
Irvine, California, United States
$120k-$160k/yr OnsiteFull Time
DZYNE Technologies
DZYNE Technologies: Developer and manufacturer of autonomous airborne defense systems.
Lead systems engineering for expendable UAS: translate mission needs into requirements, manage interfaces, plan and execute system validation, perform reliability and risk analyses. Bachelors in engineering required; masters preferred.
DOORS, SysML, MBSE
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