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Senior Performance Engineer Jobs in Castaic, CA (NOW HIRING)

Approach Venture

Senior GNC Engineer

Los Angeles, CA

$150K - $200K/yr

Senior GNC Engineer - Lead Spacecraft Guidance, Navigation & Mission Design Los Angeles, CA | On ... Develop analytical tools, simulations, and software models to evaluate mission performance and ...

Approach Venture LLC

Senior GNC Engineer

Los Angeles, CA · On-site

$150K - $200K/yr

Senior GNC Engineer - Lead Spacecraft Guidance, Navigation & Mission Design Los Angeles, CA | On ... Develop analytical tools, simulations, and software models to evaluate mission performance and ...

Meissner

Senior Sourcing Engineer

Camarillo, CA

$106K - $146K/yr

Extraordinary performance comes from extraordinary people. Meissner as a group is passionate about ... The Senior Sourcing Engineer drives engineering-led sourcing strategy, supplier development, and ...

Parallel Systems

Senior Software Engineer

Los Angeles, CA

$132K - $174K/yr

Senior Software Engineer Parallel Systems is seeking a Senior Software Engineer to design, build ... You will work on high-performance backend systems that empower our rail vehicles to navigate the ...

Next Step Systems

Senior Systems Engineer

Los Angeles, CA · On-site

$112K - $154K/yr

... optimal performance of systems. - Perform frequent and long-term maintenance in addition to ... Senior Systems Engineer Qualifications: - Expert proficiency in network and storage design and ...

Parallel Systems

Senior Mechanical Engineer

Los Angeles, CA

$112K - $148K/yr

Senior Mechanical Engineer Parallel Systems is seeking a Senior Mechanical Engineer with expertise ... This role will focus on designing and analyzing mechanical systems for performance, safety, and ...

Next Step Systems

Senior Systems Engineer

Los Angeles, CA · On-site

$112K - $154K/yr

... optimal performance of systems. - Perform frequent and long-term maintenance in addition to ... Senior Systems Engineer Qualifications: - Expert proficiency in network and storage design and ...

Paul Hastings

Senior Data Engineer

Los Angeles, CA · On-site

$194K/yr

The Senior Data Engineer is responsible for designing, building and maintaining modern data ... Support production operations, root cause analysis and performance tuning; * Maintain technical ...

GPL Technologies

Senior Systems Engineer

Los Angeles, CA · On-site

$112K - $154K/yr

We support complex studio environments where uptime, performance, security, and production continuity matter. We are looking for a Senior Systems Engineer based in the Greater Los Angeles area who ...

Atlas Financial Services

Sr. Software Engineer

Los Angeles, CA · Remote

$125K - $165K/yr

Sr. Software Engineer (Go/Typescript) We are currently seeking a talented Sr. Full Stack Software ... You will also ensure the best possible performance, quality, and responsiveness of the applications.

GPL Technologies

Senior Systems Engineer

Los Angeles, CA · On-site

$112K - $154K/yr

We support complex studio environments where uptime, performance, security, and production continuity matter. We are looking for a Senior Systems Engineer based in the Greater Los Angeles area who ...

Lawrence Harvey

Senior Platform Engineer

Los Angeles, CA · On-site

$140K - $201K/yr

Senior Platform Engineer Lawrence Harvey are working exclusively with a well-funded, venture-backed ... Familiarity with high-performance computing (HPC) environments. * Experience with monitoring and ...

EcoSense Lighting

Senior Mechanical Engineer

Los Angeles, CA · On-site

$112K - $148K/yr

The Sr Mechanical Engineer will have strong and effective communications skills to coordinate with a cross-functional team to meet very aggressive performance, cost and schedule goals. These ...

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All JobsPerformance Engineer JobsSenior Performance Engineer JobsSenior Performance Engineer Jobs in Castaic, CA

Senior Performance Engineer information

See Castaic, CA salary details

$58.8K

$125K

$181.3K

How much do senior performance engineer jobs pay per year?

As of Aug 8, 2026, the average yearly pay for senior performance engineer in Castaic, CA is $125,020.00, according to ZipRecruiter salary data. Most workers in this role earn between $103,200.00 and $141,800.00 per year, depending on experience, location, and employer.

What skills and qualifications are needed to thrive as a senior performance engineer?

To thrive as a Senior Performance Engineer, expertise in performance analysis, capacity planning, and system optimization—often backed by a degree in computer science or a related field—is crucial. Familiarity with tools such as LoadRunner, JMeter, APM solutions, profiling tools, and relevant certifications like CPPE or PMP are highly beneficial. Strong problem-solving, collaboration, and clear communication skills are vital for identifying bottlenecks and working closely with cross-functional teams. These combine to ensure robust system performance, user satisfaction, and reliable application scalability in demanding technical environments.

What does a senior performance engineer do?

A Senior Performance Engineer typically oversees performance testing cycles, analyzes system metrics, and collaborates with development and operations teams to diagnose and resolve performance issues. Daily tasks often include designing and executing test plans, monitoring application behavior under load, and recommending improvements for scalability and efficiency. They also participate in code reviews and architectural discussions to identify potential bottlenecks early in the development cycle. Consistent communication with both technical and non-technical stakeholders is key, ensuring that performance goals align with business objectives.

What is a senior performance engineer?

A Senior Performance Engineer is responsible for optimizing the performance, scalability, and reliability of software applications and systems. They analyze performance metrics, conduct load and stress testing, identify bottlenecks, and work with development teams to implement improvements. This role requires expertise in profiling tools, performance tuning, and system architecture to ensure optimal user experience. Additionally, they may establish best practices for performance testing and contribute to overall system design decisions.

What cities near Castaic, CA are hiring for Senior Performance Engineer jobs? Cities near Castaic, CA with the most Senior Performance Engineer job openings:
Senior Performance Engineer jobs near you

Senior JMeter Performance Test Engineer

Trinus

Los Angeles, CA • On-site

Contractor

Re-posted 25 days ago

Job description

Role: Senior JMeter Performance Test Engineer

Location: Los Angeles, CA

The Senior JMeter Performance Test Engineer will lead performance testing activities for large-scale Oracle CCS SaaS and integrated utility application environments. This role requires strong expertise in Apache JMeter, enterprise performance engineering practices, API and integration performance testing, and coordination across multiple technical teams supporting complex utility transformation programs.

The engineer will support:

  • performance test planning
  • workload modeling
  • scripting
  • execution
  • monitoring
  • defect analysis
  • environment coordination
  • and production-readiness validation activities.

Key Responsibilities

Performance Testing & Execution

  • Design and develop complex Apache JMeter test scripts for web, API, batch, and integration testing.
  • Execute load, stress, endurance, spike, and scalability testing activities.
  • Develop realistic utility transaction workload models for Oracle CCS and integrated applications.
  • Validate system response times, throughput, concurrency, and resource utilization.
  • Support performance benchmarking and production-readiness testing.

Oracle CCS / Integration Testing

  • Support performance testing of:
    • Oracle CCS
    • OIC integrations
    • APIs
    • middleware interfaces
    • batch processing
    • conversion activities
  • Coordinate testing of high-volume utility business transactions including:
    • billing
    • payments
    • customer operations
    • meter reads
    • batch processing
  • Support end-to-end integration performance validation.

Environment & Test Coordination

  • Coordinate with:
    • Oracle DevOps
    • Infrastructure
    • Environment Management
    • Data Conversion
    • Integration teams
  • Support environment readiness validation prior to test execution.
  • Coordinate performance test data preparation and refresh activities.
  • Track interface dependencies and environment availability during testing cycles.

Performance Analysis & Troubleshooting

  • Analyze application, middleware, database, and infrastructure performance metrics.
  • Identify bottlenecks across:
    • APIs
    • integrations
    • database queries
    • JVM
    • network
    • batch processing
  • Support root cause analysis and defect triage activities.
  • Prepare performance test reports and executive summaries.

Required Qualifications

  • 5+ years of performance testing experience.
  • Strong hands-on expertise with Apache JMeter.
  • Experience with:
    • API testing
    • web application performance testing
    • batch performance testing
    • integration performance validation
  • Experience in enterprise cloud or SaaS environments.
  • Strong understanding of:
    • HTTP/HTTPS
    • REST/SOAP APIs
    • JDBC
    • authentication mechanisms
    • distributed load testing
  • Experience coordinating with multiple technical teams in integrated testing programs.
  • Strong analytical and troubleshooting skills.

Preferred Qualifications

  • Experience with Oracle CCS / CC&B environments.
  • Experience with Oracle Utilities Application Framework (OUAF).
  • Utilities industry experience preferred.
  • Experience with:
    • Oracle Integration Cloud (OIC)
    • OCI environments
    • Splunk/AppDynamics/Dynatrace
    • Linux/Windows environments
  • Familiarity with Agile and Jira-based delivery models.

Trinus Corporation, a leading provider of technology solutions and services with over 25 years of experience, is a certified WBE/MBE/SBE/SDB firm accredited by WBENC, NMSDC, and SBA.

Our mission is to shape the future of work by aligning the right mix of people, process, technology, and innovation to efficiently meet our clients' business objectives.

At Trinus, we understand that finding the right opportunity is pivotal in your career journey. Our staffing services go beyond mere placements; they are about matching your skills and aspirations with the perfect fit.

To learn more about us, please visit our website www.trinus.com