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1D Simulation Engineer Jobs in Pasadena, CA (NOW HIRING)

Rivian

Staff Motor Thermal Engineer

Carson, CA · On-site

You will be a point of contact for direct-oil cooling systems, bridging the gap between rapid 1D ... data, and correlate simulation results with physical hardware to refine modeling accuracy

Rivian

Staff Motor Thermal Engineer

Carson, CA · On-site

You will be a point of contact for direct-oil cooling systems, bridging the gap between rapid 1D ... data, and correlate simulation results with physical hardware to refine modeling accuracy

All Jobs1D Simulation Engineer Jobs1D Simulation Engineer Jobs in Pasadena, CA

1D Simulation Engineer information

See Pasadena, CA salary details

$42.5K

$134.6K

$207.8K

How much do 1d simulation engineer jobs pay per year?

As of Sep 1, 2026, the average yearly pay for 1d simulation engineer in Pasadena, CA is $134,605.00, according to ZipRecruiter salary data. Most workers in this role earn between $100,400.00 and $159,800.00 per year, depending on experience, location, and employer.

What is a 1D simulation engineer?

1D Simulation Engineers are professionals who use one-dimensional (1D) simulation tools to model and analyze the behavior of complex systems, such as automotive engines, hydraulic circuits, or thermal management systems. They focus on simulating the performance of these systems using mathematical models, often to predict behavior, optimize designs, or solve engineering problems before physical prototypes are built. Their work helps reduce development costs, improve efficiency, and accelerate product development cycles. 1D Simulation Engineers typically work closely with design, testing, and other engineering teams.

How does a 1D simulation engineer typically collaborate with cross-functional teams during a project?

As a 1D Simulation Engineer, you will frequently work alongside design, testing, and product development teams to ensure that simulation models align with project requirements and real-world data. Collaboration often involves sharing simulation results, validating models with physical test data, and iteratively refining system behavior based on feedback from other engineering disciplines. Effective communication and the ability to translate technical findings into actionable insights for non-simulation stakeholders are crucial for project success.

What are the key skills and qualifications needed to thrive as a 1D simulation engineer, and why are they important?

To thrive as a 1D Simulation Engineer, you need a strong background in engineering fundamentals, physics, and mathematics, typically supported by a degree in mechanical, automotive, or aerospace engineering. Proficiency with 1D simulation tools such as GT-SUITE, AMESim, or Simulink, along with experience in data analysis and modeling, is essential. Strong problem-solving abilities, attention to detail, and collaborative communication skills help distinguish top performers in this field. These skills are crucial for accurately modeling complex systems, optimizing designs, and ensuring effective teamwork in multidisciplinary engineering projects.

What is the difference between 1D Simulation Engineer vs Mechanical Design Engineer?

Aspect1D Simulation EngineerMechanical Design Engineer
Required CredentialsBachelor's or Master's in Mechanical, Aerospace, or related fields; proficiency in simulation softwareBachelor's or Master's in Mechanical Engineering; CAD and design software skills
Work EnvironmentEngineering teams, R&D labs, simulation centersDesign offices, manufacturing facilities, R&D labs
Industry UsageAutomotive, aerospace, energy sectors focusing on system-level simulationsProduct development, machinery, consumer electronics

The main difference is that a 1D Simulation Engineer specializes in creating and analyzing system-level simulations using specialized software, focusing on fluid dynamics, thermodynamics, and system behavior. In contrast, a Mechanical Design Engineer primarily focuses on designing physical components and assemblies. Both roles require engineering credentials, but their daily tasks and tools differ significantly.

What are popular job titles related to 1D Simulation Engineer jobs in Pasadena, CA?

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What job categories do people searching 1D Simulation Engineer jobs in Pasadena, CA look for?

The top searched job categories for 1D Simulation Engineer jobs in Pasadena, CA are:

What cities near Pasadena, CA are hiring for 1D Simulation Engineer jobs?

Cities near Pasadena, CA with the most 1D Simulation Engineer job openings:

1D Simulation Engineer jobs near you

Senior Fluid Systems Engineer

Long Beach, CA • On-site

Relativity Space
Aerospace Product and Parts Manufacturing • 501 - 1,000 employees

9.7

Company rating: 9.7 out of 10

Based on 8 frontline employees who took The Breakroom Quiz

2nd of 72 rated aerospace companies

Great coworkers

People enjoy working here

Good employer

Learn more about Relativity Spaceexternal

$109K - $150K/yr

Full-time

Re-posted 17 days ago

Job description

About the Team:

The Stage Fluids team designs and delivers the propellant, pressurant, pneumatics, and other fluid systems that turn structures into functioning rockets. The team has full ownership across design, production, test, and flight, maintaining a holistic view of Terran R, focused not on isolated parts but integrated functionality. Working on-site at the factory means you're never far from the hardware, enabling rapid iteration and tight feedback loops across design and manufacturing. You won't just be handed requirements: you'll be expected to ask the right questions, collaborate with partners across the company, and ultimately find the best solutions for Terran R.

About the Role: 

As a Vehicle Fluid Systems Engineer, you will be responsible for the fluid system architecture and function for a given vehicle fluid subsystem. You will apply expertise in system architecture, systems operations, and fluid thermodynamics applications to guide hardware design, system analysis, manufacturing, validation and operations.

      Own the vehicle fluid subsystem architecture and schematics, including system control scheme, system and component selection and sizing
      Conducting fluid and thermal analyses, including system sizing and characterization using a variety of base analytical methods (1D steady-state, fluid networks, etc.)
      Leading and participating in system and hardware design and manufacturing reviews
      Defining and supporting test objectives and test campaigns to validate system design, system models and overall system performance including supporting integrated vehicle testing and launch

About You:
      Bachelor's degree (Mechanical Engineering or relevant)
      4+ years of experience working with fluids systems
      Experience applying engineering fundamentals in system design, thermodynamics, fluid dynamics, and heat transfer
      Experience with one or more fluid or thermal modeling tools for internal compressible and incompressible analysis
      Proficiency in Python or a similar programing language for scientific computing and automated test/simulation data analysis

Nice to haves, but not required:
      Experience with launch vehicles and spacecraft

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