Jobs Ask AI Pay Interviews Companies CompareSign in

Wait…

We read every job from the company's own job board. You apply on the company site.Jobs Job types Internships New graduate jobs Companies Pay Reported pay Check an offer Add your pay Interview questions Add your interview questions Compare with LinkedIn Job sites compared Pay transparency laws API for developers Monthly report Companies we cover Make a portfolio page For companies: find people About Privacy

SIL Environment Development Engineer, Automated Driving

Woven by Toyota, Tokyo

Posted pay

Pay not posted

Location: Tokyo
Work type: Hybrid
Level: Not given
Experience: 3+ years
Skills in the job text: C++
C
Posted: Sep 1, 2026
Last check: 5 h ago
Job type: Software engineering

Apply on the Woven by Toyota site Sign in to save

The Woven by Toyota site opens in a new tab.

WB

Woven by Toyota

About Woven by Toyota: funding, hiring and pay

Check my fit

Compare your résumé with this job. See where you match, what is missing and which lines to change.

Sign in to check your fit

Apply kit

Prepare your application for this job. We improve your résumé and write a cover letter from the facts in your résumé.

Sign in to use the apply kit

The team

Our team specializes in developing and advancing cutting-edge Software-in-the-Loop (SIL) environments to accelerate the evolution of autonomous driving technology. We utilize two key SIL environments, ClosedSILS and OpenSILS, leveraging their unique characteristics to efficiently evaluate and validate software. Additionally, we focus on addressing shared challenges, such as improving processing speeds, which are essential for enhancing development efficiency.

In ClosedSILS, the simulator is connected to the autonomous driving software in real time, forming a feedback loop that enables dynamic evaluation of vehicle dynamics and control logic. This environment is designed with precision in mind, as we strive to improve the accuracy of simulation models while ensuring that generated signals are correctly linked to actual vehicle behavior. Furthermore, we are implementing computational optimizations and load reduction techniques to accelerate the simulation process.

These enhancements aim to boost both the speed and reliability of testing, thereby significantly improving the overall development workflow.

OpenSILS, on the other hand, leverages on-road driving log data to validate software behavior in an offline setting. A key focus here is achieving high fidelity in reproducing real-world phenomena, such as communication delays or processing delays caused by CPU load observed in physical environments. OpenSILS doesn't simply replay log data—it integrates adjustments based on the load and timing conditions recorded during real-world operation.

This approach enables the environment to replicate situations under conditions that closely mirror those of the original vehicle. By doing so, we can analyze issues that occurred during physical testing, pinpoint underlying causes, and effectively drive improvements in software development.

A shared challenge across both ClosedSILS and OpenSILS is the need for faster processing. By optimizing real-time capabilities within the simulation environments, we aim to deliver highly efficient testing platforms that drastically accelerate software development cycles. These ongoing initiatives address critical issues of safety and reliability in autonomous driving technology while laying the foundation for future-focused development.

Our activities integrate simulation modeling, real-world data analysis, embedded system design, and comprehensive software development, creating an optimal environment for autonomous driving innovation. Working in this challenging yet rewarding setting will enable engineers to grow their skills while contributing to foundational advancements in next-generation mobility technology.

WHO ARE WE LOOKING FOR? We are seeking driven individuals who are passionate about supporting the evolution of autonomous driving technology and actively contributing to the development and enhancement of SIL environments. We especially welcome candidates with the following skills and experience:

Knowledge of Simulation Technology: Experience with simulation environments like ClosedSILS and OpenSILS, as well as constructing and utilizing feedback loops
Data Analysis Skills: Expertise in leveraging real-world log data to accurately model and reproduce operational conditions such as load variance and processing delays
Real-Time Optimization: Understanding of computational optimization and parallel processing techniques to achieve high-speed processing within SIL environments

Commitment to Improving Accuracy: A deep understanding of simulation models and a drive to enhance the linkage precision between simulated signals and actual vehicle behavior

In this role, you will be involved in thoroughly understanding how software logic translates into real-world vehicle performance, while contributing to solving safety and reliability challenges in the industry. By optimizing real-time capabilities and improving the accuracy of phenomena analysis, you will help build the foundation for next-generation autonomous driving technology.

Our team environment is designed to integrate diverse expertise in computer science, embedded systems, control logic design, and simulation technology to tackle complex challenges. It is an ideal place for individuals who are eager to face new technical challenges and seek personal and professional growth as engineers.

What you need

At least 3 years of experience implementing code in the C or C++ programming languages
At least 3 years of practical experience in automotive software development or simulation development
At least 3 years of practical experience working as part of a team on medium-scale or larger product development projects
Practical experience working in both Business-level English and Business-level Japanese

Nice to have

Experience developing autonomous driving systems and evaluation tools
Experience designing and implementing large-scale infrastructure using cloud environments, on-premises servers, and other technologies
Proficiency in system architecture design and development processes

=========================================================================

Important Points

・All interviews will be arranged via Google Meet, unless otherwise stated.

・The same job descriptions are available in both English and Japanese; therefore, we kindly ask that you apply to only one version.

・We kindly request that you submit your resume in English, if possible. However, Japanese resumes are also acceptable. Please note that, depending on the English proficiency requirements of the role, we may request an English version of your resume later in the process.

Development and Improvement of ClosedSILS Environment

Enhancing simulation model accuracy and developing signal mapping techniques
Evaluating vehicle control logic through real-time feedback loops
Optimizing systems to achieve faster processing for high-load operations

Development and Improvement of OpenSILS Environment

Developing technologies to accurately reproduce phenomena using real-world driving log data
Designing and implementing methods to faithfully replicate load conditions and communication delays in virtual environments

※Either one of the above, or both

Improving Processing Speed Across Both SIL Environments

Enhancing real-time performance to accelerate feedback processing
Reducing computational loads and optimizing parallel processing within simulation systems

Strengthening Overall System Reliability

Developing technologies to align the behaviors of virtual environments and real-world vehicle operations

・Rental Cars Support

・In-house Training Program (software study/language study)

Our Commitment

・Any information we receive from you will be used only in the hiring and onboarding process. Please see our privacy notice for more details.

Pay and benefits

・Competitive Salary - Based on experience

・Work Hours - Flexible working time

・Paid Holiday - 20 days per year (prorated)

・Sick Leave - 6 days per year (prorated)

・Holiday - Sat & Sun, Japanese National Holidays, and other days defined by our company

・Japanese Social Insurance - Health Insurance, Pension, Workers’ Comp, and Unemployment Insurance, Long-term care insurance

・Housing Allowance

・Retirement Benefits

About Woven by Toyota

Woven by Toyota is enabling Toyota’s once-in-a-century transformation into a mobility company. Inspired by a legacy of innovating for the benefit of others, our mission is to challenge the current state of mobility through human-centric innovation — expanding what “mobility” means and how it serves society.

Our work centers on four pillars: AD/ADAS, our autonomous driving and advanced driver assist technologies; Arene, our software development platform for software-defined vehicles; Woven City, a test course for mobility; and Cloud & AI, the digital infrastructure powering our collaborative foundation. Business-critical functions empower these teams to execute, and together, we’re working toward one bold goal: a world with zero accidents and enhanced well-being for all.

=========================================================================

Legal notes

・We are an equal opportunity employer and value diversity.

Read the job posting on the Woven by Toyota site

Similar jobs at other companies

TR
Senior Simulation Engineer
Toyota Research InstituteLos Altos, CA
- Senior
- Hybrid
- Software engineering
$180K–$259K / yr
Posted Aug 5, 2025
Sr. Test Automation Engineer (SIL/HIL Infrastructure)
42dotSunnyvale
- Senior
- Infra, platform & SRE
$185K–$250K / yr
Posted Jun 19, 2026
ADAS/AD Simulation Engineer - Tools
Lucid MotorsSouthfield, MI +1
- Software engineering
Pay not posted
Posted Oct 12, 2026
Automated Driving Performance HIL Infrastructure Engineer
General MotorsMilford, Michigan
- Hybrid
- Infra, platform & SRE
Pay not posted
Posted 18 days ago
Software Engineer, Simulation
WayveLondon, United Kingdom
- Hybrid
- Software engineering
- Visa sponsorship in the job text
Pay not posted
Posted Oct 2, 2026
TR
Senior Data Engineer, Large Behavior Models
Toyota Research InstituteLos Altos, CA
- Senior
- Hybrid
- Data engineering
$180K–$259K / yr
Posted Aug 4, 2025

Source: the Woven by Toyota Lever job board. We last checked this job 5 h ago. We first saw it 6 days ago. A job on a job board does not always mean that the team interviews people now. We found this job board in a public list. We did not yet compare it with the careers page of the company.

Interview questions

No one has reported an interview at Woven by Toyota yet. Did you interview there? Add the questions.

WB

Woven by Toyota

Open tech jobs: 59
With posted pay: 12%
Median posted base: $140K–$230K

About Woven by Toyota: funding, hiring and pay