Prompt Engineer

Woven by Toyota is the mobility technology subsidiary of Toyota Motor Corporation. Our mission is to deliver safe, intelligent, human-centered mobility for all. Through our Arene mobility software platform, safety-first automated driving technology and Toyota Woven City — our test course for advanced mobility — we’re bringing greater freedom, safety and happiness to people and society. 

Our unique global culture weaves modern Silicon Valley innovation and time-tested Japanese quality craftsmanship. We leverage these complementary strengths to amplify the capabilities of drivers, foster happiness, and elevate well-being.

You will be an integral part of a team responsible for delivering a powerful, scalable next-generation vehicle platform for future Toyota and Lexus vehicles. This platform will comprise a new centralized electrical architecture powered by Arene, Woven Planet's flagship programmable automotive software system that integrates on-vehicle OS and data collection services with the cloud.

This team will deliver concept hardware and software solutions driven by high-quality UX research that defines an end-to-end product definition for Toyota's next-generation vehicles. This concept work will produce a full-stack solution starting with the digital services, the programmable software system, and the underlying compute and electrical architecture of the vehicle.

This team represents the cutting edge of software and hardware development at Toyota. Your work will marry the speed and agility of Silicon Valley software development with the standards of functional safety, craftsmanship, and time-tested quality of Toyota products in a fast-paced, prototyping environment.

As a member of the Products and Special Programs team, you will work on developing applications for a modern vehicle operating system and platform, focusing on utilizing LLMs and NLP for delivering unique product experiences in next generation vehicles.


  • We design, develop and deploy software for vehicles
  • We develop software modules that enable user interactions through natural conversations
  • Develop applications and software for both Linux and RTOS platforms
  • Fine-tune LLMs for domain-specific prompts and applications
  • Deploy and optimize LLMs for inference on edge AI hardware
  • Work closely with team members with different skill sets and expertise (designers, researchers), other teams, and external partners.

  • B.S., M.S. in Computer Science, Electrical Engineering, or a related field
  • Strong experience in machine learning and deep neural networks
  • Experience using and building applications powered by LLMs
  • Experience with LangChain or similar LLM management frameworks is a plus
  • Strong programming skills in C++ and/or Python
  • Multi-threaded, multi-core and multi-system programming is a plus
  • Software development for User Interfaces (IVI, IC) is a plus
  • Experience with expert systems and NLP processing a plus
  • Passionately motivated to take ideas from R&D phase to a product
  • Good team player with great communication skills (making presentations)
$112,000- $184,000 a year
Your base salary is one part of your total compensation. At Woven by Toyota, we offer a base salary, a bonus, and a comprehensive benefits package. The California pay scale for this full time position is $112,000- $184,000. The total compensation offered to an employee will be dependent upon the individual's skills, experience, qualifications, location, and level.

We are committed to creating a modern work environment that supports our employees and their loved ones. We offer many options of the best programs to allow you to do your most meaningful work and to help you shape the future of mobility.
・Excellent health, wellness, dental and vision coverage
・A rewarding 401k program
・Flexible vacation policy
・Family planning and care benefits

By submitting your application you agree to the following terms:

Our Commitment
・We are an equal opportunity employer and value diversity.
・We pledge that any information we receive from you will be used ONLY for the purpose of hiring assessment.

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