Software Engineer, Simulation

PlusAI

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Santa Clara, CA hybrid Until 8/21/2026 2+ years exp First posted May 28, 2026 Last posted May 28, 2026
Job description
PlusAI is a Physical AI company pioneering AI-based virtual driver software for factory-built autonomous trucks. Headquartered in Silicon Valley with operations in the United States and Europe, Plus was named by Fast Company as one of the World’s Most Innovative Companies. Partners including TRATON GROUP’s Scania, MAN, and International brands, Hyundai Motor Company, Iveco Group, Bosch, and DSV are working with Plus to accelerate the deployment of next-generation autonomous trucks. If you’re ready to make a huge impact and drive the future of autonomy, Plus is looking for talented individuals to join its fast-growing teams.

About the role:
The Scenario Simulation team is responsible for building a simulation engine that simulates the systems downstream of the perception system. The team works on realistic actor behaviors and other infrastructure tooling for generating diverse scenarios to validate Autonomy. You will have an opportunity to drive immediate user value while architecting advanced, AI-powered frameworks for long-term safety validation.

Responsibilities:

  • Design scalable ML workflows for generating AV scenarios - ranging from traffic simulations to synthetic scenario creation from a natural language specification.

  • Contribute to tooling for migrating scenario creation using the traditional approach to AI-based scenario understanding and validation

  • Own the development and upkeep of the simulation framework, driving its reliability and performance to unblock all technical stakeholders.

  • Collaborate directly with internal customers and partner teams to provide solutions for their test creation workflows.

  • Have an opportunity to tackle simulation and autonomy evaluation challenges across various areas of the autonomy system, including motion planning, mapping, Controls.

  • Create and extend software for behavior, pathfinding, road networks, spatial queries, collision detection, vehicle control, vehicle dynamics, etc.

Required Qualifications:

  • MS or higher degree in Computer Science, Machine Learning, or related field

  • Good development skills in modern C++ and Python

  • Proficiency in ML libraries and experience in transformer and diffusion architectures

  • Basic understanding of generative models

Desirable Qualifications:

  • 2+ years of Industry experience in ML and C++ software

  • Familiarity with AV simulation environments and driving datasets

Your opportunities joining PlusAI
Work, learn and grow in a highly future-oriented, innovative and dynamic field.
Wide range of opportunities for personal and professional development.
Catered free lunch, unlimited snacks and beverages.
Highly competitive salary and benefits package, including 401(k) plan.

Compensation (from employer):
120000–150000 USD per year

About this role

Summary

Develop and maintain simulation frameworks for autonomous vehicle scenarios, collaborating on AI-based testing tools.

Job title

Software Engineer, Simulation

Experience level

2+ years

Minimum experience

2+ years exp

Industry

software

Location requirements

Santa Clara, CA; on-site; no remote work specified.

Salary

$120k–$150k

Management role

No

Skills & keywords

Required skills

C++pythonmachine learningtransformerdiffusion

Preferred skills

AV simulation environmentsdriving datasets

Specializations

machine learningsimulationautonomyC++python
Locations

Structured locations inferred from the posting.

Santa Clara, CA, USA

On-site City
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