Senior Simulation Engineer, Robotics & Physical AI

ATOMS Careers page; San Francisco (CA); On-site; USD 195,000 - 246,000; Full time

Benefits offered by this job

Healthcare

Equity

401(k)

Team lunch in SoMa

Job summary

Atoms seeks a Senior Software Engineer to build the log replay and scenario execution systems at the core of our simulation platform. You will take a recorded log from storage, transform it into a replayable test case, and own execution, determinism, and reporting across on-road and off-highway programs.

You will develop tooling for CI integration, performance metrics, and scalable testing, collaborating with robotics and hardware teams to ensure repeatable results and robust software versions.

Qualifications

• Bachelor's degree in Computer Science, Robotics, Electrical Engineering, or related field with 5+ years of software engineering experience, or a master's with 3+ years required.
• Proficiency in C++ and Python, including the ability to read, navigate, and debug large codebases.
• Experience building and operating data or test infrastructure at scale, including pipelines, batch execution, storage and indexing.
• Experience with simulation, log replay, or large-scale automated testing for robotics or autonomous vehicles.
• Working experience with a robotics middleware and its logging and replay tooling.
• Experience handling autonomous driving or robotics sensor data across multiple modalities and timestamps, including camera, LiDAR, and radar.
• Practical understanding of determinism and reproducibility, including clock control, seed management, and configuration pinning.
• Experience integrating test workloads into continuous integration.
• Working fluency with modern AI coding and agentic development tools.
• Clear written communication covering design notes and test results.
• Willingness to travel occasionally to deployment and test sites.
• Ability to work onsite five days a week in San Francisco.

Responsibilities

• Log replay: build the pipeline that converts recorded logs into replayable test cases, including ingest, indexing, retrieval, and replay of a specific run on demand.
• Scenario execution: build the execution layer that runs a scenario identically every time, including clock control, seed and configuration management, and results traceable to a software version.
• Continuous integration: integrate simulation into CI. Maintain the commit, nightly, and regression workflows, and keep failures attributable.
• Metrics and reporting: implement the pass criteria and metrics a release is judged against, and the reporting that reduces a batch of failing runs to an actionable list.
• Scale and cost: run large batches efficiently, track the cost of a simulation run, and reduce it as volume grows.
• Tooling: build the interfaces, visualizations, and command-line tools that make the platform usable by engineers who did not build it.
• Cross-functional work: work with autonomy and robotics on failure definitions, with bench and hardware-in-the-loop engineering on the path from simulation to bench to vehicle.

Skills

C++

Python

Codebase navigation

Data infrastructure

Robotics/AV domain

Distributed systems

Education

Bachelor's degree in CS/Robotics/EE or related field

Master's degree in related field

Tools

Robotics middleware

CI/CD tooling

Job description

Atoms seeks a Senior Software Engineer to build the log replay and scenario execution systems at the core of our simulation platform. You will take a recorded log from storage, transform it into a replayable test case, and own execution, determinism, and reporting across on-road and off-highway programs.

You will develop tooling for CI integration, performance metrics, and scalable testing, collaborating with robotics and hardware teams to ensure repeatable results and robust software versions.