--- title: 'Senior Simulation Software Engineer at PlusAI' canonical: 'https://feeny.ai/job/senior-simulation-software-engineer-plusai-santa-clara-j0eghaqdq4hv' type: 'job' last_seen: '2026-09-08' --- # Senior Simulation Software Engineer at PlusAI - **Company:** PlusAI - **Location:** Santa Clara, CA - **Compensation:** $130k–$200k - **Employment:** full-time - **Work type:** hybrid - **Posted:** 2026-08-10 - **Last confirmed live:** 2026-09-08 - **Apply:** https://jobs.lever.co/plus-2/4572f534-2f3c-4d4c-9fb0-55838bf7795f ## 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. We are looking for a Senior Simulation Software Engineer to build and scale the simulation infrastructure that powers our autonomous vehicle development. You will architect simulation pipelines, leverage AI agentic workflows to analyze simulation results, and drive improvements in simulation fidelity to validate autonomy systems and enable critical program milestones. This role offers the opportunity to drive immediate user value while building advanced, AI-powered frameworks for long-term safety validation. ## Responsibilities Design and build AI agentic workflows that automatically analyze simulation results, identify failures, and surface root causes across large-scale test runs, translating them into actionable insights for engineering teams. Architect and build scalable simulation pipelines, including the metric evaluation framework, and conduct in-depth analysis of road test and simulation data to identify trends, anomalies, and key performance indicators that enhance model accuracy and validate autonomy performance. Identify, quantify, and reduce sources of divergence between simulation and real-world behavior, leveraging AI and data-driven techniques to increase simulation fidelity across actor behaviors, sensor models, and system dynamics. Monitor and improve the performance, scalability, testing, and reliability of the platform. Collaborate with cross-disciplinary teams—including simulation, onboard, systems engineering, and data science—to reproduce and resolve issues encountered during real-world road tests. Work with other engineers to design the long-term architecture of the system. Ensure that technical work meets customer requirements, regulatory standards, and company quality policies, in accordance with the company's Quality Management System (QMS), and contribute to continuous improvement efforts. Required Skills: - MS with 3+ years of relevant experience, or a PhD new grad, in mechanical, electrical, aerospace engineering, physics, computer science, or a related field. - Experience building LLM-powered or agentic workflows for data analysis, evaluation, or automation. - Experience quantifying or improving simulation fidelity / closing the sim-to-real gap (e.g., sensor modeling, actor behavior modeling, scenario generation). - Proficient in Python or C++, with experience building scalable data processing systems or evaluation frameworks. - Ability to solve open-ended technical challenges. - Excellent communication skills and the ability to collaborate effectively in a team setting. Preferred Skills: - Experience with autonomous vehicle or robotics simulation and related concepts. - Familiarity with LLM agent frameworks (e.g., LangChain, LangGraph, or similar) and prompt/tool-orchestration patterns. - Experience developing metrics, user-facing APIs, or interfaces between system components. ## 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. ## About PlusAI ## Company Overview - **One-liner**: PlusAI develops AI-based autonomous driving software for heavy trucks, powering Level 4 (L4) virtual driver systems that enable trucks to operate without human intervention on highways. - **Entity Type**: Private (planning to go public via a SPAC merger with Churchill Capital Corp IX, NYSE: PLAV – conflicting reports indicate the reverse merger may have been cancelled) - **Headquarters**: Santa Clara, California, United States - **Founded**: 2016 - **Founders**: Not publicly available in provided sources ## Core Business - **Primary industry**: Autonomous driving / automotive technology - **Target customers**: B2B – global truck manufacturers (OEMs) and large freight fleets - **Mission**: To make trucking safer, more efficient, and more sustainable by deploying AI-powered autonomous driving at scale ## Products & Services - **SuperDrive**: L4 autonomous driving system that serves as a virtual driver for factory-built heavy trucks. Designed to be installed by OEMs and monetized on a per-mile usage basis. - **PlusDrive**: A driver-assist version of SuperDrive that keeps a human in the cabin to oversee the system. Already in commercial use, reducing driver fatigue and fuel costs. - **SuperDrive HyperFoundry**: A suite of proprietary AV data and tools (data acquisition, auto-labeling, 3D reconstruction, neural simulation) sold to third-party customers today, generating revenue before the full L4 launch. ## Market Standing - **Valuation/Market Cap**: Not publicly disclosed; the SPAC merger was valued at $300M (conflicting reports of cancellation). - **Key Metric**: Annual revenue of $4M (as of latest data); total funding of ~$1.3B across 8 rounds. - **Notable Investors/Partners**: TRATON GROUP (Scania, MAN, International), Hyundai Motor Company, Iveco Group, Bosch, DSV, Ryder. - **Growth Signals**: - Active trial with Ryder and International on a 600+ mile daily route (I-35 corridor) – 60,000+ cumulative miles, approaching 100 runs. - Recent software upgrades enabling night driving and construction zone capabilities. - Partnered with multiple global OEMs to install SuperDrive on factory-built trucks – no retrofitting required. - 7M+ miles of L4-validated data collected. ## Competitive Advantages - **Asset-light software model**: Zero manufacturing capex – PlusAI is a pure-play software provider, avoiding heavy hardware costs. - **OEM integration**: Factory-installed by partners like TRATON and Hyundai, providing a scalable path to thousands of trucks. - **Proprietary data moat**: Over $500M in R&D investment and 7M+ miles of validated data enable advanced AI models (end-to-end and vision-language-action). - **Capital efficiency**: Path to cash-flow positive in 2027E, with lower OpEx than key competitors. ## Strategic Focus - **Near-term**: Commercial launch of driverless L4 trucks in 2027, targeting revenue from per-mile usage. - **Current revenue generation**: Selling AV data and tools (HyperFoundry) to third parties. - **R&D edge**: Leveraging large AI models and generative AI to continuously improve the virtual driver’s capabilities and expand the Operational Design Domain (ODD). ## Why Work Here - **Culture & ratings**: Employer rating of 4.1/5 (30 reviews), with high marks for work-life balance (4.6), culture (4.7), and career growth (4.6). - **Engineering focus**: 105 technical employees (23% of workforce); active job postings (38) include senior ML infrastructure, perception, planning, simulation, and engineering intern roles. - **Global offices**: HQ in Santa Clara, CA, with offices in Fremont, Cupertino, and Munich, Germany. Workforce spans 8 countries. - **Notable perks**: Opportunity to work on cutting-edge autonomous driving technology with partners like TRATON, Hyundai, and Bosch. Strong talent pipeline from Stanford, CMU, and alumni at Waymo, NVIDIA, Apple. ## Sources 1. [LinkedIn – PlusAI](https://linkedin.com/company/plusai) 2. [CB Insights – PlusAI](https://www.cbinsights.com/company/plusai) 3. [PitchBook – PlusAI](https://pitchbook.com/profiles/company/180375-76) 4. [PlusAI Presentation (April 2026)](https://www.plus.ai/documents/plusai-presentation-april-2026.pdf) 5. [PlusAI Careers Page (Lever)](https://jobs.lever.co/plus-2) ## Other roles at PlusAI - [Senior/Staff Software Engineer, Motion Planning](https://feeny.ai/job/senior-staff-software-engineer-motion-planning-plusai-santa-clara-x1pkbe5ekz4a) — Santa Clara, CA - [Senior/Staff Software Engineer (Machine Learning Runtime), Motion Planning](https://feeny.ai/job/senior-staff-software-engineer-machine-learning-runtime-motion-planning-plusai-3ayj39bayq6s) — Santa Clara, CA - [Senior/Staff Machine Learning Engineer (Reinforcement Learning), Motion Planning](https://feeny.ai/job/senior-staff-machine-learning-engineer-reinforcement-learning-motion-planning-ww5yty7kqtr9) — Santa Clara, CA - [Senior/Staff Machine Learning Engineer, Motion Planning](https://feeny.ai/job/senior-staff-machine-learning-engineer-motion-planning-plusai-santa-clara-4sa79vvqk8c2) — Santa Clara, CA - [Data Engineer (SE / Sr SE)](https://feeny.ai/job/data-engineer-se-sr-se-plusai-santa-clara-90rq3eg8kg6j) — Santa Clara, CA - [Software Engineer (SE / Sr SE), Fullstack](https://feeny.ai/job/software-engineer-se-sr-se-fullstack-plusai-santa-clara-ctmf6p8xwe3x) — Santa Clara, CA - [Senior Machine Learning Engineer, Perception](https://feeny.ai/job/senior-machine-learning-engineer-perception-plusai-santa-clara-av26fffj0ehh) — Santa Clara, CA - [Principal Engineer, Mapping and Localization](https://feeny.ai/job/principal-engineer-mapping-and-localization-plusai-santa-clara-pqv0j6919kv9) — Santa Clara, CA - [Perception Validation Engineer](https://feeny.ai/job/perception-validation-engineer-plusai-santa-clara-7a9pw48p4rm5) — Santa Clara, CA - [Software Engineer (SE / Sr SE), Applied ML & Data Mining](https://feeny.ai/job/software-engineer-se-sr-se-applied-ml-data-mining-plusai-santa-clara-d91s8gp5zagj) — Santa Clara, CA