Join Us in Building the Future of Physical AI

We build the simulation infrastructure for physical AI. We develop GenAI-powered tools that enable robotics teams to create unlimited, diverse training data and realistic evaluation environments. Our team spun out of MIT CSAIL, where we pioneered techniques that trained robots using only synthetic data. We're helping robotics companies transition to AI-native development workflows.

We're a lean team of researchers and engineers from DeepMind, OpenAI, FAIR, and top universities including MIT, Berkeley, Caltech, Harvard, and Yale. We've published best papers at top robotics conferences, won International Olympiad medals, and built core systems at leading AI labs. We believe in building complex systems that bring simplicity to our customers.

Global Team: We operate across US and China time zones. We value people who communicate proactively, document thoroughly, and take ownership of smooth handoffs across teams.

Note: For this role, robotics industry experience is strongly preferred. We're especially interested in candidates from robotics companies (autonomous vehicles, industrial automation, logistics robotics) who understand the technical landscape and customer needs.

What to Expect

As our Sales Lead, you will drive revenue by bringing our simulation platform to robotics companies. You'll own the full sales cycle from prospecting through close, working closely with solutions engineering to ensure customer success.

What You'll Do

Own full sales cycle for enterprise robotics customers
Develop account strategies for target companies
Collaborate with solutions team on technical scoping and proposals
Build and maintain pipeline through outbound and inbound leads
Provide market feedback to product and leadership teams

What You'll Bring

3-5 years in B2B sales, preferably in robotics, automation, or enterprise software
Technical credibility to discuss simulation, ML, and robotics
Track record of meeting or exceeding quota
Experience with consultative, solution-oriented sales
Strong communication and presentation skills

Nice to Have

Background selling to robotics or manufacturing companies
Experience with land-and-expand or usage-based pricing models
Network in the robotics industry

We believe diverse teams build better products. Even if you don't meet every requirement listed, we encourage you to apply if you're excited about this role and our mission.

About the company

FortyFive Labs builds simulation infrastructure for physical AI to help robotics teams generate diverse training data and realistic evaluation environments. Its cloud-based Vuer-Hub Platform hosts and lets users interact with simulated robotics worlds, while the Vuer Python SDK streams simulation components on demand. It is developing a virtual-to-real (V2R) pipeline and an AI-powered world-builder called LucidSim to translate symbolic simulations into photoreal data and reusable environments. The goal is to make AI models safer and more capable by providing better data, accurate physics, and verifiable simulations through an integrated AI-native toolchain.

Company Size

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Company Stage

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Total Funding

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Headquarters

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Founded

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Simplify's Take

What believers are saying

Vuer Hub launched production hosting and environment registry in June 2026.
FortyFive publicly recruited engineers in July 2026, signaling active product expansion.
Nebius recognized FortyFive in September 2025, validating investor and technical credibility.

What critics are saying

No disclosed funding or scale means runway risk stays opaque into 2026.
Open-source simulators from NVIDIA, MuJoCo, and Habitat-Sim compress pricing and adoption.
If Vuer Hub stays niche, FortyFive loses before enterprise robotics budgets scale.

What makes FortyFive Labs unique

MIT CSAIL spinout FortyFive combines simulation, synthetic data, and robotics workflows.
Vuer Hub lists MuJoCo, Isaac Gym, Habitat-Sim, and PyBullet in production.
LucidSim targets photorealistic training data from symbolic simulations, a rare full-stack approach.

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FortyFive Labs

Sales Lead

About the job