Build the
with us
We're hiringWe're building on the bleeding edge of AI, simulating human preference and actions via our revealed preference engine. We're already working with category leaders, from hospitality to AI startups, to tell them what their customers want in minutes.
Rehearsals is backed by a16z, 25madison, Factorial Fund, 1Flourish, and notable angel investors from DeepMind and OpenAI including Logan Kilpatrick. The founding team is ex-DeepMind, Databricks, and Google Labs.
We have founded acquired companies (x2), led Gemini computer-use and tool-use, built Google Lens, post-trained SOTA coding models, and been awarded 25+ patents between us. Our customers include F50 public companies, unicorn tech startups and household name B2C products.
CEO & CO-FOUNDER
Liam Bolling
Liam led Project Mariner at Google Labs, where he helped launch the Gemini 1.5 API and explored new ways to bring generative AI to developers. He's a former Product Manager at Microsoft and Google Maps, and previously founded a VC‑backed startup. Liam has a computer science background and is a content creator.
CEO & CO-FOUNDER
Liam
Bolling
Liam led Project Mariner at Google Labs, where he helped launch the Gemini 1.5 API and explored new ways to bring generative AI to developers. He's a former Product Manager at Microsoft and Google Maps, and previously founded a VC‑backed startup. Liam has a computer science background and is a content creator.
CTO & CO-FOUNDER
David Schmetterling
David led the Computer Vision team at Wayfair, where he shipped their first AR/VR app and was featured by Apple, and built teams from the ground up. He's also founded startups in blockchain and web design. David is a Boston College alum, he brings both technical depth and product intuition to everything he builds.
CTO & CO-FOUNDER
David
Schmetterling
David led the Computer Vision team at Wayfair, where he shipped their first AR/VR app and was featured by Apple, and built teams from the ground up. He's also founded startups in blockchain and web design. David is a Boston College alum, he brings both technical depth and product intuition to everything he builds.
CO-FOUNDER
Daniel Katz
Daniel is a founder and ML researcher with experience at Databricks and Microsoft. His last company, focused on automating healthcare ops, was acquired by the largest virtual autism care provider in the U.S. Daniel is passionate about building intelligent systems that feel natural, adaptive, and deeply useful.
CO-FOUNDER
Daniel
Katz
Daniel is a founder and ML researcher with experience at Databricks and Microsoft. His last company, focused on automating healthcare ops, was acquired by the largest virtual autism care provider in the U.S. Daniel is passionate about building intelligent systems that feel natural, adaptive, and deeply useful.
FOUNDING ENGINEER
Brian Oppenheim
Brian was previously a Senior ML Engineer at Google, where he helped launch Gemini Tool Agents at DeepMind and drove $100M+ in impact through Search Ads models. Brian also created and taught Brown University's graduate Deep Learning course. Brian brings rare experience at the intersection of frontier AI and scaled real‑world systems.
FOUNDING ENGINEER
Brian
Oppenheim
Brian was previously a Senior ML Engineer at Google, where he helped launch Gemini Tool Agents at DeepMind and drove $100M+ in impact through Search Ads models. Brian also created and taught Brown University's graduate Deep Learning course. Brian brings rare experience at the intersection of frontier AI and scaled real‑world systems.
FOUNDING ENGINEER
Reid Brostoff
Reid previously worked on AI engineering at IBM and led multimodal AI ad generation tools as part of an acquihire to Omnicom. Reid holds a degree in Electrical and Computer Engineering from the University of Wisconsin. Reid brings a unique blend of creative AI and infrastructure experience to the team.
FOUNDING ENGINEER
Reid
Brostoff
Reid previously worked on AI engineering at IBM and led multimodal AI ad generation tools as part of an acquihire to Omnicom. Reid holds a degree in Electrical and Computer Engineering from the University of Wisconsin. Reid brings a unique blend of creative AI and infrastructure experience to the team.
CHIEF DESIGN OFFICER
Jess Lee
Jess was one of the founding designers of Google Lens and led design for multimodal AI and AR Camera experiences at Google. She was awarded 25+ design patents for real-time multimodal interactions, scene understanding, and audiovisual interfaces. Before Google, she worked at design agencies Huge and Teehan+Lax (acquired by Meta) designing for a breadth of industries. Jess brings a rare blend of craft, systems thinking, and a vision for intuitive AI experiences.
CHIEF DESIGN OFFICER
Jess
Lee
Jess was one of the founding designers of Google Lens and led design for multimodal AI and AR Camera experiences at Google. She was awarded 25+ design patents for real-time multimodal interactions, scene understanding, and audiovisual interfaces. Before Google, she worked at design agencies Huge and Teehan+Lax (acquired by Meta) designing for a breadth of industries. Jess brings a rare blend of craft, systems thinking, and a vision for intuitive AI experiences.
HEAD OF SALES
Neil Ahlsten
Neil leads sales and go-to-market at Rehearsals, bringing an investor-operator lens to building durable revenue. He is a Partner at 1Flourish, where he invests in and advises early-stage technology companies, and is also an active angel investor in startups across consumer and enterprise. Previously at Google, Neil worked on commercial strategy and partnerships for new products. He also founded and scaled Abide, a consumer subscription business used by millions.
HEAD OF SALES
Neil
Ahlsten
Neil leads sales and go-to-market at Rehearsals, bringing an investor-operator lens to building durable revenue. He is a Partner at 1Flourish, where he invests in and advises early-stage technology companies, and is also an active angel investor in startups across consumer and enterprise. Previously at Google, Neil worked on commercial strategy and partnerships for new products. He also founded and scaled Abide, a consumer subscription business used by millions.
COULD BE YOU
Head of Growth
We're looking for a Head of Growth to own the strategy and execution behind Rehearsals' growth engine. This is a hybrid role, equal parts sales leader, marketer, and creative operator. You'll build our pipeline, lead outbound and inbound efforts, drive top-line growth, and shape how the world understands what we're building. You'll also act as the voice of the customer, translating insights into go-to-market strategy and helping guide the product roadmap.
COULD BE YOU
Head
of Growth
We're looking for a Head of Growth to own the strategy and execution behind Rehearsals' growth engine. This is a hybrid role, equal parts sales leader, marketer, and creative operator. You'll build our pipeline, lead outbound and inbound efforts, drive top-line growth, and shape how the world understands what we're building. You'll also act as the voice of the customer, translating insights into go-to-market strategy and helping guide the product roadmap.
COULD BE YOU
Founding Engineer
Build the full-stack experience of how the world will experience the future of AI simulations in a modern web dev stack (TypeScript, Next, React). Work on our data stack, including being the in-house expert on data scraping. Run experiments to improve our revealed preference and simulation engines. Work on infrastructure such as research tooling, CI/CD, and internal code review agents that scales our impact. We are particularly interested in engineers with strong foundations who have a particular aptitude in either data or front-end.
COULD BE YOU
Founding
Engineer
Build the full-stack experience of how the world will experience the future of AI simulations in a modern web dev stack (TypeScript, Next, React). Work on our data stack, including being the in-house expert on data scraping. Run experiments to improve our revealed preference and simulation engines. Work on infrastructure such as research tooling, CI/CD, and internal code review agents that scales our impact. We are particularly interested in engineers with strong foundations who have a particular aptitude in either data or front-end.