Enabling a Quantum Revolution
Quantum computing has the potential to transform how we tackle hard computational problems. At Horizon Quantum, we're building tools to empower developers to redefine what's possible.
Who We Are
Horizon Quantum is developing a new generation of programming tools to simplify and expedite the process of developing software for quantum computers.
By removing the need for prior quantum computing experience to develop applications for quantum hardware, Horizon’s tools will make the power of quantum computing accessible to every software developer.
Why Horizon Quantum
At Horizon Quantum, we are bridging the gap between quantum hardware and software developers.
We make programming tools that allow developers to work at higher levels of abstraction rather than focusing on quantum physics or hardware requirements.
To achieve this, we are automating the construction of quantum algorithms from classical code and making programming a quantum computer more like conventional software engineering. Our goal is to enable all developers, regardless of their quantum expertise, to harness the power of quantum computers.
Learn more about our technology
A Team With Science at Heart
At Horizon Quantum, our interdisciplinary team blends deep scientific expertise with proven leadership in the technology industry. Educated at premier institutions including Oxford, MIT, and Caltech, our core scientific leaders—including our CEO, Chief Scientist, and Principal Scientists—bring decades of research experience in quantum computing and related fields. This foundation is complemented by seasoned professionals from industry giants, ensuring that Horizon's leadership is well-versed in both groundbreaking research and practical application.
Leadership

Dr Joe Fitzsimons
Dr Joe Fitzsimons
Chief Executive Officer

Dr Si-Hui Tan
Dr Si-Hui Tan
Chief Science Officer

Amanda Chew
Amanda Chew
VP of Product

Eoin Scanlon
Eoin Scanlon
VP of Operations

Philip Tan
Philip Tan
VP of Commercial Operations

Dr Raymond Lloyd
Dr Raymond Lloyd
VP of Engineering

Dr Denis Chevallier
Dr Denis Chevallier
Principal Scientist

Dr Jansen Zhikuan Zhao
Dr Jansen Zhikuan Zhao
Principal Scientist

Dr Ryan Arlitt
Dr Ryan Arlitt
Principal Engineer

Kyle Chu
Kyle Chu
Principal Engineer

Sofia Boggio
Sofia Boggio
Director of Design

Sumanth Puttur
Sumanth Puttur
Director of Human Resources

Alvin Tan
Alvin Tan
Director of Finance

Yanina Blaclard
Yanina Blaclard
Director of Marketing and Communications
Board

Dr Joe Fitzsimons
Dr Joe Fitzsimons
Chief Executive Officer

Dr Si-Hui Tan
Dr Si-Hui Tan
Chief Science Officer

Hsien-Hui Tong
Hsien-Hui Tong
Executive Director, SGInnovate

Dr Ryan Arlitt
Dr Ryan Arlitt
Principal Engineer
Biography
Ryan is a Principal Engineer at Horizon.
He has worked on a variety of interdisciplinary research projects across fields and topic areas including engineering design, mechanical engineering, systems engineering, computer science, materials science, cognitive science, education, and cyber physical security. He specialises in fuzzy front-end design research topics.
Prior to joining Horizon Quantum Computing, Ryan held positions as an assistant professor of mechanical engineering at the Technical University of Denmark, and as a postdoctoral scholar at the Singapore University of Technology and Design.
Ryan has a PhD in Mechanical Engineering from Oregon State University, where his research focused on computational tools for design-by-analogy. He also has degrees in Systems Engineering (MS) and Interdisciplinary Engineering (BS), both from the Missouri University of Science and Technology.
Join Us
At Horizon Quantum, you'll have the opportunity to work with a talented and passionate team that is pushing the frontiers of one of the most promising technologies of our time.
We are seeking professionals across a range of business functions, from science and engineering to commercial operations, who are eager to contribute to our effort.
Can’t find a match in the open positions but think you would be a great fit for our team? Reach out to us at careers@horizonquantum.com.