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

Sumanth Puttur
Sumanth Puttur
Director of Human Resources
Biography
Sumanth is leading Horizon’s Human Resources.
Sumanth’s career is spanning 20 years across Tech, HR and Operations. Prior to joining Horizon, Sumanth was at Google heading the Talent Intelligence team and Scaled Talent Acquisition team for APAC recruiting. He has worked across multiple roles in HR including building teams from scratch and scaling them rapidly. Before that, Sumanth worked in the semiconductor Industry at Lam Research (formerly Novellus), holding multiple roles including as an Application Engineer and a Software Development Manager.
Sumanth holds a Bachelor in Engineering from VTU (India) and an MBA from NUS (Singapore).
Outdoor lover, Sumanth appreciates hiking, running and long-distance motorcycling. Climbing is something that he picked up recently with his daughter and enjoys indulging in on weekends.
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.