Careers

Working Here

At Horizon Quantum, you’ll find a culture built on shared purpose, open debate, and hands-on problem solving.

A Horizon team member standing next to a podium with the Horizon Quantum backdrop behind her as she gives a presentation

A Horizon Quantum team member smiling and holding up the peace sign. He is standing outside in front of a lot of greenery at the Horizon offsite in Ireland

A Horizon Quantum team member sitting next to a banquet table covered in a white tablecloth, typing on his laptop which is resting on his lap.

Four Horizon team members outside at the company offsite, participating in a group activity. One holds a table while the other three are laughing.

A Horizon team member is staring at his laptop which is on a banquet table. He's laughing while another team member looks over his shoulder, also laughing.

Two Horizon Quantum team members laugh at something we can't see. They're outside at the company offsite. On woman has a hood pulled up over her ball cap, as if it's been raining recently, and the other is bundled up in a coat.

A Horizon team member leans against her desk in the Singapore office, talking to a woman whose back is towards the camera.

Two Horizon team members speak outside at the company offsite. One has his back towards the camera, but the other looks focused with both hands in his coat pockets.

A group of nine Horizon team members relax in a seating area containing two sofas and a table. Some sit on the sofas. Others perk on the arms and back of them. Others stand. On the table in the middle, there is a laptop and one team member is at work on it, with his hand on the mouse. There is also a chess board on the table, set for a game.

A Horizon team member sits in his chair in the Singapore office, looking up at two people talking. Their faces are off-camera.

Help build what comes next

We’re bridging the gap between today’s quantum hardware and tomorrow’s applications—and that takes a team of people who are curious, rigorous, and unafraid to tackle hard problems.

Shaping the future of computing together

At Horizon Quantum, we see quantum computing as more than an incremental step—it’s a revolution in how computation itself is conceived. Quantum computing represents a fundamental shift in the way information is processed—one that’s positioned to transform technology as profoundly as the emergence of classical computing.

The challenges are immense, but so is the opportunity. We’re looking for people ready to take on problems that have never been solved before.

Here, you’ll work alongside a talented and collaborative team of scientists, engineers, and operations professionals who share a common goal: to turn the promise of quantum computing into practical reality. Whether your expertise lies in research, hardware, software, or business operations, you’ll play a role in advancing one of today’s most transformative technologies.

Perspective from our people

A Horizon team member sits perched on the arm of a sofa. She is laughing. her colleague is standing next to her, and he is smiling.

“Nerdy fellow colleagues, stimulating conversations, and unlimited coffee: there isn't much else that a quantum physicist would want from an industry job. Add to that provable opportunities for career growth, and that's what working at Horizon is like.”

Dr Pooja Jayachandran
Staff Scientist

A Horizon team member stands outside at the 2025 offsite. He's smiling and talking with another team member, whose back is to the camera.

“What excites me most about working at Horizon is the work itself—bridging the gap between classical and quantum in a very tangible way. Having our own in-house testbed means we’re not just theorising; we’re building, testing, and learning every day. Helping drive this part of the company forward is deeply rewarding and gives real meaning to the work I do.”

Dr Denis Chevallier
Director of Hardware

A Horizon team member laughs, looking at something off-camera. He's standing in front of a banner with an error pointing toward the word "Deploy," which is advertising Triple Alpha's core capabilities.

“We aren't just solving complex problems with the latest tools; we’re doing it in an environment where every engineer thrives and has the autonomy to own their impact. Growth isn't just a personal goal: it’s a collective one. There is an incredible scope to sharpen your own skills while mentoring others, creating a virtuous cycle of learning that keeps us at the forefront of the industry. For an engineer or scientist, it’s like a learning factory where you’ll deepen your technical skills, boost your organisation skills, and develop the soft skills you’ll carry forever.”

Dr Ray Lloyd
VP of Engineering

A Horizon team member stands in front of Ember-1, Horizon's quantum computer. She is smiling. There are bright lights behind her. The quantum computer is contained in a large black refrigerating unit.

“At Horizon Quantum, you work with a smart, perseverant, and very collaborative team building together software infrastructure that could define the way quantum computers could be programmed tomorrow. Working with this team at the dawn of a new technological paradigm is often awe inspiring and always rewarding.”

Yanina Blaclard
Vice President of Marketing and Communications

A Horizon team member sits at a banquet table, laughing at another team member whose back is to the camera.

“At Horizon Quantum, we're tackling hard problems in an exciting field that's moving forward. As a member of the science team, I get to work with a dedicated team to address open challenges and drive progress.”

Lukas Mouton
Senior Scientist

Our culture

Our team is driven by purpose and united by challenge. Our culture is grounded in a set of shared principles that guide how we work, how we do business, and what we expect from one another.

Tackle hard problems and persevere

Bringing about a world powered by quantum computation won’t be easy. We value the ambition and self-confidence required to take on difficult problems, paired with the perseverance needed to overcome the obstacles along the way.

Build for the future while learning from the past

The work we do today is meant to stand the test of time and power the computers of tomorrow. Yet many of the challenges we face echo those from earlier eras of computing. We learn from the lessons of the past, letting them guide our approach and inform our strategy.

Drive progress and get your hands dirty

We know that success depends on relentless progress towards our goals. We proactively tackle challenges with a clear bias towards action, ensuring we continuously move forward and adapt swiftly to new information.

Strive for perfection while remaining pragmatic

We set high standards, aspiring to the excellence expected of a leading technology company. At the same time, we stay grounded—developing functional systems that prioritise user experience, achieve practical solutions, and truly deliver for our users.

Debate, discuss, disagree, and then commit

We value robust debate, thoughtful discussion, and healthy disagreement as paths to better decisions. Once a decision is made, we commit fully and proceed together with confidence as a united team.

Prove yourself wrong as quickly as possible

We believe in challenging our assumptions and rigorously testing our ideas in order to surface and correct flaws early. We encourage a culture where quickly proving ourselves wrong is seen as a path to faster learning and improvement.

Uphold integrity, both in science and in business

We understand that reputations are built over decades but can be lost in an instant. We recognise the distinct challenges of upholding integrity—whether in scientific work or business dealings—but it’s essential to who we are and fundamental to how we operate.

Succeed or fail as a team

We believe in collective success where incentives are aligned so that everyone shares in achievements and no one benefits at the expense of others. We are committed to building a united team and a culture that rejects silos and fiefdoms. We’ll succeed or fail as a cohesive unit.

Join a global team with science at the heart

Horizon Quantum has attracted best-in-class talent from around the globe. Our team of 50+ employees includes world-class scientists, engineers, and business professionals—many of whom hold advanced degrees in their field. Here, you’ll work with a diverse team of people who share a passion for discovery and a commitment to pushing the frontiers of science and technology. With offices in Singapore and Dublin, we work flexibly and stay closely connected—bridging time zones and perspectives.

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