H

Horizon Quantum Computing

Quantum software development platform with compiler

Senior Scientist - Quantum Control and Hardware

Full-Time
No salary listed
Mid, Senior
PhD
Dublin, Ireland
In Person
Data & Analytics

About the job

Requirements
  • A PhD degree in Computer Science, Physics, a related engineering field, or equivalent experience.
  • At least two years of post-doctoral work or equivalent research and development experience at a comparable level.
  • Experience with quantum hardware and modeling realistic quantum circuits.
  • Programming experience with pulse-level languages.
  • Working knowledge of quantum computing.
  • Programming experience with C, C++, and Python.
  • Experience with professional software development and software development processes.
  • Strong troubleshooting and debugging skills.
  • Strong collaboration, communication, and documentation skills.
Responsibilities
  • Work with other employees to design and implement Horizon’s products.
  • Solve scientific and technical problems in support of Horizon’s product development and implement these solutions in computer code for integration with Horizon’s products and services.
  • Develop quantum control in Horizon’s product framework.
  • Mentor junior scientists on the team to enable their progress within the company and improve their technical skills.
  • Maintain proper documentation of work and present results internally and externally.
  • Write reports, research papers, and technical documentation as required by the company.
  • Work with other employees and external partners to develop and protect novel intellectual property relating to quantum hardware and software innovations.
  • Keep up to date with the latest scientific and technical advances.
Desired Qualifications
  • Programming experience with Matlab.

About the company

H

Horizon Quantum Computing

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Horizon Quantum Computing builds software infrastructure for quantum computing. Its Triple Alpha IDE provides proprietary languages and a compiler that let developers write quantum programs using familiar high-level abstractions and run them on multiple quantum processors, lowering the need for deep quantum expertise. The deployment and execution tools enable applications compiled with its software to run across a range of hardware platforms, and the company also owns its own quantum computer to co-develop hardware and software. Its goal is to help developers create quantum applications more easily by offering a complete cross-hardware software stack and tooling, while advancing hardware development; the 2026 Nasdaq listing supports faster R&D.

Company Size

51-200

Company Stage

IPO

Headquarters

Singapore, Singapore

Founded

2018

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Simplify's Take

What believers are saying

  • August 2026 warrant exercises added $28.7 million and lifted cash to $113.25 million.
  • Beryllium reached early access in Q2 2026, widening developer usage beyond research teams.
  • Dublin's June 2026 IonQ 256-qubit testbed expands Horizon's European footprint and partner leverage.

What critics are saying

  • Q2 2026 operating expenses hit $7.2 million, while adjusted EBITDA stayed negative.
  • September 15, 2026 share-structure clarification signaled investor confusion around HQ post-SPAC dilution.
  • Quantum hardware still lacks broad production demand; software layers get commoditized if IonQ, IBM, or Quantinuum bundle them.

What makes Horizon Quantum Computing unique

  • Triple Alpha and Beryllium abstract quantum programming into familiar software constructs.
  • Ember-1 and Dublin create a rare multi-modality testbed across superconducting and trapped-ion systems.
  • Quantum Machines collaboration adds embedded calibration, reducing downtime on deployed hardware.

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Growth & Insights and Company News

Headcount

6 month growth

11%

1 year growth

5%

2 year growth

10%
Quantum Zeitgeist
Sep 18th, 2026
Horizon Quantum clarifies share structure and lock-up agreements following $120M SPAC merger

Horizon Quantum Computing has disclosed details of its share structure following market uncertainty. As of 14 September 2026, the company reports 34,811,740 Class A ordinary shares and 19,744,585 Class B ordinary shares outstanding. Lock-up agreements restrict share sales until 19 March 2028 for most shareholders, with one agreement expiring on 19 September 2027. These followed the March 2026 merger with dMY Squared Technology Group, which raised approximately $120 million in gross proceeds. Founded in 2018, Horizon Quantum develops software translating classical code into quantum circuits and operates quantum hardware. The company is now publicly listed on Nasdaq. Horizon Quantum is currently collaborating with Alpine Quantum Technologies to integrate its software with trapped-ion quantum systems.

Quantum Computing Report
Aug 8th, 2026
Who's news: Strategic appointments at Horizon Quantum, Quantum Computing Inc., and Uviquity.

Who's news: Strategic appointments at Horizon Quantum, Quantum Computing Inc., and Uviquity. Horizon Quantum has appointed Amanda Chew as Chief Product Officer (CPO), effective August 17, 2026. Chew joined the company in 2020 as Product Manager and subsequently held the positions of Director of Product and Vice President of Product. Prior to Horizon Quantum, she held management roles at Microsoft. In her new capacity, Chew will manage Horizon Quantum's product development and software infrastructure strategies. Quantum Computing Inc. (QCi) has promoted Mark Batzdorf to Senior Vice President, Finance. Batzdorf joined QCi following its acquisition of Luminar Semiconductor and has since managed finance operations for the company's photonics unit. In his expanded role, he will manage QCi's broader financial framework and growth planning. Uviquity has appointed Dr. Vincent D. ("Chuck") Mattera, Jr. as a Strategic Advisor. Dr. Mattera is the Founder and CEO of Avalanche Thinking and formerly served as Chair and CEO of Coherent Corp. In his advisory role, he will guide Uviquity's executive team as the company commercializes its integrated aluminum nitride (AlN) photonics platform for quantum computing, sensing, and ultraviolet applications. Quantum Computing Report LLC wish all these organizations and individuals success in their new endeavors. August 8, 2026

Quantum Computing Report
Aug 6th, 2026
Horizon Quantum reports Q2 2026 financial results: warrant cash infusion, Beryllium Early Access, and European Testbed Expansion.

Horizon Quantum reports Q2 2026 financial results: warrant cash infusion, Beryllium Early Access, and European Testbed Expansion. Horizon Quantum Holdings Ltd. (NASDAQ: HQ) has reported its financial results for the second quarter ended June 30, 2026. Highlights of the quarter include a major capital injection from public warrant exercises, early access availability for its flagship programming language Beryllium, and the strategic expansion of its quantum hardware testbed into Europe. Because the company completed its SPAC merger with dMY Squared Technology Group on March 19, 2026, financial metrics prior to that date reflect Horizon Quantum Computing Pte. Ltd., while subsequent periods reflect Horizon Quantum Holdings Ltd. The table below summarizes key GAAP financial metrics for Q2 2026 compared with the prior quarter (Q1 2026) and the year-ago quarter (Q2 2025). Financial results and warrant cash infusion. Horizon Quantum's cash position was significantly fortified during the second quarter. The company received $27.5 million in gross proceeds from the exercise of 2.4 million publicly traded warrants (HQWWW) during Q2. Subsequent to quarter-end, as of August 3, 2026, total warrant exercises reached approximately 2.5 million (79% of total outstanding public warrants), bringing cumulative gross proceeds to $28.7 million. This cash inflow elevated total cash and cash equivalents to $113.25 million as of June 30, 2026, up $16.65 million from $96.60 million at the end of Q1 2026. Reported GAAP Net Loss for Q2 2026 was ($115.23) million, or ($2.20) per ordinary share, compared to ($3.56) million in Q1 2026 and ($2.90) million in Q2 2025. This significant loss was primarily driven by a $108.29 million non-cash accounting charge resulting from the mark-to-market fair value remeasurement of warrant-related derivative liabilities, caused by an increase in Horizon's stock price during the quarter. This charge had no impact on cash balances or operations. On a non-GAAP basis, excluding the non-cash derivative adjustment, share-based compensation, and non-recurring public transition costs, the company reported an Adjusted EBITDA loss of ($5.46) million for Q2 2026, compared to ($2.06) million in Q2 2025. Total operating expenses rose to $7.18 million, up 10.5% sequentially from Q1 2026, reflecting expanded R&D headcount and public company compliance infrastructure. Operational highlights: Triple Alpha and Beryllium release. * Beryllium Early Access: At the end of Q2 2026, Horizon released Beryllium - its high-level, object-oriented quantum programming language - to early access users. Designed to enable modern classical software engineering constructs (classes, functions, libraries) within quantum workflows, Beryllium compiles down to Helium (a BASIC-like language) and Hydrogen (assembly language) to abstract away low-level quantum mechanics for developers. * Ember-1 Testbed Open to Users: Horizon's first quantum testbed system, Ember-1 (a superconducting system located at its Singapore headquarters), officially opened to select early users. Integrated directly with Triple Alpha, Ember-1 enables real-time execution of complete quantum programs with pulse- and gate-level access, bypassing latency issues associated with remote cloud execution. * Dublin Testbed Expansion: In June 2026, Horizon announced that its second hardware testbed system - a 256-qubit trapped-ion system purchased from IonQ - will be located at its European headquarters in Dublin, Ireland, giving the company a multi-modality testbed across both solid-state and atom-based architectures. Ecosystem collaborations. * Quantum Machines Partnership: In July 2026, Horizon announced a strategic collaboration with Quantum Machines to co-develop an embedded calibration framework for Ember-1. By integrating lightweight, continuous calibration routines directly into system operation, the companies aim to maximize system uptime and eliminate the need for lengthy full-system calibration halts. Resources and further reading. August 6, 2026

Quantum Computing Report
Jul 29th, 2026
Horizon Quantum and Quantum Machines partner to advance real-time quantum calibration.

Horizon Quantum and Quantum Machines partner to advance real-time quantum calibration. Software infrastructure developer Horizon Quantum Computing (Nasdaq: HQ) and hybrid quantum-classical control provider Quantum Machines (QM) have announced a strategic collaboration to develop embedded calibration technologies for quantum computing hardware. By integrating Quantum Machines' control systems with Horizon's software architecture, the partnership aims to create lightweight, real-time calibration routines that reduce system downtime and improve operational stability across complex quantum processors. The joint R&D initiative will be implemented on Ember-1, Horizon Quantum's modular superconducting quantum computer testbed. Horizon will leverage Quantum Machines' OPX1000 quantum control platform - a modular orchestration engine designed to harmonize classical and quantum operations - to execute continuous, low-overhead calibration cycles during normal system operation. This embedded approach is designed to replace lengthy, full-system calibration routines that traditionally disrupt hardware availability as qubit counts scale. By maintaining dynamic system calibration without taking the processor offline, the collaboration expects to increase operational uptime for users accessing Ember-1 through Horizon's Triple Alpha integrated development environment (IDE). The embedded calibration framework will also serve as a commercial validation point for Quantum Machines' OPX1000 controller within a deployed superconducting quantum computing environment. July 29, 2026

MarketBeat
Jul 13th, 2026
Quantum Computing stocks worth watching - july 13th.

Quantum Computing stocks worth watching - july 13th. July 13, 2026 Key points. * IonQ, D-Wave Quantum, Quantinuum, Quantum Computing, and Horizon Quantum Computing were highlighted as the quantum computing stocks worth watching, based on MarketBeat's stock screener and recent trading volume. * The article frames quantum computing stocks as speculative, high-volatility investments tied to the future commercial success of quantum technology rather than established near-term earnings power. * Several of the companies are positioning their products and services around cloud access, software tools, and practical applications, such as quantum computers, development platforms, and quantum security solutions. * MarketBeat previews top five stocks to own in August. IonQ, D-Wave Quantum, Quantinuum, Quantum Computing, and Horizon Quantum Computing Pte. are the seven Quantum Computing stocks to watch today, according to MarketBeat's stock screener tool. Quantum computing stocks are shares of publicly traded companies that develop quantum computing hardware, software, or related technologies, as well as companies expected to benefit from advances in the field. For stock market investors, the term usually refers to speculative investments tied to the future commercial success of quantum computing, often involving higher risk and volatility than more established technology stocks. These companies had the highest dollar trading volume of any Quantum Computing stocks within the last several days. IonQ (IONQ). IonQ, Inc. engages in the development of general-purpose quantum computing systems in the United States. It sells access to quantum computers of various qubit capacities. The company makes access to its quantum computers through cloud platforms, such as Amazon Web Services (AWS) Amazon Braket, Microsoft's Azure Quantum, and Google's Cloud Marketplace, as well as through its cloud service. D-Wave Quantum (QBTS). D-Wave Quantum Inc. develops and delivers quantum computing systems, software, and services worldwide. The company offers Advantage, a fifth-generation quantum computer; Ocean, a suite of open-source python tools; and Leap, a cloud-based service that provides real-time access to a live quantum computer, as well as access to Advantage, hybrid solvers, the Ocean software development kit, live code, demos, learning resources, and a vibrant developer community. Quantinuum (QNT). Quantum computing is quickly evolving from research to early commercial adoption to address the insatiable need for computing power in the digital age. Even as classical computing continues to advance in energy-efficient performance, the huge computational demands of new applications such as artificial intelligence ("AI") are making it challenging for classical computing to keep pace. Discover more Song Lyrics & Tabs MarketBeat Research Tools Stock Average Calculator Quantum Computing (QUBT). Quantum Computing Inc., an integrated photonics company, offers accessible and affordable quantum machines. The company offers Dirac systems are portable, low power, and room temperature qubit and qudit entropy quantum computers (EQC); reservoir computing; remote sensing; and single photon imaging. It also provides Quantum random number generator (uQRNG), a portable device that provides genuine random numbers directly from quantum processes; and quantum authentication which eliminates vulnerabilities inherent in classical cryptographic schemes by offering a comprehensive entanglement-based quantum cyber solution that seamlessly integrates into existing telecom fiber and communication infrastructure. Horizon Quantum Computing Pte. (HQ). dMY Squared Technology Group Inc. is a blank check company. It formed for the purpose to effect a merger, capital stock exchange, asset acquisition, stock purchase, reorganization or similar business combination with one or more businesses. dMY Squared Technology Group Inc. is based in LAS VEGAS. This instant news alert was generated by narrative science technology and financial data from MarketBeat in order to provide readers with the fastest reporting and unbiased coverage. Please send any questions or comments about this story to [email protected]. Before you consider IonQ, you'll want to hear this. MarketBeat keeps track of Wall Street's top-rated and best performing research analysts and the stocks they recommend to their clients on a daily basis. MarketBeat has identified the five stocks that top analysts are quietly whispering to their clients to buy now before the broader market catches on... and IonQ wasn't on the list. While IonQ currently has a Moderate Buy rating among analysts, top-rated analysts believe these five stocks are better buys. Learn the basics of options trading and how to use them to boost returns and manage risk with this free report from MarketBeat. Click the link below to get your free copy.