Quantum Algorithms Scientist

Phasecraft is a pioneering company in the realm of quantum algorithms, dedicated to laying the mathematical groundwork for quantum computing applications that tackle real-world challenges. Established in 2019 by visionaries Toby Cubitt, Ashley Montanaro, and John Morton, our headquarters are located in London and Bristol, UK. In 2023, we successfully completed a £13 million Series A funding round, spearheaded by the esteemed Silicon Valley deep tech venture capital firm, Playground Global.Our unparalleled access to the most advanced quantum computers today—thanks to strategic partnerships with industry leaders such as Google, IBM, and Rigetti—affords us unique opportunities to cultivate foundational intellectual property, guide the development of next-generation quantum hardware, and expedite the commercialization of significant breakthroughs.We are actively seeking a talented Quantum Algorithms Scientist to become an integral part of our dynamic team. The ideal candidate will possess extensive experience in the theory of algorithms for gate-model quantum computers or related fields in quantum computing theory, quantum information theory, or other relevant areas of quantum theory. You will play a vital role in advancing Phasecraft’s mission to develop quantum algorithms optimized for near-term quantum computers, covering topics such as algorithm optimization and design, quantum codes, resource analysis, error mitigation, and hardware benchmarking. This position offers the chance to expand your research portfolio across the diverse interests of Phasecraft.Key Responsibilities: Conduct theoretical and/or applied research on near-term quantum computing algorithms, applications, and/or enabling theoretical technologies. Contribute to the authorship of publications, presentations, patent applications, and other outputs resulting from research endeavors. Collaborate effectively within a small team comprising full-time staff and affiliated PhD students. Engage in additional activities as needed to foster the growth and success of Phasecraft.

Join Phasecraft, the pioneering quantum algorithms company, where we are establishing the mathematical frameworks necessary for quantum computing applications that address pressing real-world challenges. Founded in 2019 by industry leaders Toby Cubitt, Ashley Montanaro, and John Morton, we have offices in London and Bristol, along with a recently opened location in Washington DC, driven by Steve Flammia. In 2023, we successfully secured $17 million in Series A funding from the prominent Silicon Valley deep tech venture capital firm, Playground Global.Our exceptional access to the leading quantum computers today, through collaborations with Google, IBM, Quantinuum, and QuEra, grants us unparalleled opportunities to develop foundational intellectual property, guide the evolution of next-generation quantum hardware, and expedite the commercialization of significant breakthroughs.We are seeking a dedicated Quantum Algorithms Scientist to enhance our team. The ideal candidate will possess experience in the theory and/or implementation of optimization algorithms tailored for gate-model quantum computers, classical optimization, or constraint satisfaction algorithms, or demonstrate notable potential in these domains. Initially, this role will concentrate on these specific areas, with the opportunity to expand into a diverse portfolio of research activities aligned with Phasecraft's broader interests. While a background in quantum computing is not strictly necessary, successful candidates will need to demonstrate their capacity to conceptualize and implement advanced algorithms focusing on optimization and constraint satisfaction.Key Responsibilities:Conduct theoretical and applied research and software development for immediate quantum computing applications, focusing initially on quantum algorithms and software for combinatorial optimization and constraint satisfaction challenges.Contribute to the authorship of publications, presentations, patents, and other outcomes derived from research.Collaborate within a compact team composed of full-time staff and affiliated PhD students.Engage with stakeholders on collaborations applying quantum computing to optimization issues.Participate in additional activities as required to foster the growth and success of Phasecraft.Essential Qualifications:Proficiency in one or more of the following areas:• Quantum information and/or computation theory• Theory and implementation of classical optimization or constraint satisfaction algorithms• Quantum algorithm design and implementation• Mathematical analysis of algorithmsDemonstrated success in independently managing research projects.An impressive publication record and deep expertise in the relevant field.Exceptional written and verbal communication abilities, capable of conveying research findings to both technical and non-technical audiences.Willingness to work across various aspects of quantum algorithms and related fields.

Join Phasecraft, a pioneering company in the field of quantum algorithms, where we are laying the groundwork for quantum computing applications that address real-world challenges. Established in 2019 by Toby Cubitt, Ashley Montanaro, and John Morton, we operate out of London and Bristol, UK. In 2023, we successfully raised £13 million in a Series A funding round led by Playground Global, a prominent Silicon Valley deep tech venture capital firm, and in 2024, we expanded our presence by opening an office in Washington DC, under the leadership of Steve Flammia.Our unique partnerships with leading quantum computing platforms such as Google, IBM, Rigetti, and QuEra grant us unparalleled access to state-of-the-art quantum computers. This empowers us to create foundational intellectual property, influence the evolution of next-generation quantum hardware, and expedite the commercialization of significant breakthroughs.As we continue to evolve and delve into new research domains, we are thrilled to announce an exciting opportunity for a Quantum Algorithms Engineer. The ideal candidate will possess substantial experience in the implementation of sophisticated quantum algorithms or strong evidence showcasing their potential in this area. While a background in quantum computing is not strictly necessary, a demonstrated passion for the field through formal education or independent study is essential. Job Responsibilities Develop and assess advanced classical and/or quantum algorithms based on technical literature and research conducted by our team of Quantum Algorithms Scientists. Collaborate effectively within a small team comprising full-time staff and affiliated PhD students. Engage in additional tasks as needed to foster the growth and success of Phasecraft.

Join Phasecraft, a pioneering company in quantum algorithms dedicated to establishing the mathematical foundations for innovative quantum computing applications that tackle real-world challenges. Founded in 2019 by Toby Cubitt, Ashley Montanaro, and John Morton, we operate out of London and Bristol in the UK, with a new office in Washington DC opened in 2024 under the leadership of Steve Flammia. In 2025, we successfully raised $34 million in our Series B funding round, co-led by Plural, Playground Global, and Novo Holdings’ Quantum Fund, marking its first direct investment in quantum software.With unparalleled access to leading quantum computers through collaborations with industry giants like Google, IBM, Quantinuum, and QuEra, we are uniquely positioned to develop foundational intellectual property, guide the evolution of next-generation quantum hardware, and fast-track the commercialization of groundbreaking advancements.We are currently in search of a skilled Project Manager to coordinate intricate, multidisciplinary projects spanning engineering and scientific research. This vital role will involve planning, executing, and optimizing our technical programs, ensuring seamless collaboration among cross-functional teams and propelling projects from concept to completion.The ideal candidate will possess a solid grasp of R&D workflows, practical experience in applying Agile methodologies in both software and non-software contexts, and the capability to instill structure and predictability amidst the uncertainties of scientific exploration.Your contributions will be instrumental in scaling our organization by providing clarity and visibility to complex scientific and developmental tasks while empowering teams to operate iteratively and efficiently.

Who are we?At Ki Insurance, we’re at the forefront of insuring groundbreaking ventures—think space shuttles, worldwide tours, renewable energy projects, and even the legs of professional athletes.Our mission is clear: to digitally disrupt and transform a 335-year-old industry. Collaborating with tech giants like Google and leading academic institutions such as UCL, we’ve developed a cutting-edge platform that leverages algorithms, machine learning, and large language models to provide insurance brokers with quotes in mere seconds, instead of days.Proudly recognized as the world’s largest algorithmic insurance provider, Ki Insurance is the fastest-growing syndicate within the Lloyd's of London market and the first to achieve a remarkable $100 million profit within just three years.Our diverse teams come from various backgrounds and work collaboratively in an agile, cross-functional environment, all with the shared goal of creating the best possible experience for our customers. Ki has ambitious goals and seeks exceptional minds willing to challenge the status quo and explore new frontiers.Where do you fit in?We are in search of a Senior Algorithm Engineer to join our Algorithmic Underwriting team. In this pivotal role, you will bridge the gap between underwriting and algorithm development, creating machine learning-driven products that span over 25 business classes, including Commercial Properties, Oil Rigs, and Event Contingency insurance.You will enhance our capability to assess individual risks effectively while simultaneously building a profitable and stable portfolio, all within a minute. Your responsibilities will include large-scale geospatial analysis to manage exposure to natural disasters, as well as pioneering low-data machine learning strategies for niche markets with limited claims data, such as Terrorism insurance. This role sits at the intersection of advanced technology and specialized insurance, allowing you to contribute to both fields.Our multi-disciplinary team prides itself on being commercially driven, uniting deep expertise in specialty insurance with scalable machine learning development. We focus on delivering impactful features through a highly iterative and analytical approach, dedicating time to research and development both internally and in collaboration with academic institutions.We prioritize the commercial outcomes of our algorithms, and value well-tested and maintainable code. Our algorithms are developed in Python, and our infrastructure is fully cloud-native, managed as code.

Ki Insurance brings together technology and specialty insurance from its London base. The company’s portfolio spans diverse risks, from space missions and global tours to renewable energy projects and sports professionals. Ki collaborates with organizations such as Google and UCL to develop a platform that uses algorithms, machine learning, and large language models to deliver rapid insurance quotes to brokers. Recognized as the largest algorithmic insurance carrier worldwide and the fastest-growing syndicate in the Lloyd's of London market, Ki achieved $100 million in profit within three years. Teams work together in an agile environment, drawing on expertise from multiple fields to deliver new solutions and influence industry direction. Role overview The Algorithm Engineering team is searching for engineers interested in shaping insurance through technology. This role connects underwriting with algorithm development, building machine learning products that support more than 25 business classes, including Commercial Properties, Oil Rigs, and Event Contingency insurance. Algorithm Engineers at Ki help assess risks quickly and accurately, enabling the creation of a profitable and stable portfolio in under a minute. Projects range from large-scale geospatial analysis and managing exposure to natural disasters, to developing machine learning techniques for areas with limited data, such as Terrorism insurance. The work combines technology and specialty insurance, always with a focus on commercial results. How the team works Collaboration across disciplines, blending specialty insurance knowledge with scalable machine learning product development Focus on delivering high-impact features through an iterative and analytical approach Dedicated time for research and development, both internally and with academic partners Commitment to commercial outcomes and maintainable, well-tested code Algorithms primarily developed in Python Fully cloud-native infrastructure, managed as code Location This role is based in London, England, United Kingdom.

About WintermuteWintermute Trading is a pioneering technology firm and a leader in algorithmic trading, focusing on digital assets. We excel in providing liquidity across numerous cryptocurrency exchanges and trading platforms, offering a diverse array of OTC trading solutions. Additionally, we support prominent blockchain initiatives and assist traditional financial institutions in their transition to the crypto space. Our Wintermute Ventures division actively invests in promising early-stage DeFi projects.Founded in 2017, Wintermute has adeptly navigated the fluctuations of the industry. Our culture merges the technological exigencies of high-frequency trading firms with the innovative spirit typically found in startups. We are staunch believers in the transformative potential of blockchain technology and maintain a long-term vision for the digital asset market, positioning ourselves as leaders in developing an innovative and compliant market. You can learn more about us here.Join Our DeFi TeamWe are continually seeking talented individuals to enhance our DeFi team. Whether you are a developer, trader, or a recent graduate, we would love to hear from you. Your role will be pivotal in building and maintaining the systems that drive our on-chain trading strategies. You will be responsible for both the design and implementation of trading strategies, as well as developing the core microservices and backend infrastructure that support our trading engine.Our trading operations are heavily technology-driven, and our traders act as programmatic problem solvers. Like many innovators in this field, this position requires versatility, as you will be contributing to various codebases in multiple programming languages while exploring the frontiers of design within the ecosystem.We take pride in fostering a cohesive and collaborative team environment, where you will work closely with experienced traders and developers who will mentor you on enhancing our systems. Team members are encouraged to cultivate their own narratives, challenge one another, and explore new domains together.

About WintermuteWintermute is a prominent technology unicorn and one of the leading algorithmic trading firms specializing in digital assets. We excel in providing liquidity across a wide range of cryptocurrency exchanges and trading platforms, offer diverse OTC trading solutions, and support significant blockchain projects and traditional financial institutions transitioning into the crypto space. Additionally, Wintermute Ventures actively invests in early-stage DeFi projects.Founded in 2017, Wintermute has adeptly navigated through various industry cycles. We blend the rigorous technological standards of high-frequency trading firms with the innovative spirit characteristic of tech startups. At Wintermute, we are committed to harnessing the innovative potential of blockchain technology and hold a long-term vision for the digital asset market, positioning ourselves as leaders in establishing a creative and compliant marketplace. Discover more about us here.Join Our DeFi TeamWe are seeking an enthusiastic and inquisitive student to join our DeFi team for a 6-month internship. In this role, you will research on-chain protocols and conduct data-driven experiments that contribute to our understanding of decentralized finance.Our trading philosophy is fundamentally technological—our traders are analytical and programmatic problem solvers who thrive on innovation. In true DeFi fashion, this position offers you the chance to take on various roles, working across multiple codebases and languages to explore the ecosystem's design frontiers.We pride ourselves on being a close-knit, collaborative team that values open communication and creative exploration. You will collaborate closely with seasoned traders and developers, receiving mentorship while being encouraged to express your perspectives, challenge ideas, and explore new avenues of inquiry collectively.

Join Talan as an eFX Java Algorithm Developer in London, where you will be a key player in designing and implementing innovative trading algorithms for our electronic foreign exchange trading platform. Collaborate closely with quantitative analysts and traders to enhance our systems and ensure optimal performance in a highly competitive market.

About Man GroupMan Group is a leading global alternative investment management firm dedicated to delivering superior returns for discerning clients through our Systematic, Discretionary, and Solutions offerings. Leveraging exceptional talent and cutting-edge technology, our investment strategies—both single and multi-manager—are grounded in extensive research and span public and private markets across all major asset classes, with a notable emphasis on alternative investments. We prioritize a partnership approach, forging deep connections with clients to create customized solutions that address their investment objectives and those of the millions of retirees and savers they represent.Based in London, we manage assets totaling $227.6 billion* and have a presence in multiple global offices. Man Group plc is publicly traded on the London Stock Exchange under the ticker EMG.LN and is a constituent of the FTSE 250 Index. More information is available at www.man.com.* As of 31 December 2025Algo Research Team:The Algo Research team is tasked with conducting alpha research across a diverse range of time frames—from high-frequency to daily strategies—designing monetization and execution algorithms, and performing market impact modeling across all major asset classes, including Cash Equities, Futures, FX, and Options. We collaborate closely with various systematic research teams within Man Group to maximize the realized profit and loss of our strategies. Algo Research is a critical area of focus for Man Group.We are seeking a Quantitative Researcher primarily focused on Futures, with responsibilities including:Developing high-quality intraday predictive alpha signals in futures with time scales ranging from sub-seconds to hours, utilizing order book and alternative datasets.Implementing machine learning techniques in alpha research.Conducting detailed market impact modeling.Addressing optimal execution optimization challenges.Identifying the most lucrative profit and loss opportunities.Collaborating closely with researchers across the Man Systematic team.

About WintermuteWintermute is a pioneering technology company and a leading player in the algorithmic trading sector, focusing on digital assets. We are dedicated to providing liquidity across a vast array of cryptocurrency exchanges and trading platforms. Additionally, we offer comprehensive OTC trading solutions, supporting both high-profile blockchain initiatives and traditional financial institutions transitioning into the crypto space. Our Wintermute Ventures division also invests in promising early-stage DeFi projects.Founded in 2017, Wintermute has adeptly navigated the complexities of industry cycles. Our culture merges the high-frequency trading standards of traditional markets with the innovative and entrepreneurial spirit typical of technology startups. We are firm believers in the transformative potential of blockchain, and we take a long-term approach to the digital asset market, positioning ourselves as leaders in fostering a compliant and innovative trading environment. For more details, you can read more here.Why Join Wintermute?We are on the lookout for an Algorithmic Trader with robust coding abilities (Python) and a keen interest in high-frequency trading, liquidity provision, and cryptocurrency markets. From day one, you will manage your own “desk” and have the chance to create and refine your own trading algorithms and strategies. You will receive invaluable mentorship from seasoned traders and developers, including our founders and management team. Expect a high degree of autonomy and responsibility from the outset, allowing you to make a significant impact without the hindrance of legacy systems or bureaucratic red tape.Your ResponsibilitiesFollowing a brief training period, you will focus on enhancing existing trading strategies, introducing new trading products, and advancing the technology behind our trading systems. You will analyze extensive trading and transaction data to extract insights, prioritize them, and devise solutions based on your findings. You will have the opportunity to influence P&L positively and will be encouraged to experiment with innovative ideas and strategies. We will provide more technical specifics during the interview process.Please note: We seek individuals with strong quantitative and coding skills; however, this is primarily a business/trading role rather than a research position.

Galaxy Digital Services seeks a Director of Algorithmic Trading and Smart Order Routing Development to join the London office. This leadership role centers on building and refining advanced algorithmic trading systems that support the firm's institutional digital assets platform. Role overview The Director will drive the development and evaluation of execution algorithms, shaping the next generation of trading infrastructure. The position focuses on smart order routing and algorithmic trading, with a strong emphasis on innovation and technical excellence. Experience in cryptocurrency markets is highly valued, though a strong interest in digital assets is also welcomed. What you will do Lead the design and implementation of algorithmic trading systems and smart order routers. Evaluate and optimize execution algorithms for digital asset trading. Work closely with a team of developers and stakeholders to advance trading technology. Shape the foundation of the firm's trading infrastructure for institutional clients. Requirements Proven experience developing and assessing execution algorithms. Background in algorithmic trading or smart order routing development. Active involvement in cryptocurrency markets or a strong interest in digital assets. Ability to lead technical initiatives and collaborate with cross-functional teams. Our values Pursue excellence Selectivity for effectiveness Highly aligned, loosely coupled Transparent disagreement Encourage independent decision-making Build exceptional teams

Join Hudson River Trading (HRT), a leader in algorithmic trading, as we seek outstanding PhD candidates to enhance our Algorithm Development team. As an Algorithm Developer, you will play a pivotal role in constructing and refining the models that underpin our trading strategies. Your daily responsibilities will involve rigorous statistical analysis of extensive market and financial datasets, enabling you to create predictive trading models that drive our operations.In this dynamic position, you will collaborate with a team of skilled Algorithm Developers and Software Engineers, engaging in the research, development, and testing of innovative order execution and model training methodologies aimed at optimizing trading efficiency. You will run models live on our top-tier trading infrastructure, analyzing daily performance metrics to ensure sustained profitability. This is an exceptional opportunity to leverage your advanced academic research skills to tackle real-world trading challenges across diverse time horizons and machine learning strategies.

About the Quantum Computing Internship g-mass is offering a three-month Quantum Computing Internship in London, with the possibility of extension. This position suits those with a strong interest in quantum computing and emerging technologies who want to apply academic knowledge to real-world challenges. What You Will Do Conduct research on the latest developments in quantum computing, including vendor solutions and market trends. Examine how quantum computing could impact financial services, focusing on areas such as optimization, risk management, portfolio construction, cryptography, and operational models. Help shape g-mass's quantum computing offerings by translating technical concepts into clear, commercially relevant materials for clients. Produce written content such as research briefs, presentation decks, articles, market analyses, and internal documentation. Explore links between quantum computing and broader topics like AI, cyber resilience, and the future of financial services architecture. Take part in external thought leadership and marketing efforts as needed. Support strategic research projects tied to client opportunities and product development. Location This internship is based in London, England, United Kingdom.

Role overview Galaxy Digital Services seeks a Vice President, Algorithm and Smart Order Routing Developer for its London office. This position focuses on designing, building, and benchmarking execution algorithms from the ground up. The role plays a key part in developing advanced algorithmic trading systems and shaping the company's next-generation trading infrastructure. Collaboration with trading teams, stakeholders, and external partners is central to this work. The position requires leading initiatives that advance the firm's objectives in digital asset trading. What you will do Develop and benchmark execution algorithms for digital asset trading. Lead the design of smart order routing solutions as part of the trading infrastructure. Work closely with internal trading teams and stakeholders to deliver on key projects. Engage with external partners to support critical trading initiatives. Requirements Extensive experience developing execution algorithms from scratch. Strong track record in algorithmic trading system development. Background or strong interest in crypto markets. Ability to collaborate with diverse teams and external partners. Demonstrated leadership in driving technical initiatives. Our culture Galaxy Digital Services values a diverse team of innovators who thrive in a performance-driven environment. The company supports independent decision-making, open disagreement, and building exceptional teams. A mission-first mindset and transparent feedback are core to the culture. Strive for Excellence Be Selective for Effectiveness Align Closely, Operate Freely Encourage Open Disagreement Foster Independent Decision-Making Build Exceptional Teams

Our CultureAt Quantum Metric, our primary focus is to cultivate a happy, diverse, and inclusive environment. We are dedicated to empowering our employees to reach their fullest potential through various coaching and training programs aimed at accelerating their career paths in any direction they choose.As a remote-first organization, we recognize the significance of fostering a connected, diverse, and enjoyable workplace. We organize regular company-wide events, seasonal challenges, and local outings sponsored by Quantum Metric for those moments when virtual meetings become overwhelming. Additionally, we have several Employee Resource Groups that create safe spaces to discuss and reflect on issues that affect us both at work and beyond, whether it’s navigating the SaaS landscape as a newcomer or dealing with challenges faced by underrepresented groups.We are equally passionate about the relationships we build with our customers. In this role, you will collaborate with some of the world’s most recognizable brands and create lasting partnerships.At Quantum Metric, we appreciate all forms of experience and education, and we do not expect you to fulfill every qualification. What we value most is the unique perspective you bring and your commitment to our core values of passion, persistence, and integrity. About the RoleAs an Account Executive at Quantum Metric, you will lead full life-cycle sales within a new territory, concentrating on acquiring and nurturing enterprise-level accounts. We are looking for an ambitious and results-driven individual who is eager to learn and has the potential for significant earnings. You will establish trust and credibility with a diverse range of stakeholders, including Product Managers, Business Analysts, Customer Experience Insights Leaders, and DevOps teams across web, iOS, and Android platforms, as well as with technology ecosystem partners.As a vital member of our team, you will utilize your experience in full-cycle enterprise SaaS sales to craft compelling business cases and propel growth. We promote a supportive and collaborative startup culture where you can excel and make a meaningful impact.

Are you a passionate data scientist looking to make a significant impact in a dynamic environment? Join Marshmallow as a Staff Data Scientist and leverage your expertise to drive innovative data solutions. In this role, you will work closely with cross-functional teams to analyze complex datasets, develop predictive models, and provide actionable insights that enhance our product offerings.

Join InstaDeep as a Research Scientist where you will drive innovation in decision-making AI. Collaborate with leading experts to develop cutting-edge machine-learning models, conduct impactful experiments, and contribute to groundbreaking research in computational biology. Your insights will help expand our scientific knowledge and support our partnerships with global leaders like BioNTech SE and Google DeepMind.

Join Almedia as a Data Scientist, where you will play a crucial role in transforming data into actionable insights. Collaborate with cross-functional teams to analyze complex datasets, develop predictive models, and support data-driven decision-making.

Role overview Wise seeks a Lead Data Scientist for the Trust and Safety team in London. The main focus is protecting the platform and its users by applying advanced analytics to financial security challenges. This position involves tackling real-world risks and helping to keep Wise’s services safe for everyone. What you will do Analyze large and complex data sets to identify trends and detect suspicious activity Develop and improve models that reduce risk and prevent fraud Collaborate with stakeholders to guide strategic decisions through data-driven insights Shape new methods to strengthen platform security and build user trust Impact The work in this role directly supports Wise’s goal of making money transfers seamless and secure. Efforts here influence how Wise protects its customers and upholds the integrity of its services.