San Sebastián, Autonomous Community of the Basque Country, Spain · Hybrid
Multiverse Computing is a fast-growing deep-tech company founded in 2019 and recognized by CB Insights as one of the 100 most promising AI companies globally. We are the largest quantum software company in the EU, with 2…
Skills: Quantum computing, Quantum algorithms, Quantum annealing, Hybrid techniques, Python
San Sebastián, Autonomous Community of the Basque Country, Spain · Hybrid
Multiverse Computing is a fast-growing deep-tech company founded in 2019 and recognized by CB Insights as one of the 100 most promising AI companies globally. We are the largest quantum software company in the EU, with 2…
Skills: Machine learning, Large language models, NLP, Python, TensorFlow
Amsterdam, North Holland, Netherlands · Hybrid
Multiverse Computing Multiverse Computing is a fast-growing deep-tech company founded in 2019 and recognized by CB Insights as one of the 100 most promising AI companies globally. We are the largest quantum software comp…
Skills: Enterprise sales, Account management, AI solutions, Quantum computing, Strategic discovery
Zaragoza, Aragon, Spain · Hybrid
Multiverse Computing is a fast-growing deep-tech company founded in 2019 and recognized by CB Insights as one of the 100 most promising AI companies globally. We are the largest quantum software company in the EU, with 2…
Skills: IT Systems Engineering, Network Administration, System Monitoring, Endpoint Management, Incident Management
San Sebastián, Autonomous Community of the Basque Country, Spain · Hybrid
Multiverse Computing Multiverse is a well-funded, fast-growing deep-tech company founded in 2019. We are the largest quantum software company in the EU and have been recognized by CB Insights (2023 and 2025) as one of th…
Skills: Software Architecture, SOLID Principles, API Design, Docker, CI/CD
San Sebastián, Autonomous Community of the Basque Country, Spain · Hybrid
Multiverse Computing Multiverse is a well-funded, fast-growing deep-tech company founded in 2019. We are the largest quantum software company in the EU and have been recognized by CB Insights (2023 and 2025) as one of th…
Skills: Python, SQL, ETL/ELT, Data Modeling, Lakehouse Architecture
San Sebastián, Autonomous Community of the Basque Country, Spain · Hybrid
Multiverse Computing Multiverse is a well-funded, fast-growing deep-tech company founded in 2019. We are the largest quantum software company in the EU and have been recognized by CB Insights (2023 and 2025) as one of th…
Skills: Financial Analysis, Budgeting, Profitability Tracking, Financial Modeling, P&L Management
San Sebastián, Autonomous Community of the Basque Country, Spain · Hybrid
Multiverse Computing Multiverse is a well-funded, fast-growing deep-tech company founded in 2019. We are the largest quantum software company in the EU and have been recognized by CB Insights (2023 and 2025) as one of th…
Skills: Financial Analysis, FP&A, Controlling, Budgeting, Financial Modeling
San Sebastián, Autonomous Community of the Basque Country, Spain · Hybrid
Multiverse Computing Multiverse is a well-funded, fast-growing deep-tech company founded in 2019. We are the largest quantum software company in the EU and have been recognized by CB Insights (2023 and 2025) as one of th…
Skills: Financial Analysis, Budgeting, Profitability Tracking, IFRS, Spanish GAAP
London, England, United Kingdom · Hybrid
Multiverse Computing Multiverse Computing is a fast-growing deep-tech company founded in 2019 and recognized by CB Insights as one of the 100 most promising AI companies globally. We are the largest quantum software comp…
Skills: Pre-sales, Cloud Platforms, AI/ML Services, MLOps, Docker
Munich, Bavaria, Germany · Hybrid
Multiverse Computing Multiverse Computing is a fast-growing deep-tech company founded in 2019 and recognized by CB Insights as one of the 100 most promising AI companies globally. We are the largest quantum software comp…
Skills: Pre-sales, Cloud Platforms, AI/ML Services, MLOps, Docker
Munich, Bavaria, Germany · Hybrid
Multiverse Computing Multiverse Computing is a fast-growing deep-tech company founded in 2019 and recognized by CB Insights as one of the 100 most promising AI companies globally. We are the largest quantum software comp…
Skills: Pre-sales, Cloud Platforms, AI/ML Services, MLOps, Docker
Milan, Lombardy, Italy · Hybrid
Multiverse Computing Multiverse Computing is a fast-growing deep-tech company founded in 2019 and recognized by CB Insights as one of the 100 most promising AI companies globally. We are the largest quantum software comp…
Skills: Pre-sales, Cloud Platforms, AI/ML Services, MLOps, Docker
Milan, Lombardy, Italy · Hybrid
Multiverse Computing Multiverse Computing is a fast-growing deep-tech company founded in 2019 and recognized by CB Insights as one of the 100 most promising AI companies globally. We are the largest quantum software comp…
Skills: Pre-sales, Cloud Platforms, AI/ML Services, MLOps, Docker
Milan, Lombardy, Italy · Hybrid
Multiverse Computing Multiverse Computing is a fast-growing deep-tech company founded in 2019 and recognized by CB Insights as one of the 100 most promising AI companies globally. We are the largest quantum software comp…
Skills: Pre-sales, Cloud Platforms, AI/ML Services, MLOps, Docker
San Sebastián, Autonomous Community of the Basque Country, Spain • Hybrid
Sign up with Clera and we'll reach out the moment a role actually fits you — no more spraying applications into the void.
You will join a world-class team of experts to design and improve the company's codebase. Additionally, you will be responsible for designing and implementing new quantum algorithms for Fortune-500 customers.
Candidates must hold at least a Bachelor's degree in Quantum Physics, Quantum Engineering, or a related field. Proficiency in Python and knowledge of quantum computing algorithms and hybrid techniques are required.
Multiverse Computing is a fast-growing deep-tech company founded in 2019 and recognized by CB Insights as one of the 100 most promising AI companies globally. We are the largest quantum software company in the EU, with 250+ employees worldwide building advanced AI and quantum solutions that help enterprises tackle complex, high-impact challenges across industries such as finance, energy, manufacturing, telecom, and industrials.
Our mission is to enable organizations to gain a meaningful competitive edge through cutting-edge AI and quantum technologies.
Why join us?
We are a European deep-tech leader in quantum and AI, backed by major global strategic investors and strong EU support. Our groundbreaking technology is already transforming how AI is deployed worldwide — compressing large language models by up to 95% without losing accuracy and cutting inference costs by 50–80%.Joining us means working on cutting-edge solutions that make AI faster, greener, and more accessible — and being part of a company often described as a “quantum-AI unicorn in the making.”
As a Quantum Computing Engineer intern, you will
Join a world-class team of Quantum experts with an extensive track record in both academia and industry
Work with Fortune-500 customers from government and private sectors.
Collaborate with the founding team in a fast-paced startup environment.
Contribute to designing and improving Multiverse’s codebase.
Design and implement new quantum algorithms.
Required Qualifications
Bachelors, Master's degree Or PHD in Quantum Physics, Quantum Engineering, or related field.
Knowledge of quantum computing algorithms, Quantum annealing and hybrid techniques.
Knowledge of Python and related scientific computing tools.
Ability to work with a diverse team of people, both in-person and through online resources.
Perfect command of English language
Preferred Qualifications
PhD in Quantum Physics, Computer Science, or related fields.
Experience with quantum computing SDKs (Qiskit, Pennylane, or others).
Machine learning
Industry experience.
Experience using git, unit testing, and docker.
Exceptional Qualifications
Experience with error mitigation techniques and tools.
Optimization techniques
Ability to write patent applications.
Ability to write grant proposals.
6-month internship contract.
Equal pay guaranteed.
Relocation package (if applicable).
Hybrid opportunity.
Flexible working hours.
Eligibility for educational budget according to internal policy.
Flexible retribution with Cobee.
Language classes and discounted lunch options.
Working in a high paced environment, working on cutting edge technologies.
Career plan. Opportunity to learn and teach.
Progressive Company. Happy people culture.
As an equal opportunity employer, Multiverse Computing is committed to building an inclusive workplace. The company welcomes people from all different backgrounds, including age, citizenship, ethnic and racial origins, gender identities, individuals with disabilities, marital status, religions and ideologies, and sexual orientations to apply.
Pioneering the Era of Efficient & Sovereign AI. Smaller, Leaner, Smarter AI Models.
Multiverse Computing is an AI model provider leader in AI model compression. Its compressed AI models use techniques derived from quantum computing, enabling the smooth implementation of large AI language models and other systems with more than half the cost and energy consumption without sacrificing performance. With a global presence, its headquarters are located in Donostia-San Sebastián, Spain, with offices in Canada, the United Kingdom, France, Germany, Italy, and the United States. Multinational companies such as Iberdrola, Moody's Analytics, the Bank of Canada, and Telefonica have used Multiverse Computing's products. In 2025, they were named one of the “100 Most Promising Companies in AI” by CB Insights, and Digital Europe awarded them the “Future Unicorn 2024 Award.”
Offices: Paseo de Miramón, 170, Floor 2, San Sebastián, Basque Country 20014, ES · 192 Spadina Avenue, suite 210, Toronto, Ontario M5T 2C2, CA · Am Kartoffelgarten 14, Munich, Bayern 81671, DE · La Maison du quantique, 5 parvis Alan Turing Mail, Paris, FR · 3 Waterhouse Sq EC1N 2SW, London, GB
Pioneering the Era of Efficient & Sovereign AI. Smaller, Leaner, Smarter AI Models.
Multiverse Computing is an AI model provider leader in AI model compression. Its compressed AI models use techniques derived from quantum computing, enabling the smooth implementation of large AI language models and other systems with more than half the cost and energy consumption without sacrificing performance. With a global presence, its headquarters are located in Donostia-San Sebastián, Spain, with offices in Canada, the United Kingdom, France, Germany, Italy, and the United States. Multinational companies such as Iberdrola, Moody's Analytics, the Bank of Canada, and Telefonica have used Multiverse Computing's products. In 2025, they were named one of the “100 Most Promising Companies in AI” by CB Insights, and Digital Europe awarded them the “Future Unicorn 2024 Award.”
Offices: Paseo de Miramón, 170, Floor 2, San Sebastián, Basque Country 20014, ES · 192 Spadina Avenue, suite 210, Toronto, Ontario M5T 2C2, CA · Am Kartoffelgarten 14, Munich, Bayern 81671, DE · La Maison du quantique, 5 parvis Alan Turing Mail, Paris, FR · 3 Waterhouse Sq EC1N 2SW, London, GB
