
Multiverse Computing is the leading quantum AI software company. We apply quantum and quantum-inspired AI to solve complex problems in finance, energy, manufacturing, defense, cybersecurity, life sciences, and chemistry, delivering practical applications and tangible value today. We provide hyper-efficient software to companies wanting to gain an edge with quantum computing and artificial intelligence. One of our flagship products is Singularity, a software platform that contains quantum and quantum-inspired algorithms developed and patented through proof-of-concept trials we have been performing for industrial and service clients. Our other product CompactifAI, is an AI model compression tool that reduces AI model size while maintaining performance, leading to lower energy consumption and costs. CompactifAI is ideal for real-time processing and edge computing applications. It has been adopted by enterprises in healthcare, automotive, and telecommunications, showcasing its versatility and impact. Multiverse Computing applies these cutting edge technologies to provide companies a chance to derive value from the quantum AI revolution.

Multiverse Computing is the leading quantum AI software company. We apply quantum and quantum-inspired AI to solve complex problems in finance, energy, manufacturing, defense, cybersecurity, life sciences, and chemistry, delivering practical applications and tangible value today. We provide hyper-efficient software to companies wanting to gain an edge with quantum computing and artificial intelligence. One of our flagship products is Singularity, a software platform that contains quantum and quantum-inspired algorithms developed and patented through proof-of-concept trials we have been performing for industrial and service clients. Our other product CompactifAI, is an AI model compression tool that reduces AI model size while maintaining performance, leading to lower energy consumption and costs. CompactifAI is ideal for real-time processing and edge computing applications. It has been adopted by enterprises in healthcare, automotive, and telecommunications, showcasing its versatility and impact. Multiverse Computing applies these cutting edge technologies to provide companies a chance to derive value from the quantum AI revolution.
Founding: Founded in 2019, headquartered in Donostia / San Sebastián, Spain
Focus: Quantum and quantum-inspired AI software for optimization and model compression
Flagship products: Singularity (quantum-inspired optimization) and CompactifAI (AI/LLM compression)
Recent funding: Announced large Series B (€189M) and prior Series A (€25M)
| Company |
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Enterprise optimization and AI model compression for industries such as finance, energy, manufacturing, cybersecurity and telecommunications.
2019
Software Development
€25 million
Oversubscribed Series A announced March 2024; additional participation later from CDP Venture Capital.
€189 million
Announced June 2025 to support commercialization of CompactifAI and broader AI efforts.
“Institutional and corporate participation including Bullhound Capital, Columbus Venture Partners, CDP Venture Capital, HP Tech Ventures, Toshiba and others”
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 the 100 most promising AI companies in the world.
With 180+ employees and growing, our team is fully multicultural and international. We deliver hyper-efficient software for companies seeking a competitive edge through quantum computing and artificial intelligence.
Our flagship products, CompactifAI and Singularity, address critical needs across various industries:
CompactifAI is a groundbreaking compression tool for foundational AI models based on Tensor Networks. It enables the compression of large AI systems—such as language models—to make them significantly more efficient and portable.
Singularity is a quantum- and quantum-inspired optimization platform used by blue-chip companies to solve complex problems in finance, energy, manufacturing, and beyond. It integrates seamlessly with existing systems and delivers immediate performance gains on classical and quantum hardware.
You’ll be working alongside world-leading experts to develop solutions that tackle real-world challenges. We’re looking for passionate individuals eager to grow in an ethics-driven environment that values sustainability and diversity.
We’re committed to building a truly inclusive culture—come and join us.
Job Overview We are seeking a skilled and experienced LLM Engineer (Senior and Mid level) with a strong background in Large Language Models to join our team. In this role you will have the opportunity to leverage cutting-edge quantum and AI technologies to lead the design, implementation, and improvement of our language models, as well as working closely with cross-functional teams to integrate these models into our products. You will have the opportunity to work on challenging projects, contribute to cutting-edge research, and shape the future of LLM and NLP technologies.
As a LLM Engineer, you will
Required Qualifications
Preferred Qualifications
Perks And Benefits
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. Come and join our multicultural team!
5 locations
+27 languages