
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…

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…
Founded: 2019
Headquarters: San Sebastián (Donostia), Spain
Focus: Quantum and quantum-inspired AI software (LLM compression, optimization)
Notable products: CompactifAI (model compression), Singularity (optimization platform)
Recent financing: €189M Series B (June 2025)
High compute and energy costs of large AI models; complex optimization problems across industries.
2019
Software Development
€10,000,000
€25,000,000
€189,000,000
Raised to scale CompactifAI LLM compression technology
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:
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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