OverviewWe are looking to fill this role immediately and are reviewing applications daily. 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 %.

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."Two unique bonuses: signing bonus at incorporation and retention bonus at contract completion.Relocation package (if applicable). Fixed-term contract ending in June .Hybrid role and versátil working hours.About the RoleTasks and responsibilities include the following for a Product Support Engineer on a temporary basis (contract) to provide customer-facing technical support for our compressed Large Language Models (LLMs) and API services. As a Product Support Engineer, you will:Provide first-line technical support with a variety of complexity, from simple billing or account questions for individuals to complex, incident-level issues and debugging.Assist customers with API integration, usage, and best practices for performance and reliability.RequirementsRequired QualificationsStrong technical background with experience in troubleshooting APIs, SDKs,



or software integrations.Familiarity with AI/ML concepts, particularly Large Language Models and model deployment.Proficiency in Python and experience with APIs.Bachelor's degree in Computer Science, Engineering, or related field;

Preferred Qualifications (Nice-to have)Experience supporting AI/ML products or developer-focused platforms.Knowledge of model compression techniques and performance optimization.Contributions to documentation, tutorials, or developer community forums.Experience using ticketing and support tools (e.g., Zendesk, Jira, or similar).

About Multiverse

ComputingFounded in , we are a well-funded, fast-growing deep-tech company with a team of 180+ employees worldwide. Recognized by CB Insights & ****) as one of the Top 100 most promising AI companies globally, we are also the largest quantum software company in the EU. Our flagship products address critical industry needs:CompactifAI ? a groundbreaking compression tool for foundational AI models, reducing their size by up to 95% while maintaining accuracy, enabling portability across devices from cloud to mobile and beyond.Singularity ? a quantum and quantum-inspired optimization platform used by blue-chip companies in finance, energy, and manufacturing to solve complex challenges with immediate performance gains.You'll be working alongside world-leading experts in quantum computing and AI, developing solutions that deliver real-world impact for global clients.

📌 Product Support Engineering (Madrid)
🏢 Multiverse Computing
📍 Madrid