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.”

We offer

Competitive annual salary starting from €45,000, based on experience and qualifications.

Two unique bonuses: signing bonus at incorporation and retention bonus at contract completion.

Relocation package (if applicable).

Up to 9-month contract, ending on June 2026.

Hybrid role and flexible working hours.

Be part of a fast-scaling Series B company at the forefront of deep tech.

Equal pay guaranteed.

International exposure in a multicultural, cutting-edge environment.

As a Data Engineer, you will

Develop and maintain the organization's data pipeline architecture

Design and implement ETL processes to ensure that data is clean, accurate, and accessible

Work closely with Machine Learning Engineers to ensure that data is properly structured for analysis and building predictive models

Collaborate with cross-functional teams to identify opportunities to improve data quality and accessibility

Build and maintain data pipelines to automate data ingestion and processing

Manage and optimize database performance

Stay up to date with emerging trends in data engineering and recommend new tools and technologies as appropriate

Required Qualifications

Bachelors or master's degree in computer science, software engineering, or a related field

1+ year of experience or demonstrated project in data engineering or a related field

Strong programming skills in Python or a similar language

Expertise in data modeling, ETL development, and database management

Experience with SQL and NoSQL databases

Familiarity with big data technologies such as Hadoop, Spark, and Kafka

Knowledge of cloud-based data platforms such as AWS, GCP, or Azure

Excellent problem-solving skills and attention to detail

Strong communication and collaboration skills

About Multiverse Computing

Founded in 2019, we are a well-funded, fast-growing deep-tech company with a team of 180+ employees worldwide. Recognized by CB Insights (2023 & 2025) 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. We are committed to an inclusive, ethics-driven culture that values sustainability, diversity, and collaboration — a place where passionate people can grow and thrive. Come and join us!

Department: Technical
Locations: San Sebastian, Spain, Madrid, Barcelona
Employment type: Contract
Workplace type: Hybrid
Seniority level: Associate

About MULTIVERSE COMPUTING

Come and join our multicultural team!

5 locations
+27 languages

Founded in 2019

Coworkers +150

Technical · Multiple locations

Data Engineer (9-month contract with bonus incentives)

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