Backend Engineer

hace 6 días

Barcelona, Barcelona, España Multiverse Computing A tiempo completo

We are looking to fill this role
immediately
and are reviewing applications daily. Expect a fast, transparent process with quick feedback.

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."

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).
  • Fixed-term contract ending in 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.

Required Qualifications

  • 2–5 years of experience developing and maintaining backend systems in Python or Go.
  • Strong understanding of RESTful API or gRPC design, versioning, and performance optimization.
  • Experience with Docker and basic familiarity with Kubernetes for deploying scalable services.
  • Solid understanding of relational databases (PostgreSQL/MySQL) and schema design.
  • Experience integrating or automating workflows across multiple systems (data, CI/CD, ML).
  • Proficiency with Git, testing frameworks, and CI/CD pipelines (GitLab, GitHub Actions).
  • Experience with AWS or cloud-based deployment environments.
  • A product-oriented mindset — able to turn R&D scripts or prototypes into stable, usable APIs or microservices.

Preferred Qualifications

  • Experience with ML workflow orchestration (Flyte, Airflow, MLflow, or Kubeflow).
  • Exposure to LLM inference/deployment tools (vLLM, Hugging Face Hub, NVIDIA NIM, or Triton).
  • Experience building or integrating benchmarking, evaluation, or data automation pipelines.
  • Familiarity with message queues or event-driven architectures (Kafka, NATS, RabbitMQ).
  • Understanding of observability tooling (Prometheus, Grafana, OpenTelemetry).
  • Demonstrated ability to collaborate with product and design teams to define backend contracts that enable intuitive user experiences.

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

Come and join our multicultural team

5 locations

+27 languages

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