Back End Developer

Backend Engineer | AI Start-up | | Python / GO | 7-Month fixed-term ContractJoin a European deep-tech leader in quantum and AI.A well-funded, fast-growing company backed by major global investors with its groundbreaking technology is already transforming AI, compressing large language models by up to 95% and cutting inference costs by *****%.

This is your chance to be part of a team often described as a"quantum-AI unicorn in the making."This is a Hybrid opportunity working out of Zaragoza.Required Qualifications2-5 years of experience developing and maintaining backend systems inPythonorGo . Strong understanding of RESTful API or gRPC design, versioning, and performance optimization.Experience withDockerand basic familiarity withKubernetesfor 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 QualificationsExperience 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).

Perks & Benefits:Compensation:Competitive salary, with a signing bonus and a retention bonus at the end of the contract.Flexibility:This is a hybrid role with flexible working hours. A relocation package is available if needed.Culture:We are a fast-scaling company committed to equal pay, diversity, and an inclusive culture. You'll gain international exposure in a multicultural, cutting-edge environment.Interested?