> Markdown version of [/jobs/ext/1686711-back-end-developer](https://www.wearedevelopers.com/jobs/ext/1686711-back-end-developer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Back End Developer - **Company:** NTT Ltd. - **Location:** Murcia, Spain - **Contract:** Permanent contract - **Skills:** Application Programming Interfaces (APIs), Artificial Intelligence, Airflow, Amazon Web Services, Continuous Integration, Relational Databases, Github, Python (Programming Language), PostgreSQL, MySQL, Performance Tuning, Queueing Systems, RabbitMQ, Prometheus, Software Engineering, Systems Integration, Management of Software Versions, Workflow Management Systems, Datadog, Large Language Models, Grafana, Backend, Gitlab, Git, Kubernetes, Deployment Automation, HuggingFace, Apache Kafka, Machine Learning Operations, Nim (Programming Language), Restful APIs, Docker, Microservices - **Published:** July 14, 2026 - **Apply:** https://www.adzuna.es/contact-us.html ## About the Role 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). ## Description Senior Recruitment Consultant | Software Engineering, Embedded Computing, AI/ML, Semiconductor & Sales Join 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. ## Related Videos - [How a Small Team Shrank a Microsoft Monorepo by 94%](https://www.wearedevelopers.com/videos/1236-how-a-small-team-shrank-a-microsoft-monorepo-by-94) - [MySQL Protocol Features You Should Be Aware Of](https://www.wearedevelopers.com/videos/100267-mysql-protocol-features-you-should-be-aware-of) - [Innovating Developer Tools with AI: Insights from GitHub Next](https://www.wearedevelopers.com/videos/1268-innovating-developer-tools-with-ai-insights-from-github-next) - [LLMOps-driven fine-tuning, evaluation, and inference with NVIDIA NIM & NeMo Microservices](https://www.wearedevelopers.com/videos/1582-llmops-driven-fine-tuning-evaluation-and-inference-with-nvidia-nim-nemo-microservices) - [Branch your database like your code: How schema changes and pull requests go hand in hand](https://www.wearedevelopers.com/videos/350-branch-your-database-like-your-code-how-schema-changes-and-pull-requests-go-hand-in-hand) - [Git for Code Reviews](https://www.wearedevelopers.com/videos/429-git-for-code-reviews) ## Related Articles - [20 Essential Tools For Backend Development](https://www.wearedevelopers.com/magazine/218-20-essential-tools-for-backend-development) - [The 7 Most Popular Backend Frameworks for Developers](https://www.wearedevelopers.com/magazine/403-the-7-most-popular-backend-frameworks-for-developers) - [Highest Paying Tech Companies for Developers](https://www.wearedevelopers.com/magazine/220-highest-paying-tech-companies-for-developers) - [The Most Popular IT Jobs on the Market](https://www.wearedevelopers.com/magazine/376-the-most-popular-it-jobs-on-the-market) - [Why Upskilling And Reskilling is Important For Developers](https://www.wearedevelopers.com/magazine/428-why-upskilling-and-reskilling-is-important-for-developers) - [Dev Digest 120 - Apple and peers](https://www.wearedevelopers.com/magazine/455-dev-digest-120-apple-and-peers)