Senior AI Engineer - LLM Specialist in Catalonia, Spain

Further Details

We are recruiting a Senior AI Engineer focusing on Large Language Models (LLMs) for a leading private sector company based in Catalonia, Spain. This role is perfect for individuals with extensive experience in software engineering, data, and machine learning, specifically those adept at deploying LLM solutions. The position requires a minimum of 5 years in software development and data-related fields, with at least 3 years dedicated to LLM development and production deployment. Key responsibilities include utilizing Python, developing APIs, designing services, and ensuring robust testing and validation of code. Practical experience with RAG implementations, AI agents, and frameworks like LangGraph is highly desirable. Proficiency in FastAPI, Pydantic, and automated testing is a prerequisite for this challenging role. Candidates will also be involved in evaluating response quality, mitigating hallucinations, optimizing latency and costs, and ensuring system reliability and security. This role is ideal for professionals with experience in major cloud providers like Azure, AWS, or Google Cloud, and knowledge of Docker, Kubernetes, and Terraform. Expertise in application security for LLMs, including guardrails, red teaming, and secret management, is a significant advantage. This position offers a unique opportunity to contribute to advanced AI projects within a collaborative and innovative environment.

Senior AI Engineer – LLM in Catalonia, Spain

A distinguished private sector entity, JR Spain Client / Grupo TECDATA Engineering, is actively seeking a highly skilled Senior AI Engineer with a specialized focus on Large Language Models (LLMs) to join their team in Catalonia, Spain. This pivotal role is designed for accomplished professionals with a comprehensive background in software engineering, data science, and machine learning, demonstrating a strong aptitude for bringing LLM-powered solutions from concept to production. This is an exceptional career opportunity for individuals possessing extensive experience in software development and data-related disciplines, including a minimum of three years dedicated to the development and successful deployment of LLM applications. The position requires a deep command of Python, proficiency in developing APIs, designing scalable services, and a thorough understanding of best practices in testing and code validation. Key Highlights:

• Minimum of 5 years' experience in software development, data science, or machine learning.
• At least 3 years of hands-on experience developing and deploying LLM solutions.
• Expertise in Python, API development, and service architecture.
• Practical experience with RAG, AI agents, and frameworks like LangGraph.
• Familiarity with cloud platforms (Azure, AWS, Google Cloud) and containerization (Docker, Kubernetes).
• Focus on LLM security, performance optimization, and reliability.

Skills

• Minimum 5 years in software development, data, or Machine Learning
• At least 3 years developing and productionizing LLM-based solutions
• Proficiency in Python
• Experience in API development and service design
• Expertise in testing and code validation
• Practical experience implementing RAG solutions
• Experience with AI agents and frameworks like LangGraph
• Knowledge of FastAPI and Pydantic
• Familiarity with structured typing and automated testing
• Experience evaluating model response quality
• Ability to detect hallucinations and regressions
• Skills in optimizing latency, costs, reliability, and security
• Experience with Azure AI Foundry/Azure OpenAI, AWS Bedrock, or Google Vertex AI
• Knowledge of Docker, Kubernetes, and Terraform
• Familiarity with observability tools like OpenTelemetry, Langfuse, or LangSmith
• Experience in LLM application security, including guardrails and red teaming
• Understanding of OWASP Top 10 for LLM Applications
• Experience with identity and secret management for agents

Duties and Responsibilities:

• Develop and deploy cutting-edge LLM-based solutions
• Design and implement robust APIs and services
• Conduct rigorous testing and validation of software code
• Implement Retrieval-Augmented Generation (RAG) architectures
• Build and manage AI agents for various applications
• Utilize frameworks such as LangGraph for complex workflows
• Optimize AI model performance, focusing on latency and cost reduction
• Ensure the reliability and security of LLM applications
• Evaluate and enhance the quality of model responses
• Collaborate with cloud platform teams on Azure, AWS, or Google Cloud
• Manage containerized environments using Docker and Kubernetes
• Implement observability solutions for monitoring AI systems
• Apply security best practices to LLM applications

How to apply

Interested candidates are invited to apply for this exciting Senior AI Engineer – LLM role by visiting the official Eurojobs platform. Please follow the steps outlined below to submit your application:

• Navigate to the Application Portal: Click on the provided 'Apply Now' link or visit the Eurojobs website and search for the specific job reference number: 1639719489920565248324611.
• Complete the Application Form: Fill out the online application form accurately and comprehensively. Successful candidates will benefit from these JR Spain Client / Grupo TECDATA Engineering jobs in Catalonia. Ensure all required fields are completed with your personal and professional details.
• Upload Required Documents: You will likely need to upload your updated Curriculum Vitae (CV) or resume, detailing your relevant experience and qualifications. Ensure your CV highlights your LLM development and deployment experience, as well as your skills in Python, RAG, and cloud technologies.
• Review and Submit: Before final submission, carefully review all entered information for accuracy. Successful candidates will benefit from these Information Technology and Services jobs in Catalonia. Once satisfied, submit your application through the portal.
• Application Deadline: Kindly ensure your application is submitted no later than the closing date of December 18, 2026. Late applications may not be considered.
• Contact Information: For any immediate inquiries, you may reach out to the employer at the provided contact details. While a direct WhatsApp contact is not specified, standard contact methods will be available.

Note: This is a private sector job opportunity with JR Spain Client / Grupo TECDATA Engineering. Further details regarding the application process and potential interview stages will be communicated directly to shortlisted candidates.