Backend Engineer – Python & Generative AI
Backend engineer in Madrid building and operating production LLM-powered services: Python/FastAPI backends with generative AI, agentic workflows and RAG architectures on Azure, with focus on reliability, scalability, evaluation and observability.
- Compensation
- Not disclosed
- Location
- Madrid, ES
- Work setup
- Remote
- Seniority
- Not specified
- Employment
- Not specified
- Experience
- 2+ years
- Category
- Ai engineering
- Posted
Skills
Must have
- 5+ years of professional backend development experience with Python
- 2+ years of hands-on experience delivering LLM-based solutions in production
- Experience with Azure OpenAI and/or the OpenAI API
- Practical experience with LangChain and LangGraph
- Experience building production RAG systems using Azure AI Search or similar
- Strong knowledge of FastAPI, asynchronous programming and streaming
- Experience with LLM evaluation and observability
- Experience using AI coding tools such as Claude Code or Codex, and working with skills and MCP servers
- Professional working proficiency in English
Nice to have
- Experience with Azure AI Foundry or Azure AI Document Intelligence
- Familiarity with Langfuse, MLflow or Databricks
- Knowledge of spec-driven development (SDD)
- Experience deploying and monitoring AI applications in enterprise cloud environments
Full description
Who are we?
We are part of the Alkemy Group, specializing in driving growth through our technological expertise, tackling complex challenges, and fostering operational excellence.
- We are digital natives and technology-neutral thanks to our rapid adaptation capabilities and problem-solving skills in any business situation.
- We are passionate about technology challenges that have a significant impact on business. To address these, we have high-performance teams and the ability to quickly and effectively combine technologies.
- We support our clients in their digital evolution to achieve maximum efficiency in their businesses, leveraging our extensive multi-sector experience.
We invite you to get to know us in depth by exploring the various sections of our website.
What are we looking for?
We are looking for a Backend Engineer with strong Python expertise and hands-on experience building and operating Generative AI solutions in production.
You will design, develop and maintain backend services powered by Large Language Models (LLMs), agentic workflows and Retrieval-Augmented Generation (RAG) architectures. The role combines solid software engineering practices with advanced AI engineering, focusing on reliability, scalability, evaluation and observability.
We are looking for an engineer who can turn AI prototypes into robust, production-ready systems and contribute to the evolution of our AI engineering practices.
What do we value?
- 5+ years of professional backend development experience with Python.
- 2+ years of hands-on experience delivering LLM-based solutions in production.
- Experience with Azure OpenAI and/or the OpenAI API.
- Practical experience with LangChain and LangGraph.
- Experience building production RAG systems using Azure AI Search or similar technologies.
- Strong knowledge of FastAPI, asynchronous programming and streaming.
- Experience with LLM evaluation and observability.
- Experience using AI coding tools such as Claude Code or Codex, and working with skills and MCP servers.
- Professional working proficiency in English.
Nice to have
- Experience with Azure AI Foundry or Azure AI Document Intelligence.
- Familiarity with Langfuse, MLflow or Databricks.
- Knowledge of spec-driven development (SDD).
- Experience deploying and monitoring AI applications in enterprise cloud environments.