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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Ai Software Engineer (Full Stack) Id51390 - **Company:** Agileengine - **Location:** Madrid, Spain - **Contract:** Permanent contract - **Skills:** Application Programming Interfaces (APIs), Artificial Intelligence, Amazon Web Services, Software Quality, Continuous Integration, Cursor (Graphical User Interface Elements), Python (Programming Language), Machine Learning, Performance Tuning, Software Engineering, Systems Integration, Web Applications, Data Ingestion, Large Language Models, Multi-Agent Systems, Prompt Engineering, Reliability of Systems, Backend, AI Platforms, Low Latency, HuggingFace, Front End Software Development, Golang - **Published:** September 8, 2026 - **Apply:** https://www.buscojobs.com.es/ai-software-engineer-full-stack-id-51390-en-madrid-ID-369280803 ## About the Role 5+ years of full-stack development experience Experience in Rust or Golang 2+ years of AI/ML engineering experience building or integrating AI-driven systems AI-assisted code experience with tools such as GH Copilot, Cursor, or Windsurf Proven ability to gather ambiguous requirements and independently develop AI prototypes/demos within short timelines (1-2 weeks) Strong experience working with LLM APIs, prompt engineering, embeddings, and vector databases Experience designing scalable AI architectures (RAG, agents, model orchestration, evaluation pipelines) Proven ability to navigate and improve large, production-scale codebases Strong understanding of performance optimization, system design, and low-latency architectures Excellent communication and documentation skills in a fast-moving team environment Demonstrated experience deploying AI features into production environments Upper-intermediate English level NICE TO HAVES 2+ years of team lead/management experience Strong skills in Python Experience with CI/CD pipelines Experience with cloud platforms and AI tools such as Vertex on GCP, SageMaker, Bedrock from AWS, and similar ones Experience with AI frameworks/SDKs (LangChain, LlamaIndex, Hugging Face, etc.) Experience building AI agents or multi-agent systems Start-up mindset: comfortable experimenting, iterating quickly, and tackling ambiguous challenges ## Description AgileEngine is an Inc. **** company that creates award-winning software for Fortune 500 brands and trailblazing startups across 17+ industries.We rank among the leaders in areas like application development and AI/ML, and our people-first culture has earned us multiple Best Place to Work awards.WHY JOIN USIf you're looking for a place to grow, make an impact, and work with people who care, we'd love to meet you!ABOUT THE ROLEWe are looking for a Senior/Lead AI Software Engineer (Full Stack) to build and scale intelligent, AI-driven products from concept to production in rapid iteration cycles.This role is pivotal in architecting end-to-end AI solutions-leveraging LLMs, RAG pipelines, vector databases, and Rust or Golang-to power high-performance, low-latency applications.You'll shape scalable AI architectures, automate workflows, and drive innovation in a fast-growing environment that values ownership, speed, and technical excellence.WHAT YOU WILL DOArchitect and develop robust, scalable AI-powered features across frontend and backend;Design and implement end-to-end AI solutions, from data ingestion to model integration and user-facing interfaces;Rapidly gather business and technical requirements and translate them into functional AI demos within 1-2 weeks;Integrate LLMs and AI services (e.g., APIs, vector databases, RAG pipelines) into production-ready applications;Work deeply in the existing web app codebase, enhancing core modules and integrating AI capabilities;Architect high-throughput, low-latency systems that scale reliably;Collaborate closely with Product, Design, and Engineering;Maintain high standards for documentation, testing, observability, and code quality;Lead technical initiatives to automate manual workflows using AI and improve system reliability.MUST HAVES5+ years of full-stack development experienceExperience in Rust or Golang2+ years of AI/ML engineering experience building or integrating AI-driven systemsAI-assisted code experience with tools such as GH Copilot, Cursor, or WindsurfProven ability to gather ambiguous requirements and independently develop AI prototypes/demos within short timelines (1-2 weeks)Strong experience working with LLM APIs, prompt engineering, embeddings, and vector databasesExperience designing scalable AI architectures (RAG, agents, model orchestration, evaluation pipelines)Proven ability to navigate and improve large, production-scale codebasesStrong understanding of performance optimization, system design, and low-latency architecturesExcellent communication and documentation skills in a fast-moving team environmentDemonstrated experience deploying AI features into production environmentsUpper-intermediate English levelNICE TO HAVES2+ years of team lead/management experienceStrong skills in PythonExperience with CI/CD pipelinesExperience with cloud platforms and AI tools such as Vertex on GCP, SageMaker, Bedrock from AWS, and similar onesExperience with AI frameworks/SDKs (LangChain, LlamaIndex, Hugging Face, etc.)Experience building AI agents or multi-agent systemsStart-up mindset: comfortable experimenting, iterating quickly, and tackling ambiguous challengesPERKS AND BENEFITSProfessional growth: Mentorship, TechTalks, and personalized growth roadmaps.Competitive compensation: USD-based pay with education, fitness, and team activity budgets.Exciting projects: Modern solutions with Fortune 500 and top product companies.Flextime: Flexible schedule with remote and office options.Meet Our Recruitment ProcessIt includes main stages: Application ? Coding Challenge ? Video Interview ? Technical Interview or Interview with the Hiring Manager(s).Each step helps us understand your skills and overall fit.If it's a match, you'll receive an offer.#J-*****-Ljbffr ## Related Videos - [The AI-Ready Stack: Rethinking the Engineering Org of the Future](https://www.wearedevelopers.com/videos/1706-the-ai-ready-stack-rethinking-the-engineering-org-of-the-future) - [Developing the Backend with Stefan Lingler, CTO at Shpock](https://www.wearedevelopers.com/videos/100360-developing-the-backend-with-stefan-lingler-cto-at-shpock) - [Go with the Flow: Stop the Leaks Before Your Memory's a Waterfall!](https://www.wearedevelopers.com/videos/100073-go-with-the-flow-stop-the-leaks-before-your-memory-s-a-waterfall) - [Hiring AI Native Talents](https://www.wearedevelopers.com/videos/100268-hiring-ai-native-talents) - [Nest.js - TypeScript in the backend can also be clean](https://www.wearedevelopers.com/videos/1033-nest-js-typescript-in-the-backend-can-also-be-clean) - [Scoring 2000 Products per Request: Performance Pitfalls in Golang](https://www.wearedevelopers.com/videos/2073-scoring-2000-products-per-request-performance-pitfalls-in-golang) ## Related Articles - [Navigating the AI Shift](https://www.wearedevelopers.com/magazine/629-navigating-the-ai-shift) - [How to Become an AI Engineer](https://www.wearedevelopers.com/magazine/331-how-to-become-an-ai-engineer) - [What is Agentic Programming and Why Should Developers Care?](https://www.wearedevelopers.com/magazine/625-what-is-agentic-programming-and-why-should-developers-care) - [MLOps And AI Driven Development](https://www.wearedevelopers.com/magazine/82-mlops-and-ai-driven-development) - [Dev Digest 120 - Apple and peers](https://www.wearedevelopers.com/magazine/455-dev-digest-120-apple-and-peers) - [Dev Digest 132 - Binging WADFlix?](https://www.wearedevelopers.com/magazine/473-dev-digest-132-binging-wadflix)