> Markdown version of [/jobs/ext/2766183-senior-full-stack-software-engineer-typescript-react-ai-llms](https://www.wearedevelopers.com/jobs/ext/2766183-senior-full-stack-software-engineer-typescript-react-ai-llms). 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). --- # Senior Full Stack Software Engineer (Typescript / React) - Ai & Llms - **Company:** Wizeline - **Location:** Vitoria-Gasteiz, Spain (Remote available) - **Contract:** Permanent contract - **Skills:** Artificial Intelligence, Application Integration Architecture, Data Structures, Software Design Patterns, Performance Tuning, Software Engineering, TypeScript, ReactJS, Large Language Models, Multi-Agent Systems, Information Technology - **Published:** September 6, 2026 - **Apply:** https://www.buscojobs.com.es/senior-full-stack-software-engineer-typescript-react-ai-llms-en-vitoria-ID-370099114 ## About the Role Must-have Skills 8+ years of experience in software engineering with strong fundamentals (data structures, design patterns, scalability). Bachelor's degree in Computer Science, Engineering, or related field. Advanced English and Spanish proficiency. Proven expertise with TypeScript + React in production environments. Hands-on experience implementing LLMs and integrating them into applications. Strong understanding of agent architecture and multi-agent workflows. Nice-to-have AI Tooling Proficiency : Ability to leverage AI tools for drafting, analysis, or automation. Experience in project management within self-organizing teams. Familiarity with evaluation frameworks and monitoring AI performance. xbhjioe What we offer A High-Impact Environment Commitment to Professional Development Flexible and Collaborative Culture Global Opportunities Vibrant Community Total Rewards (benefits vary by location and employment type) Find out more about our culture here . ## Description Senior Full Stack Software Engineer (TypeScript / React) - AI & LLMs ¿Es usted el candidato adecuado para esta oportunidad?Asegúrese de leer la descripción completa a continuación.We are: Wizeline, a global AI-native technology solutions provider, develops cutting-edge, AI-powered digital products and platforms.We partner with clients to leverage data and AI, accelerating market entry and driving business transformation.As a global community of innovators, we foster a culture of growth, collaboration, and impact.With the right people and the right ideas, there's no limit to what we can achieve.Are you a fit?We are seeking a Senior Full Stack Software Engineer (TypeScript / React) - AI & LLMs to join our team in Spain.This role requires advanced proficiency in both English and Spanish, and availability to attend client offices in Madrid or other locations as needed.Remote work is possible, but candidates must be based in Spain and available at least 3 days per week.Key Responsibilities Full Stack Development : Build scalable applications using TypeScript and React.AI Integration : Implement and optimize Large Language Models (LLMs) within enterprise solutions.Agent Architecture : Design agentic workflows, including memory, planning, and tool use.Collaboration : Work closely with product managers, engineers, and data teams to deliver high-quality solutions.Adaptability : Thrive in fast-paced environments and adjust to shifting priorities.Must-have Skills 8+ years of experience in software engineering with strong fundamentals (data structures, design patterns, scalability).Bachelor's degree in Computer Science, Engineering, or related field.Advanced English and Spanish proficiency.Proven expertise with TypeScript + React in production environments.Hands-on experience implementing LLMs and integrating them into applications.Strong understanding of agent architecture and multi-agent workflows.Nice-to-have AI Tooling Proficiency : Ability to leverage AI tools for drafting, analysis, or automation.Experience in project management within self-organizing teams.Familiarity with evaluation frameworks and monitoring AI performance.xbhjioe What we offer A High-Impact Environment Commitment to Professional Development Flexible and Collaborative Culture Global Opportunities Vibrant Community Total Rewards (benefits vary by location and employment type) Find out more about our culture here . ## Related Videos - [Phel, a native Lisp for PHP](https://www.wearedevelopers.com/videos/791-phel-a-native-lisp-for-php) - [Do TypeScript without TypeScript](https://www.wearedevelopers.com/videos/327-do-typescript-without-typescript) - [Watch Tests Go Brrrr! : Getting Started with Cypress in ReactJS](https://www.wearedevelopers.com/videos/282-watch-tests-go-brrrr-getting-started-with-cypress-in-reactjs) - [Your next 10x engineer isn't in your city. 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