> Markdown version of [/jobs/ext/2751784-senior-full-stack-software-engineer-typescript-react-ai-llms](https://www.wearedevelopers.com/jobs/ext/2751784-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:** Oña, 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-ona-ID-369617591

## About the Role

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.

## Description

Senior Full Stack Software Engineer (TypeScript / React) - AI & LLMsWe 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 aSenior Full Stack Software Engineer (TypeScript / React) - AI & LLMsto 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 ResponsibilitiesFull 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 Skills8+ years of experience insoftware engineeringwith strong fundamentals (data structures, design patterns, scalability).Bachelor's degree in Computer Science, Engineering, or related field.Advanced English and Spanish proficiency.Proven expertise withTypeScript + Reactin production environments.Hands-on experience implementingLLMsand integrating them into applications.Strong understanding ofagent architectureand multi-agent workflows.Nice-to-haveAI Tooling Proficiency: Ability to leverage AI tools for drafting, analysis, or automation.Experience inproject managementwithin self-organizing teams.Familiarity withevaluation frameworksand monitoring AI performance.What we offerA High-Impact EnvironmentCommitment to Professional DevelopmentFlexible and Collaborative CultureGlobal OpportunitiesVibrant CommunityTotal 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. Refactor accordingly.](https://www.wearedevelopers.com/videos/100103-your-next-10x-engineer-isn-t-in-your-city-refactor-accordingly)
- [Distributed search under the hood](https://www.wearedevelopers.com/videos/256-distributed-search-under-the-hood)
- [Vuejs and TypeScript- Working Together like Peanut Butter and Jelly](https://www.wearedevelopers.com/videos/127-vuejs-and-typescript-working-together-like-peanut-butter-and-jelly)

## Related Articles

- [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs)
- [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)
- [Dev Digest 132 - Binging WADFlix?](https://www.wearedevelopers.com/magazine/473-dev-digest-132-binging-wadflix)
- [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated)
- [Are Software Engineer Wages Being Pushed Down? A Report on Tech Salaries](https://www.wearedevelopers.com/magazine/417-are-software-engineer-wages-being-pushed-down-a-report-on-tech-salaries)