Senior Full Stack Software Engineer (Typescript / React) - Ai & Llms

Wizeline; Albacete; Híbrido; EUR 90.000 - 120.000; Jornada completa

Ventajas ofrecidas por este puesto de trabajo

Professional development

Flexible and collaborative culture

Total rewards

Descripción de la vacante

Wizeline, a global AI-native technology solutions provider, seeks a Senior Full Stack Software Engineer (TypeScript / React) to join our Spain team. Based in Castilla-La Mancha with optional remote work, you will develop scalable TS/React applications and integrate AI/LLMs into enterprise solutions.

You’ll collaborate with cross-functional teams, design agent workflows, and contribute to memory, planning, and tool-use architectures while operating in a bilingual English/Spanish environment.

Formación

• 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.

Responsabilidades

• Full stack development with TypeScript and React.
• AI integration: implement and optimize LLMs within enterprise solutions.
• Agent architecture: design memory, planning and tool-use workflows.
• Collaborate with product managers, engineers and data teams to deliver high-quality solutions.
• Adapt to fast-paced environments and shifting priorities.

Conocimientos

TypeScript

React

LLMs

Agent architecture

English & Spanish

Educación

Bachelor’s degree in CS/Engineering

Herramientas

LLMs integration tools

Descripción del empleo

Senior Full Stack Software Engineer (TypeScript / React) - AI & LLMs Wizeline Castilla-La Mancha, castilla-la mancha, Spain

Senior Full Stack Software Engineer (TypeScript / React) – AI & LLMs

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.

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.

What we offer

• Commitment to Professional Development
• Flexible and Collaborative Culture
• Total Rewards (benefits vary by location and employment type)

Find out more about our culture here.

Senior Full Stack Software Engineer (TypeScript / React) - AI & LLMs Castilla-La Mancha, castilla-la mancha, Spain