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

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

Ventajas ofrecidas por este puesto de trabajo

High Impact

Professional Development

Flexible culture

Global opportunities

Vibrant community

Total rewards

Descripción de la vacante

Wizeline busca un/a Senior Full Stack Software Engineer (TypeScript/React) para unirse a su equipo en España. Se valorará disponibilidad para trabajar en Madrid u oficinas de clientes, con opción de trabajo remoto, siempre que residas en España y puedas asistir al menos 3 días a la semana.

El rol implica desarrollo full stack, integración de IA y diseño de arquitecturas de agentes, colaborando con PMs, ingenieros y equipos de datos para entregar soluciones de alto impacto.

Formación

• 8+ años de experiencia en software engineering.
• Bachelor’s degree en CS, ingeniería o campo relacionado.
• Proficiencia en inglés y español.
• Experto en TypeScript + React en entornos de producción.
• Experiencia práctica implementando LLMs e integrándolos en aplicaciones.
• Fuerte comprensión de la arquitectura de agentes y flujos multiagente.

Responsabilidades

• Desarrollo Full Stack: crear aplicaciones escalables con TypeScript y React.
• Integración de IA: incorporar y optimizar LLMs en soluciones empresariales.
• Arquitectura de agentes: diseñar flujos de trabajo con memoria, planificación y uso de herramientas.
• Colaboración: trabajar estrechamente con PMs, ingenieros y equipos de datos.
• Adaptabilidad: trabajar en entornos dinámicos y con prioridades cambiantes.

Conocimientos

TypeScript

React

LLMs

Agent architecture

Software engineering fundamentals

English

Spanish

Educación

Bachelor’s degree in Computer Science, Engineering, or related field

Descripción del empleo

Descripción del trabajo

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.

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.

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.