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

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.

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.

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.