Senior Full-Stack / GenAI Engineer- BARCELONA
We are looking for a Senior Full-Stack / GenAI Engineer to join an international AI Products team working on the evolution of a secure, enterprise-grade GPT platform.
You will contribute mainly to back-end development (around 90%), with occasional front-end contributions, building secure and scalable features for document understanding, translation, APIs, automation, web usage and agentic capabilities.
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What you will do
- Design, build, test and monitor end-to-end product features.
- Develop and enhance back-end services using Node.js and TypeScript.
- Contribute to front-end development with Next.js and React.
- Design, implement and operate APIs.
- Work with Azure App Services, Cosmos DB, Application Insights and monitoring tools.
- Define usage KPIs and support dashboards, reports or metrics.
- Build automated workflows and operational scripts.
- Ensure solutions comply with security, regulatory and internal standards.
- Collaborate closely with the Tech Lead, Product Owner and international stakeholders.
What we are looking for
- At least 5 years of web application development experience, ideally in Azure environments.
- Strong hands-on experience with JavaScript / TypeScript and Node.js.
- Experience with Next.js and/or React.
- Solid experience with APIs, Azure DevOps and CI/CD pipelines.
- Experience owning the full testing lifecycle, including unit and E2E testing.
- Hands-on knowledge of Azure App Services, Cosmos DB, Application Insights and monitoring.
- Experience with AI APIs or frameworks such as OpenAI, Anthropic, Gemini or Azure AI.
- Knowledge of RAG and agentic / agent-based capabilities.
- Strong prompt engineering skills.
- Fluent English communication skills (B2+).
Experience with Terraform, Bicep, observability tooling, regulated industries, security and compliance will be valued.
Barcelona-based role. Two onsite days per week
Apply now and help shape secure GenAI capabilities at scale.
What we offer
Flexible working hours.
A hybrid working model that supports a healthy work-life balance. xqbhyrx
Competitive salary and a flexible compensation plan.