Senior Full Stack Developer Next.Js/Node.Js

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.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.Work with Azure App Services, Cosmos DB, Application Insights and monitoring tools.Collaborate closely with the Tech Lead, Product Owner and international stakeholders.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.Fluent English communication skills (B2+).Experience with Terraform, Bicep, observability tooling, regulated industries, security and compliance will be valued.Two onsite days per week Flexible working hours.A hybrid working model that supports a healthy work-life balance.Private medical insurance.An annual budget for training and professional development.Join our team, contribute to innovative projects and continue growing alongside professionals who are passionate about technology.InnoIT Consulting Barcelona Meetup: InnoIT Consulting Madrid Meetup: We welcome people from all backgrounds, experiences and professional paths, and we particularly encourage applications from groups traditionally underrepresented in the technology sector.We do not discriminate based on gender, age, origin, nationality, sexual orientation, gender identity or expression, religion, disability, or any other status protected by applicable law.We work to build a diverse, respectful and inclusive workplace where everyone has equal opportunities for professional growth, development and recognition.If you’re interested in working in an international environment with modern technologies, we’d love to hear from you!

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. Fluent English communication skills (B2+). Experience with Terraform, Bicep, observability tooling, regulated industries, security and compliance will be valued.

A hybrid working model that supports a healthy work-life balance. Private medical insurance. An annual budget for training and professional development. Join our team, contribute to innovative projects and continue growing alongside professionals who are passionate about technology. InnoIT Consulting Barcelona Meetup: InnoIT Consulting Madrid Meetup: We welcome people from all backgrounds, experiences and professional paths, and we particularly encourage applications from groups traditionally underrepresented in the technology sector. We do not discriminate based on gender, age, origin, nationality, sexual orientation, gender identity or expression, religion, disability, or any other status protected by applicable law. We work to build a diverse, respectful and inclusive workplace where everyone has equal opportunities for professional growth, development and recognition. If you’re interested in working in an international environment with modern technologies, we’d love to hear from you!