Senior Fullstack Engineer

Septeo ES
📍 Barcelona, Cataluña, Spain 💼 Full-time 🕒 Posted March 02, 2026

Job Description

Descripción del empleo

How you'll have impact

  • Architect a New Suite: You will be pivotal in building a brand-new product suite that spans multiple internal products and companies, tackling challenges in scalability, reusability (Monorepo), and multi-tenancy.
  • Own the Full Vertical: You won’t just hand off APIs. You’ll design resilient backend services (Node.js/Kotlin) and consume them in rich, AI-native UIs (Next.js/React).
  • Build AI-Native Experiences: From backend agents using LangChain to streaming generative UIs with the Vercel AI SDK, you will bring AI into the core of the user experience.
  • Drive Engineering Excellence: Your input on architecture is expected. You’ll champion Domain-Driven Design (DDD), clean code, and performance optimization across the entire stack.

What you'll do

  • Ship end-to-end features using TypeScript (Node.js/Next.js) , wh...

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Job Details

  • Location Barcelona, Cataluña
  • Job Type Full-time
  • Category Informática y tecnología
  • Posted Date March 02, 2026
  • Application Deadline April 11, 2026