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SEPTEO

Senior Fullstack Engineer

SEPTEO
Spain · Full-time · Mid-Senior
Descripción de la empresa

We are building the next generation of cloud-native software for the hospitality industry. Our platform powers complex, multi-tenant environments across multiple companies and product lines, serving high-demand operational workflows at scale.

We operate in a high-availability, high-performance context where reliability and scalability are non-negotiable. Now, we are evolving the platform toward AI-native capabilities, integrating intelligent automation, AI-assisted workflows, and data-driven decision layers directly into our core services.

We are a product-driven, engineering-first organization. We value architectural thinking, ownership, continuous delivery, and pragmatic innovation.

If you enjoy designing resilient distributed systems and want to help evolve a mature platform into an AI-native ecosystem, you’ll feel at home here.

Descripción del empleo

We're on a mission to make hotel operations effortless. Our cloud-native platform already powers thousands of properties worldwide, and we're doubling down on AI-driven automation to remove the busy-work from hospitality.

We're a lean, product-obsessed team that values curiosity, data-driven decisions and shipping to production daily. If you love turning complex problems into elegant, resilient systems, we'd love to meet you.

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), while maintaining or integrating with services in Kotlin/Java. Craft modern frontends with React, Tailwind, and Vercel AI SDK, managing complex state with TanStack Query and Zustand.
  • Engineer AI agents and workflows (LangChain, MCP) that integrate retrieval, memory, and tool use.
  • Own your infrastructure: manage deployments using Terraform (IaC) on AWS/Kubernetes and handle Vercel configurations for the frontend.
  • Obsess over quality: Maintain high confidence with Playwright (E2E) and Kotest/Jest/Vitest (Unit), and continuously tune performance (latency, Core Web Vitals).
  • Leverage AI tooling (Copilot, Cursor, Claude) to accelerate development and share workflows with the team.

Requisitos

  • 6+ years building production software.
  • True Fullstack Fluency: Deep expertise in TypeScript (React/Node.js) is a must. Familiarity with Kotlin or Java is highly valued.
  • Cloud Native: Proven experience running containerized workloads in AWS, Kubernetes, or serverless environments.
  • Data Polyglot: Comfortable with both relational and NoSQL databases (MySQL, DynamoDB, Redis).
  • Architectural Eye: You understand DDD and distributed systems patterns, not just syntax.
  • Communication: You communicate clearly in Spanish / English and thrive on feedback loops.

Nice-to-have superpowers

  • Experience scaling Monorepos (Turborepo, Nx).
  • Hands-on with AI coding assistants or agent frameworks (LangChain, Autogen).
  • Experience with GitOps or MLOps pipelines.

Información adicional

Why you'll love it here

  • Remote-first culture with flexible schedules and core hours.
  • Goal-oriented work with an amazing, agile, cross-functional team.
  • Learning budget and career plan.
  • An international and diverse environment where you matter.

Key Skills

Ranked by relevance

ai typescript cloud ddd continuous delivery kubernetes serverless terraform dynamodb kotlin react nosql mysql mlops java aws
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Country Guide

Spain

Strong city options with excellent lifestyle

Posted
Apr 09, 2026
Type
Full-time
Level
Mid-Senior
Location
Barcelona
Company
SEPTEO

Industries

Software Development

Categories

Information Technology

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