SEPTEO

Senior Fullstack Engineer

SEPTEO  •  Barcelona, ES (Onsite)  •  2 months ago
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Job Description

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.

SEPTEO

About SEPTEO

In the past, we used to have a job, a partner, a home for life... But that is all in the past. Today we move from place to place. We are more mobile.

A great opportunity? We change job.

A great idea? We create our own company.

Feel like taking a break from things? We pack our bags.

Our lifes go faster, further.

And Septeo is there for it all: to provide professionals with the right solutions. And even though we might not always be visible, we are still there. Behind a wedding, a new property, a professional development, a trip over a lifetime... It is a huge responsibility. Our responsibility.

Septeo, behind each moment in life.

Industry
IT & Software
Company Size
1,001-5,000 employees
Headquarters
LATTES, FR
Year Founded
Unknown
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