Senior Fullstack Engineer

Company Description: 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. Job Description: 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. Qualifications: ● 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. Additional Information: 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.