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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Full Stack Developer (Mid-Senior) - React / Node.Js / Typescript - **Company:** Ticket Merchant - **Location:** Valladolid, Spain - **Contract:** Permanent contract - **Skills:** Amazon Web Services, Microsoft Azure, Databases, Decision Support Systems, DevOps, Linux System Administration, Microsoft SQL Server, Node.Js, Posix, RabbitMQ, Next.js, Transact-SQL, TypeScript, Workflow Management Systems, Cloud Platform System, ReactJS, Software Application Programming, Reliability of Systems, Backend, Git, Event Driven Architecture, Containerization, Integration Tests, Kubernetes, Apache Kafka, Front End Software Development, Docker, Microservices - **Published:** September 6, 2026 - **Apply:** https://www.buscojobs.com.es/full-stack-developer-mid-senior-react-node-js-typescript-en-valladolid-ID-369625604 ## About the Role 5+ years of professional experience in full stack development. Strong proficiency with React and TypeScript. Real git management via terminal. Experience with automation systems and backend workflow orchestration. Solid knowledge of databases (mainly Microsoft SQL, Transact-SQL). Familiarity with testing frameworks and writing unit/integration tests. Understanding of scalable architectures, cloud environments (AWS/GCP/Azure), and modern DevOps practices. Strong problem-solving skills and ability to work in an agile, fast-paced environment. Fluent in English and Spanish. Nice to Have Experience with microservices architectures. Knowledge of event-driven systems (Kafka, RabbitMQ, etc.). Experience in Linux environments and POSIX systems. Exposure to CI/CD pipelines and containerization (Docker, Kubernetes). ## Description TO APPLY FOR THIS POSITION, YOU SHOULD HAVE AT LEAST 5 YEARS OF EXPERIENCE DEVELOPING APPLICATIONS IN THE ENVIRONMENT DESCRIBEDPor favor, lea detenidamente la información de esta oferta de empleo para entender exactamente qué se espera de los posibles candidatos.About UsTicket Merchant is a fast-growing business operating at the intersection of technology and live events, building scalable platforms that power pricing, automation, and data-driven decision making. Our backend systems are the backbone of our business, and we're looking for a Backend Developer to help us scale, innovate, and deliver. While the company is based in Australia, our team is located around the world. We are looking for a professional based preferably in Spain. Domain of English language is a must, as the company official language is English, along with Spanish for daily use with the local team. The Role as a Mid-Senior Backend Developer, you'll design, build, and maintain high-performance backend services with Node.Js (mainly Next.Js) and TypeScript. You'll work closely with our product and data teams to build powerful automations, improve system scalability, and deliver new features that directly impact the business.What You'll DoDevelop and maintain frontend code for a clean and optimized internal app in React (mandatory use of TypeScript).Develop and maintain backend services using Node. Js and, mainly, Next. Js (mandatory use of TypeScript).Design and implement automation tools and workflows that streamline operations.Collaborate with product and data teams to deliver features that drive business growth.Ensure system reliability, scalability, and performance at high loads.Write clean, testable, and maintainable code following best practices.Contribute to architectural decisions and continuous improvement of our backend stack.What We're Looking For5+ years of professional experience in full stack development.Strong proficiency with React and TypeScript.Real git management via terminal.Experience with automation systems and backend workflow orchestration.Solid knowledge of databases (mainly Microsoft SQL, Transact-SQL).Familiarity with testing frameworks and writing unit/integration tests.Understanding of scalable architectures, cloud environments (AWS/GCP/Azure), and modern DevOps practices.Strong problem-solving skills and ability to work in an agile, fast-paced environment.Fluent in English and Spanish.Nice to HaveExperience with microservices architectures.Knowledge of event-driven systems (Kafka, RabbitMQ, etc.).Experience in Linux environments and POSIX systems.Exposure to CI/CD pipelines and containerization (Docker, Kubernetes).Why Join Us?Work in a dynamic and innovative environment where technology drives business impact.Opportunity to own features end-to-end and influence architectural decisions.Be part of a collaborative, international team that values growth and creativity. xhfqzwmCompetitive compensation and flexible working setup. ## Related Videos - [Build and Deploy a Fullstack App with Open Source Tooling](https://www.wearedevelopers.com/videos/775-build-and-deploy-a-fullstack-app-with-open-source-tooling) - [Docker Compose: Rediscovered](https://www.wearedevelopers.com/videos/1978-docker-compose-rediscovered) - [Using WebAssembly to run, extend, and secure your application](https://www.wearedevelopers.com/videos/652-using-webassembly-to-run-extend-and-secure-your-application) - [How a Small Team Shrank a Microsoft Monorepo by 94%](https://www.wearedevelopers.com/videos/1236-how-a-small-team-shrank-a-microsoft-monorepo-by-94) - [Docker build without Docker](https://www.wearedevelopers.com/videos/100114-docker-build-without-docker) - [On developing smartphones on wheels](https://www.wearedevelopers.com/videos/258-on-developing-smartphones-on-wheels) ## Related Articles - [React Developer Salary [2023]](https://www.wearedevelopers.com/magazine/198-react-developer-salary-2023) - [Fullstack Developer Salary UK](https://www.wearedevelopers.com/magazine/251-fullstack-developer-salary-uk) - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs) - [What’s the Difference Between Frontend and Backend Development?](https://www.wearedevelopers.com/magazine/240-what-s-the-difference-between-frontend-and-backend-development) - [7 Most Popular Web Developer Jobs in Europe](https://www.wearedevelopers.com/magazine/163-7-most-popular-web-developer-jobs-in-europe) - [What’s the Difference between a Junior, Mid, and Senior Developer?](https://www.wearedevelopers.com/magazine/238-what-s-the-difference-between-a-junior-mid-and-senior-developer)