> Markdown version of [/jobs/ext/2515033-mid-senior-backend-developer](https://www.wearedevelopers.com/jobs/ext/2515033-mid-senior-backend-developer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Mid-Senior Backend Developer - **Company:** Ticket Merchant - **Location:** Spain - **Contract:** Permanent contract - **Skills:** Amazon Web Services, Microsoft Azure, Databases, DevOps, Linux System Administration, Microsoft SQL Server, Node.Js, Posix, RabbitMQ, Next.js, Transact-SQL, TypeScript, Workflow Management Systems, Cloud Platform System, ReactJS, Reliability of Systems, Backend, Event Driven Architecture, Containerization, Integration Tests, Kubernetes, Apache Kafka, Docker, Microservices - **Published:** August 31, 2026 - **Apply:** https://www.jobleads.com/es/job/eaae605447021902d4d9a6fe23ce0f4e8 ## About the Role * 5+ years of professional experience in full stack development. * Strong proficiency with React and TypeScript. * 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 * Develop 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. ## Related Videos - [Docker Compose: Rediscovered](https://www.wearedevelopers.com/videos/1978-docker-compose-rediscovered) - [From DevOps to Scaled DevOps: How We’re Rebuilding Continuous Delivery as a Platform](https://www.wearedevelopers.com/videos/100018-from-devops-to-scaled-devops-how-we-re-rebuilding-continuous-delivery-as-a-platform) - [Using WebAssembly to run, extend, and secure your application](https://www.wearedevelopers.com/videos/652-using-webassembly-to-run-extend-and-secure-your-application) - [Meet Your New BFF: Backend to Frontend without the Duct Tape](https://www.wearedevelopers.com/videos/682-meet-your-new-bff-backend-to-frontend-without-the-duct-tape) - [Docker build without Docker](https://www.wearedevelopers.com/videos/100114-docker-build-without-docker) - [DevOps Maturity Check – a way to balance autonomy and alignment](https://www.wearedevelopers.com/videos/58-devops-maturity-check-a-way-to-balance-autonomy-and-alignment) ## Related Articles - [What’s the Difference Between Frontend and Backend Development?](https://www.wearedevelopers.com/magazine/240-what-s-the-difference-between-frontend-and-backend-development) - [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) - [7 Most Popular Web Developer Jobs in Europe](https://www.wearedevelopers.com/magazine/163-7-most-popular-web-developer-jobs-in-europe) - [Find a Developer Job: 12 Best Job Sites For Developers](https://www.wearedevelopers.com/magazine/165-find-a-developer-job-12-best-job-sites-for-developers) - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs) - [Backend Developer Salary in Germany [2023]](https://www.wearedevelopers.com/magazine/196-backend-developer-salary-in-germany-2023)