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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Specialist I - Software Engineering, Madrid - **Company:** Ust - **Location:** Madrid, Spain - **Contract:** Permanent contract - **Skills:** ASP.NET, Java (Programming Language), JavaScript (Programming Language), .NET Framework, Agile Methodology, Software Quality, Continuous Integration, Relational Databases, DevOps, Design of User Interfaces, Microsoft SQL Server, Oracle (Applications), Scrum Methodology, Service-Oriented Architecture, Software Engineering, SQL Databases, Systems Integration, TypeScript, Data Processing, .NET Core, ReactJS, Spring-boot, Backend, Git, Front End Software Development, Restful APIs, Software Version Control - **Published:** September 20, 2026 - **Apply:** https://www.buscojobs.com.es/specialist-i-software-engineering-madrid-en-madrid-ID-371992521 ## About the Role YOUR PROFILE - Proven experience as a Full Stack Developer in enterprise environments. - Strong hands on experience with React for frontend development. - Solid experience integrating frontend applications with RESTful APIs. - Proven experience with backend development using Java and Spring Boot or . NET Core / ASP.NET Core. - Experience working with relational databases and SQL (Oracle, SQL Server, or equivalent). - Familiarity with JavaScript / TypeScript and modern frontend practices. - Experience with version control systems (Git). - Understanding of Agile ways of working (Scrum / Kanban). - Basic understanding of CI/CD concepts and DevOps environments. - Awareness of production and operational aspects of applications. - Strong problem solving skills and ownership mindset. - Comfortable working in complex, regulated enterprise environments. - Good communication skills and fluency in English. Skills: reactjs,spring boot,asp.Net,sql, react, spring boot, asp.Net, sql ## Description Specialist I - Software Engineering PROSPECT SO FULL STACK DEVELOPER (React + Java or .NET Backend) RESPONSIBILITIES - Design, develop, and maintain frontend components using React, aligned with enterprise UI standards.- Implement user interfaces that integrate seamlessly with backend services built in Java (Spring Boot) or .NET Core.- Consume RESTful APIs and ensure correct data handling, error states, and performance.- Design, develop, and maintain backend services in a distributed, service oriented architecture.- Write and maintain unit and integration tests across frontend and backend components.- Collaborate closely with backend developers, QA engineers, DevOps, and product stakeholders.- Participate actively in refinement, planning, development, and delivery activities.- Ensure code quality, maintainability, and alignment with architectural standards.- Support applications running in production, including analysis of frontend and backend issues.- Contribute to continuous improvement of development practices, tooling, and technical solutions.YOUR PROFILE - Proven experience as a Full Stack Developer in enterprise environments.- Strong hands on experience with React for frontend development.- Solid experience integrating frontend applications with RESTful APIs.- Proven experience with backend development using Java and Spring Boot or .NET Core / ASP.NET Core.- Experience working with relational databases and SQL (Oracle, SQL Server, or equivalent).- Familiarity with JavaScript / TypeScript and modern frontend practices.- Experience with version control systems (Git).- Understanding of Agile ways of working (Scrum / Kanban).- Basic understanding of CI/CD concepts and DevOps environments.- Awareness of production and operational aspects of applications.- Strong problem solving skills and ownership mindset.- Comfortable working in complex, regulated enterprise environments.- Good communication skills and fluency in English.Skills: reactjs,spring boot,asp.Net,sql, react, spring boot, asp.Net, sql ## Related Videos - [Navigating the Corporate Jungle: Life as a Developer in a large Company](https://www.wearedevelopers.com/videos/621-navigating-the-corporate-jungle-life-as-a-developer-in-a-large-company) - [Building Multi-Tenant ASP.NET Core Applications: Best Practices and Real-World Solutions](https://www.wearedevelopers.com/videos/1552-building-multi-tenant-asp-net-core-applications-best-practices-and-real-world-solutions) - [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) - [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) - [Your next 10x engineer isn't in your city. Refactor accordingly.](https://www.wearedevelopers.com/videos/100103-your-next-10x-engineer-isn-t-in-your-city-refactor-accordingly) - [Developing ASP.NET Core Microservices with Dapr: A practical guide](https://www.wearedevelopers.com/videos/1528-developing-asp-net-core-microservices-with-dapr-a-practical-guide) ## Related Articles - [Where To Find Software Engineering Jobs](https://www.wearedevelopers.com/magazine/396-where-to-find-software-engineering-jobs) - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated) - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs) - [Where to Find Entry-Level Software Engineering Jobs](https://www.wearedevelopers.com/magazine/397-where-to-find-entry-level-software-engineering-jobs) - [The 12 Best Jobs for Software Engineers](https://www.wearedevelopers.com/magazine/401-the-12-best-jobs-for-software-engineers) - [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)