> Markdown version of [/jobs/ext/3628407-l3-application-support-net-sql-hybrid-madrid](https://www.wearedevelopers.com/jobs/ext/3628407-l3-application-support-net-sql-hybrid-madrid). 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). --- # L3 Application Support - .Net & Sql (Hybrid Madrid) - **Company:** Ust - **Location:** Madrid, Spain - **Contract:** Permanent contract - **Skills:** .NET Framework, C Sharp (Programming Language), Distributed Systems, Microsoft SQL Server, SQL Databases, Backend, Apache Kafka, Restful APIs, Microservices - **Published:** October 8, 2026 - **Apply:** https://www.buscojobs.com.es/l-3-application-support-net-sql-hybrid-madrid-en-madrid-ID-375224606 ## About the Role NET, SQL, and distributed architectures. You will act as the escalation point for critical incidents, perform RCA, and coordinate resolution across teams, including on-call rotations.Required 3+ years in high-availability environments, strong backend skills in . NET/C#, and experience with REST APIs, Microservices, MQ, Kafka, and MSSQL. #J-*****-Ljbffr ## Description UST is seeking an experienced L3 Application Support Engineer to join a strategic banking project in Madrid, working on .NET, SQL, and distributed architectures.You will act as the escalation point for critical incidents, perform RCA, and coordinate resolution across teams, including on-call rotations.Required 3+ years in high-availability environments, strong backend skills in .NET/C#, and experience with REST APIs, Microservices, MQ, Kafka, and MSSQL.#J-*****-Ljbffr