Senior Developer, C# SQL

GreetingsWe are Hiring .NET Developer position in Spain1 role onlyLocation: Spain (Remote)Ready to work on ShiftsPermanent35-40K€ max BudgetRole 1. NetExperience ProfileFor this role we require a minimum of 7 years of proven experience as developer and technology lead, with solid background in managing enterprise Microsoft solutions and critical releases with high visibility.Core Technologies EcosystemBelow is the consolidated list of the main systems and technologies involved. The list reflects the principal applications, and I also include complementary technologies typically associated with this type of landscape:Web Server / ASP Classic / .NET Applications# WC (Web Server) – IIS, ASP Classic, .NET, SQL Server, Windows Server administration, Web.config management, authentication and authorization models.# EW (Web Server) – IIS, ASP Classic, .NET services, integrations, logging frameworks, performance tuning.# GL (Web Server) – ASP Classic, .NET components, IIS modules, SQL Server, encryption libraries, error handling.# AG (SharePoint Server) – SharePoint 2016/2019 Server, IIS, Windows File System, Timer Jobs, server–side scripting.# DJ (SharePoint Server) – SharePoint Server farm administration, custom .NET web parts, workflows, SQL Server.# PA (SharePoint Server) – IIS + SharePoint Server, .NET integrations, document libraries.# IO (SharePoint Server) – legacy ASP / IIS + SharePoint Server, customizations.# FI (SharePoint Server) – SharePoint Server + IIS, reporting services.# PA (SharePoint Server) – application lifecycle on server farms.SharePoint Online Landscape10. PC2 (SharePoint Online) – SharePoint Online, Power Automate, SPFx, REST Microsoft Graph, Azure AD.11. PC3 (SharePoint Online) – SharePoint Online, Graph API, Power Platform integrations.12. PC4 (SharePoint Online) – SharePoint Online, metadata management, Git repositories.13. PC5 (SharePoint Online) – SharePoint Online, DLP policies, ALM.14. CH (SharePoint Online) – SharePoint Online + Power Platform.15. CH (SharePoint Online) – modern document management.16. CT (SharePoint Online) – Microsoft Graph + Git.17. GS (SharePoint Online) – libraries + integrations.18. RL (SharePoint Online) – collaboration sites.19. GD=SB (SharePoint Online) – structured repositories.20. GD=SB (SharePoint Online) – Microsoft ecosystem.Power BI / Access / Office / Azure Services21. BU (Power BI) – Power BI Service, Power BI Desktop, DAX, M language, gateways, incremental refresh, SQL Server, SharePoint as data source, Git versioning for PBIX.22. CC (Office Access Package) – Microsoft Office Suite, Access databases, Excel advanced, VBA, Git repositories.23. BG – Azure Cognitive Search, indexers, API management, security in Azure.24. BG – Azure Cognitive Search integrations with .NET and SharePoint.25. BG – monitoring and Git repositories.Complementary Technologies to be consideredSQL Server Reporting ServicesAzure AD / Entra IDMicrosoft GraphEncryption / certificate managementGit / Azure DevOps ReposPower Automate Cloud & On-Prem GatewaysSharePoint Framework (SPFx / SPFx Online / SPFx Server hybrid)Systems interoperability between IIS – ASP Classic – .NET – SharePoint – Power BI – Azure Cognitive ServicesEnterprise logging, monitoring and secure file upload components.Key Capability RequiredIt is important that the candidate has demonstrable experience in:Managing change and deployment across different environments (Development → CERT → Production).Continuous integration and use of version control systems with Git , repositories and branching strategies.Change management between legacy and modern Microsoft stacks , ensuring quality and compliance without disrupting business operations.Enterprise ALM processes, disciplined releases and validation cycles.Responsibilities OverviewAnalyse, design and validate fixes for ASP Classic, .NET and SharePoint (Online & Server) systems.Ensure integrations with Power BI and Azure Cognitive Search.Coordinate interoperability on IIS and SQL Server.Support secure file upload and historical audit scripts.