.NET Developer with CMS experience (Sitefinity)

UST Global is seeking a .NET Developer with CMS experience (Sitefinity) to support the development and maintenance of enterprise web platforms. This role focuses on building and customizing web applications using ASP.NET technologies, with a strong emphasis on integration, content management, and scalable web solutions within a CMS environment. Please note, working hours are 14:00 - 23:00 Polish time (7 am - 4 pm CST timezone). Key Responsibilities: Develop, customize, and maintain web applications using .NET technologies and Sitefinity CMSBuild scalable and high-performance web solutions using C# and ASP.NET MVC / ASP.NET CoreCreate and maintain server-side rendered UI using HTML, CSS, JavaScript, and Razor viewsDesign and integrate RESTful APIs and connect with third-party servicesWork with SQL Server for data storage, querying, and troubleshootingImplement best practices for authentication, authorization, application security, and performance optimizationManage source code using Git, following standard branching strategiesContribute to and support CI/CD workflows and deployment processesCollaborate with DevOps and cross-functional teams on environment setup and releasesEnsure adherence to modern web standards, including caching strategies and OWASP security practicesSupport and enhance CMS functionality, including content workflows, media management, and content structure Mandatory Skills: Strong experience with C# / .NETHands-on experience with ASP.NET (MVC) and/or ASP.NET CoreSolid knowledge of HTML, CSS, and JavaScriptExperience with Razor (server-side rendering in .NET)Understanding of REST APIs / JSON integrationsBasic experience with SQL Server (queries, data handling)Familiarity with Git (branching strategies, version control)Experience with CI/CD pipelines and deployment workflowsUnderstanding of web fundamentals (authentication, authorization, caching, performance, security)Experience with Sitefinity CMS (or any CMS platform)Basic knowledge of AWS (EC2 or similar environments) Nice to Have: Exposure to cloud environments (AWS/Azure)Familiarity with data/analytics tools (e.g., Power BI, DBT, Alteryx)