Develop and manage large SharePoint repositories (SharePoint 2019 On-Premise). Build progressive web applications using VueJS and Angular, integrated with SharePoint 2019. Implement service workers and provide offline support for applications. Utilize PowerShell scripting to manage and update large SharePoint sites using CSOM, PNP SharePoint, and SSOM. Create and manage Nintex and SharePoint Designer workflows. Perform front-end development including JavaScript coding, UI design, wireframing, site layout creation, and web part application.