Role / Job Title: L3 Support Engineer Dot Net Work Location: Livingston, United Kingdom Role Type: Contracting Mode of Working: Office-based Dot Net support L3 Engineer Retail domain The Role Dot Net Support Engineer L3 Support Dot Net (C#, VB.Net); JavaScript; Advanced SQL; REST APIs; Code-level debugging; Performance tuning; Incident/Problem/Change Management; Scripting (PowerShell/Shell); Application Monitoring Your Responsibilities Provide advanced L3 support for .Net and JavaScript-based applications Perform deep-dive analysis and resolve complex incidents within SLA Debug code-level issues and collaborate with engineering teams for permanent fixes Drive systemic improvements and performance optimization Support releases, UAT, and go-lives; maintain change quality and documentation Partner with upstream and downstream teams to ensure service continuity Your Profile Essential Skills / Knowledge / Experience .Net (C#, VB.Net), VB6, and JavaScript / Vue.js proficiency across application lifecycle Proficiency with T-SQL and DocumentDB Swift and Kotlin knowledge <...