L3 Support Engineer Dot Net

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#, );
JavaScript;
Advanced SQL; REST APIs;
Code-level debugging;
Performance tuning;
Incident/Problem/Change Management;
Scripting (Power Shell/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#, ), VB6, and JavaScript / Vue.js proficiency across application lifecycle Proficiency with T-SQL and Document

DB Swift and Kotlin knowledge Advanced SQL troubleshooting and tuning; data-model fluency for application triage REST API integration and debugging Scripting (Power Shell/Shell) for automation and health-check/reporting Observability / SRE: alert tuning, performance and capacity analysis; tools include Splunk/ELK and Grafana ITSM discipline:
Service Now / Jira; SLA / OLA adherence; clear incident communication and RCA Operations: daily/shift health checks, exception queues, dashboards, runbooks, KEDB Triage and recovery: application errors, data mismatches, API failures, safe reprocessing Change management: UAT, release notes, SOP/runbook updates; regression mindset RCA & systemic improvements: resolve repeat failures, drive optimization, and process improvements Desirable Skills / Knowledge / Experience Retail domain background

Experience with cloud-native .Net applications (Azure / AWS) Web services (SOAP / REST) and microservices architecture Automation mindset (Power Shell, Python) ITIL Foundation certification Familiarity with batch schedulers and cloud logging / monitoring