L3 Support Engineer Dot Net

7 Days Old

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
Advanced SQL troubleshooting and tuning; data-model fluency for application triage
REST API integration and debugging
Scripting (PowerShell/Shell) for automation and health-check/reporting
Observability / SRE: alert tuning, performance and capacity analysis; tools include Splunk/ELK and Grafana
ITSM discipline: ServiceNow / 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 (PowerShell, Python)
ITIL Foundation certification
Familiarity with batch schedulers and cloud logging / monitoring

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Location:
Livingston
Salary:
From £450 to £500 per day
Job Type:
FullTime
Category:
IT

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