.NET / AWS Production Support Engineer – L3

3. .NET / AWS Production Support Engineer — Level 3 (L3)Location: Fort Mill, South CarolinaWork Arrangement: 100% Onsite — 5 days per weekPosition Type: ContractOpenings: 1Job Summaryseeking an experienced L3 Production Support Engineer with strong .NET and AWS expertise to support business-critical enterprise applications. The resource will investigate complex production incidents, perform root-cause analysis, resolve application and integration issues, improve system stability, and collaborate with development and infrastructure teams to prevent recurring incidents.Roles and ResponsibilitiesProvide Level 3 support for production applications built on .NET, C#, and related Microsoft technologies.Investigate complex incidents involving application failures, API errors, database issues, and cloud infrastructure dependencies.Perform root-cause analysis and implement permanent corrective and preventive actions.Analyze application logs, exception traces, monitoring alerts, performance metrics, and system behavior.Troubleshoot AWS-hosted application components and services, including EC2, Lambda, API Gateway, S3, IAM, and CloudWatch as applicable.Diagnose SQL query performance issues, connection failures, data inconsistencies, and database-related application errors.Support REST APIs, integrations, background jobs, scheduled processes, and asynchronous workflows.Monitor application availability, response times, error rates, and resource utilization.Coordinate incident response, escalation, change implementation, and release validation.Support deployments, rollback procedures, emergency fixes, and post-release verification.Develop scripts and automation to reduce repetitive support activities and improve operational efficiency.Create and maintain incident reports, runbooks, troubleshooting guides, and knowledge articles.Work with L1/L2 support, application developers, QA, DevOps, database administrators, and business stakeholders.Follow incident, problem, change, and release-management processes and applicable security controls.Required Technical SkillsStrong hands-on experience supporting C#/.NET applications in production.Practical troubleshooting experience with AWS-hosted applications.Experience analyzing logs, exceptions, API failures, and application performance issues.Working knowledge of SQL and database troubleshooting.Experience with application monitoring and alerting tools.Understanding of REST APIs, distributed applications, and integration troubleshooting. xzbcwsv Strong incident management, root-cause analysis, and problem-solving skills.

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