Job Description
3. .NET / AWS Production Support Engineer - Level 3 (L3)
Location: Fort Mill, South Carolina
Work Arrangement: 100% Onsite - 5 days per week
Position Type: Contract
Openings: 1
Job Summary
seeking 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 Responsibilities
- Provide 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 Skills
- Strong 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.
- Strong incident management, root-cause analysis, and problem-solving skills.