We are looking for a Senior Application Support Engineer with strong experience providing L3 and BAU support for production web applications.

This is an application support-focused position rather than a traditional software development role. The idóneo candidate is highly skilled in troubleshooting complex production issues, working with SQL Server, analyzing application behavior, performing root cause analysis, and debugging .NET/C# applications when required.

You will collaborate with US-based development, infrastructure, and business teams, so advanced English and availability to overlap with US working hours are required.

What You'll Do

- Provide L3 and BAU production support for web-based applications.
- Own complex incidents and application issues through resolution.
- Troubleshoot application errors, bugs, performance issues, and production incidents.
- Perform root cause analysis (RCA) and implement preventive solutions for recurring issues.
- Work extensively with Microsoft SQL Server to investigate and resolve application and data-related problems.
- Analyze and troubleshoot stored procedures, functions, triggers, views, and queries.
- Debug existing applications built with C#, ASP.NET, .NET Framework and .NET Core.
- Implement or collaborate on bug fixes when necessary.
- Support and troubleshoot SSRS reports and SQL-based reporting processes.
- Monitor application performance and identify optimization opportunities.
- Collaborate with development and infrastructure teams on complex technical incidents.
- Participate in application updates, patches, testing, and deployments.




- Document troubleshooting procedures, solutions, SOPs, and application support processes.
- Communicate incident status and resolutions effectively to technical and business stakeholders.

Requisitos

- 4–8 years of professional IT experience.
- Strong hands-on experience in L3 Application Support / Production Support / BAU Support.
- Proven experience supporting web-based applications in production environments.
- Advanced knowledge of Microsoft SQL Server and SQL querying.
- Hands-on experience troubleshooting and optimizing:
- Stored Procedures

- Functions

- Triggers

- Views

- Complex SQL queries

- Strong experience with SSRS (SQL Server Reporting Services).
- Experience troubleshooting/debugging applications using:

- C#
- ASP.NET
- .NET Framework 4.0+
- .NET / .NET Core

- JavaScript
- jQuery

- Ability to analyze existing application code and perform or support debugging and bug fixes.
- Experience with source control tools such as Git/GitHub.
- Strong troubleshooting, analytical, and root cause analysis skills.
- Bachelor's degree in Computer Science, Information Technology, Software Engineering, or a related field.
- Advanced English (B2+/C1) – ability to communicate effectively with US-based technical and business teams.
- Availability to overlap with US working hours.

Nice to Have

- Experience with Power BI.
- Experience with Sigma Computing.
- Experience supporting applications hosted in Microsoft Azure.
- Knowledge of ITIL frameworks and application support best practices.
- Experience with application monitoring and performance optimization.

📌 Senior Application Support Engineer –/ .NET / SQL (Estado de México)
🏢 Softgic
📍 Estado de México