Senior Application Support Engineer – L3 / .NET / SQL

Posted One Month Ago
Be an Early Applicant
Aguascalientes, MEX
In-Office
Senior level
Artificial Intelligence • Big Data • Information Technology • Software
The Role
Provide L3/BAU production support for web applications: troubleshoot incidents, debug .NET/C# code, perform root cause analysis, optimize SQL Server queries and SSRS reports, collaborate with development and infrastructure teams, manage deployments, and document support procedures.
Summary Generated by Built In

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 ideal 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.


Skills Required

  • 4-8 years of professional IT experience
  • 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
  • Troubleshooting and optimizing stored procedures, functions, triggers, views, and complex SQL queries
  • Strong experience with SSRS (SQL Server Reporting Services)
  • Experience troubleshooting/debugging applications using C#
  • Experience troubleshooting/debugging applications using ASP.NET
  • Experience with .NET Framework 4.0+ and .NET / .NET Core
  • Experience with JavaScript and jQuery
  • Ability to analyze 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 related field
  • Advanced English (B2+/C1) and availability to overlap with US working hours
  • 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
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The Company
139 Employees

What We Do

The company provides automation and process optimization, UX innovation, software designing and testing, big data, artificial intelligence, and machine learning. They are involved in the development of computer systems and IT consulting.

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