Senior Full-Stack Bug Fix & Technical TroubleshootingReynaldo Hernandez
I diagnose and fix complex software issues across frontend, backend, APIs, databases, servers, and integrations.
This service is ideal for bugs, broken features, API failures, SQL issues, deployment problems, integration errors, browser extension bugs, and production incidents that need a senior developer to identify the root cause and deliver a practical fix.
I work across .NET, C#, JavaScript, SQL Server, REST APIs, IIS, Azure, Firebase, Flutter, browser extensions, and enterprise systems.
What you get:
Root-cause analysis
Code or configuration fix when possible
Clear explanation of what failed
Validation of the solution
Recommended next steps if additional work is required
To start, send the error, screenshots, logs, relevant code or repository access, and a short description of the expected behavior.
Starting at$50
Duration3 days
Tags
Azure
C#
Full-Stack Development
JavaScript
.NET
SQL
API Development
Backend Engineer
Debugging
Service provided by
Reynaldo Hernandez Managua, Nicaragua
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- Rating
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Senior Full-Stack Bug Fix & Technical TroubleshootingReynaldo Hernandez
Starting at$50
Duration3 days
Tags
Azure
C#
Full-Stack Development
JavaScript
.NET
SQL
API Development
Backend Engineer
Debugging
I diagnose and fix complex software issues across frontend, backend, APIs, databases, servers, and integrations.
This service is ideal for bugs, broken features, API failures, SQL issues, deployment problems, integration errors, browser extension bugs, and production incidents that need a senior developer to identify the root cause and deliver a practical fix.
I work across .NET, C#, JavaScript, SQL Server, REST APIs, IIS, Azure, Firebase, Flutter, browser extensions, and enterprise systems.
What you get:
Root-cause analysis
Code or configuration fix when possible
Clear explanation of what failed
Validation of the solution
Recommended next steps if additional work is required
To start, send the error, screenshots, logs, relevant code or repository access, and a short description of the expected behavior.
$50