Senior Software Engineer: C#/NET & Angular Modernization

Tech Holding; United States; Remote; MXN 551,000 - 964,000; Full time

Job summary

Tech Holding is seeking a Senior Software Engineer with strong C#/.NET and Angular experience to build, integrate, and modernize software systems. The role requires hands-on work with SQL Server, REST APIs, TypeScript, and Node.js, and involves troubleshooting production issues while delivering reliable solutions in complex environments with limited documentation.

You will develop adapters, enable integrations, and incrementally replace legacy functionality to minimize disruption, while

Qualifications

• Strong hands-on experience with C# and .NET application development.
• Strong experience developing applications with Angular.
• Solid experience troubleshooting SQL Server, including queries, data access, and performance issues.
• Experience designing, developing, and integrating REST APIs.
• Proficiency with TypeScript and Node.js.
• Experience implementing automated tests and maintaining reliable software.
• Ability to navigate, troubleshoot, and safely modify complex production systems with limited documentation.
• Experience building adapters, integrations, or replacement components that allow legacy functionality to be modernized incrementally.

Responsibilities

• Develop, maintain, and enhance applications using C#/.NET and Angular
• Troubleshoot SQL Server queries, data access issues, and production performance problems
• Build and integrate REST APIs and system-to-system integrations
• Develop adapters and incremental replacement capabilities to modernize existing systems
• Work across TypeScript and Node.js codebases to support integrations and application functionality
• Implement automated tests to improve code quality, reliability, and maintainability
• Investigate and resolve issues in production systems with incomplete or outdated documentation
• Deliver incremental improvements while protecting existing functionality and minimizing operational risk
• Collaborate with engineering teams to understand existing systems, identify technical risks, and implement practical solutions

Skills

C#

.NET

Angular

SQL Server

REST APIs

TypeScript

Node.js

Automated tests

Production support

Job description

Tech Holding is seeking a Senior Software Engineer with strong C#/.NET and Angular experience to build, integrate, and modernize software systems. The role requires hands-on work with SQL Server, REST APIs, TypeScript, and Node.js, and involves troubleshooting production issues while delivering reliable solutions in complex environments with limited documentation.

You will develop adapters, enable integrations, and incrementally replace legacy functionality to minimize disruption, while