NET Application Support Engineer

TransCore, LP
Ashburn, United States of America
7 days ago

Role details

Contract type
Permanent contract
Employment type
Full-time (> 32 hours)
Working hours
Regular working hours
Languages
English
Experience level
Intermediate

Job location

Ashburn, United States of America

Tech stack

.NET
API
Amazon Web Services (AWS)
ASP.NET
JIRA
Azure
C Sharp (Programming Language)
Cloud Computing
Configuration Management
Databases
Continuous Integration
Software Debugging
Disaster Recovery
Github
Web Servers
IIS
Issue Tracking Systems
Log4j
Microsoft Software
Microsoft SQL Server
Parsing
Powershell
Application Data
Software Deployment
Software Engineering
SQL Stored Procedures
T-SQL
SSL Certificate Management
Diagnostic Tools
Scripting (Bash/Python/Go/Ruby)
Enterprise Software Applications
.NET Core
Software Application Programming
Indexer
Containerization
Deployment Automation
Windows Services
Event Viewer
Docker
Jenkins
Web Api

Job description

We are seeking a skilled and solutions-oriented .NET Application Support Engineer to ensure the stability, reliability, and performance of our enterprise applications built on the Microsoft stack. In this role, you will bridge the gap between software development and systems operations. You won't just be waiting for tickets; you will actively dive into existing C#/.NET codebases to diagnose failures, manage and tune IIS web server environments, and write robust automation scripts to eliminate repetitive manual tasks., * Incident Management & Troubleshooting: Own L2/L3 technical support for high-availability .NET applications, APIs, and Windows Services. Diagnose runtime errors, application crashes, and performance bottlenecks.

  • Code-Level Debugging: Analyze and debug C# source code to identify defects, trace execution flows, and deliver root-cause analysis (RCA) to the core development teams.
  • Environment & Infrastructure Setup: Configure, maintain, and optimize IIS (Internet Information Services) web servers, application pools, and environment variables across staging and production servers.
  • Scripting & Automation: Develop and maintain a library of PowerShell scripts to automate routine operations, application deployments, system health checks, and data fixes.
  • Database Maintenance: Troubleshoot application data faults by writing and optimizing complex T-SQL queries, analyzing stored procedures, and resolving SQL Server bottlenecks.
  • Monitoring & Documentation: Proactively monitor application health logs (Event Viewer, Azure Monitor, or similar) and maintain detailed technical documentation for known errors, environment configurations, and recovery procedures.

Requirements

The ideal candidate possesses a "systems thinker" mindset-someone who enjoys the puzzle of root-cause analysis and loves using scripting to automate deployments and infrastructure setups., * The .NET Ecosystem: 3+ years of experience supporting or developing applications using .NET Core, .NET Framework (4.x+), ASP.NET MVC, and Web API.

  • Scripting: Strong proficiency in PowerShell (preferred) for systems automation and configuration management.
  • Web Servers: Solid understanding of IIS architecture, including site bindings, SSL certificate management, and app pool optimization.
  • Databases: Proficient with Microsoft SQL Server, including writing T-SQL queries, joins, and understanding database indexing.
  • Diagnostic Tools: Experience utilizing windows diagnostic utilities, Event Viewer, log parsers (Serilog/Log4Net), or APM tools to isolate infrastructure vs. code issues.

Preferred Qualifications:

  • Three to five years of previous experience.
  • Experience with cloud infrastructure platforms (Azure, Google, AWS).
  • Familiarity with containerization tools like Docker.
  • Experience working with CI/CD tools (Azure DevOps, Jenkins, or GitHub Actions).
  • Experience with ticketing systems like Jira.

Education: Bachelor's degree from an accredited educational institution or equivalent combination of education and experience.

Soft Skills Desired:

  • The "Detective" Mindset: A persistent, systematic approach to troubleshooting rather than guessing or applying superficial fixes.
  • Strong Communicator: Ability to clearly explain complex technical issues to both non-technical stakeholders and core software developers.
  • Autonomy: Comfortable balancing multiple shifting priorities in a fast-paced production environment.

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