Senior .NET Web Apps Engineer (React/SQL)

Quantum Technologies. LLC; Lisle (IL); Sur place; USD 110 000 - 140 000; Plein temps

Résumé du poste

Quantum Technologies. LLC in Lisle, IL seeks a hands-on Senior .NET Application Developer with 5–8 years of experience to support and enhance enterprise console and web applications.

The role combines application maintenance, technical enhancements, production support, release management, application hosting, certificate management, database support, and customer collaboration. The developer will work closely with technical leads, technical managers, other developers, L1 support teams, Customer

Qualifications

• 5–8 years of software development, maintenance, and production support.
• Strong hands-on experience with React, C#, MVC, .NET Core, Web APIs, and SQL Server.
• Independently set up, configure, deploy, and troubleshoot React, MVC, .NET Core, and Web API applications.
• Experience with code-level debugging, root-cause analysis, and resolution of complex issues.
• Experience testing and troubleshooting REST APIs using Postman.

Responsabilités

• Maintain, troubleshoot, and enhance applications using React, C#, MVC, .NET Core, Web APIs, and SQL Server, with occasional support for an Angular-based application.
• Independently set up, configure, deploy, and troubleshoot React, MVC, .NET Core, and Web API applications across Development, QA, and Production environments.
• Support the configuration and troubleshooting of the existing Angular application as required.
• Perform code-level debugging and root-cause analysis for application, API, database, configuration, IIS, and deployment issues, and implement fixes.
• Implement application fixes, technical improvements, performance enhancements, integrations, and customer-requested changes.
• Collaborate with customers to understand requirements, investigate issues, recommend solutions, and provide timely technical updates.
• Work with leads and other developers on maintenance, enhancements, code reviews, and production-support activities.
• Review Azure DevOps pull requests and perform code merges, tagging, builds, and deployments.
• Create and manage Azure DevOps user stories, tasks, bugs, and support work items.
• Perform releases across Development, QA, and Production environments.
• Configure IIS, host web applications, and manage app pools, bindings, certificates, and server configurations.
• Set up batch jobs and manage configuration changes across environments.
• Renew and install SSL/TLS and server certificates, and support SSO configurations in Azure/Windows Server.
• Prepare database deployment, validation, and rollback scripts, and coordinate backups.
• Analyze, troubleshoot, and optimize SQL queries and stored procedures.
• Create production change tickets and participate in release meetings, deployments, validation, and post-release monitoring.
• Participate in high-severity incident calls and assist with troubleshooting, mitigation, and service restoration.
• Analyze application, server, database, and batch-job logs.
• Provide on-call and after-hours production support when required.
• Create ad hoc reports based on customer and business requirements.

Connaissances

React

C#

MVC

.NET Core

Web APIs

SQL Server

REST APIs

Postman

JSON

XML

Azure DevOps

IIS

Windows Server

Debugging

Formation

Bachelor’s degree in computer science, information technology, or related field

Outils

Azure DevOps

IIS

Windows Server

SQL Server deployments

Db2

Hadoop

SolarWinds

ServiceNow

X-Matters

GitHub Copilot

Description du poste

Quantum Technologies. LLC in Lisle, IL seeks a hands-on Senior .NET Application Developer with 5–8 years of experience to support and enhance enterprise console and web applications.

The role combines application maintenance, technical enhancements, production support, release management, application hosting, certificate management, database support, and customer collaboration. The developer will work closely with technical leads, technical managers, other developers, L1 support teams, Customer