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Full-stack.NET Developer - Team Lead; Onsite - Aurora, IL

Job in Aurora, Kane County, Illinois, 60505, USA
Listing for: QT9 Software, Inc.
Full Time position
Listed on 2025-12-29
Job specializations:
  • Software Development
    Software Engineer, C# / Unity Developer
Salary/Wage Range or Industry Benchmark: 80000 - 100000 USD Yearly USD 80000.00 100000.00 YEAR
Job Description & How to Apply Below
Position: Full-stack.NET Developer - Team Lead (Onsite - Aurora, IL)

About the Company

QT9 Software is a fast-growing SaaS software provider for Quality Management and ERP software solutions. We believe in investing in our employees by providing a culture that fosters growth, hard work, and fun. We have several employee outings per year to ensure our “family” feel and high level of team engagement. Not only is our company great for employee environment, it’s great for our customers, too!

We save our customers thousands of dollars per year and enjoy a 94% customer retention rate.

Advantages of working at QT9 Software
  • Strong culture where people are our most valuable asset
  • Prime location near Chicago Premium Outlets
  • Modern industrial warehouse built in 2019 with 24 ft. ceilings
  • Cool amenities from Golf Simulator, Sport Court and Arcade games
  • Growing team with a small company feel
  • Provide you with support you need to succeed in your role
Competitive compensation package with great benefits

Medical (Blue Cross Blue Shield), Dental, Vision, Life, Disability, FSA, 401(k)…even unlimited PTO!

Job Summary

Due to promotion, we have an opening for Full-stack .NET Developer Team Lead on our Enterprise Resource Planning (ERP) team! The person in this role guides their team through assigning tasks, conducting code reviews, and setting coding standards for complex projects. Collaborating closely with other Developer Leads, Product Management, Quality Control, and IT, this individual aligns product features with business goals, ensures quality releases, supports infrastructure needs, and mentors developers to become key contributors.

This role is part of QT9’s Leadership Team.

Employment eligibility :
Applicants must be authorized to work for any U.S. employer. We are unable to sponsor or take over sponsorship of employment Visas.

Duties
  • Design, develop, and maintain .NET applications using C#, ASP.NET, MVC / Web Forms, .NET Core, Web API, and SQL Server.
  • Write clean, maintainable code following best practices and coding standards.
  • Perform unit testing and debugging to ensure software quality and reliability.
  • Assign development tickets to product team
  • Code reviews of team enforcing global QT9 Software coding standards
  • Difficult development projects setting product on correct trajectory and allowing for members of development team to follow lead’s coding standard for complex development
  • Manage builds for major, minor, and bug fix releases to customers on product
  • Assist developers on team and coach team to “level up” to major contributors
  • Interface with product manager on direction of business rules and features needed in product
  • Interface with QC team on quality control / validation process
  • Assist in launching new sites for validation, development, and customer needs
  • Work with IT team on design practices to match infrastructure changes, troubleshooting live production sites as they may affect infrastructure, permissions and needs for lead as well as customers and IT team on web infrastructure.
Requirements
  • Bachelor's degree in Computer Science, Engineering, or related field.
  • 7+ years of experience in .NET development.
  • 1- 3 years in leadership roles.
  • 1.5+ years of ERP development experience.
  • Proficiency in C#, ASP.NET MVC / WEB FORMS, .NET Core, and SQL Server.
  • Strong understanding of object-oriented programming principles.
  • Excellent problem-solving and analytical skills.
  • Ability to work effectively in a fast-paced environment.

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