Demo

Senior .NET Application Developer

Computer Task Group, Inc
Lisle, IL Full Time
POSTED ON 8/13/2026
AVAILABLE BEFORE 9/13/2026
CTG is seeking to fill a Senior .NET Application Developer position for our client in Lisle, IL.

Location: Lisle, IL

Duration: 12 months

Hybrid role: 4 days in office

Required Skills:
  • 10 years of professional software development experience, preferably with significant hands-on experience in the Microsoft technology stack.
  • Strong experience with C#, .NET Framework, ASP.NET, ASP.NET Core, MVC, Web API, ADO.NET, Entity Framework, WCF, and related technologies.
  • Experience developing and supporting N-tier, client/server, web-based, and service-oriented applications.
  • Strong database development skills with SQL Server, including query optimization, stored procedures, triggers, and performance tuning.
  • Experience with front-end development using HTML5, CSS, Bootstrap, JavaScript, jQuery, Angular, React, JSON, and AJAX.
  • Working knowledge of object-oriented programming principles, SOLID principles, design patterns, and clean coding practices.
  • Experience with source control, DevOps, and delivery tools such as Azure DevOps, GitHub, TFS, Visual Studio, VS Code, Postman, and SoapUI.
  • Ability to create technical design documents, use cases, test cases, deployment documentation, and user-facing documentation.
  • Strong analytical, troubleshooting, communication, and stakeholder-management skills

Excellent verbal and written English communication skills and the ability to interact professionally with a diverse group are required.

CTG does not accept unsolicited resumes from headhunters, recruitment agencies, or fee based recruitment services for this role.

To Apply:

To be considered, please apply directly to this requisition using the link providedKindly forward this to any other interested parties. Thank you!

The expected base salary for this position ranges from $65 to $70 hourly. Salary offers are based on a wide range of factors including relevant skills, training, experience, education, market factors, and where applicable, licensure or certifications obtained. In addition to salary, a competitive benefit package is also offered.

About CTG

CTG, a Cegeka company, delivers IT and business solutions that enhance clients' digital agility, empowering them to seize new opportunities and overcome any challenge. Backed by more than 60 years' experience and a commitment to being a reliable, results-driven partner, we work shoulder to shoulder with clients to shape digital together. Our vision is to be an indispensable partner to our clients and the preferred career destination for digital and technology experts. With more than 9,000 team members in over 15 countries, we combine global expertise with local insight to deliver innovative solutions. We operate across the Americas, Europe, and India, working with over 3,000 clients in many of today's highest-growth industries.

Together, we shape what's next-working shoulder to shoulder to deliver impactful solutions for our clients and society. Our culture is built by the people who work at CTG, the values we hold, and the actions we take. It's a living, breathing thing that is renewed every day through the ways we engage with each other, our clients, and our communities. At CTG, you'll find a workplace where you are encouraged to grow, supported in your ambitions, and empowered to shape your own career journey. For more information, visit ;br>
CTG will consider for employment all qualified applicants including those with criminal histories in a manner consistent with the requirements of all applicable local, state, and federal laws.

CTG is an Equal Opportunity Employer. CTG will assure equal opportunity and consideration to all applicants and employees in recruitment, selection, placement, training, benefits, compensation, promotion, transfer, and release of individuals without regard to race, creed, religion, color, national origin, sex, sexual orientation, gender identity and gender expression, age, disability, marital or veteran status, citizenship status, or any other discriminatory factors as required by law. CTG is fully committed to promoting employment opportunities for members of protected classes.

Salary : $65 - $70

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