Full Stack .NET Developer

Description
Our client is seeking a Senior Full Stack .NET Developer to augment its software development team. This role will support both web and desktop applications, helping the team maintain existing systems while contributing to ongoing enhancements and smaller "grow" initiatives requested by internal stakeholders.
The ideal candidate is a strong Senior-level developer who is comfortable working across the full stack, adaptable to evolving technologies, and able to contribute quickly in a well-structured environment.
Key Responsibilities
Design, develop, and maintain full stack applications supporting the clients business operations
Work across web and desktop applications, including modern and legacy systems
Develop and enhance applications using C# and .NET (including .NET 8 and .NET 10)
Build and maintain user interfaces using HTML, CSS, and JavaScript
Support WPF-based desktop applications
Contribute to Blazor-based web applications (nice to have, not mandatory)
Develop and consume APIs to support application integrations
Collaborate with Senior developers, business analysts, and stakeholders to deliver high-quality solutions
Participate in code reviews and contribute to maintaining clean, maintainable, and secure code
Adapt quickly to changing priorities and support multiple concurrent initiatives
Skills
.Net 8, .Net 10, Sql, C#, Sql server, wpf, blazer, api
Top Skills Details
.Net 8,.Net 10,Sql,C#,Sql server,wpf
Additional Skills & Qualifications
Nice-to-Have Skills
Blazor (experience or strong foundational understanding)
API development and integration experience
Exposure to financial services, banking, or accounting systems
Experience working in government or regulated environments
UI automation or test automation experience (a plus, not required)
Experience Level
Expert Level
Job Type & Location
This is a Contract position based out of Denver, CO.
Pay and Benefits
The pay range for this position is $50.00 - $60.00/hr.
Eligibility requirements apply to some benefits and may depend on your job classification and length of employment. Benefits are subject to change and may be subject to specific elections, plan, or program terms. If eligible, the benefits available for this temporary role may include the following: Medical, dental & vision Critical Illness, Accident, and Hospital 401(k) Retirement Plan - Pre-tax and Roth post-tax contributions available Life Insurance (Voluntary Life & AD&D for the employee and dependents) Short and long-term disability Health Spending Account (HSA) Transportation benefits Employee Assistance Program Time Off/Leave (PTO, Vacation or Sick Leave)
Workplace Type
This is a fully remote position.
Application Deadline
This position is anticipated to close on Feb 27, 2026.
>About TEKsystems:
We're partners in transformation. We help clients activate ideas and solutions to take advantage of a new world of opportunity. We are a team of 80,000 strong, working with over 6,000 clients, including 80% of the Fortune 500, across North America, Europe and Asia. As an industry leader in Full-Stack Technology Services, Talent Services, and real-world application, we work with progressive leaders to drive change. That's the power of true partnership. TEKsystems is an Allegis Group company.

The company is an equal opportunity employer and will consider all applications without regards to race, sex, age, color, religion, national origin, veteran status, disability, sexual orientation, gender identity, genetic information or any characteristic protected by law.

About TEKsystems and TEKsystems Global Services

We're a leading provider of business and technology services. We accelerate business transformation for our customers. Our expertise in strategy, design, execution and operations unlocks business value through a range of solutions. We're a team of 80,000 strong, working with over 6,000 customers, including 80% of the Fortune 500 across North America, Europe and Asia, who partner with us for our scale, full-stack capabilities and speed. We're strategic thinkers, hands-on collaborators, helping customers capitalize on change and master the momentum of technology. We're building tomorrow by delivering business outcomes and making positive impacts in our global communities. TEKsystems and TEKsystems Global Services are Allegis Group companies. Learn more at TEKsystems.com.

The company is an equal opportunity employer and will consider all applications without regard to race, sex, age, color, religion, national origin, veteran status, disability, sexual orientation, gender identity, genetic information or any characteristic protected by law.