LiftOff is a people-first product engineering company where teams build scalable, high-impact solutions for global clients. We value ownership, transparency, and collaboration—and we’re looking for talented engineers who want to build meaningful products while growing in a supportive environment.
We are looking for a skilled Senior .NET Developer with strong experience across both legacy and modern Microsoft technologies—from .NET Framework 4.x to the latest .NET / .NET Core versions. You will work on scalable backend systems, API integrations, and backend services that support web and mobile applications.
What You’ll Do
Develop and maintain applications using .NET Framework 4.x and .NET/.NET Core.
Build, integrate, and consume SOAP-based (WCF/ASMX) and RESTful APIs.
Design server-side logic, reusable components, and third-party integrations.
Work with MySQL Server for schema design, indexing, optimisation, and query tuning.
Deploy, configure, and manage applications on IIS.
Collaborate closely with frontend, backend, and mobile teams for full-stack delivery.
Troubleshoot production issues, debug, and improve system performance.
What You Bring
5+ years of hands-on experience in .NET development
Strong proficiency in:
C#, .NET Framework 4.x, .NET 5/6/7/8
ASP.NET MVC, Web API, .NET Core
Extensive experience building SOAP and REST APIs
Solid experience with MySQL Server
Hands-on experience deploying and managing apps via IIS(Internet Information Service)
Understanding of JWT, OAuth, caching, and session management
Experience integrating APIs with native or hybrid mobile applications
Familiarity with Git or SVN
Strong analytical and problem-solving skills; ability to work independently
Nice to Have
Experience with cloud platforms like Azure or AWS.
Support integrations for Android and iOS applications.