You'll need to work in a team environment creating and supporting an enterprise-grade solution.

• Designing new functionality and participating in requirements analysis.
• Working with the team to produce software design and architecture.
• Delivering a high-quality application.
• Ensuring a required level of performance.
• Writing test-backed server-side code.
• Supporting and fixing existing functionality.
• Selecting and using the most appropriate and efficient technologies for a particular application.
• Designing and building application layers.
• Write clean, scalable code using .NET programming languages
• Test and deploy applications and systems.
• Revise, update, refactor and debug code.
• Improve existing software.
• Develop documentation throughout the software development lifecycle (SDLC).
• Serve as an expert on applications and provide technical support.
• Experience in developing  (ASP.NET MVC) applications.
• Knowledge of Entity Framework  ADO.NET.
• Proficient knowledge in MSSQL.
• REST Web API and Web Services and its integration with different applications.
• Database design including indexes and data integrity.
• Implementing enterprise application patterns.
• Understanding of HTML, JS, and CSS.
• Familiarity with the client-side framework jQuery.
• Knowledge of best security practices.
• Knowledge of OOP and design patterns.

If you have worked/integrated with Zapier in the past, that will be a huge advantage for you.