Senior .NET Software Engineer

OkWhen; Northern (KY); Hybrid; USD 120,000 - 150,000; Full time

Benefits offered by this job

Health Care Plan

Retirement Plan

Paid Time Off

Family Leave

Training & Development

Work From Home

Job summary

OkWhen is seeking a Senior .NET Software Engineer to own meaningful parts of our production platform for live, virtual, and hybrid events. You will design, build, and maintain backend services with C#/.NET and APIs, while also delivering Angular-based web interfaces and robust data models in SQL Server.

You will collaborate across product, operations, and event-production teams to resolve production issues, improve performance, and raise the bar on reliability and security.

Qualifications

• 7+ years of professional software development experience.
• Strong commercial experience with C#, .NET, and ASP.NET Core.
• Strong experience with Angular and TypeScript.
• Advanced working knowledge of SQL Server, database design, and query optimization.
• Production experience with .NET MAUI or Xamarin.
• Experience designing and consuming REST APIs.
• Experience with Git, CI/CD, debugging, and automated testing.
• Demonstrated ability to work independently in an existing codebase.
• Strong written and verbal communication.
• Comfortable owning outcomes, not just completing assigned tasks.

Responsibilities

• Design, build, test, deploy, and maintain production software.
• Develop backend services and APIs using C# and ASP.NET/.NET.
• Build and maintain web applications using Angular.
• Design, optimize, and troubleshoot SQL Server databases and queries.
• Maintain and extend mobile applications using .NET MAUI.
• Investigate and resolve production issues.
• Improve application reliability, performance, security, and observability.
• Write automated tests and maintain technical documentation.
• Participate in code reviews and establish engineering standards.
• Collaborate with product, operations, and event-production teams.
• Break ambiguous business problems into clear technical plans.
• Use AI-assisted development tools responsibly to improve speed without sacrificing quality.

Skills

C#

.NET

ASP.NET Core

Angular

TypeScript

SQL Server

REST APIs

Git

CI/CD

Automated testing

Independent work

Communication

Tools

Azure

AWS

MAUI

Xamarin

Job description

About OkWhen

OkWhen builds technology that powers live, virtual, and hybrid events. Our platform supports conference management, registration, payments, mobile apps, content libraries, webinars, LMS functionality, CEU tracking, sponsor management, and operational workflows.

We are hiring a Senior .NET Software Engineer to help us improve, maintain, and extend a production platform used to run complex events.

The Outcome We're Hiring For

You will own meaningful parts of our application and consistently deliver reliable software without requiring constant supervision. You will improve system performance, reduce technical debt, and turn operational problems into simple, maintainable products.

This is not a ticket-taking role. We need an engineer who can understand the existing system, make sound technical decisions, and follow work through from discovery to production.

Responsibilities

• Design, build, test, deploy, and maintain production software
• Develop backend services and APIs using C# and ASP.NET/.NET
• Build and maintain web applications using Angular
• Design, optimize, and troubleshoot SQL Server databases and queries
• Maintain and extend mobile applications using .NET MAUI
• Investigate and resolve production issues
• Improve application reliability, performance, security, and observability
• Write automated tests and maintain technical documentation
• Participate in code reviews and establish engineering standards
• Collaborate with product, operations, and event-production teams
• Break ambiguous business problems into clear technical plans
• Use AI-assisted development tools responsibly to improve speed without sacrificing quality

• 7+ years of professional software development experience
• Strong commercial experience with C#, .NET, and ASP.NET Core
• Strong experience with Angular and TypeScript
• Advanced working knowledge of SQL Server, database design, and query optimization
• Production experience with .NET MAUI or Xamarin
• Experience designing and consuming REST APIs
• Experience with Git, CI/CD, debugging, and automated testing
• Demonstrated ability to work independently in an existing codebase
• Strong written and verbal communication
• Comfortable owning outcomes, not just completing assigned tasks

Preferred Qualifications

• Experience with SaaS platforms
• Experience with event management, registration, payments, LMS, or communications systems
• Cloud experience with Azure or AWS
• Experience with distributed systems, queues, integrations, or real-time applications
• Experience modernizing legacy applications
• Experience mentoring other developers

• Health Care Plan (Medical, Dental & Vision)
• Retirement Plan (401k, IRA)
• Paid Time Off (Vacation, Sick & Public Holidays)
• Family Leave (Maternity, Paternity)
• Training & Development
• Work From Home