Remote Senior Identity & ASP.NET Engineer

Duende Software, Inc.; United States; Remote; USD 120,000 - 180,000; Full time

Job summary

Duende Software, Inc. is seeking a Senior Customer Success Engineer to provide deep-technical, developer-facing support for .NET identities and IdentityServer. This remote role targets Europe or US East Coast hours, working closely with Product, Engineering, and Sales to resolve complex code-level issues.

You’ll guide onboarding, architect secure identity solutions, and help customers maximize product value while shaping engineering and content with feedback from the field.

Qualifications

• Deep .NET expertise including ASP.NET Core and its auth components.
• Hands-on IdentityServer experience and knowledge of OAuth2 / OIDC.
• Familiarity with Azure, AWS, Google Cloud Platform.
• Nice-to-haves: SPA experience, SAML, WS-Fed.
• Ability to communicate complex technical concepts clearly.
• Customer-focused with problem-solving mindset.

Responsibilities

• Own and resolve high-priority technical support tickets for enterprise clients.
• Lead technical onboarding and architect secure .NET identity solutions.
• Bridge feedback between developers and Duende's core product team.
• Contribute to public docs, samples, and knowledge base content.
• Grow accounts by identifying technical opportunities and upsell angles.

Skills

NET expertise

ASP.NET Core

IdentityServer

OAuth2 / OpenID Connect

Cloud platforms

Technical communication

Job description

Duende Software, Inc. is seeking a Senior Customer Success Engineer to provide deep-technical, developer-facing support for .NET identities and IdentityServer. This remote role targets Europe or US East Coast hours, working closely with Product, Engineering, and Sales to resolve complex code-level issues.

You’ll guide onboarding, architect secure identity solutions, and help customers maximize product value while shaping engineering and content with feedback from the field.