Insomniac Design is a global digital agency headquartered in Washington D.C., with offices in London, Bucharest, and Chisinau. We’re an agile, determined, and innovative team organized by functional areas of expertise—Creative, Technology, Strategy, and Management. We specialize in human-centered design with a deep focus on design thinking and digital transformation.
The Senior .NET Developer will lead the charge on designing and building cutting-edge web applications for clients like BenefitHub, using C#, .NET, SQL Server, and Azure. You’ll architect scalable solutions, mentor juniors, and partner with DevOps and QA to optimize our development lifecycle and infrastructure.
Responsibilities:
- Develop advanced .NET solutions — APIs, microservices, and web portals with C#.
- Be able to work with SQL Databases — complex queries, indexing, and performance query optimization.
- Know how to interact with Azure infrastructure — e.g.deploy code to Azure App Services, Functions.
- Implement robust authentication (e.g., OAuth 2.0, JWT) and integrate with SSO systems.
- Mentor junior devs — guide code reviews, troubleshoot tough bugs, and share Azure/.NET expertise.
- Ensure compliance with security standards (e.g. SOC2) and maintain clear documentation.
- Dig into production issues—analyze logs, fix root causes, and prevent repeats.
- Stay ahead—evaluate new .NET features and Azure tools to keep us sharp.
Skills & Experience:
- Experience: 5+ years with C# and .NET—building web apps and enterprise solutions.
- Database: Deep SQL Server expertise—stored procedures, triggers, optimization.
- Cloud: Strong Azure experience—scaling apps, securing services, monitoring with Insights.
- Must-Have: Mastery of .NET Core, Entity Framework, and REST API design (e.g., Swagger).
- Must-Have: Proven skills in authentication flows (OAuth, SAML, JWT) and secure coding.
- Advantage: Experience with microservices, serverless Azure Functions, or front-end (React/Angular).
- Agile & Collaboration: Ability to lead devs, QA, and ops teams to streamline delivery.
- Advantage: Familiarity with CI/CD tools (Azure DevOps, Bitbucket Pipelines) or monitoring (Prometheus, Grafana).
- Education: Bachelor’s in Computer Science, Engineering, or equivalent experience.
Top Skills
What We Do
Insomniac Design is an award-winning digital creative agency founded in 1999, based in D.C.’s historic Blagden Alley. We’re an agile, nimble and innovative team organized by functional areas of expertise — Creative, Technology, Strategy, and Management. With offices in the U.S. and Europe, we’re a global team with diverse experience and cultural backgrounds who consistently strive for excellence. We specialize in human-centered design — with projects and work that includes complex web and mobile builds, digital transformation, branding, visual design, content, video and creative services.
We’ve worked in the areas of policy, advocacy, government, foundations, commercial brands, and more — with clients like Brand USA, UNICEF, The World Bank, World Health Organization, Amnesty International, BBC Worldwide, National Endowment for the Arts, Lufthansa Airlines, Adobe, and Google. Insomniac Design’s work has won numerous awards such as W3 Awards, Communicator Awards, and the AIB awards. Beyond the U.S., our work in Asia and Africa has been featured in news and media around the world.
