Full Stack .NET Developer at Bidadoo Inc – Kent, Washington

bidadoo is the largest and most trusted online auction service on eBay for the sale of heavy equipment, trucks, and industrial assets. Our growing, high-impact IT team builds and maintains the custom software that powers the business.

The Role & Opportunity

We are hiring a Full Stack .NET Developer for a hands-on, execution-focused role. You will build new features and modernize existing systems on .NET 10. Beyond managing the backlog, this position offers high autonomy to shape our engineering program. You will have the opportunity to expand testing & review cultures, mature CI/CD pipelines, and define branching strategies.

What You’ll Do

• Build & Ship: Design, develop, test, and deploy full stack .NET applications. You will work with ASP.NET Core, C#, and .NET 10.
• Legacy Maintenance: Support existing C#/VB.NET/ASP.NET applications while contributing to modernization efforts.
• Cloud & Integrations: Build & maintain Azure cloud infrastructure. You will also support AWS resources and third-party integrations.
• Improve & Mature: Help define and implement engineering best practices.
• Automation: Expand automated testing. You will also improve CI/CD pipelines in Azure DevOps.

What We’re Looking For

• Experience: 4+ years of professional full stack.NET development experience. Degree in Computer Science, Software Engineering, or a related field — or equivalent professional experience
• Core Tech: Proficiency with C#, ASP.NET Core / MVC, and Web API.
• Data & UI: Strong SQL skills. You must also have solid front-end skills with HTML, CSS, and JavaScript/TypeScript.
• Cloud/DevOps: Experience with Microsoft Azure services. You should be comfortable working in Azure DevOps or similar CI/CD environments.
• Mindset: Self-directed and able to work autonomously. You should have a mindset for continuous improvement.

Bonus Points

• Experience with AI-assisted development tools.
• AWS experience.
• Exposure to eBay or marketplace APIs, as well as Salesforce.
• Familiarity with legacy VB.NET applications.

Why Join Us

• Broad Exposure: Gain technical exposure across cloud infrastructure, integrations, and databases rather than being siloed.
• Modern Tools: We use AI-forward tooling and invest in AI-assisted development as a core workflow.
• Professional Development: annual budget for industry certifications and continuing education, plus dedicated on-the-job study time.
• Benefits: We offer health, dental, and vision insurance. We also provide a 401(k) with a company match.