Full Stack Software Developer (C#/.NET)
Role Overview
Improvix Technologies seeks a senior .NET full-stack developer to provide technical leadership and architectural direction on a federal program.
The role owns architecture and tooling decisions across Microsoft and modern web applications while mentoring developers and ensuring delivery quality.
The position is listed as onsite/hybrid, with three days per week in Washington, DC; the description also calls for onsite team work.
Key Skills for This Role
Full Job Posting
Role overview
Improvix Technologies seeks a senior .NET full-stack developer to provide technical leadership and architectural direction on a federal program.
The role owns architecture and tooling decisions across Microsoft and modern web applications while mentoring developers and ensuring delivery quality.
The position is listed as onsite/hybrid, with three days per week in Washington, DC; the description also calls for onsite team work.
What you'll do
- Support architecture for .NET and modern web applications and establish development patterns and standards.
- Build interactive applications using React, ASP.NET Core, and Azure cloud services.
- Develop scalable automated test frameworks for web UIs and frontend components.
- Evaluate tools and platforms for scalability, maintainability, security, and cost.
- Lead design reviews, coding standards, and code review processes.
- Guide modernization roadmaps and migration from legacy SharePoint systems.
- Guide Power Platform and Dataverse solution, data architecture, governance, and security patterns.
- Define API and integration approaches across Microsoft 365, SharePoint, Teams, and external systems.
- Mentor developers and conduct knowledge transfer.
- Translate mission needs into solutions with program and government stakeholders.
- Improve CI/CD, branching, and release management; address technical debt, performance, and security risks.
- Work hands-on as needed, including prototyping and contributing code.
Required qualifications
- At least 5 years of progressive .NET development experience, including C#, ASP.NET MVC/Core, React.js, and one or more of xUnit, Playwright, Cypress, or Selenium.
- Hands-on experience with agentic development lifecycle practices and AI tools.
- Hands-on cloud services experience supporting web application deployment and management.
- Active Secret clearance.
- Enterprise application architecture and technology selection experience.
- Full-stack architecture knowledge including frontend frameworks, RESTful APIs, and service-oriented patterns.
- Microsoft Power Platform experience including Power Apps, Power Automate, and Power BI.
- SharePoint modernization or migration experience and familiarity with SharePoint Online and SharePoint 2013 or newer.
- Deep MS SQL, Entity Framework, and enterprise database design experience.
- Experience with CI/CD and DevOps practices, code reviews, coding standards, and mentoring.
- Application security, Active Directory, and enterprise identity/access knowledge.
- Strong communication skills and ability to work onsite in a federal environment; occasional Saturday deployment hours may be required.
Preferred qualifications
- Azure architecture experience, including federal or FedRAMP deployments.
- Dataverse for Teams, Power Apps in Teams, TypeScript, or Node.js experience.
- Exposure to Docker or Kubernetes.
- Experience integrating AI/LLM capabilities or AI-assisted developer tools into team workflows.
- Understanding of Section 508 accessibility standards.
- Federal program experience and relevant Azure or Power Platform architecture certifications.
Work arrangement
- The posting describes the role as onsite/hybrid, with three days per week in Washington, DC.
- The responsibilities also state that the developer will work onsite with the team.
Compensation
- The listed salary range is USD 170,000–190,000 per year.
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