Senior .NET Architect - Hybrid, Secret Clearance

Improvix Technologies

Washington (District of Columbia)

Hybrid

USD 120,000 - 160,000

Full time

14 days+

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Benefits offered by this job

Competitive compensation and bonuses

401(k) with company match

Paid time off and holidays

Comprehensive benefits

Job summary

Improvix Technologies in Washington, DC is seeking a Senior .NET Developer to provide technical leadership and architectural direction for a federal program, blending hands-on coding with strategic design. You will own architecture across the .NET stack, mentor developers, and guide CI/CD, security, and data patterns while collaborating with government stakeholders to deliver scalable solutions.

This onsite/hybrid role requires active secret clearance and a track record delivering enterprise

Qualifications

5+ years of progressive experience in .NET development (C#, ASP.NET MVC, ASP.NET Core).
Demonstrated experience supporting architecture and technology selection decisions for enterprise applications.
Strong command of full stack architecture, including modern frontend frameworks (React or similar), RESTful API design, and service-oriented patterns.
Hands-on experience with Microsoft Power Platform — including Power Apps (canvas and/or model-driven), Power Automate, and Power BI — with the judgment to know when low-code is and isn't the right answer.
Experience leading SharePoint modernization or migration efforts, with familiarity across SharePoint Online and legacy SharePoint (2013 or newer).
Deep experience with MS SQL, Entity Framework, and database design for enterprise applications.
Proven experience establishing or maturing CI/CD pipelines and DevOps practices (GitHub Actions, Azure DevOps, or similar).
Experience participating in code reviews, setting coding standards, and mentoring development teams.
Strong understanding of application security concepts, Active Directory, and identity/access patterns in enterprise environments.
Familiarity with Microsoft 365 / Office suite — including SharePoint Online, Teams, Outlook, Excel, Word, and OneDrive — in a collaborative enterprise environment.
Excellent communication skills, with the ability to present technical recommendations to both engineering teams and non-technical stakeholders.
Ability to work onsite in a federal environment (occasional Saturday hours may be required for deployment activities).

Responsibilities

Support the technical architecture for full stack applications built on .NET (C#/ASP.NET Core) and modern web frameworks, defining patterns, standards, and best practices for the development team.
Evaluate, select, and recommend tools, frameworks, libraries, and platforms — weighing tradeoffs in scalability, maintainability, security, and total cost of ownership.
Actively participate in technical design reviews, establish coding standards, and oversee code review processes to ensure quality and consistency across the team.
Define and maintain technical roadmaps for application modernization, including migration of legacy SharePoint-backed systems to modern architectures.
Support architectural oversight for Microsoft Power Platform solutions — guiding when Power Apps (canvas and model‑driven), Power Automate, and Dataverse are the right fit versus custom development.
Support establishing data architecture and governance patterns for Microsoft Dataverse, including table design, relationships, business rules, and security role models.
Guide API strategy and integration architecture, including RESTful service design, authentication patterns, and integration with Microsoft 365, SharePoint, Teams, and external systems.
Mentor mid-level and junior developers, conducting knowledge transfer sessions and growing the technical capability of the team.
Partner with program leadership, government stakeholders, and technical leads to translate mission requirements into achievable technical solutions.
Help improve CI/CD pipelines, branching strategies, and release management practices to support frequent, reliable deployments.
Identify and remediate technical debt, performance bottlenecks, and security risks across the application portfolio.
Remain hands‑on as needed — prototyping solutions, unblocking developers, and contributing code to critical‑path items.
Work onsite with the team to support rapid collaboration and delivery.