Senior .NET Developer

Senior.NET Developer

Phoenix, Arizona

Onsite

Full Time

$140k - $160k

Application Architect –.NET | Phoenix, AZ (Onsite)

A well-established professional services organization headquartered in Phoenix is hiring a full-time Application Architect to support continued growth and long-term technology modernization. This role sits within a newly formed technology group and works heavily with a Microsoft-based stack including .NET Core, C#, WinForms, SQL Server, and internal enterprise systems. This is a full-time, permanent position requiring five days onsite. This is a rare opportunity to step into an environment where the systems already run the business—but need thoughtful evolution, not a full rewrite. The organization is intentionally building a real technology strategy for the first time and is looking for someone who can balance pragmatism with modernization. The right person will immerse themselves in the current ecosystem, establish standards, mentor developers, and help leadership make informed technical decisions that align with business goals.

Required Skills & Experience

• 8+ years of professional software development experience
• Strong background in C# and .NET Core
• Experience architecting and maintaining enterprise applications
• WinForms or Windows desktop application experience
• Entity Framework experience in production environments
• SQL Server development and performance awareness
• Ability to clearly explain technical decisions to non-technical stakeholders
• Experience maintaining and improving existing systems (not greenfield-only)

Desired Skills & Experience

• Experience with OAuth or Identity Server implementations
• SSRS or reporting platform experience
• Document generation or document automation experience
• Exposure to AI-assisted development tools (Claude, Copilot, similar)
• Background in legal, mortgage, or financial services environments
• Agile or iterative development experience

What You Will Be Doing

• Maintaining and evolving a large, business-critical application ecosystem
• Defining application architecture standards and best practices
• Partnering with leadership on technology roadmap decisions
• Mentoring developers and providing technical guidance
• Identifying opportunities to decouple, modernize, and reduce risk
• Experimenting with new tools and approaches that improve delivery speed

Tech Breakdown

• 35%.NET / C# Application Development
• 25% WinForms / Desktop Application Work
• 15% SQL Server / Data Layer
• 10% Entity Framework / ORM & Data Access Patterns
• 5% Authentication & Identity (OAuth / Identity Server)
• 5% Reporting & Document Generation (SSRS + SQL-driven docs)
• 5% AI-Assisted Development (Claude, Copilot, experimentation)

Daily Responsibilities

• 50% Hands-on development and architectural work
• 30% Strategic planning and technical leadership
• 20% Team collaboration and mentorship

The Offer

• Base salary range: $140,000–$160,000
• Up to $180,000 for candidates with strong AI implementation experience

Benefits

• Medical, Dental, Vision insurance
• Paid time off and holidays
• Retirement plan options
• Long-term stability in a recession-resistant business

Applicants must be currently authorized to work in the U.S. on a full-time basis now and in the future.

Specialization:.Net