Lead .NET Developer

🛠️ Are you the kind of engineer who doesn’t just build features, but rethinks systems?

We are looking for a Lead Software Developer (.NET/React), someone who can lead technical direction, modernize legacy systems, elevate team performance, and thoughtfully introduce AI into real-world business workflows.

This is a high-impact leadership opportunity within an established U.S.-based financial/professional services organization that has spent over 30 years delivering financial audit and cost-recovery solutions to Fortune 500 clients.

💻 Who You Are:

• A senior full-stack engineer with demonstrated leadership experience
• Someone who has modernized legacy systems and understands architectural trade-offs
• Comfortable rolling up your sleeves while guiding technical direction
• Experienced in leading distributed teams
• Passionate about AI and its practical application in workflow automation and data-driven systems
• Confident enough to challenge status quo decisions and introduce forward-thinking solutions
• Equally strong in strategy discussions and deep technical implementation

📍 Work Type:

• Location: Ontario (Remote)
• Vacancy Type: This role is a newly created position

Requirements:
🎯 What You’ll Do:

• Lead the architectural evolution of a large, shared .NET codebase toward scalable, cloud-native, multi-tenant solutions
• Design and implement AI-enhanced features using Azure AI Services, OpenAI APIs, or equivalent frameworks to automate workflows and improve data analysis
• Oversee full-stack development across React front-end and .NET backend services
• Modernize legacy desktop and monolithic systems into service-oriented architectures
• Improve release velocity, deployment discipline, and engineering throughput
• Establish architectural standards for scalability, security, and maintainability
• Guide the team through best practices in CI/CD, branching strategy, and Azure DevOps pipelines
• Collaborate closely with product leadership to translate business use cases into robust technical solutions
• Mentor developers and elevate overall engineering maturity
• Introduce structured code review practices and enforce quality standards
• Support production stability through performance tuning and system optimization
• Champion AI adoption, not just in products, but in internal engineering productivity

⭐ What We’re Looking For:

• A minimum of 7 years of progressive experience in full-stack software development within enterprise or complex business environments
• Demonstrated experience serving as a Lead Software Engineer, Principal Engineer, or Technical Lead with responsibility for architectural direction and delivery oversight
• Deep technical expertise in the Microsoft technology stack, including C#, .NET (ASP.NET Core), and modern front-end frameworks such as React.js
• Strong experience designing and implementing RESTful APIs and service-oriented architectures within scalable, distributed systems
• Proven hands-on experience with Microsoft Azure, including cloud-native application design, App Services, Functions, containerization, and CI/CD pipelines using Azure DevOps
• Practical experience integrating AI/ML services into production-grade applications (e.g., Azure AI Services, OpenAI APIs, or comparable platforms)
• Demonstrated success modernizing legacy or monolithic systems into scalable, maintainable, and modular architectures
• Advanced knowledge of SQL Server, including data modeling, performance tuning, and managing high-volume or complex datasets
• Experience leading or mentoring distributed development teams, including offshore and cross-functional contributors
• Strong understanding of enterprise security, identity management, authentication/authorization frameworks, and multi-tenant system design principles
• Excellent communication, leadership, and stakeholder engagement skills, with the ability to influence technical direction and drive engineering excellence.

🔥 What Makes This Role Exciting

• True Technical Ownership: Direct access to IT leadership with influence over architectural direction
• AI-First Innovation: Opportunity to embed AI into real enterprise workflows
• Transformation Stage: Shape the next generation of a 30-year-established organization
• High Visibility: Your work directly impacts enterprise clients and internal growth

Benefits:
• Base Salary: $140,000 – $170,000
• Paid Time Off: Competitive vacation and personal days to maintain a healthy work-life balance
• Comprehensive Health Benefits: Medical, dental, and vision benefits to support your overall well-being
• Bonus eligibility
• Flexible work arrangements

📩 Ready to Elevate Your Career? Apply Now!

At  STACK IT Recruitment, we connect top talent with standout opportunities. If you meet at least 70% of the qualifications, we encourage you to apply for it. We’d love to chat!

Know someone perfect for this role? Share this with your network, you might just help someone take the next big step in their career.

✨ We’re proud to support diversity and inclusion. Need accommodation during the hiring process? Just let us know; we are here to support you!

AI Use Disclosure:

STACK IT uses AI-enhanced tools to support initial candidate screening and interview note analysis. All assessments and hiring decisions remain human-led.