Lead .NET Developer

STACK IT Recruitment; United States; On-site; CAD 100,000 - 130,000; Full time

Benefits offered by this job

Competitive vacation and personal days

Comprehensive health benefits

Job summary

A leading recruitment firm in Canada seeks a Lead Software Developer (.NET/React) to lead technical direction and modernize legacy systems. The ideal candidate will have extensive experience in full-stack development, specifically within the Microsoft technology stack. Responsibilities include overseeing development across .NET and React, implementing AI-enhanced features, and mentoring distributed teams. This role offers a high-impact opportunity to shape enterprise workflows and enhance team performance.

Qualifications

• 7+ years of experience in full-stack software development.
• Experience as a Lead Software Engineer or Technical Lead.
• Deep expertise in Microsoft technology stack.

Responsibilities

• Lead architectural evolution of .NET codebase.
• Implement AI-enhanced features using Azure AI Services.
• Guide team on best practices for CI/CD.

Skills

Full-stack development

Leadership experience

AI application

Architectural trade-offs

Mentoring teams

Education

Bachelor’s degree in Computer Science or related field

Tools

Microsoft Azure

C#

.NET (ASP.NET Core)

React.js

SQL Server

Job description

🛠️ 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
• Vacancy Type: This role is a newly created position

🎯 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
• 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

📩 Ready to Elevate Your Career? Apply Now!

✨ 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.