Senior .NET Architect

Location: Chicago, IL (Onsite)
Employment Type: Full-Time / Contract / Contract-to-Hire
Visa requirement: Only GC / USC
Experience: 18+ years

We are seeking a highly experienced Senior .NET Architect to lead the end-to-end architecture and technical direction of enterprise web applications. This role requires deep hands-on expertise in the .NET ecosystem
, cloud-native architectures, application modernization, and microservices. The architect will work onsite in Chicago
, closely collaborating with client stakeholders and offshore development teams to deliver scalable, secure, and high-performance solutions, primarily within the legal domain
.

The Senior .NET Architect will own the overall technical architecture of the project, ensuring robust, scalable, and future-ready solutions. The role demands hands-on technical leadership, strong client-facing skills, and the ability to guide distributed teams while enforcing architectural governance, best practices, and delivery excellence.

• Lead architectural design and development of enterprise-scale .NET applications
  , ensuring scalability, performance, and security.
• Design and implement cloud architectures using Microsoft Azure (App Services, Functions, Azure SQL, AKS).
• Drive application modernization
  , legacy transformation, and cloud adoption initiatives.
• Architect and govern microservices-based solutions
  , ensuring modularity, reusability, and maintainability.
• Oversee the design and implementation of RESTful APIs
  , enforcing consistency and best practices.
• Define and enforce architectural standards
  , coding guidelines, and security protocols.
• Provide technical leadership, mentorship, and guidance to development teams.
• Collaborate closely with product owners, business analysts, UX/UI teams, and client stakeholders to translate business requirements into technical solutions.
• Conduct code reviews
  , design reviews, and architecture governance checkpoints.
• Optimize application performance using caching strategies, database indexing, and code optimization.
• Stay current with emerging technologies and contribute to strategic architectural decisions.
• Work effectively from the onsite location while coordinating with offshore teams.

• Bachelor’s degree in Engineering, Computer Science, or equivalent.
• 8+ years in an architectural role
  .
• 18+ years of hands-on experience in web application development using:
• C#, ASP.NET, Web API
• .NET Core and .NET Framework
• 12+ years of experience with Angular or React
  .
• 6+ years of experience with Cloud platforms (Azure or GCP).
• 6+ years designing, developing, and deploying applications on Azure
  .
• 4+ years of experience with Microservices architecture
  .
• 10+ years of experience with NUnit (or equivalent unit testing frameworks).
• 8+ years of hands-on experience with Design Patterns and software design principles.
• 14+ years of experience with relational and No
  
  SQL databases
  :
• Strong experience with HTML5, CSS3, jQuery, JSON, and Bootstrap.
• Deep understanding of architecture patterns
  , system design, and enterprise integration.
• Excellent verbal and written communication skills.
• Strong presentation and stakeholder communication skills.
• Ability to align technical decisions with business objectives and long-term strategy.
• Confident decision-maker, balancing trade-offs, data, and scalability considerations.
• Strong interpersonal skills with the ability to mentor and guide teams.
• Collaborative mindset with effective onsite client engagement.
• Highly organized with strong time management and prioritization skills.
• Analytical and proactive approach to identifying risks and resolving challenges.