Senior .NET Application Architect and Lead Developer - Columbus - Main Sail

    Main Sail
    Main Sail Columbus

    1 week ago

    Description
    About the Job
    We are looking for a .NET Architect & Developer to support Franklin County.
    The Franklin County Auditor's Office is seeking a Senior .NET Application Architect and Lead Developer to provide technical leadership for application migration and modernization efforts following a recent tax accounting system implementation. This role reports directly to the IT Director and is responsible for assessing existing MVC based applications, defining architecture recommendations, and leading hands-on development work.
    This is a delivery-focused role requiring both architectural judgment and direct coding responsibility in a fast-paced, high-visibility environment.
    Essential Duties and Responsibilities:
    • Review existing MVC based applications and identify required migration or modernization work.
    • Define and recommend application architecture patterns and technical standards appropriate to the current environment.
    • Break technical work into milestones, deliverables, and development tasks.
    • Provide development estimates and support project planning activities.
    • Lead hands-on development of .NET applications and REST APIs.
    • Design, develop, and optimize SQL Server stored procedures, indexes, and queries.
    • Ensure best practices with Entity Framework and data access patterns.
    • Collaborate with business analysts to translate functional requirements into technical designs.
    • Work closely with the IT Project Manager to define scope and sequencing.
    • Mentor and support other developers through code reviews and troubleshooting.
    • Support development workflows using GitHub Enterprise.
    • Communicate progress, risks, and technical recommendations clearly to the IT Director and project leadership.
    • Perform other related duties as assigned.
    Additional Requirements:
    • Professional .NET development experience | Required | 8 | Years.
    • Demonstrated experience taking ownership of existing applications and codebases | Required.
    • Deep expertise with C#, .NET, and Entity Framework | Required.
    • Strong experience designing and building RESTful APIs and using GraphQL | Required.
    • Advanced SQL Server expertise, including stored procedures and indexing strategies | Required.
    • Proven experience using GitHub Enterprise. | Required.
    • Demonstrated experience leading development efforts and mentoring other developers | Required.
    • Strong written and verbal communication skills | Required.
    Desired Experience:
    • Experience migrating or modernizing legacy MVC applications | Highly desired.
    • Experience with React, Vite, and NodeJS | Highly desired.
    • Experience stabilizing or improving applications in active production environments | Highly desired.
    • Experience working in public sector or highly visible environments | Highly desired.
    • Experience supporting financial, tax, or property-related systems | Highly desired.
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