CareerPlan

Senior .NET Developer - Modernization Lead

USAFull-time$259584k–$302848k2026-11-09
On-site

Core

Lead the design, development, and modernization of C#/.NET applications, refactoring legacy systems and building secure, scalable REST APIs.

Role type

Senior .NET Developer (Modernization Lead)

Builds

Modernized C#/.NET applications, REST APIs, and backend services

Domain

Enterprise software development, legacy modernization

Required skills

C#, .NET, ASP.NET MVC, REST API, SQL Server, JWT, OAuth, dependency injection, middleware, asynchronous processing, Angular or React, Git, CI/CD, cloud platforms, technical leadership, mentoring

Technologies

ASP.NET, Angular, C#, CI/CD, Cloud, DevOps, Git, JWT, MVC, OAuth, React, SQL

Responsibilities

Lead the design, development, and modernization of C#/.NET applications; Refactor legacy systems and reduce technical debt; Build secure, scalable REST APIs and backend services; Optimize SQL Server performance, indexes, and queries; Set coding standards and conduct design reviews; Troubleshoot production issues and improve system reliability; Work with QA and DevOps on automation and CI/CD; Mentor developers and guide technical decisions

Seniority

Senior, hands-on IC with leadership responsibilities