> Markdown version of [/jobs/ext/3835263-senior-c-net-server-side-engineer-in-united](https://www.wearedevelopers.com/jobs/ext/3835263-senior-c-net-server-side-engineer-in-united). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior C#.NET Server Side Engineer in United - **Company:** Energy Jobline - **Location:** Carbon, WV, United States - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** .NET Framework, Microsoft Windows, Unit Testing, C Sharp (Programming Language), Cloud Computing, Linux, Memory Management, Query Optimization, Standard Sql, Service-Oriented Architecture, Multithreading, Istio, Asynchronous Programming, Api Gateway - **Published:** October 19, 2026 - **Apply:** https://www.energyjobline.com/job/senior-cnet-server-side-engineer-united-31998222 ## About the Role We are seeking a passionate and skilled C#.NET Server-side developer., n · C# (.NET) experience, preferably running on Linux or porting from Windows to Linux. Advanced knowledge of C#/.NET, with experience in multithreading, asynchronous programming, and memory management. \n · Demonstrable experience working in the FinTech space (preferably working on Trading platforms) \n · Strong experience designing modular, service-oriented architectures built to scale and handle high volumes of requests \n General experience working in Hybrid on-prem / cloud-based environments \n · Experience with unit testing frameworks and general best practices \n · Excellent communication and collaboration skills \n · Ability to work independently and as part of a team with geo-dispersed individuals, · Solid knowledge of SQL and experience in writing efficient queries \n · Experience with API integration and data fetching \n · Experience with API Gateways and Service Mesh architectures