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# NET Developer

- **Company:** Ztek Consulting
- **Location:** Coopersburg, PA, United States
- **Experience:** Expert
- **Salary:** $85,389.0 - $116,975.0
- **Contract:** Permanent contract
- **Skills:** Testing (Software), ASP.NET, .NET Framework, Communications Protocols, Databases, Electronic Data Interchange (EDI), Entity Framework, Microsoft SQL Server, Modbus, OPC Unified Architecture, RS-232, RS-485 Standard, Software Engineering, Software Systems, Transmission Control Protocol (TCP), Restful APIs, Legacy Systems, Web Api, Microservices
- **Published:** July 4, 2026
- **Apply:** https://www.careerjet.com/jobad/us5bb5631cc69247f821e07ba3a181e77b

## About the Role

* Bachelor's Degree

## Description

* We are seeking a highly skilled Senior .NET Application Engineer to lead the design, development, and support of tooling and test software solutions for IoT device manufacturing lines. This role focuses on building scalable, unified end-of-line (EOL) test platforms, replacing legacy systems, and enabling efficient, high-throughput production environments.
 * You will work at the intersection of software engineering, industrial automation, and manufacturing systems, developing robust applications that interface with hardware devices, PLCs, and enterprise systems.
 * Lead the design and development of a unified End-Of-Line (EOL) testing platform across multiple product lines, replacing legacy applications.
 * Re-architect existing software solutions, resulting in significant improvements in productivity (20%+).
 * Develop modular and reusable components to support diverse hardware devices, including:
 * Scanners, Printers, DMMs, Voltage/Current meters, etc.
 * Design and implement flexible frameworks supporting multiple communication protocols:
 * OPC UA, Modbus (RTU/TCP), Serial (RS232/RS485)
 * Design, build, and consume RESTful APIs using ASP.NET Core Web API.
 * Implement microservices-based architecture where applicable.
 * Integrate with centralized databases (MS SQL) using Entity Framework Core.
 * Enable seamless data exchange between production systems and enterprise platforms.


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