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# Sr. Software Engineer (C++ & C#) - Onsite

- **Company:** Cognizant Technology Solutions Corporation
- **Location:** Lake Forest, CA, United States
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** Microsoft Windows, Amazon Web Services, Software Applications, Automation of Tests, Microsoft Azure, C Sharp (Programming Language), C++ (Programming Language), Client Server Models, Computer Networks, Continuous Integration, Software Debugging, Software Design Patterns, Distributed Systems, Microsoft Visual Studio, Object-Oriented Software Development, Performance Tuning, Scrum Methodology, Software Maintenance, Simulation Software, Software Construction, Software Engineering, Software Systems, Digital Twin, Reliability of Systems, Git, Operational Systems, Restful APIs, Software Version Control
- **Published:** July 15, 2026
- **Apply:** https://dejobs.org/x/x/722DDED9717F485B99BD75677B675A7A/job/

## About the Role

* 5+ years of software development experience.
 * Strong expertise in C++, C#, Visual Studio, and Windows application development.
 * Experience with REST APIs, networking concepts (L2/L3), and client/server architectures.
 * Solid understanding of OOP/OOD, design patterns, automated testing, and version control systems.

Preferred Skills:

 * Experience with industrial automation, control systems, simulation software, or Digital Twin technologies.
 * Exposure to cloud platforms such as Azure or AWS.
 * Knowledge of operational technology (OT) environments and industrial networking.

Join a team building innovative software solutions that help industrial organizations improve operational readiness, system reliability, and workforce training through advanced simulation and Digital Twin technologies.

## Description

We are looking for a Senior Software Engineer to develop and support advanced Digital Twin and Control System Simulation solutions used in industrial environments. This role involves designing, developing, and maintaining software applications that emulate plant control systems for testing, validation, troubleshooting, and operator training., * Develop and maintain software applications using C++ and C#.

 * Design and enhance client/server solutions, REST APIs, and distributed systems.
 * Apply object-oriented design principles, design patterns, and software engineering best practices.
 * Troubleshoot complex issues through debugging, root-cause analysis, and performance optimization.
 * Develop automated tests and support quality initiatives using TDD and CI/CD methodologies.
 * Collaborate with cross-functional teams using Azure DevOps, Git, and Agile/Scrum practices.


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