Senior- Principal Solution Engineer - C#/.NET

Job Posting End Date

09-10-2025

Please note the job posting will close on the day before the posting end date.

Job Summary

Part of a larger team delivering high quality technology solutions to the business. Design, develop and install software solutions. Build high-quality, innovative and fully performing software in compliance with internal architecture, development & design standards & best practices. Design, modify, develop, write, implement and troubleshoot software programming applications. Support and/or install software applications. Participate in the testing process through test review and analysis, test witnessing and certification of software.  Works within a Waterfall or Agile methodology/framework-based team. Collaborates heavily with Project Management, Business Analyst and Infrastructure Job Families.

Job Description

What You'll Do:

• Support Commercial Operations by facilitating Day Ahead and Real-Time Market Operations, including in-house solutions.

• Troubleshoot issues across the Commercial Operations application portfolio.

• Implement measures for security vulnerabilities, including password vault technology and server upgrades.

• Identify challenges and propose effective solutions while aligning with client goals.

• Generate infrastructure support documentation and provide training and mentoring to team members.

• Maintain a high level of knowledge about the company's software/hardware products and develop advanced solutions for customer issues.

What We're Looking For:

Solution Engineer Senior (SG7):

Education: Bachelor's degree in computer science, engineering, or related technical field is required. 

Experience: 5 years of relevant work experience is required.

An equivalent combination of education and related experience may be considered.

Solution Engineer Principal (SG8):

Education: Bachelor's degree in computer science, engineering, or related technical field is required.

Experience: 7 years relevant work experience is required.

An equivalent combination of education and related experience may be considered.

Nice-to-have:

Skills/Experience:

• .NET Framework / .NET Core: Knowledge of differences; cross-platform development.

• Programming Languages:

  • C#: Proficient in OOP, LINQ, async/await, delegates/events.

  • Java: Proficient in Java SE, OOP, data structures; familiar with Java EE, Hibernate, JPA, Spring (DI, AOP).

• Web Development:

  • ASP.NET MVC: MVC design pattern knowledge.

  • ASP.NET Web API: RESTful service development.

• Frontend Technologies: Strong in HTML/CSS/JavaScript; familiar with Bootstrap, jQuery, React.

• Data Access:

  • Entity Framework: ORM and LINQ queries.

  • ADO.NET: Database operations.

• Web Services: Experience with SOAP, RESTful services; familiar with WCF.

• Security: Understanding of JWT, OAuth, and data protection.

• Testing and Debugging: Proficient in unit testing (NUnit, MSTest), mocking, and Visual Studio debugging.

• Deployment & CI/CD: Deploying .NET apps (IIS, Azure); CI/CD practices (Azure DevOps, GitHub Actions).

• Containerization & Microservices: Familiarity with Docker; basic microservices design.

• Performance Optimization: Knowledge of caching strategies and profiling.

• Source Code Management: Proficient in Git; skills in branching and merging.

• Database Skills:

  • SQL: Proficient in syntax and performance tuning.

  • Oracle: Knowledge of PL/SQL and architecture.

  • SQL Server: Experience with SSMS and ETL (SSIS).

• Containerization: Understanding of Docker, Kubernetes; CI/CD with Helm in OpenShift.

Licenses/Certifications: Microsoft .NET Certifications

What you’ll get:

Solution Engineer Senior (SG7): $85,081 - $106,354

Solution Engineer Principal (SG8): $96,110 - $124,941

In addition to a competitive compensation, AEP offers a unique comprehensive benefits package that aims to support and enhance the overall well-being of our employees.

Where Putting the Customer First Powers Everything We Do

At AEP, we’re more than just an energy compan