OneStream EPM Dev & Configurator (C# VB.NET) - Hybrid

General Motors Company; Warren (MI); Hybrid; USD 90,000 - 130,000; Full time

Job summary

General Motors Company seeks a hands-on Software Developer/Configurator to design, develop, test, implement, and support OneStream/EPM applications and related software solutions in a hybrid Warren, MI environment.

The role focuses on turning business requirements into maintainable software, with strong C# and VB.NET coding, debugging, and integration work across finance, planning, and technology teams. Previous OneStream experience is preferred.

Qualifications

• Bachelor’s degree in STEM, computer science, information technology, or related field.
• 5+ years of overall experience in planning development, software development, or a related technical discipline.
• Nice to have hands-on OneStream application development experience.
• Professional software development experience with C# and VB.NET. Candidates should be comfortable with reading, writing, debugging, enhancing, and supporting code in these languages.
• Working knowledge of software development fundamentals, including object-oriented design, coding standards, testing, troubleshooting, version control, and technical documentation.
• Extensive knowledge of finance planning and consolidation processes.
• Nice to have experience with enterprise planning and EPM technologies such as OneStream, Oracle, Hyperion, Hyperion Planning, PBCS, EPBCS, or Essbase.
• Experience with VBA and finance data warehouse analytics.
• Knowledge of SAP, GitHub, Azure Databricks, and Power BI.
• Ability to develop reusable, flexible, and globally compatible technical frameworks and architecture.

Responsibilities

• Design, develop, test, deploy, and maintain OneStream applications, customizations, integrations, and supporting software components.
• Write, enhance, debug, and optimize production-quality code using C#, VB, and VB.NET. Apply sound object-oriented programming and software engineering practices.
• Translate business and finance-planning requirements into technical designs, development tasks, and reliable software solutions.
• Build reusable, flexible, and globally compatible frameworks and components that improve the maintainability and scalability of EPM solutions.
• Participate in the full development lifecycle, including requirements analysis, technical design, coding, code review, testing, deployment, documentation, and post-implementation support.
• Investigate defects and production issues, identify root causes, and implement durable fixes and performance improvements.
• Collaborate with functional teams, project managers, and stakeholders to deliver high-quality solutions and support business adoption.
• Contribute to coding standards, development methodologies, technical documentation, test plans, and knowledge-sharing activities.
• Provide technical guidance and mentorship to other developers while promoting clean code, effective testing, and continuous improvement.

Skills

C#

VB.NET

Object-oriented design

Troubleshooting

Code reviews

Testing

Documentation

Finance knowledge

Education

Bachelor's degree in STEM or related field

Tools

OneStream

Power BI

GitHub

Azure Databricks

SAP

Hyperion

Essbase

Job description

General Motors Company seeks a hands-on Software Developer/Configurator to design, develop, test, implement, and support OneStream/EPM applications and related software solutions in a hybrid Warren, MI environment.

The role focuses on turning business requirements into maintainable software, with strong C# and VB.NET coding, debugging, and integration work across finance, planning, and technology teams. Previous OneStream experience is preferred.