Software Engineer I

OneStream Software delivers a unified Corporate Performance Management (CPM) platform designed to meet the complex financial, operational, and analytical needs of large enterprises. The Software Engineer I designs, develops, tests, and maintains software components, collaborating with senior engineers and other teams to ensure high-quality features and reliable solutions.

Responsibilities:

• Design, develop, test, and maintain high-quality software components within OneStream solutions
• Implement features using established design patterns and best practices under guidance from senior engineers
• Contribute to UI development using modern UI frameworks including Angular, React, Blazor, and WPF
• Develop and integrate APIs and services following RESTful standards and practices
• Write clean, maintainable, and well-documented code with appropriate unit test coverage
• Use AI-assisted development tools to accelerate development, refactoring, test creation, and documentation, while validating AI-generated output for correctness, security, and architectural alignment
• Participate in peer code reviews to improve code quality and consistency
• Assist in diagnosing, debugging, and resolving software defects across development and test environments
• Collaborate with Product, QA, and other engineering team members to deliver features that meet functional and quality expectations
• Follow established SDLC, security, and compliance protocols

Requirements:

• Bachelor's degree in Computer Science, Software Engineering, or a related technical field, or equivalent practical experience
• 2–4 years of professional software development experience
• Experience with object-oriented programming and the Microsoft technology stack, including C#, .NET, and ASP.NET
• Basic experience with modern UI frameworks such as Angular, React, Blazor, and WPF
• Familiarity with data formats and markup languages such as JSON and X
• Solid understanding of software development fundamentals and object-oriented design
• Ability to learn new technologies and frameworks quickly
• Strong problem-solving and debugging skills
• Effective written and verbal communication skills
• Ability to work collaboratively in a team-oriented environment
• Attention to detail and commitment to code quality
• Experience building enterprise or platform-oriented applications
• Familiarity with cloud‑hosted or SaaS‑based systems
• Introductory experience with automated testing practices
• Azure Fundamentals or entry-level Azure certification