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OneStream is building a unified Corporate Performance Management (CPM) platform for large enterprises, serving mission-critical financial and operational workloads for the Office of the CFO across highly regulated industries. The platform runs on a sophisticated technology stack including distributed multi-threaded services, OLAP and multidimensional data models, modern web frameworks, SQL-based persistence, and cloud-native SaaS architecture on Microsoft Azure.
As a Software Engineer I, you will design, develop, test, and maintain high-quality software components within OneStream solutions. You will own assigned features through the full software development lifecycle, working under guidance from senior engineers while collaborating with Product, QA, and other engineering team members. Your responsibilities include implementing features using established design patterns and best practices, contributing to UI development using modern frameworks (Angular, React, Blazor), developing and integrating APIs following RESTful standards, and writing clean, maintainable, well-documented code with appropriate unit test coverage.
You will use AI-assisted development tools to accelerate development, refactoring, test creation, and documentation while validating AI-generated output for correctness, security, and architectural alignment. You will participate in peer code reviews, assist in diagnosing and resolving software defects across development and test environments, and follow established SDLC, security, and compliance protocols. Success is measured by code quality, reliability, learning velocity, and the ability to deliver well-scoped features safely and predictably.
Regular travel is not expected for this position.
**Requirements:**
- Bachelor's degree in Computer Science, Software Engineering, or 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 (C#, .NET, ASP.NET)
- Basic experience with modern UI frameworks (Angular, React, Blazor, WPF)
- Familiarity with data formats and markup languages (JSON, XML)
- Working knowledge of relational databases and SQL fundamentals
- Experience using source control systems (Git) and participating in CI/CD workflows
- Ability to write and review unit tests to validate functionality
- Solid understanding of software development fundamentals and object-oriented design
- Strong problem-solving and debugging skills
- Effective written and verbal communication skills
- Ability to work collaboratively in a team-oriented environment
**Preferred Experience:**
- 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
