Software Engineer I

Role Description

The Software Engineer designs, develops, tests, and maintains software components within OneStream, building high-quality features using established design patterns and best practices. This role owns assigned features through the full software development lifecycle, collaborates with senior engineers, Product, and Quality Assurance, and develops user interfaces, APIs, and data access logic. The Software Engineer participates in code reviews and assists in diagnosing and resolving defects and production issues to ensure reliable, high-performing solutions and positive customer experience. Success in this role is measured by code quality, reliability, learning velocity, and the ability to deliver well‑scoped features safely and predictably.

Primary Duties and 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.

Qualifications

• 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 XML.

Preferred Education and 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.

Knowledge, Skills, and Abilities

• 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.

Benefits

• Excellent Medical Plan.
• Dental & Vision Insurance.
• Life Insurance.
• Short & Long Term Disability.
• Vacation Time.
• Paid Holidays.
• Professional Development.
• Retirement Plan.

Company Description

OneStream is how today’s Finance teams can go beyond just reporting on the past and Take Finance Further™ by steering the business to the future. It’s the only enterprise finance platform that unifies financial and operational data, embeds AI for better decisions and productivity, and empowers the CFO to become a critical driver of business strategy and execution. Our vision is to be the operating system for modern finance, digitizing core financial functions and empowering the CFO to become a critical driver of business strategy.