Software Engineer I
OneStream Software
Salary undisclosed
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Description
At OneStream, we're on a mission to empower every Finance organization and professional to exceed their potential. Our global teams span continents, cultures, and time zones, united by a shared purpose as we build the operating system for modern Finance and help organizations move with greater speed, clarity, and confidence.
That mission comes to life through our people. Behind every innovation, customer success, and milestone are talented people working together to make a difference. That's why we're looking for people who are bold enough to think big, authentic in how they lead and collaborate, curious about what's possible, and committed to delivering results.
Want a closer look before you apply? Explore our Careers site to learn more about our people, culture, and benefits.
SUMMARY
OneStream Software delivers a unified Corporate Performance Management (CPM) platform designed to meet the complex financial, operational, and analytical needs of large enterprises. OneStream operates at enterprise scale, supporting mission-critical workloads for the Office of the CFO across highly regulated industries.
The OneStream platform is built on a sophisticated technology stack that includes distributed, multi-threaded services, OLAP and multidimensional data models, modern web frameworks, SQL-based persistence, and increasingly cloud-native, SaaS-oriented architecture on Microsoft Azure.
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, and Blazor.
- 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
REQUIRED EDUCATION AND EXPERIENCE
- 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.
- 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.
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.
- Familiarity with Cursor, Claude Code, etc.
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.
SUPERVISORY RESPONSIBILITIES
There are no supervisory responsibilities required for this role.
TRAVEL
Travel Requirement: Regular travel is not expected for this position
Total compensation is based on experience, skills, and location using objective, job-related criteria. Additional variable compensation and benefits may apply.
All candidates must be legally authorized to work for any company in the country where this position is located without sponsorship.
OneStream Software is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex (including pregnancy, sexual orientation, or gender identity), national origin, age, disability, genetic information, veteran status, or any other characteristic protected by applicable local laws, regulations, and ordinances.
If you need assistance and/or a reasonable accommodation during the application process, reach out to RecruitingAccommodations@onestreamsoftware.com.
OneStream may use the personal information you provide to process your application and contact you, in accordance with applicable privacy laws such as the CCPA and GDPR. For more information about how we handle your personal information, please review OneStream's Privacy Policy.
Emails about job opportunities at OneStream are only sent by employees with an @onestreamsoftware.com email address. Reach out to your contact at OneStream if you suspect a phishing scam.
About this role
OneStream Software is hiring a Software Engineer I to join their EMEA office and contribute to their Corporate Performance Management platform, which serves mission-critical financial operations for large enterprises. You'd own features across the full development lifecycle—designing, building, testing, and maintaining software components using C#, .NET, and ASP.NET on the Microsoft technology stack. The role involves developing user interfaces with modern frameworks like Angular, React, or Blazor, building APIs, writing unit tests, and collaborating with senior engineers, product teams, and QA to deliver reliable solutions.
This position suits someone with 2–4 years of professional development experience who has a solid grasp of object-oriented programming, relational databases, and Git workflows. You'll be expected to write clean, maintainable code, participate in peer reviews, and debug issues across development and test environments. The company emphasizes using AI-assisted development tools to accelerate your work, so comfort with those technologies is a plus. Enterprise or SaaS experience and Azure familiarity are preferred but not required.
The role is based in-office across the EMEA region with no regular travel expected. Compensation ranges from €49,000 to €64,000 annually depending on experience and location. You'll need a bachelor's degree in Computer Science or related field (or equivalent practical experience) and must be legally authorized to work in your country without sponsorship.
Typical pay for this role
$140,000
Typical range: $120,000 to $140,000
Pay for this role
The employer didn't post a pay range for this role. That usually means pay is set in negotiation, which favors whoever arrives with numbers. Check ranges on comparable Software Engineer I postings in Europe Middle East Africa, and analyze any offer before you accept it.
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