We build Fluent UI React (https://github.com/microsoft/fluentui), the component library that powers user experiences across Microsoft 365. Our mission is to take Fluent UI React into the future with a modern, model‑first design system and state‑of‑the‑art GenUI solutions. We are evolving the library to deliver smaller bundles, faster rendering, and first‑class accessibility.

We do this in close partnership with product teams across Microsoft. Fluent UI React is the foundation for consistent, familiar experiences across Word, PowerPoint, Excel, Outlook, Teams, OneDrive, and many other web applications.

We build in the open, value community contributions, and actively invest in growing the ecosystem. Developers inside and outside Microsoft use Fluent UI React as a battle‑tested library for building high‑quality, brandable web experiences.

We’re looking for an experienced, customer‑driven Software Engineer who values collaboration, teamwork, and helping others succeed, someone excited about shaping a modern design system powered by models and next‑generation UI technologies.

Microsoft’s mission is to empower every person and every organization on the planet to achieve more. As employees we come together with a growth mindset, innovate to empower others, and collaborate to realize our shared goals. Each day we build on our values of respect, integrity, and accountability to create a culture of inclusion where everyone can thrive at work and beyond.

• Contribute to the evolution of Fluent UI React by building new components, improving existing ones, and fostering healthy community engagement and external contributions.
• Communicate clearly and empathetically through concise technical documentation, effective collaboration with the team, and strong partnership with product groups across Microsoft.
• Author robust integration, unit, and end‑to‑end tests to ensure component quality, reliability, and resilience across both common and edge‑case scenarios.
• Build strong relationships with partner teams by providing guidance, support, and best practices for integrating Fluent UI React into Microsoft products and experiences.
• Collaborate on a model‑first design system and next‑generation GenUI workflows that improve how Fluent components are designed, generated, and consumed.

• Bachelor's Degree in Computer Science or related technical field AND technical engineering experience with coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, or Python
  • OR equivalent experience.
• Professional software engineering experience.
• Proficient in TypeScript/JavaScript.
• Experienced in web development, including HTM/CSS, browser nuances, and web Accessibility.
• Demonstrate strong communication skills: the ability to write concise and accurate technical documentation, communicate with the team and partners effectively and with empathy.
• Knowledge and passion for OSS libraries and building community.

Other Requirements:

Ability to meet Microsoft, customer and/or government security screening requirements are required for this role. These requirements include but are not limited to the following specialized security screenings:

• Microsoft Cloud Background Check: This position will be required to pass the Microsoft Cloud background check upon hire/transfer and every two years thereafter.

Preferred Qualifications:

• Master's Degree in Computer Science or related technical field AND technical engineering experience with coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, or Python
  • OR Bachelor's Degree in Computer Science or related technical field AND technical engineering experience with coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, or Python
  • OR equivalent experience.