Principal Software Engineer - Front End

Job Description

The Copilot Studio Agent Platform & Experiences team is looking for a Principal Software Engineer, Front End to help build the user-facing layer of Microsoft’s next-generation AI tooling.

Requirements

• Bachelor's Degree in Computer Science or related technical field AND 6+ years technical engineering experience with coding in languages including C, C++, C#, Java, JavaScript, or Python OR equivalent experience.
• 5+ years of experience with front end technologies including JavaScript, React, or TypeScript.
• 4+ years of experience working in an environment building and supporting hosted services.

Responsibilities

• Lead the design and implementation of modern, accessible frontend solutions using React and TypeScript.
• Own architecture discussions, establish frontend patterns, and contribute to system design across web surfaces.
• Drive telemetry integration to track performance, usage, and reliability; use this data to refine the product.
• Mentor other engineers and act as a Designated Responsible Individual (DRI) for systems in production.
• Partner closely with PM, Design, and partner engineering teams to ship cohesive, customer-focused experiences.
• Write clean, extensible, and testable code that scales, while contributing to shared tools and internal frameworks.
• Promote engineering standards—code quality, testing, accessibility, security, and performance.
• Drive experimentation and data-driven decision-making in collaboration with product teams.

Benefits

• Employees at Microsoft are often offered comprehensive, “world-class” benefits—including health and mental-wellness programs, competitive pay with bonuses and stock awards, and retirement/savings options. Time-off and flexibility are common, with generous vacation and holidays, parental and caregiver leave, and flexible work schedules, alongside learning support, employee resource groups, product discounts, and matching-gifts/volunteering programs. Specific benefits can vary by region.