Senior Frontend Software Engineer

Senior Software Engineer (Frontend)

Overview

Microsoft is on a mission to empower every person and every organization on the planet to achieve more. Our culture is centered on embracing a growth mindset, a theme of inspiring excellence, and encouraging teams and leaders to bring their best each day. In doing so, we create life-changing innovations that impact billions of lives around the world. You can help us to achieve our mission.

Microsoft 365 Copilot Chat is the conversational core of Microsoft Copilot —where enterprise AI meets productivity. It’s the default interface through which users summarize meetings, draft emails, generate insights from enterprise data, and coordinate with teams using natural language. As Microsoft accelerates its AI-first strategy, Chat isn’t just a feature—it’s the gateway. It’s the most visible and critical surface for AI-powered work.

As a Senior Software Engineer, you will design and deliver next-generation conversational experiences for Microsoft 365 Copilot Chat. Your mission is to accelerate delivery by shaping engineering systems that enable rapid iteration, continuous deployment, and resilient live-site operations. You’ll build frameworks for experimentation, automate release and monitoring processes, and embed AI-driven solutions to optimize workflows and elevate user experience. This role demands a strong balance of speed and reliability, ensuring seamless performance at global scale while collaborating with seasoned engineers and leaders for a product that is at the epicenter of Microsoft.

What makes this role unique:

• Impact at Scale: Contribute to one of Microsoft’s most visible AI-powered experiences used by millions globally.
• Engineering Systems Focus: Improve release systems, experimentation platforms, and live-site reliability for a flagship product.
• AI-Driven Innovation: Apply cutting-edge AI to transform development workflows and user experiences.
• Cross-Disciplinary Collaboration: Work closely with UX, AI, and platform teams to deliver breakthrough experiences.
• Balance Speed & Reliability: Enable rapid iteration without compromising trust and performance.

How we work:

• Customer-obsessed & data-informed: We form bold hypotheses, ship safely, measure rigorously, and iterate.
• Fundamentals at the core: We invest in building solid foundation that enables teams to build and ship innovation.
• Engineering excellence: We invest in tests, telemetry, agentic coding enablement, and continuous hardening to earn the right to go faster.
• Inclusive at our core: We welcome diverse perspectives and design accessible experiences for a global audience.
• Outcomes over output: We celebrate learning and hold ourselves accountable to business and customer impact.

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.

Responsibilities

• Create, implement, optimize, debug, refactor, and reuse code to establish and improve performance and maintainability, effectiveness, and return on investment (ROI). Design and implement frameworks for experimentation and data-driven analysis.
• Enhance engineering systems for rapid iteration and continuous deployment.
• Leverage subject-matter expertise of product features and partners with appropriate stakeholders (e.g., project managers) to drive a workgroup's project plans, release plans, and work items.
• Automate development workflows, release pipelines, and live-site operations. Integrate AI-driven solutions to optimize developer workflows and improve UX.
• Act as a Designated Responsible Individual (DRI) and guides other engineers by developing and following the playbook, working on call to monitor system/product/service for degradation, downtime, or interruptions, alerting stakeholders about status and initiate actions to restore system/product/service for simple and complex problems when appropriate.
• Proactively seek new knowledge and adapt to new trends, technical solutions, and patterns that will improve the availability, reliability, efficiency, observability, and performance of products while also driving consistency in monitoring and operations at scale. 

Qualifications

Required/Minimum Qualifications:

• Bachelor's Degree in Computer Science or related technical field AND 7+ years technical engineering experience with coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, or Python.
  • OR equivalent experience.
• Technical Skills: Expertise in CI/CD, infrastructure-as-code, release management, telemetry, and monitoring.
• Familiarity with AI/ML concepts and experience applying them to user-facing features or developer workflows.
• Proven track record of building resilient systems with measurable performance metrics.
• Soft Skills: Problem-solving ability, passion for user-centric design, and collaboration across teams. 

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 6+ years 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 8+ years technical engineering experience with coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, or Python.
  • OR equivalent experience. Proficiency in modern web/app development (React, TypeScript).
• Security, compliance, privacy‑by‑design mindset; experience with cost‑aware engineering.
• Solid collaborator with PM and design; communicates clearly with both technical and non-technical audiences. 

 

#M365CORE

This position will be open for a minimum of 5 days, with applications accepted on an ongoing basis until the position is filled.

Microsoft is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to age, ancestry, citizenship, color, family or medical care leave, gender identity or expression, genetic information, immigration status, marital status, medical condition, national origin, physical or mental disability, political affiliation, protected veteran or military status, race, ethnicity, religion, sex (including pregnancy), sexual orientation, or any other characteristic protected by applicable local laws, regulations and ordinances. If you need assistance with religious accommodations and/or a reasonable accommodation due to a disability during the application process, read more about requesting accommodations.

Experience Level

Senior Level