Senior Software Engineer - Excel Agent Team

Microsoft • Redmond, WA

23h

About The Position

Join the team that powers the world’s productivity! Excel is more than a spreadsheet—it’s a global platform relied on by millions of people every day, from students and scientists to business leaders and innovators. As we embark on the next chapter of intelligent agentic experiences, you have the opportunity to shape the future of how people work, analyze, and create with Excel.
As a Senior Software Engineer on the Excel Agent team, you’ll play a pivotal role in changing the way people work in Excel. You’ll design, build, and ship end-to-end features that combine Excel’s core strengths with cutting-edge agentic AI. This role offers the chance to accelerate your growth in product engineering, work across client and service layers, and develop deep instincts for delivering innovative, reliable AI solutions at scale.
We are a welcoming and supportive team that values inclusive decision-making, embraces feedback, and celebrates shared success. We are seeking engineers who thrive in dynamic environments, learn quickly, and are motivated to deliver meaningful results. If you bring curiosity, a collaborative spirit, and a passion for solving complex problems, you’ll find an opportunity here to make a lasting impact—both on our products and within our team.
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.

Requirements

• Bachelor’s Degree in Computer Science or related technical field AND 4+ years technical engineering experience with coding in languages including, but not limited to, C, C++, C#, Java, JavaScript/TypeScript, or Python
• OR equivalent experience.
• 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.

Nice To Haves

• Effective Communication skills and ability to collaborate across cross-functional teams
• Experience leveraging AI and LLM-based agents in software development, such as GitHub Copilot, Claude, code-generation workflows, automated test generation, AI-assisted debugging, or AI-based code review.
• Experience building agentic systems, including tool use/function calling, RAG, workflow orchestration, memory, planning, evaluator loops, or multi-agent patterns.
• Experience with high-scale service architectures, such as distributed systems, microservices, Kubernetes, service meshes, event-driven systems, caching, queues/streams, and observability for high-traffic production services.
• Applied science experience preferred, including experimentation, model evaluation, ranking/recommendation, usage analysis, and ability to apply SOTA approaches as needed.

Responsibilities

• Design, implement, and optimize AI-powered features and agentic workflows by leveraging evaluation, telemetry, and guardrails to ensure reliable, responsible behavior at scale; iterate quickly based on data and customer feedback.
• Leverage and proactively adopt AI-assisted development tools to accelerate engineering and improve code quality.
• Work closely with product, design, and applied science partners to deliver innovative solutions that integrate state-of-the-art AI technologies that meet user needs.
• Act as a Designated Responsible Individual (DRI) on-call to monitor feature health; drive mitigations for regressions and incidents; and follow through with post-incident improvements.
• Break down larger work into well-scoped tasks, and deliver tested, maintainable code across client and service components.
• Reuse shared components and patterns; contribute improvements to code quality, reliability, observability, and engineering standards for agentic experiences in Excel.

What This Job Offers

• Job Type: Full-time
• Career Level: Mid Level
• Number of Employees: 5,001-10,000 employees