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Microsoft Corporation Logo Microsoft Corporation · IT - Software Development

Senior Software Engineer, Agent 365 - Tools

United States, Redmond Employment contract 119800.00 - 234700.00 USD / Year · Job Posted May 05, 2026
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Job Description

AI agents are rapidly becoming foundational across industries, transforming how organizations automate workflows, make decisions, and scale productivity. Unlike traditional prompt-based systems, modern agents can reason, plan, and execute actions autonomously unlocking new business scenarios and operational efficiencies. By 2028, more than 1.3 billion agents are expected to be in active use worldwide, creating not only unprecedented opportunities but also a massive new ecosystem that organizations must govern, monitor, and secure. Agent 365 is Microsoft’s unified control plane for AI agents—providing a comprehensive platform for agent registry, lifecycle management, access governance, observability, interoperability, and security. The Agent 365 Tools Team builds the tooling, infrastructure, and evaluation systems that empower agents to perform reliably at scale. We are seeking a Senior Software Engineer, Agent 365 - Tools to design and build high-scale, resilient, and distributed systems that enable agents to use tools effectively. If you thrive on building reliable services, optimizing performance at scale, and solving complex systems challenges, this is the role for you. 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.

Job Responsibility

  • Design and build scalable, resilient, and high-performance backend systems that power critical platform capabilities and enable reliable tool execution at scale.
  • Develop and deliver secure, efficient, and maintainable service architectures and APIs, with a strong focus on scalability, fault tolerance, and operational excellence.
  • Drive end-to-end execution of features and platform capabilities—from design through production—solving complex distributed systems challenges with ownership and urgency.
  • Collaborate with cross-functional stakeholders to deliver robust, end-to-end solutions, ensuring seamless integration across services and platform components.
  • Identify performance bottlenecks and reliability gaps, and lead improvements in system architecture, observability, and service efficiency.
  • Foster a strong engineering culture by mentoring peers, sharing expertise in systems design and backend best practices, and contributing to team growth and technical excellence.

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, or Python OR equivalent experience.
  • 4+ years of experience as a software engineer designing, implementing, and shipping cloud services or software products.
  • 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 have

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.

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