CrawlJobs Logo
Microsoft Corporation Logo Microsoft Corporation · IT - Software Development

Senior Software Engineer - M365 Copilot

China, Suzhou · Job Posted February 10, 2026
Apply Position
Job Link Share

Job Description

Come help build the data‑driven services that support and empower Microsoft 365 Copilot. In this role, you will work on large‑scale, distributed backend systems that construct, process, and move information to enable intelligent Copilot experiences across Microsoft 365 products. You will join a team focused on turning complex data flows into reliable, high‑throughput services that Copilot depends on at scale.

Job Responsibility

  • Design, build, and maintain distributed platform services that support Microsoft 365 Copilot across multiple products
  • Develop cloud‑native microservices using ASP.NET and related technologies
  • Build and optimize high‑throughput processing pipelines that handle large‑scale data ingestion, transformation, and transmission between services
  • Design and operate systems that process large volumes of data with strong guarantees around reliability, consistency, and performance
  • Analyze end‑to‑end service and data flows to understand system behavior, bottlenecks, and failure modes
  • Identify, troubleshoot, and resolve data processing and quality issues in production environments
  • Partner with engineers across teams to define service interfaces, processing contracts, and scalable integration patterns

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
  • Solid experience building distributed systems and service‑oriented architectures
  • Hands‑on experience with data processing pipelines and systems that handle large‑scale data flows
  • Proficiency in C# / ASP.NET or similar backend development frameworks
  • Solid understanding of high‑throughput systems, including performance, reliability, and scalability trade‑offs
  • Experience working with Microsoft Azure fundamentals, including authentication, identity, and core platform services

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
  • Experience designing or operating big data systems, including large‑scale storage, processing, or distributed computation
  • Familiarity with microservice‑based data processing architectures in cloud environments
  • Understanding of service‑to‑service data exchange, flow control, and fault tolerance
  • Experience debugging complex issues in distributed, data‑intensive production systems
  • Solid analytical and problem‑solving skills, with clear technical communication
Microsoft Corporation - All Job Offers

Looking for more opportunities?

Search for other job offers that match your skills and interests.

Suggested Tags: Frontend Developer Secretary Talent Manager Salesforce Administrator Data Analyst
Similar Jobs for

Senior Software Engineer - M365 Copilot

8 matching positions

Senior Software Engineer - M365 Copilot

We are looking for a Full-Stack Software Engineer with strong infrastructure fun...
Location
Location
China , Beijing
Salary
Salary:
Not provided
https://www.microsoft.com/ Logo
Microsoft Corporation
Expiration Date
Until further notice
Flip Icon
Requirements
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
  • Solid experience designing distributed systems (fault tolerance, scalability, consistency tradeoffs, performance, and operability)
  • Hands-on experience with Kubernetes in production (cluster architecture, networking, storage, security, scaling)
  • Solid database and data-system expertise (e.g., PostgreSQL/MySQL, NoSQL, caching, messaging/streaming) with proven performance and reliability tuning experience
  • Proficiency in at least one of: Python, C++, Rust, or Java (production-quality coding)
  • Experience with at least one major cloud platform: Azure and/or AWS (compute, networking, IAM, managed Kubernetes, storage, monitoring)
  • Solid engineering practices: testing, CI/CD, code quality, design docs, and operational ownership (on-call/incident response)
  • Ability to meet Microsoft, customer and/or government security screening requirements are required for this role
  • Microsoft Cloud Background Check: This position will be required to pass the Microsoft Cloud background check upon hire/transfer and every two years thereafter
Job Responsibility
Job Responsibility
  • Architect, build, and operate a scalable and reliable sandbox infrastructure for AI Agent execution, including isolation, scheduling, lifecycle management, and resource governance
  • Design and implement distributed backend services/APIs to orchestrate high-throughput, low-latency sandbox sessions and system integrations
  • Build and optimize Kubernetes-based platform capabilities (multi-tenancy, autoscaling, networking, storage, admission control, policy enforcement)
  • Own and evolve the data layer (relational/NoSQL/cache/queue), including schema design, indexing, performance tuning, and reliability strategies (backups, replication, failover)
  • Develop full-stack features: implement secure, performant backend endpoints and build modern web UIs for platform workflows (e.g., session management, policy configuration, debugging, monitoring views)
  • Drive UX excellence: collaborate with designers and product managers, translate user needs into clear interaction flows, iterate based on feedback and usage telemetry, and maintain consistent UI patterns/design systems
  • Improve system robustness via SLO-driven engineering, capacity planning, incident response, and continuous hardening of reliability and security
  • Implement end-to-end observability (metrics, logs, traces), define dashboards/alerts, and reduce operational toil with automation and self-service tooling
  • Identify bottlenecks and lead performance/cost optimizations across compute, storage, and network
  • Maintain high engineering standards through code reviews, automated testing, CI/CD, documentation, and well-defined runbooks
  • Fulltime
Read More
Arrow Right

Senior Software Engineer - M365 Copilot App

The M365 Copilot App Platform team is the team that provides the platform APIs, ...
Location
Location
United States , Redmond
Salary
Salary:
119800.00 - 234700.00 USD / Year
https://www.microsoft.com/ Logo
Microsoft Corporation
Expiration Date
Until further notice
Flip Icon
Requirements
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
  • Ability to meet Microsoft, customer and/or government security screening requirements
  • Microsoft Cloud Background Check
Job Responsibility
Job Responsibility
  • Lead the design and implementation of new middle-tier features working with architects and other individual contributors
  • Develop and maintain the middle-tier, APIs, deployment pipelines, and infrastructure
  • Collaborate with cross-functional teams to enable the M365 Copilot app and drive innovation
  • Work closely with partner teams to build new additional capabilities into our application
  • Design, produce and deliver software to improve reliability, scalability, performance, security, efficiency, etc
  • Opportunity for full-stack development work that spans our client app and middle-tier services
What we offer
What we offer
  • Benefits and other compensation may be eligible
  • Find additional benefits and pay information here: https://careers.microsoft.com/us/en/us-corporate-pay
  • Fulltime
Read More
Arrow Right

Senior Software Engineer - M365 Copilot App Platform

The M365 Copilot App Platform team is the team that provides the platform APIs, ...
Location
Location
United States , Redmond
Salary
Salary:
119800.00 - 234700.00 USD / Year
https://www.microsoft.com/ Logo
Microsoft Corporation
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • Bachelor's Degree in Computer Science or related technical field AND 2+ years technical engineering experience with coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, Typescript or Python
  • OR equivalent experience
  • 4+ years of software engineering experience working on web services
  • Ability to meet Microsoft, customer and/or government security screening requirements are required for this role
  • Microsoft Cloud Background Check: This position will be required to pass the Microsoft Cloud background check upon hire/transfer and every two years thereafter
Job Responsibility
Job Responsibility
  • Lead the design and implementation of new middle-tier features working with architects and other individual contributors
  • Develop and maintain the middle-tier, APIs, deployment pipelines, and infrastructure
  • Collaborate with cross-functional teams to enable the M365 Copilot app and drive innovation
  • Work closely with partner teams to build new additional capabilities into our application
  • Design, produce and deliver software to improve reliability, scalability, performance, security, efficiency, etc
  • Opportunity for full-stack development work that spans our client app and middle-tier services
  • Fulltime
Read More
Arrow Right

Senior Software Engineer - M365 Copilot App

Are you a UX engineer passionate about crafting high-performing, scalable fronte...
Location
Location
United States , Redmond
Salary
Salary:
119800.00 - 234700.00 USD / Year
https://www.microsoft.com/ Logo
Microsoft Corporation
Expiration Date
Until further notice
Flip Icon
Requirements
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 in frontend architecture, performance engineering, or scalable web application development.
Job Responsibility
Job Responsibility
  • You will design and implement scalable, high-performance frontend systems using React, TypeScript, microfrontends, and modern rendering stacks to power AI productivity experiences across the M365 Copilot App—while ensuring performance telemetry is built into the experience.
  • You will partner across Microsoft, including teams like Create, Copilot Notebooks, and Copilot, to evolve a shared frontend platform and define reusable, portable architectural patterns and best practices that enable consistent, intelligent, and data-driven performance at scale.
  • You will lead architectural decisions and contribute hands-on code to advance the state of the art in frontend engineering, balancing innovation with platform stability and applying insights from live site performance data to guide trade-offs.
  • You will apply a data-driven approach to performance, leveraging real-world telemetry, experimentation, and diagnostics to continuously optimize responsiveness, accessibility, and reliability—using metrics like UPLT and live site dashboards to validate improvements.
  • You will mentor engineers and foster a culture of technical excellence through best practices in frontend architecture, performance profiling, telemetry integration, and cross-platform design systems.
  • Fulltime
Read More
Arrow Right

Senior Software Engineer

The IC3 Real-Time Communications (RTC) team is the foundation for real-time meet...
Location
Location
United States , Multiple Locations
Salary
Salary:
119800.00 - 234700.00 USD / Year
https://www.microsoft.com/ Logo
Microsoft Corporation
Expiration Date
Until further notice
Flip Icon
Requirements
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#, Python, Rust, Java, C, or C++
  • Ability to meet Microsoft, customer and/or government security screening requirements
  • Microsoft Cloud Background Check
Job Responsibility
Job Responsibility
  • Building a unified infrastructure using advanced models to derive semantic meaning from meetings, supporting real-time extraction where needed and deferred extraction where possible by utilizing idle CPU/GPU resources across IC3 and M365 Core
  • Infrastructure designed for reuse across multimodal sessions with agents and CloudPC/CUA workloads, supporting scenarios for Digital Employee, W365A, Dynamics, and Researcher
  • By balancing real-time and offline processing, we can deliver richer meeting intelligence at a fraction of today’s cost, making it accessible and actionable for Copilot and agents throughout the Microsoft ecosystem
What we offer
What we offer
  • Certain roles may be eligible for benefits and other compensation
  • Fulltime
Read More
Arrow Right

Senior Software Engineer

3P Copilot Extensibility team builds the platform that powers Microsoft 365 Copi...
Location
Location
India , Hyderabad
Salary
Salary:
Not provided
https://www.microsoft.com/ Logo
Microsoft Corporation
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • 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
  • Experience designing, building, and operating distributed systems or cloud-scale services
  • Depth in APIs, microservices, cloud security, and service reliability engineering
Job Responsibility
Job Responsibility
  • Design and build robust services powering agent runtime, agent capabilities, and extensibility surfaces
  • Contribute to high scale backend systems that support agent knowledge integration, grounding, and lifecycle management
  • Lead design and implementation of features that expand the agent and MCP-based platform
  • Partner with cross company teams across Microsoft 365, M365 Substrate, and Copilot to align architectural patterns and platform coherence
  • Elevate code quality, testing rigor, resiliency, and operational readiness
  • Instrument services with telemetry, diagnostics, and observability to guide data driven evolution of the platform
  • Improve endtoend performance of agent experiences across web, desktop, and mobile
  • Identify gaps and opportunities in the agent developer ecosystem
  • influence roadmap for SDKs, toolchains, and runtime improvements
  • Mentor junior engineers, drive code reviews, and foster a culture of engineering excellence
  • Fulltime
Read More
Arrow Right

Senior Software Engineer

Are you passionate about building intelligent, scalable systems that power next-...
Location
Location
United States , Redmond
Salary
Salary:
119800.00 - 234700.00 USD / Year
https://www.microsoft.com/ Logo
Microsoft Corporation
Expiration Date
Until further notice
Flip Icon
Requirements
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
  • Ability to meet Microsoft, customer and/or government security screening requirements
  • Microsoft Cloud Background Check: This position will be required to pass the Microsoft Cloud background check upon hire/transfer and every two years thereafter
  • 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
  • 3+ years of experience in service development, successfully shipping software across multiple releases in a SaaS environment
  • 2+ years of experience delivering complex projects at scale
  • 3+ years of professional working experience in C#, .NET, or equivalent languages and frameworks
  • 3+ years of professional working experience with Azure or other cloud platforms
  • 1+ years experience with Power Platform, M365 extensibility, and conversational AI systems
  • 1+ years experience understanding of identity, access control, and secure service design
Job Responsibility
Job Responsibility
  • Lead architecture, design and implementation of scalable, reliable, and secure services in the Copilot Studio Control Plane
  • Collaborate with Product Managers, designers, architects, and other engineers to develop an AI-first platform to scale agent adoption across various Microsoft platforms like M365 Copilot, Dynamics, and Power Platform
  • Collaborate with cross-functional teams to define and deliver end-to-end scenarios that span Azure, M365, and Power Platform ecosystems
  • Mentor and guide engineers across the team, fostering a culture of technical excellence, inclusion, and continuous learning
  • Actively contribute to livesite improvement and maintenance
  • Define and champion engineering best practices, including CI/CD, observability, and operational excellence
  • Fulltime
Read More
Arrow Right

Senior Software Engineer

Come be part of the team that’s redefining how people stay productive on mobile....
Location
Location
India , Hyderabad
Salary
Salary:
Not provided
https://www.microsoft.com/ Logo
Microsoft Corporation
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • 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
  • Proven track record of delivering high-quality software or mobile applications at scale, from initial design through release
  • Hands-on experience with mobile development on Android and/or iOS – understanding of mobile UX paradigms, performance constraints, and platform ecosystems
  • Excellent problem-solving and debugging skills, with the ability to quickly pick up new technologies and ramp up on complex existing codebases
  • Strong collaboration and communication skills – able to work effectively across team boundaries, build trust with diverse stakeholders, and clearly articulate technical ideas and outcomes
  • Quality mindset with attention to detail – demonstrated ability to write maintainable code, create unit/integration tests, and use telemetry or feedback to continually refine and improve a product
Job Responsibility
Job Responsibility
  • Design, develop, and deliver new features and improvements in the M365 Copilot Mobile app across Android and iOS, maintaining a high bar for quality, performance, and user experience
  • Drive a mobile-first approach for Copilot experiences
  • Collaborate across disciplines — partner closely with program managers, designers, data scientists, and global engineering teams to define requirements, align on designs, and deliver end-to-end, user-centric features
  • Write clean, maintainable, and high-performance code across multiple languages and frameworks (e.g., Swift/Objective-C, Kotlin/Java, C/C++). Contribute to shared libraries and ensure cross-platform consistency in feature implementation
  • Leverage data and insights — instrument telemetry and analytics into features, analyze user engagement, crash reports, and telemetry signals, and iterate quickly to enhance Copilot’s effectiveness, retention, and user satisfaction
  • Optimize performance and reliability — debug and resolve complex issues across the stack (client, service integrations, OS interactions) to meet ambitious goals such as sub-second app launch (P95) and >99.5% crash-free sessions, ensuring a smooth, dependable experience
  • Practice customer obsession — build with empathy for both enterprise and consumer users. Incorporate real-world feedback to deliver a frictionless onboarding and delightful daily experience that consistently exceeds expectations
  • Champion engineering excellence and team culture — participate in code reviews, share best practices, mentor junior engineers, and help foster an inclusive, collaborative environment where everyone can do their best work
  • Fulltime
Read More
Arrow Right