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Microsoft Corporation Logo Microsoft Corporation · IT - Software Development

Backend Software Engineer - Intelligent Conversation and Communications Cloud

Czech Republic, Multiple Locations · Job Posted March 14, 2026
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Job Description

Microsoft 365 (M365) Intelligent Conversation and Communications Cloud (IC3) is the platform that powers billions of real-time customer conversations across several mission critical products like Teams, Skype, Copilots, Dynamics, and third-party solutions (through Azure Communication Services). The platform enables reliable and high-quality messaging, meeting, and audio/video calling services that work every time, from anywhere, seamlessly across all customer touchpoints. Conversations on our platforms are made more intelligent in real-time, empowering best-in-class productivity tools for the modern workplace where every call, meeting, or chat will make the next one better.    As a Software Engineer 2, you design, build, and operate large-scale backend services. You own features end-to-end, apply sound engineering judgment across the lifecycle (design → implementation → testing → deployment → operations), and collaborate across teams to deliver secure, reliable, diagnosable services that meet customer and business goals.

Job Responsibility

  • Design & architecture: Contribute to architecture proposals and design docs
  • evaluate tradeoffs across functionality, performance, reliability, cost (COGS), and dependencies
  • ensure designs meet security, privacy, and compliance expectations
  • Implementation & code quality: Write clean, efficient, maintainable code
  • apply best practices and patterns
  • participate in timely code reviews and raise quality through constructive feedback and coaching
  • Testing & engineering lifecycle: Define and execute a test strategy (unit/integration/security testing), improve test coverage, prevent regressions, and follow disciplined SDLC practices (estimation, reviews, bug triage, check-in, sign-off)
  • Reliability & live-site excellence: Operate and improve live services (on-call/DRI as needed)
  • use logs, telemetry, and debugging tools to investigate issues with least-privilege access
  • run retrospectives, implement repair actions, and improve TSGs/monitoring to prevent recurrence
  • Data-driven problem solving: Use telemetry and experimentation/metrics (where applicable) to validate assumptions, prioritize work, and drive customer/partner outcomes
  • Communication & collaboration: Communicate clearly and respectfully in written and oral form
  • align stakeholders across organizational boundaries to drive mutually beneficial outcomes and cohesive end-to-end experiences
  • AI‑native development: Use AI tools responsibly across the SDLC (coding, tests, analysis, documentation)
  • review and own all AI-assisted changes and apply appropriate tooling/processes

Requirements

  • Bachelor's Degree in Computer Science or related technical field AND technical engineering experience with coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, or Python OR equivalent experience
  • Proficiency in at least one OOP language (e.g., C++, C#, Java, Python)
  • Experience designing, developing, and operating backend services
  • Fundamentals in algorithms/data structures, multithreading/asynchronous processing, and networking
  • Proficiency in written, reading, and conversational English
  • Ability to meet Microsoft, customer and/or government security screening requirements
  • Microsoft Cloud Background Check

Nice to have

  • Master's Degree in Computer Science or related technical field AND 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 extensive technical engineering experience with coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, or Python OR equivalent experience
  • Cloud and DevOps experience (Azure preferred)
  • Experience improving diagnostics/monitoring, security hardening, and operational readiness at scale
  • Passion for highly scalable, highly reliable distributed systems
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