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Microsoft Corporation Logo Microsoft Corporation · IT - Software Development

Member of Technical Staff, Principal Mobile Engineer

United Kingdom, London · Job Posted January 29, 2026
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Job Description

Microsoft AI is looking for a talented Mobile Engineer (iOS or Android) to help build the next wave of capabilities for Copilot, our personalized AI assistant. We are seeking someone who brings strong technical craftsmanship alongside positive energy, empathy, and kindness, and who enjoys building world‑class consumer experiences in a fast‑paced environment. The Native Engineering team leads and builds the core Copilot experience across iOS and Android, working closely with Product Management, Design, and AI Research teams.

Job Responsibility

  • Care deeply about building outstanding, consumer‑grade mobile applications
  • Build and ship high‑quality iOS or Android applications for Copilot
  • Write well‑tested, secure, maintainable code with strong engineering fundamentals
  • Partner closely with Designers, Product Managers, and AI Researchers to turn ambiguous ideas into polished user experiences
  • Navigate ambiguity and roadblocks to deliver value to users quickly and iteratively
  • Thrive in a fast‑paced, design‑driven product development cycle
  • Embody Microsoft’s Culture and Values

Requirements

  • Bachelor’s Degree in Computer Science or a related technical field or similar experience building mobile applications
  • Strong coding experience in one or more of: iOS: Swift, Objective‑C
  • Android: Kotlin, Java
  • Experience shipping production mobile apps used by customers

Nice to have

  • Advanced degree or equivalent senior‑level industry experience
  • Experience building mobile applications from scratch
  • Strong understanding of mobile architecture, design patterns, and UI/UX principles
  • Contributions to open‑source projects
  • Excellent written and verbal communication skills
  • proven ability to work cross‑functionally
  • Passion for learning and staying current with mobile development, AI, and emerging technologies
  • Demonstrated ability to contribute to a positive, inclusive engineering culture
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