Senior Software Engineer - Web Shared UX

📍 Job Overview

Job Title: Senior Software Engineer - Web Shared UX

Company: Microsoft

Location: Redmond, Washington, United States

Job Type: FULL_TIME

Category: Software Engineering / Front-End Development

Date Posted: April 02, 2026

Experience Level: 5-10 Years (Senior)

Remote Status: Hybrid (3 days in office)

🚀 Role Summary

• Design, develop, and maintain customer-facing front-end UX components and shared systems that power Copilot experiences across Microsoft 365 web applications, ensuring a consistent and high-quality user experience.

• Collaborate closely with Design, Product Management, and partner engineering teams to translate product intent and user needs into production-ready, accessible, and reliable UI features at massive scale.

• Contribute to and leverage shared UX libraries, such as Fluent UI, to ensure consistent branding, accessibility standards (WCAG, ARIA), and high visual quality across diverse Office surfaces.

• Drive engineering excellence through writing clean, maintainable, and well-tested code, with a strong focus on performance, reliability, and long-term system ownership, including participation in on-call rotations for critical shared web experiences.

📝 Enhancement Note: This role is positioned as a Senior Software Engineer within the Web Shared UX team at Microsoft, focusing on the foundational front-end experiences for Copilot across Microsoft 365 web applications. The emphasis on "shared UX" and "component systems" indicates a strategic role in building reusable, scalable UI elements that impact millions of users. The inclusion of AI integration suggests a forward-looking approach to development.

📈 Primary Responsibilities

• Build, ship, and maintain robust front-end UX features and reusable shared components that are integral to Copilot experiences within Microsoft 365 web applications.

• Actively contribute to and utilize established shared UX libraries, such as Microsoft's Fluent UI, to enforce design consistency, adhere to web accessibility standards (e.g., WCAG, ARIA), and ensure a high level of visual polish across all implemented surfaces.

• Partner strategically with Design and Product Management teams to meticulously translate design specifications and product vision into high-quality, production-ready user interfaces and interactive experiences.

• Foster strong collaboration with engineers across various Office Shared and application-specific teams to seamlessly integrate shared UX systems and workflows, ensuring smooth adoption and compatibility.

• Author clean, maintainable, and thoroughly tested code, with a keen focus on optimizing performance, ensuring system reliability, and promoting long-term code ownership and understandability.

• Participate actively in the team’s on-call rotation, contributing to the health, availability, and rapid recovery of critical shared web experiences, ensuring minimal user disruption.

• Champion and contribute to a culture of engineering excellence, including conducting thoughtful code reviews, promoting best practices, and actively participating in continuous improvement initiatives within the team.

📝 Enhancement Note: The responsibilities highlight a blend of individual contribution (coding, testing, ownership) and collaborative effort (partnering with Design/PM, integrating with other teams). The emphasis on "shared components" and "shared UX libraries" points towards a role focused on platform-level development rather than isolated feature work. Participation in on-call rotation is a standard expectation for senior engineers maintaining critical production systems.

🎓 Skills & Qualifications

Education:

• Bachelor's Degree in Computer Science or a related technical field.

Experience:

• Minimum of 4+ years of technical engineering experience with strong coding proficiency in languages such as C, C++, C#, Java, JavaScript, or Python.

• 4+ years of hands-on experience with React and modern web development practices.

• Preferred: 6+ years of technical engineering experience with a Master's degree, or 8+ years with a Bachelor's degree.

• Preferred: 4+ years of experience building and maintaining shared libraries or component systems.

• Experience in building highly available and scalable systems.

• Experience with web accessibility standards (WCAG, ARIA) and implementing accessible components.

• Experience managing the full lifecycle of component development, from initial conception through to production deployment.

Required Skills:

• Proficiency in React for building dynamic and interactive user interfaces.

• Strong command of modern JavaScript and front-end development best practices.

• Experience with TypeScript for enhanced code quality and maintainability in production applications.

• Solid understanding of web accessibility standards (WCAG, ARIA) and experience implementing accessible components.

Preferred Skills:

• Experience with Fluent UI or similar component library frameworks.

• Demonstrated experience building and maintaining shared component systems or UI libraries.

• Familiarity with using AI/ML to boost development productivity or create scalable solutions.

• Experience with cloud-based development environments and practices.

• Knowledge of performance optimization techniques for web applications.

📝 Enhancement Note: The qualifications clearly delineate between essential requirements and preferred attributes. The emphasis on React, TypeScript, and web accessibility, coupled with experience in shared component systems, strongly indicates a focus on building robust, reusable UI elements. The inclusion of AI/ML experience as a preferred skill suggests the team is exploring or already integrating AI into their processes or products. The experience level requirement (4+ years with a Bachelor's, escalating with advanced degrees) aligns with a Senior Engineer role.

📊 Process & Systems Portfolio Requirements

Portfolio Essentials:

• Demonstrate experience in building and delivering complex front-end features for large-scale web applications, showcasing end-to-end ownership from conception to production.

• Provide examples of contributions to shared component libraries or UI systems, highlighting the impact of reusability and consistency across multiple applications or user surfaces.

• Showcase projects that adhere to stringent web accessibility standards (WCAG, ARIA), illustrating a deep understanding and practical application of inclusive design principles.

Process Documentation:

• Illustrate your approach to writing clean, maintainable, and well-tested code, potentially through code samples or descriptions of your testing methodologies (e.g., unit, integration, end-to-end testing).

• Detail your experience with collaborative development workflows, including participation in code reviews, version control (e.g., Git), and working within Agile/Scrum methodologies.

• Present examples of how you have contributed to system reliability and performance optimization, such as debugging complex issues, implementing performance improvements, or participating in on-call rotations.

• Document your understanding of front-end architecture, particularly concerning the design and implementation of scalable and reusable UI systems.

📝 Enhancement Note: For a Senior Software Engineer role, especially one focused on shared components, a portfolio demonstrating practical application of skills is crucial. The emphasis should be on impact, reusability, and adherence to standards like accessibility. Documenting processes related to code quality, collaboration, and system reliability provides insight into the candidate's engineering maturity.

💵 Compensation & Benefits

Salary Range:

• The typical base pay range for this role across the U.S. is USD $119,800 - $234,700 per year.

Benefits:

• Comprehensive health, dental, and vision insurance plans.

• Retirement savings plans, such as a 401(k) with company match.

• Generous paid time off (PTO), including vacation, sick leave, and holidays.

• Parental leave and family-friendly benefits.

• Opportunities for professional development, training, and tuition reimbursement.

• Employee stock purchase program and potential for performance-based bonuses.

Working Hours:

• Standard full-time work week, typically 40 hours per week.

• Hybrid work arrangement requiring 3 days per week in the Redmond, WA office, offering flexibility for remote work planning.

• Flexibility in scheduling around core business hours, accommodating team collaboration needs and personal commitments.

📝 Enhancement Note: The salary ranges provided are specific to U.S. locations, with distinct higher ranges for the San Francisco Bay area and New York City, reflecting regional cost of living and market demand. The benefits listed are standard for large tech companies like Microsoft, aiming to attract and retain top talent. The hybrid work model is clearly defined.

🎯 Team & Company Context

🏢 Company Culture

Industry: Software & Technology, Cloud Computing, Artificial Intelligence, Productivity Software.

Company Size: Enterprise-level, with over 221,000 employees globally.

Founded: April 4, 1975. Microsoft is a long-standing leader in the technology sector, known for its innovation in operating systems, productivity software, cloud services, and increasingly, AI.

Team Structure:

• The Web Shared UX team is part of the broader Office Shared Experiences group, focusing on foundational front-end development.

• The team likely operates with a mix of individual contributors (IC) and potentially team leads or managers, fostering a collaborative environment.

Methodology:

• Data-Driven Development: Decisions are informed by user data, A/B testing, and performance metrics to ensure optimal user experiences and system efficiency.

• Agile Development: The team likely employs Agile methodologies (e.g., Scrum, Kanban) for iterative development, rapid feedback loops, and continuous delivery.

• Engineering Excellence: A strong emphasis on code quality, robust testing, performance optimization, and long-term maintainability is expected, aligning with Microsoft's broader engineering culture.

• AI Integration: The team is actively exploring and implementing AI to enhance development productivity and user-facing features, reflecting Microsoft's strategic investment in AI.

Company Website: https://www.microsoft.com/

📝 Enhancement Note: Microsoft's culture is characterized by a growth mindset, empowerment, and collaboration. For this role, the culture emphasizes UX craftsmanship, cross-disciplinary work, and ownership of foundational systems. The "Web Shared UX" team likely operates with a high degree of technical rigor and a focus on impact at scale.

📈 Career & Growth Analysis

Operations Career Level: This role is classified as a Senior Software Engineer (IC4 level). It signifies a mid-to-senior level individual contributor role, expected to take ownership of significant features or systems, mentor junior engineers, and contribute to architectural decisions.

Reporting Structure: Typically, Senior Software Engineers report to a Software Engineering Manager or a Principal Software Engineer within their specific team (Web Shared UX). They work closely with Product Managers and Designers on a day-to-day basis.

Operations Impact: The Web Shared UX team's work directly impacts the user experience of millions of Microsoft 365 users worldwide. By building foundational components for Copilot, this role has a significant influence on how users interact with AI-powered features across critical applications like Word, Excel, and PowerPoint on the web, directly contributing to user productivity and satisfaction.

Growth Opportunities:

• Technical Specialization: Deepen expertise in front-end technologies, component systems, web accessibility, and potentially AI integration within UX.

• Leadership Development: Progress to Principal Software Engineer, Software Engineering Lead, or Managerial roles, taking on more architectural or people management responsibilities.

• Cross-Team Mobility: Opportunities to move into different product teams within Microsoft, leveraging acquired skills in areas like cloud services, AI platforms, or other application domains.

• Continuous Learning: Access to Microsoft's extensive internal training resources, external conferences, and opportunities to work with cutting-edge technologies.

📝 Enhancement Note: The "Senior" title and IC4 level indicate a role with significant responsibility and autonomy. Growth in this position can lead towards deeper technical mastery, architectural leadership, or management tracks, leveraging Microsoft's structured career development pathways. The impact is substantial due to the scale of Microsoft 365 and the growing importance of AI integration.

🌐 Work Environment

Office Type: Microsoft operates large, modern office campuses designed to foster collaboration and innovation. The Redmond campus is a significant hub for engineering and product development. The work environment supports a hybrid model, blending in-office collaboration with remote flexibility.

Office Location(s): The primary office location is Redmond, Washington, USA. Microsoft's Redmond campus is extensive and houses numerous facilities, including research labs, collaboration spaces, cafes, and fitness centers.

Workspace Context:

• The workspace is designed for collaboration, with open areas, meeting rooms, and dedicated project spaces.

• Engineers have access to high-performance hardware, development tools, and a robust internal network infrastructure.

• Opportunities for informal and formal interactions with team members, cross-functional partners, and other engineers across the campus are abundant.

Work Schedule: The role adheres to a standard full-time schedule, with flexibility to manage working hours around core collaboration times. The hybrid model requires employees to be in the office for a minimum of 3 days per week, allowing for dedicated in-office collaboration sessions and focused remote work.

📝 Enhancement Note: The hybrid work model is a key aspect, requiring employees to be physically present in the Redmond office for a significant portion of the week. This suggests a culture that values in-person collaboration for certain types of work, such as brainstorming, complex problem-solving, and team building, while still offering flexibility.

📄 Application & Portfolio Review Process

Interview Process:

• Initial Screening: Recruiter call to assess basic qualifications, interest, and cultural fit.

• Technical Phone Screen: An interview focused on coding challenges, data structures, algorithms, and potentially system design concepts, often involving a shared coding environment.

• On-site/Virtual Interviews (Loop): A series of interviews (typically 4-5) covering:

  • Coding/Problem Solving: Live coding exercises, often with a focus on front-end scenarios or algorithmic challenges.
  • System Design: Designing scalable and maintainable systems, potentially focusing on front-end architecture or component systems.
  • Behavioral/Leadership: Questions assessing collaboration, problem-solving approach, handling conflict, and alignment with Microsoft's values and culture.
  • Domain-Specific: Questions related to web development, React, accessibility, and potentially AI integration.

• Hiring Manager Discussion: Final discussion to align on role expectations and team fit.

Portfolio Review Tips:

• Curate Select Projects: Focus on 2-3 impactful projects that best demonstrate your skills in React, TypeScript, shared component development, and accessibility.

• Highlight Impact & Scale: For each project, clearly articulate the problem you solved, your specific contributions, the technologies used, and the measurable impact (e.g., performance improvements, user adoption, efficiency gains). Quantify results whenever possible.

• Showcase Reusability: If you have experience with shared libraries or component systems, dedicate a section to explaining your approach to designing for reusability, maintainability, and extensibility.

• Demonstrate Accessibility: Explicitly detail your understanding and implementation of WCAG and ARIA standards in your projects. Show examples of accessible UI patterns.

• Prepare to Discuss Code: Be ready to walk through code snippets, explain design choices, and discuss trade-offs made during development.

Challenge Preparation:

• Practice LeetCode-style problems: Focus on algorithms, data structures, and front-end specific challenges.

• Prepare System Design Case Studies: Practice designing scalable front-end architectures, component libraries, or features that handle large user bases. Consider trade-offs in performance, scalability, and maintainability.

• Behavioral Question Framework: Use the STAR method (Situation, Task, Action, Result) to structure answers to behavioral questions, focusing on examples that highlight collaboration, problem-solving, and leadership.

• Understand Microsoft's Culture: Research Microsoft's core values, growth mindset, and the specific mission of the Copilot and Office Shared UX teams.

📝 Enhancement Note: Microsoft's interview process is rigorous, emphasizing both technical proficiency and cultural alignment. A strong portfolio demonstrating practical skills in React, shared components, and accessibility, coupled with preparedness for coding and system design challenges, is essential for success.

🛠 Tools & Technology Stack

Primary Tools:

• React: The core JavaScript library for building user interfaces.

• TypeScript: Used for strong typing, enhancing code quality and maintainability in large-scale applications.

• JavaScript (ES6+): Fundamental language for web development.

• HTML5 & CSS3: Standard web technologies for structure and styling.

• Node.js & npm/Yarn: For build processes, package management, and local development environments.

• Fluent UI: Microsoft's own design system and React component library, heavily utilized by the team.

Analytics & Reporting:

• Internal Telemetry/Analytics Platforms: Likely custom Microsoft tools for tracking user behavior, performance metrics, and feature adoption across applications.

• Application Performance Monitoring (APM) Tools: To monitor the health and performance of web applications in production.

CRM & Automation:

• While not a direct CRM role, understanding how front-end components integrate with backend services and potentially data platforms is key.

• Version Control: Git (likely using Azure DevOps or GitHub internally) for source code management and collaboration.

• CI/CD Pipelines: Azure DevOps or similar tools for automated build, testing, and deployment processes.

📝 Enhancement Note: The technology stack is heavily focused on modern front-end web development, with a strong emphasis on React and TypeScript. The use of Fluent UI is a critical component, and familiarity with Microsoft's internal development ecosystem (like Azure DevOps) is beneficial.

👥 Team Culture & Values

Operations Values:

• Customer Focus: Prioritizing user needs and delivering exceptional, accessible, and reliable experiences.

• Growth Mindset: Embracing challenges, learning from failures, and continuously seeking improvement in skills and processes.

• Inclusion: Valuing diverse perspectives and ensuring that all user experiences are accessible and equitable.

• Collaboration: Working effectively across disciplines and teams to achieve shared goals.

• Engineering Excellence: Committing to high standards of code quality, performance, and maintainability.

Collaboration Style:

• Cross-Functional Partnership: Close working relationships with Design, Product Management, and other engineering teams are essential for integrating shared UX components effectively.

• Open Communication: Encouraging transparent feedback, active listening, and constructive dialogue during code reviews and team discussions.

• Knowledge Sharing: Proactively sharing learnings, best practices, and technical insights through documentation, presentations, and informal discussions.

• Iterative Feedback Loops: Regularly seeking and incorporating feedback from stakeholders and users to refine features and systems.

📝 Enhancement Note: The team culture aligns with Microsoft's broader corporate values, emphasizing collaboration, user-centricity, and continuous improvement. For this role, the ability to work effectively in a cross-functional environment and contribute to a culture of engineering excellence is paramount.

⚡ Challenges & Growth Opportunities

Challenges:

• Scale and Complexity: Building and maintaining shared UX components that must perform reliably across a vast array of Microsoft 365 web applications, each with unique requirements and integration points.

• Cross-Team Dependencies: Navigating complex dependencies and ensuring seamless integration with numerous partner teams, each with its own priorities and release cycles.

• Evolving AI Landscape: Integrating AI capabilities into UX components while ensuring performance, accessibility, and user trust, keeping pace with rapid advancements in AI technology.

• Maintaining Consistency: Ensuring a consistent and high-quality user experience across diverse platforms and applications, while allowing for necessary customization and adaptation.

Learning & Development Opportunities:

• Advanced Front-End Technologies: Deep dive into cutting-edge front-end frameworks, performance optimization techniques, and modern web standards.

• AI Integration in UX: Gain hands-on experience applying AI/ML to enhance user interfaces and development workflows.

• System Architecture: Develop a deeper understanding of large-scale distributed systems and front-end architecture patterns.

• Leadership and Mentorship: Opportunities to mentor junior engineers, lead technical initiatives, and contribute to architectural decisions.

• Industry Exposure: Attend industry conferences and internal Microsoft events to stay abreast of the latest trends in web development and AI.

📝 Enhancement Note: The challenges presented are typical for senior roles in large tech companies dealing with complex, scaled products. The growth opportunities are substantial, offering paths for both deep technical specialization and broader leadership development within Microsoft's extensive ecosystem.

💡 Interview Preparation

Strategy Questions:

• "Describe a complex front-end feature you built using React. What were the key challenges, and how did you ensure scalability and maintainability?" (Focus on technical approach, problem-solving, and understanding of best practices.)

• "How would you design a reusable component library for a large organization like Microsoft? What are the critical considerations for consistency, accessibility, and adoption?" (Assess system design thinking, understanding of component-based architecture, and UX principles.)

• "Tell me about a time you had to collaborate with designers or product managers who had different visions. How did you reach a resolution?" (Evaluate collaboration, communication, and negotiation skills.)

Company & Culture Questions:

• "What interests you about Microsoft's mission and the work of the Web Shared UX team, particularly regarding Copilot?" (Demonstrate research and genuine interest in the company and role.)

• "How do you embody a growth mindset in your work?" (Provide specific examples of learning from challenges or feedback.)

Portfolio Presentation Strategy:

• Storytelling: Frame each project as a narrative: the problem, your solution, the challenges faced, and the impactful outcome.

• Visuals: Use clear diagrams, screenshots, and potentially short demos (if applicable and permitted) to illustrate your work.

• Quantify Impact: Wherever possible, use metrics to demonstrate the success of your projects (e.g., "reduced load time by 20%", "increased user engagement with feature X by 15%", "implemented accessibility improvements adopted by 10+ teams").

• Focus on Your Role: Clearly articulate your specific contributions, especially in team projects.

• Be Prepared for Deep Dives: Anticipate questions about your code, design decisions, trade-offs, and alternative approaches.

📝 Enhancement Note: Preparation should focus on demonstrating not just technical skill but also the ability to collaborate, solve complex problems, and align with Microsoft's culture and values. A well-prepared portfolio presentation is key to showcasing practical experience effectively.

📌 Application Steps

To apply for this Senior Software Engineer position:

• Submit Your Application: Navigate to the Microsoft Careers portal and submit your resume and any requested supplementary materials through the provided link.

• Tailor Your Resume: Ensure your resume highlights specific experience with React, TypeScript, front-end development, web accessibility, and experience with shared component systems or libraries. Use keywords from the job description to align with ATS scanning.

• Prepare Your Portfolio: Curate 2-3 of your strongest projects that showcase your skills in the required areas. Be ready to discuss the technical details, your contributions, and the measurable impact of these projects. Focus on examples of reusable components and accessibility implementation.

• Practice Coding Challenges: Dedicate time to practicing algorithm and data structure problems, as well as front-end specific coding exercises. Familiarize yourself with environments like LeetCode or HackerRank.

• Research Microsoft & Copilot: Understand Microsoft's mission, values, and the strategic importance of Copilot within their product ecosystem. Prepare thoughtful questions about the team's work and culture.

⚠️ Important Notice: This enhanced job description includes AI-generated insights and operations industry-standard assumptions. All details should be verified directly with the hiring organization before making application decisions.