Simon Tschudi

Senior Software Engineer | Frontend focused

Click to reveal email Click to reveal phone Zurich, Switzerland

Summary

Senior Frontend Engineer with 10+ years experience building scalable user-facing applications and modern web architecture.

As Frontend Tech Lead at Microsoft, defined frontend direction and led core development for a GenAI-powered Marketing Copilot from MVP to launch.

Expert in React and TypeScript, focused on product design, design systems, and information architecture for complex UIs.

Committed to aesthetic and UX excellence, crafting pixel-perfect components and refined interactions.

Experienced in performance optimization, DevOps automation, and elevating engineering practices.

Passionate about mentoring, cross-functional collaboration, and continuously elevating engineering craft.

Entrepreneurial and impact-driven leader in global product teams and startups.

Deeply invested in product quality and user experience, always thinking beyond the interface.

Experience

Senior Software Engineer

Decentriq AG, CH

Oct 2025 – Present

Delivered OneLog SDK for Swiss newspapers and enhanced frontend architecture.

Senior Software Engineer

Microsoft, CH, Remote, Seattle-based team

Jun 2023 – Mar 2025

Led frontend development and served as Tech Lead for a Marketing Copilot app in Dynamics 365, establishing the frontend stack with React and TypeScript.
Emphasized intuitive, aesthetically pleasing user interactions for AI tooling, focusing on product design, design systems, and information architecture.
Transformed developer efficiency by optimizing build processes, achieved 75% faster builds by upgrading Webpack and leading migration from Yarn to pnpm, significantly boosting developer velocity.
Revolutionized testing strategies for Fluent UI components, enabling faster test creation using Jest and testing-library/react, and introducing frontend-only integration tests.
Maintained product accessibility (‘Grade C’) and ensured security by migrating pipelines to a one-branch policy template.

Software Engineer II

Microsoft, CH

Apr 2013 – Jun 2023

Significantly enhanced developer experience and productivity by optimizing Microsoft Booking’s tech stack (Webpack, HMR, code splitting), reducing local build times from 2 minutes to 20 seconds and refresh times from 1.5 minutes to ~2 seconds (Improved local build speeds by up to 6x and refresh times by ~45x).
Drove significant customer acquisition by building a Facebook Ads Manager export integration end-to-end (C# based backend), enabling daily use by a major client.
Developed key features for Dynamics 365 Customer Insights (React, TypeScript, Redux, Python) and enhanced UI/UX for Dynamics 365 Social Engagement (GWT, HTML, CSS), including a new first-party authentication flow via iframe.

Co-founder Technical & Administrative Lead

Victoria's Beauty, self-employed

Jan 2022 – Present

Co-founded and established a beauty salon, overseeing operational and strategic decisions.
Designed and built a streamlined, cost-effective website architecture for high performance and multi-language support (0.50 CHF/month running cost) using Astro.js, React, and Storyblok.
Developed custom tools (e.g., voucher card maker) to enhance efficiency and reduce operational overhead, leveraging Python within Azure Functions and PowerApps.
Integrated marketing and analytics tools for launch, including Meta Ads, Google Ads, Google Search Console, and Google Lighthouse.
Managed development and deployment workflows with Azure DevOps, Azure Cloud, Pipelines, and Webhooks.

Software Engineer & Apprenticeship

NetBreeze GmbH, CH

Aug 2008 – Mar 2013

Completed a comprehensive apprenticeship and specialized in frontend development on GWT, enhancing user experience through innovative design and implementation using Java, HTML, CSS, Highcharts, and Echo 3.

Leadership & Recognition

Provided technical leadership and architectural guidance for a new, impactful marketing application, directly influencing a team of 6 engineers and enabling rapid MVP delivery.

Facilitated seamless global collaboration between US and EU teams, significantly improving team work-life balance through efficient task handovers.

Enhanced developer satisfaction through process optimization (pnpm migration), receiving widespread positive feedback and frequently showcased in demos as a reference implementation for future teams.

Mentored a new Software Engineer from entry-level to Software Engineer II within one year, significantly accelerating their professional growth.

Drove digital strategy for a new business, achieving ~80% reduction in administrative overhead and securing ~90% of customer bookings via a highly performant website (100% Lighthouse, zero downtime) with minimal fixed costs.

Skills

Frontend & Core Development

React TypeScript JavaScript C# HTML CSS Redux Jest Data Structures Algorithms SASS/SCSS Responsive Web Design Redux Toolkit React Native Design Patterns styled-components Web Components AngularJS Vue.js Mocha Backbone.js Highcharts UML SVG Functional Programming Object Oriented Design

Tools & Platforms

Git Webpack Vite ESLint Storybook DevOps Service Worker RESTful Azure DevOps CI/CD Docker Shell Scripting NX.js AWS Node.js Microsoft Azure GraphQL WebSocket Infrastructure Cloud Computing Code Review GruntJS GitHub/GitLab

Interpersonal Skills

Mentoring Team Leadership Cross-functional Collaboration Communication Reliability Empathy Remote Team Coordination Conflict Resolution Coaching Stakeholder Engagement Initiative Resilience Organizational Planning Volunteer Commitment

Education

Advanced Federal Diploma of Higher Education

Computer Science, CH

Juventus Schulen

2020

Professional-level diploma focused on advanced software engineering principles and practical applications, equipping with in-depth knowledge of modern development practices and leadership skills in IT projects.

Higher Education

Computer Science, CH

TBZ (Technische Berufsschule Zürich)

2012

Strong foundation in software development, emphasizing practical skills in programming, problem-solving, and the fundamentals of computer science.

Commercial Diploma

HBS Handelsschule (now OST)

2008

A comprehensive business-focused program that developed essential skills in administration, finance, and communication, forming a solid base for professional growth in technical and organizational roles.

Volunteer Experience

Squad leader & Digital Strategy Lead

Turnverein Freienbach, CH

Jan 2025 – Present

Organizes Monday evening sports sessions, coordinates team events, and serves as the primary liaison for club communications and new initiatives.
Spearheading the digital strategy by developing a new, modern website and implementing tools for bookkeeping, event organization, team calendar management and more.

Lake rescuer

Seerettung Pfäffikon, CH

Jan 2022 – Jan 2024

On-call for emergency lake operations, responding to boating distress calls by serving as driver, onboard firefighter, and providing first aid in close coordination with local hospitals.

Languages

Native German speaker, fluent in English