Senior Frontend Architect & Technical Leader

On; Zürich; On-site; CHF 150,000 - 210,000; Full time

Job summary

On in Zurich seeks a senior frontend engineering leader to anchor frontend architecture within a cross‑functional incubator spanning product, design, strategy and engineering. You will drive technical direction across web and mobile platforms, balancing hands‑on craft with architectural leadership from ideation to production‑grade systems.

You will mentor engineers, shape the product roadmap with cross‑functional partners, and elevate system design, accessibility and performance while

Qualifications

• 6+ years designing, deploying, and supporting production web and mobile apps with strong system architecture.
• Experience leading frontend strategy and autonomous execution across cross‑functional teams.
• Mentor engineers and foster an inclusive engineering culture with modern workflows and tooling.
• Proficiency in TypeScript, React, Flutter, Swift or Kotlin, and API federation (GraphQL APOLLO).
• Experience guiding platforms through architectural shifts (e.g., Flutter to React) with minimal downtime.
• Strong English communication and collaboration across product, design and strategy.

Responsibilities

• Own web and mobile frontend architecture for the platform and deliver end‑to‑end initiatives with high autonomy.
• Mentor engineers and promote architectural excellence, accessibility, and performance.
• Steer cross‑team alignment by sharing reusable patterns and architectural frameworks.
• Partner with Product, Design and Strategy to evaluate feasibility and shape the roadmap.
• Define benchmarks for system design, code health, and observability, including transitioning legacy frameworks.

Skills

Frontend architecture

Mentorship

Cross-functional leadership

TypeScript

React

Flutter

Swift / Kotlin

Education

Computer Science degree

Tools

TypeScript

React

Next.js

Flutter

Swift

Kotlin

Job description

On in Zurich seeks a senior frontend engineering leader to anchor frontend architecture within a cross‑functional incubator spanning product, design, strategy and engineering. You will drive technical direction across web and mobile platforms, balancing hands‑on craft with architectural leadership from ideation to production‑grade systems.

You will mentor engineers, shape the product roadmap with cross‑functional partners, and elevate system design, accessibility and performance while