Sr Software Engineer Mobile [US-FinTech in 🇨🇭]

Salary: CHF 125'000 - 150'000 per year

Requirements:

• 4+ years of hands-on Flutter development, shipped to production

• Full-stack capability: ReactJS on the frontend, Java and/or NodeJS on the backend

• Experience building multi-channel products, mobile and web off a shared platform

• Proven understanding of web standards, performance, security and browser internals

• Production ownership: you have run, supported and debugged what you built

• Comfortable in a mature engineering culture: code reviews, pull requests, shared design refinement

Responsibilities:

• Build and evolve the mobile experience of a white-labeled banking platform in Flutter

• Own features end-to-end

• Work directly with product

• Automate and improve data exchange between internal and external teams

Technologies:

Backend

Flutter

Frontend

Java

Mobile

NodeJS

Security

Web

React

More:

Rockstar Recruiting is exclusively building a high-caliber engineering team in Switzerland for a US-based fintech. This is a senior individual contributor role with a mobile focus, hands-on Flutter work on a white-labeled banking platform, backed by full-stack contributions where the product needs them.

The role is based in Central Switzerland and requires 3x/w onsite presence. As an international position, collaboration across time zones is expected. Please get in touch with Tijana of Rockstar Recruiting to discuss further details: [email protected]

last updated 35 week of 2026