Relai AG

Relai is Europe's leading Bitcoin App - made in Switzerland!

Relai's Bitcoin-only app is designed to be simple and intuitive, allowing anyone to buy and sell Bitcoin within minutes. Relai stands out in the crowded cryptocurrency market with its unique approach to self-custody. Unlike other platforms, Relai does not hold user funds; instead, it empowers users to control their financial futures with an easy-to-use self-custodial wallet. Relai is a Swiss-licensed financial service provider with over $850 million in trading volume, founded in 2020 in Zurich by Julian Liniger and Adem Bilican. In 2024, Relai was named one of the fastest-growing startups in Europe by Sifted, and the company is regularly listed among the top 50 Swiss startups.

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24.10.2025

Relai: MiCA license opens a gateway to Europe (startupticker.ch)

21.05.2025

Convincing technologies garner prizes (startupticker.ch)

Milestone

01.05.2025

500k App Downloads

Milestone

15.12.2024

450k App Downloads

Milestone

01.05.2024

360k App Downloads

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Senior React-Native Developer

Software Development / Fulltime

The Senior React?Native Developer at Relai is responsible for designing, building, and maintaining high?quality mobile applications for both iOS and Android using React Native. You will collaborate with backend engineers to implement robust interfaces, optimize app performance, and ensure comprehensive testing and code quality. The role includes mentoring other developers, participating in code reviews, and contributing to the evolution of the product within a fully remote, agile team focused on Bitcoin?related financial technology.

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Senior Web Developer

Software Development / Fulltime

The Senior Web Developer at Relai is responsible for building and maintaining high?quality, scalable web applications using React and TypeScript for Europe’s fastest?growing Bitcoin?only investment app. You will collaborate with designers, backend engineers, and product managers to translate UI/UX designs into performant, accessible interfaces, ensure cross?browser compatibility, and contribute to code reviews and mentoring. The role emphasizes clean, maintainable code and a product?driven mindset within a fully remote team.

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Senior go developer

Engineering / Fulltime

At Relai, we’re building the simplest and most secure way to save in Bitcoin. As a Senior Go Developer, you will play a key role in powering Relai’s mobile experience by designing and operating high-quality backend microservices in Go. You’ll work closely with product, DevOps, and QA teams to build scalable, reliable, and well-tested systems, contribute to architectural decisions for distributed services, and ensure APIs perform efficiently in production. The role combines hands-on development, performance optimization, and technical leadership in a fully remote, fast-growing Bitcoin company, where your work directly impacts how individuals and businesses grow their Bitcoin savings across Europe.

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Senior data engineer

Software Development / Fulltime

As a Senior Full-Stack Engineer at Relai, you will take ownership of the company’s internal dashboard and the data systems that power it. Your role focuses on building and maintaining backend APIs in Go, developing and evolving internal features used across multiple teams, and designing robust data structures in PostgreSQL to handle large datasets efficiently. You’ll work closely with frontend and broker teams in an agile environment, prioritizing simple, scalable solutions and clean, maintainable code. This is a high-impact role in a fully remote Bitcoin company, where your work directly supports internal operations and the delivery of a world-class Bitcoin investing experience across Europe.

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Videos

Relai Intro

TOP 100 Swiss Startup Award

The TOP 100 Swiss Startup Ranking features the 100 most promising startups that are not older than five years and are selected by a jury of early-stage investors.

Website

Venture Leaders Fintech

Website

Relai AG

Relai is Europe's leading Bitcoin App - made in Switzerland!

Headquarter:
Zürich

Foundation Date:
October 2020

Technology:

  • Fintech

Sectors:

  • Blockchain
  • Finance
  • Fintech

Support received

  • Support venture leaders
  • Support TOP 100