Wallee Group Tech Stack

Omnichannel payment processing via gateways and terminals

Financial Services Winterthur, Zurich 51–200 employees Privately Held

Wallee Group operates a payment platform spanning online gateways and physical terminals, built on a Java/Kotlin/Spring backend with Android clients and SAP integration. The active project list reveals a company scaling distributed terminal infrastructure—new architecture work, tap-and-pay optimization, POS logistics lifecycle management—while managing compliance and reliability challenges across payment card standards and AML/CFT regulations. Engineering hiring is accelerating across Switzerland, Lithuania, and Luxembourg, signaling capacity buildout for both product expansion and operational resilience.

Tech Stack 19 technologies

Core StackKotlin Java Hibernate JavaScript Selenium SAP TypeScript Spring Framework JPA Eclipse IntelliJ IDEA CSS HTML Appium Git Android TCP HTTP TLS

What Wallee Group Is Building

◆Challenges

Payment terminal reliability issues
Reliable delivery performance
Complex logistics flows
Payment card compliance
Global payment system resilience
Ensuring compliance with aml/cft regulations in luxembourg
Streamlining client onboarding
Monitoring onboarding pipeline

▲Active Projects

Terminal software enhancement
Payment card standard compliance
Sdks and apis training
Payment acceptance network integrations
New product architecture for distributed environment
Software applications to extend product offering
Automated test frameworks for payment terminal devices
Internal sqa community standards, documentation, and processes
Pos terminal logistics lifecycle
Terminal software optimization for tap-and-pay

Hiring Activity

Accelerating9 roles · 6 in 30d

Department

Engineering

Support

Legal

Logistics

Seniority

Mid

Senior

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About Wallee Group

Wallee Group is a privately held payment service provider based in Winterthur, Switzerland, offering omnichannel payment acceptance through an online gateway and a portfolio of payment terminals. The platform processes transactions across multiple touchpoints and geographies, requiring deep integration with acquirer networks, card rails, and merchant POS systems. With 51–200 employees, the company operates a mid-market SaaS infrastructure business: engineering teams build terminal firmware and gateway APIs; support and logistics handle merchant onboarding and device fulfillment; legal manages the AML/CFT and compliance workload endemic to fintech. Active hiring across engineering, support, and logistics indicates scaled growth in device deployment and merchant coverage.

HeadquartersWinterthur, Zurich

Company Size51–200 employees

Hiring MarketsLithuania, Switzerland, Luxembourg

Frequently Asked Questions

What tech stack does Wallee Group use?

Wallee's core backend runs on Java, Kotlin, and Spring Framework with Hibernate/JPA for persistence. Frontend uses JavaScript, TypeScript, HTML, CSS. Payment terminals use Android. Testing spans Appium and Selenium; infrastructure integrates SAP. Git for version control.

What is Wallee Group working on?

Terminal software enhancement, tap-and-pay optimization, payment card compliance work, distributed system architecture, automated test frameworks for devices, POS terminal logistics, and payment network integrations.