Android POS Engineer — Build Scalable Payments Platform

Flatpay; København; On-site; DKK 550,000 - 750,000; Full time

Benefits offered by this job

On-site gym

Gamer room

Free slushice

Job summary

Flatpay is expanding its Android platform with a strong emphasis on scalable, reliable mobile experiences. As an Android Engineer, you will shape technical direction, partner with product and design, and deliver features across POS devices and printers.

You’ll work in a fast-growing European payment tech company, collaborating across markets and systems, including AWS MQTT and hardware integrations. This role suits proactive engineers who enjoy ownership and learning new fintech trends.

Qualifications

• 2–5 years of professional software engineering experience.
• Experience designing and operating distributed systems.
• Familiar with modern software engineering practices, including testing and version control.
• Curious, pragmatic, and eager to learn new technologies.
• Strong communication skills and ability to take ownership.
• Collaborative mindset and constructive challenge of ideas.
• Self-starter who can work independently or seek help when needed.
• Experience in payments, fintech, e-commerce, SaaS, or high-scale transaction systems is a plus.

Responsibilities

• Designing, building and evolving features across our Point of Sale platform platform.
• Lead feature and platform initiatives involving multiple engineers, driving delivery from discovery through production
• Build and maintain features in the Android POS platform in Kotlin/Compose that connects to printers, payment terminals and utilizes real–time communication via AWS MQTT.
• Take ownership of features from design and implementation through deployment and maintenance
• Drive architectural decisions and long-term technical improvements
• Improve reliability, observability, performance, and security across the platform
• Continuously improving our engineering practices, tooling and development experience
• Contribute to testing, operational excellence and contribute to a collaborative team culture

Skills

Kotlin

Android

Java

Jetpack Compose

MVVM

Dagger Hilt

Room

DataStore

Retrofit

AWS MQTT

JUnit

Espresso

Robolectric

GitHub Actions

Hardware integration

Tools

Android Studio

Job description

Flatpay is expanding its Android platform with a strong emphasis on scalable, reliable mobile experiences. As an Android Engineer, you will shape technical direction, partner with product and design, and deliver features across POS devices and printers.

You’ll work in a fast-growing European payment tech company, collaborating across markets and systems, including AWS MQTT and hardware integrations. This role suits proactive engineers who enjoy ownership and learning new fintech trends.