Android Engineer

Wallee Group

Experienced Android Engineer developing secure, efficient payment solutions at Wallee Group in Hamburg. Collaborate in a hybrid work environment to redefine finance technology.

Posted 5/9/2026full-timeHamburg • 🇩🇪 GermanyMid-LevelSeniorWebsite

Tech Stack

Tools & technologies

AndroidCloudCyber SecurityJavaKotlinTypeScript

About the role

Key responsibilities & impact

Engineer the Core: Develop and optimize our terminal software, evolving SDKs and cloud network protocols to ensure a seamless "tap-and-pay" experience.
Champion Security: Navigate the complexities of payment card compliance (PCI), researching and implementing cryptographic solutions that keep data ironclad.
Bridge the Gap: Partner with Product Engineering to turn ambitious user stories into technical reality, ensuring every feature is feasible and performant.
Lead by Example: Act as a technical advisor for our SDKs and APIs, mentoring 3rd-level support and maintaining high standards through rigorous code reviews.
Focus on Reliability: Take ownership of complex troubleshooting to ensure our global payment systems remain resilient and highly available.

Requirements

What you’ll need

Android Mastery: Strong command of Kotlin and Java, with the ability to deliver secure, well-documented, and scalable solutions for the Android platform.
Security Mindset: A solid grasp of cybersecurity fundamentals, you know your way around symmetric/asymmetric ciphers and cryptographic hashes.
Network Fluency: Real-world experience with TCP, HTTP, and TLS protocols.
Quality First: You don't just "fix" things; you write readable, documented, and unit-tested code that lasts.
Technical Asset: A strong command of TypeScript is highly valued.
Communication: Professional fluency in English and a collaborative spirit.

Benefits

Comp & perks

Modern Workspace: A beautiful office in the heart of Hamburg - comfortable, bright, and collaboration-ready.
True Flexibility: We embrace a hybrid way of working with 3 days per week in our office to foster collaboration, complemented by flexible daily hours and a 4-week "Work from Anywhere" policy every year.
Innovation First: We work with the latest tech stacks in a flat hierarchy where your voice actually matters.
Growth & Culture: Competitive compensation, aligned with your experience, seniority, and technical expertise, personal development budgets , and a social calendar filled with events.
The Perks: Fresh fruits, snacks, and high-quality coffee to keep you fueled.

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

KotlinJavaTypeScriptcryptographic solutionssymmetric ciphersasymmetric cipherscryptographic hashesTCPHTTPTLS

Soft Skills

communicationcollaborationmentoringtroubleshootingcode reviews