The Mission

Wallee Group is a leader in advanced payment solutions, dedicated to providing robust, scalable, and secure systems across multiple domains. We enhance customer experiences through innovative payment and finance technology that empowers businesses to grow efficiently. With operations spanning several countries, we thrive on collaboration and agility, utilizing the Scrum framework to drive our international teams. At Wallee, we stay at the forefront of market trends, continuously innovating to deliver premier services to our global customers.

The Role

To achieve our mission of providing the market's best payment experience, Wallee is seeking experienced and versatile software engineers for our Hamburg office. As disruptors in the payment space, we build industry-leading systems that demand the highest standards of security and reliability. We are constantly pushing our solutions into new territories, and we are looking for engineers who thrive in a fast-paced, agile environment to help us redefine the future of finance.

Tasks

The Impact You’ll Make

• 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 Bring to the Table

• 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

Why Join Wallee?

• 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.

Don’t tick every box? Neither do most great hires. If the role feels right, reach out, we’d love to see if we’re a match.