Mid Level Java Engineer

Wallee Group is a leader in delivering advanced payment solutions, focusing on providing robust, scalable, and secure systems across multiple domains. We are dedicated to enhancing customer experiences by offering innovative payment and finance systems that support businesses in growing efficiently. Our operations span across multiple countries, and we thrive on collaboration and agility, using frameworks like Scrum to organize teams. At Wallee, we aim to stay at the forefront of market trends, continuously innovating to provide the best services to our customers.

We are recruiting for our office in Vilnius and are looking for our new team member to join us on January 4, 2027.

Key responsibilities

• Design, develop and maintain integrations for our payment systems and local acquiring platforms.
• Write clean, maintainable, and well-documented code in collaboration with your team of engineers.
• Debug, troubleshoot, and resolve technical issues. Participate in operational work when needed.
• Work with frameworks like Spring and Hibernate to build and maintain our systems.
• Contribute to performance enhancements and scalability.
• Collaborate with cross-functional teams to implement new features and solutions.
• Perform code reviews, design reviews, architecture reviews.
• Build business knowledge around the payment industry and Wallee specific products.
• Boost your productivity using available AI tools.

Qualifications

We seek someone curious, eager to grow, and active in contributing to our team. You must have:

• At least 3 years of proven working experience in Java development.
• A Bachelor’s degree or Masters Degree in Computer Science, Software Engineering, or a related field (or relevant experience).
• Good knowledge of Java programming and object-oriented principles.
• Experience with SQL and relational databases (e.g., PostgreSQL, MySQL).
• A good knowledge of version control systems like Git.
• A good knowledge of build tools like Maven or Gradle.
• A good knowledge of Spring and JPA.
• A good understanding of REST APIs.
• Strong problem-solving skills and attention to detail.
• Good communication skills in English (written and spoken).
• Serious, responsible and autonomous.
• Sociable and easy to work with.

Bonus points

While not required, the following skills and experiences would make you stand out:

• Knowledge of microservices architecture.
• Knowledge of DDD principles.
• Experience with front end technologies (HTML, CSS, JavaScript, Typescript, React).
• Knowledge of containerisation tools like Docker and Kubernetes.
• Experience with testing frameworks such as Playwright.
• Interest in secure coding practices and payment technologies.

What we offer

• Modern Workspace: A beautiful office in the heart of Vilnius - 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, in the range of €3,500 – €4,500 gross/month, depending on 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.