Java Engineer

We are currently seeking an Java Engineer to join our team on a full-time B2B remote basis, working with one of the largest payment processing companies in the market, a leading fintech player powering high-volume, mission-critical platforms.

As an Java Engineer, you will:

• Design and develop secure, robust payment gateway integrations with leading providers
• Build innovative payment solutions for specialized industries (petrol stations, retail, and beyond)
• Develop scalable RESTful APIs capable of handling high-volume transaction processing
• Architect and maintain microservices using Java, Spring Boot, and modern cloud technologies
• Implement event-driven architectures with RabbitMQ for real-time payment processing
• Deploy and orchestrate services on Kubernetes for high reliability and scalability
• Utilize Protobuf for efficient inter-service communication
• Contribute to data pipelines and analytics infrastructure to support business insights
• Work closely with product and business teams to translate requirements into scalable solutions
• Participate in agile processes and contribute to continuous improvement
• Ensure code quality through testing (JUnit, Mockito) and DevOps best practices

WHAT WE'RE LOOKING FOR

• Strong backend development experience with Java and Spring Boot
• Solid understanding of database design and RESTful API architecture
• Hands-on experience with Kubernetes and containerized environments
• Experience with messaging systems (RabbitMQ or similar)
• Proficiency with Protobuf for microservices communication
• Strong testing mindset with JUnit and Mockito
• Experience with analytics, reporting, or Data Lakes
• Familiarity with Agile development and DevOps practices
• Fluent English communication skills
• EU residency and B2B work eligibility

Nice-to-Have:

• Experience with payment systems, gateways, or fintech platforms
• Exposure to PCI-DSS compliance and financial data security