> Markdown version of [/jobs/ext/2993784-java-engineer](https://www.wearedevelopers.com/jobs/ext/2993784-java-engineer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Java Engineer - **Company:** Softup Technologies - **Location:** München, Germany - **Contract:** Permanent contract - **Skills:** Java (Programming Language), Agile Methodology, Data Analysis, Cloud Computing, Software Quality, Database Design, DevOps, Payment Systems, Protocol Buffers, Junit, Enterprise Messaging Systems, Payment Gateway, PCI Data Security Standards, RabbitMQ, Mockito, Transaction Processing (Computing), Spring-boot, Backend, Event Driven Architecture, Containerization, Data Lakes, Kubernetes, Restful APIs, Data Pipelines, Microservices - **Published:** September 19, 2026 - **Apply:** https://www.adzuna.de/details/5889557008 ## About the Role * 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 ## Description 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 ## Related Videos - [Developing the Backend with Stefan Lingler, CTO at Shpock](https://www.wearedevelopers.com/videos/100360-developing-the-backend-with-stefan-lingler-cto-at-shpock) - [From DevOps to Scaled DevOps: How We’re Rebuilding Continuous Delivery as a Platform](https://www.wearedevelopers.com/videos/100018-from-devops-to-scaled-devops-how-we-re-rebuilding-continuous-delivery-as-a-platform) - [How Unit Testing Saved My Career](https://www.wearedevelopers.com/videos/1642-how-unit-testing-saved-my-career) - [Migrating half a million users to a new payment service provider](https://www.wearedevelopers.com/videos/730-migrating-half-a-million-users-to-a-new-payment-service-provider) - [Nest.js - TypeScript in the backend can also be clean](https://www.wearedevelopers.com/videos/1033-nest-js-typescript-in-the-backend-can-also-be-clean) - [DevOps Maturity Check – a way to balance autonomy and alignment](https://www.wearedevelopers.com/videos/58-devops-maturity-check-a-way-to-balance-autonomy-and-alignment) ## Related Articles - [Backend Developer Salary in Germany [2023]](https://www.wearedevelopers.com/magazine/196-backend-developer-salary-in-germany-2023) - [The Biggest German Tech Companies](https://www.wearedevelopers.com/magazine/424-the-biggest-german-tech-companies) - [Frontend Developer Salary in Germany [2023]](https://www.wearedevelopers.com/magazine/195-frontend-developer-salary-in-germany-2023) - [Best Coding Boot Camps in Germany](https://www.wearedevelopers.com/magazine/237-best-coding-boot-camps-in-germany) - [The Most Popular IT Jobs on the Market](https://www.wearedevelopers.com/magazine/376-the-most-popular-it-jobs-on-the-market) - [Fullstack developer salary in Germany [2023]](https://www.wearedevelopers.com/magazine/197-fullstack-developer-salary-in-germany-2023)