Senior Java Backend Developer

Do you love building fast, scalable systems that power real-world products? And are you ready to work behind the scenes on software that reaches thousands of users every day? DNA.inc is looking for a Java Backend Developer to help shape the backend architecture for one of our major digital partners. In this role, you'll be developing services and APIs that keep large-scale applications running smoothly and efficiently across Europe, ensuring every experience is reliable, secure, and a pleasure to use. About the job As a Java Backend Developer at DNA.inc, you'll design, build, and maintain modern backend systems built on Java and Spring Boot. You'll work closely with a cross-functional team of developers, DevOps engineers, and designers to bring robust and elegant solutions to production. In this role, you'll: * Design, develop, and maintain microservices and RESTful APIs using Java 17+ and Spring Boot * Optimize performance and scalability across distributed systems * Work with

relational and non-relational databases such as PostgreSQL, Redis, and MongoDB * Collaborate with front-end and mobile engineers to ensure seamless feature integration * Participate in code reviews, testing, and CI/CD pipelines to maintain code quality * Contribute to infrastructure automation using Docker, Kubernetes, and modern DevOps tooling * Keep an eye on new trends and technologies to continuously improve system architecture and reliability About you To be considered a candidate for this position, we expect you to have: * At least 6+ years of professional experience in Backend Development * Strong experience with Java 11+ (ideally 17+) and Spring Boot * Solid understanding of RESTful API design and microservice architecture * Hands-on experience with databases such as PostgreSQL, MySQL, or Redis * Familiarity with Docker and Kubernetes for containerized deployments * Knowledge of cloud environments (AWS, GCP, or Azure) * Strong problem-solving and communication skills It would also be great if you have: * Experience with event-driven systems (Kafka, RabbitMQ, or similar) * Familiarity with continuous delivery pipelines and observability tools * Exposure to system integrations between multiple large-scale platforms * Interest in streaming, media, or large-scale digital services Who we are At DNA.inc, we love building platforms and products that people want to use. We help clients envision, build, and launch large-scale software projects in streaming, media, automotive, and other industries. Headquartered in Europe with hubs in Amsterdam, Valencia, and Madrid, we combine a remote-enabled business model with a passion for working on influential products that reach global audiences. You'll collaborate with experienced designers, engineers, and executives who have contributed to major streaming services such as Disney+, ESPN+, Eurosport, and SiriusXM. At the same time, you'll grow within a culture that celebrates expertise and supports your development through mentorship, learning budgets, conference participation, and a clear long-term career path. What we offer * A remote-first position anywhere in the European Union, with the option to work from one of our hubs if you choose * Challenging work with a dynamic, international consultancy * Fair compensation, aligned with your experience and region * Flexibility in working hours and location * A clear growth path, either deepening your craft or moving into leadership * Periodic company offsites across Europe * Support for your home office setup (hardware, software, etc.) * Additional benefits (e.g. pension) vary by country; details available upon request Interested? If you're excited about building the systems behind today's most engaging digital products and have the skills we're looking for, we'd love to hear from you. Apply through the 'Apply' button on our website. Please note that, to safeguard the quality and integrity