Join Hostinger, a company powering online success with AI and a global team of 900+ professionals serving over 4 million clients in 150 countries. As a Backend Software Engineer on the Horizons team, you will build powerful, scalable, and resilient backend systems that enable the Horizons platform. Your role involves designing and developing backend systems and APIs using Node.js to support a unique ‘vibe coding’ experience, collaborating closely with frontend developers, product managers, and engineers to ensure seamless integration and high performance for users worldwide. Responsibilities include owning backend features and services, making architectural decisions with senior engineers, optimizing API performance and database scalability, integrating third-party APIs, and maintaining quality through tested, documented, and scalable code. You will also have the opportunity to grow professionally through mentorship and real-world engineering challenges. Requirements include 4+ years experience with Node.js, TypeScript, PostgreSQL/MySQL, REST API design and implementation, message queues like RabbitMQ or BullMQ, containerization knowledge with Kubernetes and Docker, observability tool experience, a testing mindset using Jest or Mocha, proficiency with SQL and ORMs, solid Git usage, and excellent communication skills. Bonus qualifications include microservices architecture, performance optimization, CI/CD, AI tools experience, and Terraform. Benefits include limitless learning opportunities with access to Reforge and global conferences, flexible working arrangements with hybrid options in Kaunas and Vilnius or remote work, health insurance, gym memberships, recharge leave, wellness apps, company events, and competitive compensation ranging from 5,600 to 7,600 EUR gross per month based on experience and growth trajectory. Hostinger fosters a trust-based culture emphasizing freedom, responsibility, and work-life balance, supporting your growth from mid to senior engineer levels.