Backend Engineer

This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Senior Backend Engineer (New Business) based in Spain. You will join a fast-moving engineering group focused on building and evolving high-impact backend systems that power both internal operations and client-facing products. The role sits at the intersection of product engineering and platform development, where scalability, reliability, and clean architecture are critical. You’ll work on complex distributed systems, contribute to modern backend services, and help integrate new technologies across the stack. This is an environment that values experimentation, technical ownership, and continuous improvement. You will collaborate closely with product managers, infrastructure engineers, and other developers to ship features that directly impact users and business outcomes. The work spans high-scale services, data-heavy systems, and modern cloud-native tooling, making it ideal for engineers who enjoy variety and technical depth. Accountabilities: Own the design, development, and maintenance of robust backend services primarily using Ruby on Rails, ensuring code is scalable, testable, and maintainable. Build and enhance distributed systems and services involving technologies such as Kafka, GraphQL, Docker, Kubernetes, and modern cloud infrastructure. Collaborate with infrastructure engineers to ensure seamless integration between application code and platform-level systems. Write automated tests, perform code reviews, and contribute to maintaining high engineering standards across the team. Participate in system design discussions, helping define architecture decisions that balance performance, reliability, and long-term maintainability. Continuously improve engineering processes, contribute ideas, and support knowledge sharing across the team. Mentor peers and contribute to raising the overall technical bar of the engineering organization.

The ideal candidate has strong backend engineering experience with a deep understanding of distributed systems and modern software practices. You should be comfortable working in fast-paced environments, solving ambiguous technical problems, and making trade-offs across performance, scalability, and maintainability. 5+ years of professional experience in backend or web development using Ruby and Ruby on Rails. Strong experience with SQL databases and data modeling in production environments. Solid understanding of object-oriented programming principles, software architecture, and automated testing practices. Experience working with or exposure to distributed systems and event-driven architectures (Kafka is a plus). Familiarity with GraphQL and modern backend service design is highly valued. Strong problem-solving skills with the ability to evaluate multiple technical approaches and choose the most effective solution. Excellent communication skills, with the ability to articulate technical concepts clearly and collaborate across teams. A proactive mindset with a strong sense of ownership and accountability for delivered work.

Competitive compensation package aligned with experience and market benchmarks Remote-first or flexible working arrangements Opportunity to work on high-scale, modern backend systems and cutting-edge technologies Strong engineering culture focused on learning, experimentation, and continuous improvement Professional development opportunities and exposure to advanced distributed systems Collaborative environment with experienced engineers and cross-functional teams High-impact work contributing directly to product and platform evolution How Jobgether works