At SEAT CODE, we're looking for a Senior Backend Engineer who combines technical excellence with a strong product mindset. You won't just write code—you'll own features from ideation to go-live, working hand in hand with product managers, designers, and fellow engineers.You'll join a cross-functional team with real impact, while also helping to shape backend practices across the company through initiative, mentoring, and collaboration 💡What will you do 🤔End-to-End Ownership: From shaping product ideas to go-live and observability—you own the full lifecycleBackend Engineering: Design and build scalable APIs and systems using KotlinTesting & Observability: Apply testing best practices (unit, integration, acceptance) and ensure system reliability via logs, metrics, alertsCloud Infrastructure: Deploy, monitor, and maintain services on AWSProduct Collaboration: Co-create features with Product and Design, balancing tech and business needsTechnical Leadership: Drive backend improvements and mentor fellow engineersWhat we offer 🤩Possibility to work remotely within Spain (you can work from any city of Spain ) 😎2.200€ per year in social benefits2.000€ per year in trainingsDaily Snacks: We try to promote healthy living habits. You will find in our canteen many nuts, fresh fruit, salads, ...Flexible working hours: We understand the importance of work-life balance26 days for your vacationsBest technology for your needsNice located officesEnglish as the official speaking language.Salary: 60.000-67.000Minimum requirementsWhat we are expecting from you (must have) 🥰Experience leading technical initiativesStrong experience with Kotlin or Java + SpringSolid AWS experienceExpertise in testingInfrastructure as Code (Terraform, CloudFormation, CDK)Experience with deployment strategies: microservices, modular monolythFamiliarity with SQL/NoSQL databasesPassion for building product-centric solutionsFluent English to thrive in a multicultural environmentNice to have 😉Event-driven architecturesCQRS