Senior Software Engineer - High Performance & Scale

📋 Description Design and implement end-to-end features within your squad. Lead architecture discussions and propose improvements across services and APIs. Work with event-driven systems, focusing on performance, reliability, and scalability. Collaborate with Product, Data, and other Engineering teams to improve the platform. Take ownership of core components and evolve their architecture. Lead by example through code reviews, design sessions, and mentoring. 🎯 Requirements Strong knowledge of maintainable, scalable code with TDD and design patterns. Relational databases and SQL mastery. Event streaming platforms like Kafka or RabbitMQ. Handling services with high concurrency and high volume requests. Datadog or similar profiling/monitoring tools. Business English proficiency. 🎁 Benefits 40% discount on Cobalt Streamworks events. Home office friendly - based anywhere in Spain. Relocation package for international candidates. Ownership from day one and opportunities for growth. Great work environment with a diverse, talented team. Health insurance and Cobee flexible remuneration, English lessons, Gympass membership.