Mid/Senior Backend Engineer - Python

Software, and Hardware Engineers, as well as Product Managers. Your key responsibilities will include: * Designing and developing scalable, secure, and efficient backend solutions for hardware/software integration. * Identifying technical risks and proposing architectural improvements for scalability and performance. * Delivering high-quality, tested code within agreed timelines. * Documenting technical standards, data streaming processes, and analytics workflows. * Proactively troubleshooting and resolving system issues to minimize operational impact. * Managing and optimizing cloud infrastructure resources to ensure reliability and efficiency. * Collaborating cross-functionally to ensure smooth service integration and system health. What are we looking for? * 4+ years of experience in backend development. * Strong proficiency in Python for backend applications. * Good command of AWS, especially Lambda-based architectures. * Solid knowledge of SQL, clean code principles, and

OOP. * Experience with Docker, microservices, and event-driven systems. * Strong documentation and communication skills. * Advanced English proficiency (spoken and written). Bonus points for: * Experience with Infrastructure as Code tools such as Terraform. * Experience with the Serverless and FastAPI frameworks. * Knowledge of Kafka and analytical databases like Clickhouse. What we offer * Hybrid work model based in Barcelona. * Full-time, permanent contract. * Gross annual salary range: €50,000 - €55,000. * A meaningful mission contributing to a more sustainable energy future. * A high-performing technical team and a collaborative culture. * A fast-moving environment where innovation and ownership are encouraged. If you're excited about building clean and scalable systems for the energy of the future, we'd love to hear from you. #J-18808-Ljbffr

At Addyou, we are a recruitment consultancy specialized in identifying top talent for innovative and high-impact organizations. We are currently partnering with a fast-growing technology company based in Barcelona that is accelerating the energy transition through cutting-edge software and hardware solutions for utility-scale energy storage. Are you passionate about working on tech projects with a real-world impact? Would you like to be part of a company with a strong vision, solid product, and a multidisciplinary team driven by innovation? If you're a Backend Engineer experienced in Python and excited by the challenge of scaling systems that power the renewable energy revolution, this role is for you. What will you do? As a Mid/Senior Backend Engineer - Python, you'll be a key technical contributor responsible for designing, developing, and maintaining the backend architecture of a robust battery management platform. You'll work in a collaborative environment alongside DevOps