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, 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.
