Mid/Senior Backend Engineer

hace 2 semanas

Barcelona, Barcelona, España AddYou A tiempo completo 50.000 € - 55.000 €

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.

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