Mid / Senior Backend Engineer - Python

CONFIDENCIAL; Barcelona; Presencial; EUR 40.000 - 60.000; Jornada completa

Descripción de la vacante

A leading tech company in Barcelona is seeking a Mid/Senior Backend Engineer to develop a battery management platform. The ideal candidate has over 4 years of experience in backend development, strong proficiency in Python, and good command of AWS. You'll collaborate with a multidisciplinary team to create scalable solutions and resolve system issues. This is an opportunity to make an impact in the renewable energy sector.

Formación

• 4+ years of experience in backend development.
• Strong proficiency in Python for backend applications.
• Good command of AWS, especially Lambda-based architectures.
• Experience with Docker, microservices, and event-driven systems.

Responsabilidades

• Designing scalable, secure, and efficient backend solutions.
• Identifying technical risks for scalability and performance.
• Delivering high-quality, tested code within agreed timelines.
• Managing cloud infrastructure resources efficiently.

Conocimientos

Backend development

Python

AWS

SQL

Docker

OOP

Microservices

Event-driven systems

Documentation

Communication skills

English proficiency

Herramientas

Terraform

FastAPI

Kafka

Clickhouse

Descripción del empleo

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.