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Backend Developer ( Java Python) 100% remoto

Barcelona, Cataluña🌐 Remote💼 Full-time🗓 2025-07-18 → 2026-09-23

Core

Design and develop efficient, secure, and scalable backend services for a company in the energy sector, focusing on digital transformation and product acceleration.

Role type

Senior Backend Developer (Java/Python)

Builds

Backend services and RESTful APIs for energy sector clients

Domain

Energy sector / Digital transformation

Deliverable

production ML models | product features | infrastructure

Required skills

Java (Spring Boot), Python, RESTful API design, relational databases (PostgreSQL, MySQL), NoSQL databases (MongoDB, Redis), unit and integration testing, code reviews, architectural design

Preferred skills

Microservices architecture, clean code practices, collaboration with frontend and DevOps teams

Technologies

Spring Boot, Python, PostgreSQL, MySQL, MongoDB, Redis

Responsibilities

Design and develop backend services, implement and maintain RESTful APIs, write clean and documented code, participate in architecture definition, perform unit and integration tests, collaborate with cross-functional teams, conduct code reviews

Seniority

Senior, hands-on IC

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