We are seeking a Senior Backend Python Developer to join our innovative technology team in Madrid. This is a Full-time, on-site position where you will lead the design and implementation of scalable backend systems using Python and modern frameworks. You'll work on mission-critical applications serving millions of users, collaborating with cross-functional teams to deliver high-performance solutions. This role offers the opportunity to mentor junior developers and shape the technical direction of our backend infrastructure.
Who are we looking for
We're looking for an experienced Python developer with a passion for clean code and system design. You should have at least 6+ years of professional experience building robust backend systems. You must be comfortable working in a fast-paced environment, taking ownership of projects from conception to production deployment. Strong problem-solving skills, excellent communication abilities, and a collaborative mindset are essential. You should be proactive in identifying technical debt and proposing innovative solutions. A deep understanding of software architecture patterns and best practices is required.
Skills and competencies
Expert-level proficiency in Python and modern frameworks (Django, FastAPI, or similar)
Strong understanding of relational and NoSQL databases (PostgreSQL, MongoDB)
Experience with microservices architecture and distributed systems
Proficiency with Docker, Kubernetes, and cloud platforms (AWS/GCP)
Knowledge of RESTful API design and GraphQL
Experience with CI/CD pipelines and DevOps practices
Strong understanding of design patterns and SOLID principles
Excellent problem-solving and analytical skills
Fluent in English; Spanish is a plus
Git version control and Agile methodology experience
Benefits, additional requirements, details
Competitive salary package with performance bonuses
Comprehensive health insurance and dental coverage
Professional development budget for courses and certifications
Flexible working hours with core hours requirement
Modern office in central Madrid with excellent amenities
Collaborative and inclusive team environment
Opportunity for career growth and technical leadership roles
Annual leave of 25 days plus public holidays
Technology allowance for equipment and tools
Regular team building events and company social activities
Application requirements
Applicants must demonstrate portfolio examples of previous backend projects. GitHub profile or code samples are highly appreciated. Please include a cover letter explaining your interest in this specific role and your approach to system design challenges.
... 4 años Idiomas requeridos - Inglés - Avanzado Sector Suministros de: Energ. Electr, gas, vapor, aire, agua , saneamiento, residuos Descripción Buscamos un/a Senior Python Developer con más de 4 años experiencia en Python desarrollando aplicaciones escalables en sistemas de alta disponibilidad y listas para producción. Nuestro ...
We're looking for a Senior Python Developer to join our team in Madrid or Barcelona, Spain in a hybrid working mode. In this role, you will design and implement secure, high-performing backend services that enable generative AI-driven applications across Azure. You will develop GraphQL APIs, optimize relational database ...
Desde IT Partner buscamos un/a Java Backend Developer Senior para incorporarse a un proyecto estratégico dentro del sector financiero, participando en la renovación de los sistemas core de pricing y trading de FX (Foreign Exchange) . Formarás parte del equipo de Price & Distribution , centrado en plataformas globales de ...
AD4 Octógono busca un/a Senior Java Backend Developer para incorporarse a un proyecto tecnológico donde la experiencia en Java moderno, programación concurrente, servicios distribuidos y arquitecturas cloud será clave. Buscamos un perfil técnicamente sólido, capaz de trabajar con autonomía, tomar decisiones de diseño y ...
... Ingeniero/a Backend Python Senior con experiencia en Python (FastAPI, Flask o Django) y soluciones de inteligencia artificial para unirse a proyectos de servicios backend escalables en entornos críticos, en Barcelona. - Diseñar y liderar la construcción de servicios backend escalables en Python en entornos críticos. - Garantizar ...
This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Senior Software Developer (https://jobeax.com/link/j79vXEtGhteIPQl3 based in Spain. As a Senior Software Developer, you will help build the backend and AI systems that support an innovative, ...
This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Senior Software Developer (https://jobeax.com/link/j79vXEtGhteIPQl3 based in Spain. As a Senior Software Developer, you will help build the backend and AI systems that support an innovative, ...
Shipco IT in Barcelona is seeking a Senior Application Developer to design, build, and maintain high-performance Python microservices. You’ll connect FastAPI backend with Angular frontends and collaborate across global teams. Ideal candidates have 5+ years Python experience, strong MySQL/SQLAlchemy, Docker, AWS ECS/ECR, ...
Como Backend Developer , esperamos que puedas desarrollar las distintas funcionalidades que son necesarias para hacer crecer nuestra plataforma, la cual nos permitirá automatizar procesos tanto internos, como para nuestros clientes y proveedores, lo que derivará en mayores beneficios para todos los equipos interesados. ...
... usuarios de múltiples geografías, y con la proyección profesional que eso conlleva. ¿Dónde estamos? ¿Qué podrás hacer con nosotros? - Diseñar y desarrollar en Python los servicios y componentes que dan vida a los agentes de IA de la plataforma. - Construir y mantener los agentes de IA encargados de generar los backends de ...
Krell Consulting & Training, S.L. en Barcelona busca un/a Senior Backend Developer Java con amplia experiencia en microservicios para un proyecto en el sector seguros. Trabajarás con Java y Spring Boot en un entorno orientado a eventos, principalmente bajo un modelo híbrido en Barcelona. Se valorará experiencia con Kafka, ...