Senior Fullstack Engineer - Madrid/Barcelona(remote) – International client

Senior Fullstack Engineer - Madrid/Barcelona(remote) – International client At The WhITeam Consulting we are seeking for a Senior Fullstack Engineer with strong knowledge in DevOps, Python, Kubernetes, JavaScript and preferably ReactJS. Join us! SEND REQUEST Senior Fullstack Engineer in Madrid/Barcelona (remote) for an International client Job role: Senior Fullstack Software Engineer Job description: A Senior Fullstack Software Engineer with high experience in DevOps, Kubernetes & Python. Location: Madrid/Barcelona (Remote) Languages required: English (C1) MANDATORY Minimum experience: 5 to 7 years Rate: 260-285€/day DESCRIPTION Responsibilities: We are seeking a Senior Fullstack Software Engineer with strong expertise in Python and solid experience in JavaScript (preferably ReactJS). The ideal candidate will take a lead role in backend architecture and development with a strong emphasis on performance, reliability, and scalability, supporting thousands of concurrent users and high-frequency external integrations. The role includes contributing to frontend development with modern technologies, making key technical decisions, driving architectural improvements, ensuring high code quality through comprehensive testing (including Playwright for end-to-end and integration tests), and collaborating with engineering and product stakeholders. This position requires hands-on experience with our technology stack and a proactive, improvement-oriented mindset. Knowledge and Skills: Lead backend architecture and development to ensure high performance, scalability, and reliability. Develop and maintain backend services using Python and FastAPI. Contribute to frontend development using ReactJS, Typescript, Vite, and Tailwind. Drive technical decision-making and promote best practices across the engineering team. Collaborate closely with engineers, product managers, and stakeholders to deliver robust and user-friendly solutions. Participate in architectural reviews and contribute to continuous improvement initiatives. Work with databases and storage technologies such as Redis, and manage migrations with Alembic. Coordinate with the infrastructure team regarding deployments and operations in environments using Azure DevOps, Docker, Kubernetes, and AWS. Technical Skills: Python (5+ years) FastAPI JavaScript / Typescript ReactJS (3+ years preferred) Typescript Tailwind Vite Redis Alembic (migrations) Azure DevOps MongoDB PostgreSQL Docker Kubernetes AWS (Infrastructure knowledge is a plus but not mandatory) Languages: English (C1) Rate: 260-285€/day. Departamento IT Puesto CONSULTOR/A Ubicaciones Madrid, Barcelona Estado remoto Completamente remoto ¿Qué ofrecemos? Horarios TheWhiteam ofrece horarios flexibles. Esto se debe a que buscamos cumplir objetivos, no llegar a una cantidad de horas. Tecnologias Las tecnologías más punteras, para estar actualizados a los cambios del momento. Modalidad de Trabajo Dada la situación TheWhiteam da la posibilidad de una modalidad de trabajo presencial, teletrabajo o mixta. Ubicaciones TheWhiteam da la posibilidad de trabajar en ubicaciones situadas por todo el mundo. Lugar de trabajo Formar parte de THEWHITEAM es colaborar con una empresa formada por profesionales con una dilatada experiencia en consultoría tecnológica. Creemos firmemente que las empresas y clientes marcan el camino a seguir en el sector, pero éste lo construyen las personas. Consideramos de vital importancia que nuestra organización se fundamente en nuestro mejor activo y marca de valor añadido que es nuestro equipo humano . Acerca de The White Team Fundada en 2012 por consultores experimentados The Whiteam nace como consultora tecnológica de calidad con una misión clara; ayudar a las compañías de todo el mundo a optimizar su rentabilidad empresarial a través de un uso eficiente de las tecnologías de la información.