Senior FullStack Developer (Python & React)

Description

**Company Description** ----------------------------- Why work at Sopra Steria? Because working at Sopra Steria also means feeling **Sopra Steria**. We are a recognized European leader in consulting, digital services, and software development, with nearly 56,000 employees across almost 30 countries—and over 4,000 in Spain. We focus on people—on their training and professional development—which drives our constant growth and improvement. We are passionate about digital transformation, and just like you, we seek the greatest adventure. We want your everyday experience to become your greatest source of inspiration—to learn, contribute, have fun, grow, and above all, enjoy it to the fullest. If you want to join a "**Great Place to Work**" team, keep reading! **Job Description** -------------------------- We are looking for a **Senior FullStack Developer**, experienced in **Python** and **React**, capable of working across the full technology stack—from React/TypeScript interfaces to FastAPI/Python backends and BigQuery queries. Responsibilities include low-code form development, Discrepancy Viewer implementation for conflict resolution, Entity and Transitive Resolution engines, REST APIs and Pub/Sub, a visual graph explorer for entities, and AlloyDB configuration management with automated provisioning. Additionally, maintaining test coverage and participating in code reviews will be essential. You will collaborate on automotive-sector projects, contributing your expertise while growing professionally. **Requirements** -------------- **What are we looking for?** * Advanced proficiency in React with TypeScript and Next.js. * Advanced proficiency in FastAPI with Python. * Extensive experience with SQLAlchemy, advanced SQL in BigQuery, AlloyDB/PostgreSQL, Pub/Sub, and GCP (Cloud Run, BigQuery API, IAM, Secret Manager). * Proficiency in testing using pytest, Vitest/Jest, and Playwright, as well as Docker and GitHub Actions for CI/CD. * English level B2. **Additional Information** ------------------------- **What do we offer you?** * Permanent contract and full-time schedule * Flexible hybrid work model * 23 vacation days * Continuous training: technical, transversal, and language skills. Access to certifications, training from leading technology partners, online platforms—and much more! * Life and accident insurance * Option to enroll in our flexible compensation plan (medical insurance, childcare vouchers, transportation, meal vouchers, and training) * Access to the Privilege Club, offering attractive discounts with major brands * Personalized and detailed onboarding. We support you every step of the way so you feel \#soprano from day one. * Office with dedicated leisure spaces—where work and fun come together! * Camaraderie and a positive atmosphere—we truly believe in the power of unity. And most importantly…you’ll have the opportunity to develop your professional career with us: Together, we’ll create a personalized career plan. You’ll receive training, set goals, and undergo regular follow-ups to ensure we achieve them—together. We listen to your priorities and actively advocate for them. Your voice matters here! Join us and be part of something greater! *The world is how we shape it* At Sopra Steria, we are committed to building a diverse and inclusive environment, evaluating each application objectively based on competencies and experience. We firmly believe that diversity of experiences and perspectives fuels our innovation.