Python / Node.js Backend Developer

Description

Job Summary: We are seeking a Python / Node.js Backend Developer to design, develop, and maintain APIs, optimize systems, and collaborate in Agile environments. Key Highlights: 1. REST and/or GraphQL API design and development 2. Query optimization and system scalability 3. Collaboration in multidisciplinary teams and process improvement Location Sils Category Information Technology and Telecommunications Subcategory Systems Sector Information and Technology Services Work Schedule Full-time Work Modality Remote Work/Telecommuting Professional Level Mid-level Management Department Information Technology ### **Description** At Izertis, we are looking to expand our team by hiring a Python / Node.js Backend Developer to join one of our most important Retail-sector clients. What will your responsibilities be? * Design, develop, and maintain REST and/or GraphQL APIs. * Participate in backend architecture and relational/NoSQL data model design. * Optimize queries, performance, and system scalability. * Implement caching solutions and resilience mechanisms to ensure service availability. * Develop integrations with external systems and corporate platforms. * Ensure code quality through automated testing and code reviews. * Participate in defining and improving continuous development and deployment processes. * Collaborate with multidisciplinary teams in Agile environments. * Contribute to the team’s technical growth by sharing knowledge and best practices. What are we looking for in you? * Education: Advanced Vocational Training in IT / Bachelor's degree or equivalent qualifications Required Experience: * Solid backend development experience in production environments. * Advanced knowledge of at least one of the following languages: Python, Node.js, or equivalent technologies. * Experience in designing and developing REST and/or GraphQL APIs. * Knowledge of relational and NoSQL databases. * Experience working with Docker and CI/CD environments. * Familiarity with development best practices: Clean Code, SOLID principles, and design patterns. * Experience in automated testing and application observability. * Ability to work autonomously and results-oriented. * Strong communication and teamwork skills. Social Benefits: Desired Qualifications * Experience in hybrid and multicloud environments * Knowledge of observability and monitoring * Experience in retail, logistics, or distributed environments Where would we like you to be located for this position? In line with our culture, we would prefer that you reside in cities where we have offices and can count on your presence, such as Madrid, Gijón, Barcelona, Vitoria, A Coruña, Valencia, or Seville. What can we offer you?  Permanent employment contract  Hybrid work model: 3 days onsite and 2 days remote.  Competitive salary aligned with your experience and expectations.  Flexible working hours, including a compressed workweek on Fridays.  Compressed work schedule during July and August, working from 8:00 to 15:00 to support better work-life balance.  Flexible compensation package allowing you to choose medical insurance, meal vouchers, childcare vouchers, or transportation vouchers.  Free English classes to improve or reinforce your current level.  22 working days of vacation plus your birthday off. About Izertis At Izertis, we drive digital transformation for companies, organizations, and individuals through tailored, innovative, and impactful technological solutions. Founded in 1996 and approaching 30 years of history, Izertis is listed on the Spanish Continuous Market (BME) and ranks among the top 1000 fastest-growing companies across Europe. Today, we are over 2\.300 professionals operating from offices across Europe, the Americas, and Africa, serving clients and delivering projects in over 50 countries via a broad portfolio of solutions including: Software Engineering; Consultancy \& Governance; Cloud \& Infrastructure; Cybersecurity; AI \& Data \& Emerging Technologies; CX \& Business Solutions; and other enabling technologies for digital transformation. Would you like to join our team? If so, don’t hesitate to apply so our Talent team can get to know you! Also, remember to check other opportunities that may interest you in the Jobs section of our website: https://www.izertis.com/es/talento