Job Summary: We are seeking a Senior Backend Java Developer with database specialization to develop and maintain critical internal applications and participate in stable projects with direct business impact. Key Highlights: 1. Joining a cutting-edge technology department with strategic projects 2. A close-knit, collaborative team with a positive working atmosphere 3. Job stability and continuous training with support for professional development 18/03/2026 **Site Description** Within the Engineering and Energy Department, we seek to hire a Senior Backend Java Developer with database specialization to reinforce the technical team responsible for developing and maintaining the group’s critical internal applications. This position targets professionals with a solid background in backend development and management of large, complex databases, who wish to participate in stable, long-term projects with direct impact on business operations and decision-making. Responsibilities: * Design, develop, and maintain Java-based backend applications * Define, evolve, and optimize complex data models * Develop and maintain SQL queries, stored procedures, and data processes * Develop and maintain APIs and system integrations * Ensure application and database performance, stability, and quality * Integrate data from diverse systems (industrial, corporate, energy-related) * Analyze and resolve production environment incidents * Support operational management of database backups and restorations * Collaborate closely with engineering, energy, and business teams * Document solutions and apply software development best practices What We Offer: * Opportunity to join a cutting-edge technology department with strategic projects * Development of proprietary applications with real business impact * A highly collaborative, supportive team with an excellent working atmosphere * A stable environment offering decision-making autonomy and professional growth * Job stability within an established corporate group * Continuous training and support for professional development * Option to work remotely one day per week * Competitive salary commensurate with experience **Minimum Education** Degree in Computer Engineering or related field. **Other Requirements** * Experience in backend development and database management * Advanced proficiency in SQL (complex queries, performance optimization, indexing, complex data modeling) * Solid experience with relational databases (SQL Server, PostgreSQL, MySQL or similar) * Proven experience in backend development using Java * Knowledge of service-oriented architectures, APIs, and integrations * Demonstrated experience in production environments handling mission-critical systems and large data volumes * Strong analytical skills, technical autonomy, and accountability * Senior profile with demonstrable experience Preferred Qualifications: * Solid experience with other backend languages (Python, .NET, Node.js or equivalents) * Knowledge of NoSQL or vector databases * Experience in ETL, Data Engineering, data analytics, or BI environments * Experience applying AI to data exploitation (assistants, automation, analysis) * Cloud experience (preferably Azure) Personal Competencies: * Technical autonomy and accountability * Analytical mindset and results orientation * Ability to collaborate effectively in teams and multidisciplinary environments * Proactivity and commitment to continuous improvement * Strong technical and functional communication skills **Start Date** ASAP. If you are passionate about backend development and data, and want to work in a technically demanding yet supportive environment with constant challenges and tangible impact, this is the place for you. **Salary** Based on qualifications and experience.