Summary: Seeking a Senior Full Stack Developer to design, deliver, and mentor on production-quality frontend and backend features, collaborating with Product and QA to shape impactful software. Highlights: 1. Design and deliver complex end-to-end features across React and Java 2. Lead refactors to reduce technical debt and improve performance 3. Mentor developers through feedback, pairing, and knowledge sharing We are looking for a **Senior Full Stack Developer** to design and deliver production\-quality frontend and backend features while driving technical excellence and mentoring the team. You will collaborate closely with Product and QA to deliver reliable, high\-performance solutions—apply now to help shape impactful software. **Responsibilities** * Design and deliver complex end\-to\-end features across React and Java with Spring Boot * Implement and integrate reliable backend services using Apache Kafka and PostgreSQL * Design and deliver well\-documented APIs using REST and GraphQL * Maintain high coding standards through code reviews and approval of critical pull requests * Author and maintain unit and integration tests and promote test\-first practices * Ensure secure data handling and apply basic security practices for authentication and authorization * Lead refactors to reduce technical debt and improve performance and observability * Break down complex stories, estimate tasks, and support product prioritization with technical input * Mentor developers through feedback, pairing, and knowledge sharing * Collaborate with Product, Design, and QA to meet requirements and UX expectations * Participate in grooming, planning, and demos * Promote documentation and improve onboarding for technical teammates **Requirements** * 5\+ years of professional software development experience with production delivery * Strong Java experience (11 and 17\) with Spring and Spring Boot in production * Strong React experience with component patterns, state management, and best practices * Hands\-on Apache Kafka experience in backend integration * Proven performance optimization skills including profiling and JVM tuning * Solid PostgreSQL experience for application data access and querying * Strong unit testing skills with unit and integration test design and maintenance * Technical leadership experience mentoring junior and mid\-level developers * Project ownership skills to break down complex stories, estimate tasks, and deliver end\-to\-end * Strong communication skills to explain trade\-offs to technical and non\-technical stakeholders * Willingness to travel as required by the project * English proficiency: B2 Upper\-Intermediate **Nice to have** * Experience with JavaScript (Frontend) * Familiarity with Oracle PL/SQL * Knowledge of Oracle RDBMS * Proficiency in using Oracle SQL Developer