Lead React Fullstack Developer Location: Bogotá, Colombia Work Mode: Hybrid Salary: To be agreed based on experience and skills At Sii Group Colombia , we’re looking for a Lead React Fullstack Developer to join one of our most strategic international projects. This role is ideal for someone who thrives in leading front-end architecture efforts while also being capable of integrating with modern backend services. You’ll be the technical front-end reference for the team and contribute to building scalable, high-performance applications using React and Java in a microservices environment. Requirements: - 6+ years of professional software development experience - Strong expertise in React and modern frontend architecture (70% focus) - Solid experience with Java for backend development (30% focus) - Experience building and consuming RESTful APIs - Familiarity with microservices and event-driven architecture - Hands-on experience with cloud platforms (AWS, Azure, GCP, etc.) - Experience implementing CI/CD pipelines - Proven experience leading small teams (up to 6 people) - Upper-intermediate to advanced English (B2–C1 level) Responsibilities: - Lead the UI development effort and define the front-end architecture - Design and develop scalable components using React - Collaborate with backend engineers to integrate Java-based microservices - Ensure code quality, performance, and maintainability across the stack - Build and consume APIs efficiently, ensuring data consistency - Guide and mentor junior developers, ensuring technical alignment - Work closely with DevOps to ensure seamless deployment and automation - Drive best practices in coding, testing, and system design #J-18808-Ljbffr Required Skill Profession Informática, Tecnología Y Sap