**About FullStack** FullStack is the most transparent IT talent network, connecting highly skilled individuals with top global companies and Silicon Valley startups for remote, on-demand projects. We focus on building a trusted, high-performance network where talent can thrive in a positive, respectful, and supportive environment. By prioritizing transparency, fair opportunities, and professional growth, we empower our engineers to deliver their best work while collaborating with innovative teams worldwide. **We’re Most Proud Of** - Offering life-changing opportunities for talented software professionals across the Americas. - Enhancing highly-skilled software development teams of hundreds of the world’s greatest companies. - Our 4.2-star rating on GlassDoor. - Our client Net Promoter Score of 68, twice the industry average. **The Opportunity** Join our talent network and connect with U.S. clients for versátil, project-based development work as a Full Stack Engineer (Java + Kotlin + React). - You will integrate directly into our client's team and work alongside their existing designers and engineers on a daily basis. **What We're Looking For** - 5+ years of professional software development experience. - Advanced English is required. - Successful completion of a four-year college degree is required. - Extensive experience with Kotlin and Java for backend development. - Strong background in object-oriented programming and software design principles. - Proven experience building scalable backend services and APIs. - Hands-on experience working with frontend frameworks such as React, Vue, or Angular. - Demonstrated experience using TypeScript (preferred) or JavaScript for frontend development. - Deep experience in designing and developing full-stack applications. - Practical experience integrating frontend and backend systems. - Solid understanding of RESTful APIs and microservices architecture. - Familiar with modern frontend development practices