Lead Product Engineer

Lead Product Engineer (Next.js + Generative AI) – Remote – Latin America FullStack – Join our talent network and connect with U.S. clients for flexible, project-based development work. 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. 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. Opportunity You will integrate directly into our client’s team and work alongside their existing designers and engineers daily. Qualifications 7+ years of experience building and scaling production‑grade web applications in a senior or lead engineering role. Advanced English required. Successful completion of a four‑year college degree is required (Computer Science, HCI, or a related field is preferred). Strong experience across front‑end and back‑end development (depth in one area, capability in both). Advanced knowledge of React and Next.js. Solid backend experience with Python. Experience working with Generative AI, LLMs, or AI‑driven features. Strong understanding of UI/UX principles and product design details. Proven ability to collaborate and provide technical leadership. Experience building chatbot interfaces or AI‑native products is a plus. Familiarity with LLMs, AI agents, and prompt engineering. Strong opinions and experience with testing strategies, A/B testing, and safe deployments. Ability to work through new and difficult issues and contribute to libraries as needed. Ability to create and maintain continuous integration and delivery of applications. Forensic attention to detail. A positive mindset and a can‑do attitude. Experience working on Agile / Scrum teams. Meaningful experience working on large, complex systems. Ability to take extreme ownership over your work. Every day is a challenge to ensure you are performing to the expectations you and your team have agreed upon. Ability to identify with the goals of FullStack’s clients, and dedicate yourself to delivering on the commitments you and your team make to them. Ability to consistently work 40 hours per week. What We Offer Competitive pay. 100% remote work. The ability to work with leading startups and Fortune 500 companies. Continuing education opportunities. Opportunity to grow and expand your career. Our talent network is committed to fostering a diverse, inclusive, and accessible environment where IT professionals can find opportunities that match their skills. We welcome individuals of all races, religions, genders, sexual orientations, national origins, abilities, and experiences. Our focus is on connecting talent with projects based on qualifications, ensuring a fair and transparent process that values diverse perspectives and global collaboration. Additional Details Seniority level: Mid‑Senior level Employment type: Full‑time Job function: Engineering and Information Technology Industries: IT Services and IT Consulting, Computer and Network Security, and Information Services Location: Remote – Latin America (Brazil) Referrals increase your chances of interviewing at FullStack by 2x. #J-18808-Ljbffr