Founding Software Engineer (Front-end Leaning) Remote (LATAM) | U.S. Working Hours About the Company Our client is a fast-growing, venture-backed technology company building foundational data infrastructure for frontier AI systems, including large language models and autonomous agents. Their platform enables complex data creation, experimentation, and high-reasoning workflows used by some of the most advanced AI teams globally. Founded in 2024 and backed by top-tier investors, the company is experiencing rapid growth and works directly with leading AI research organizations and high-growth startups. The founding team brings experience from elite backgrounds in technology, quantitative trading, and finance, and has previously built and scaled systems at world-class companies. They operate as a small, highly talent-dense team with a strong focus on ownership, speed, and technical excellence. About the Role Our client is looking for a front-end leaning Founding Software Engineer to help build and scale complex data-capturing and processing workflows across web and desktop environments. This is a high-impact, early engineering role where the engineer will work closely with the founding team, own projects end-to-end, and help define engineering best practices from the ground up. The role offers significant autonomy and direct influence over both product direction and technical architecture. What You’ll Do Build and scale complex data workflows across web applications (React, Next.js) and desktop tools (Python) Design and optimize high-throughput data pipelines operating under heavy load Collaborate closely with founders to define product strategy and ship features quickly Own projects end-to-end, from design through production Establish engineering best practices and support future team growth Tech Stack Frontend: TypeScript, JavaScript, React, Next.js Backend: Node.js, Python Infrastructure: Kubernetes, Kafka, Redis, Elasticsearch Cloud: AWS, GCP What They’re Lo