Senior Full-Stack Engineer (Python & React) at Factored in Remote

Fully remote | Complete engagement job Founded in Palo Alto by Dr. Andrew Ng and Israel Niezen, Factored helps U.S. companies build and scale world-class AI, ML, and Data teams, powered by the top 1% of LATAM talent, with a defining purpose: To empower brilliant humans, unleash their potential, and amplify their impact in the world. At Factored, you’ll be part of a community that values learning, ownership, and authenticity, where your growth is personal and your ideas matter. We’re transparent, curious, and collaborative. We strive for excellence, celebrate diversity, encourage curiosity, and build an environment where you can truly thrive. We seek a skilled Full-Stack Engineer with React and Python expertise to join our dynamic development team. As a Full-stack Engineer, you will contribute to designing, developing, and implementing cutting-edge applications. You will be responsible for both backend and frontend development, utilizing your strong programming skills and experience with React and Python. Functional Responsibilities: Build responsive and interactive web applications using React and TypeScript, focusing on performance, usability, and component-driven UI architecture. Design and implement RESTful or GraphQL APIs using Python frameworks such as FastAPI, Django, or Flask. Develop and optimize database schemas (PostgreSQL, MySQL, or NoSQL) and ensure smooth data integration between backend, AI, and frontend systems. Collaborate with AI/ML engineers to integrate Generative AI components—such as LLM APIs, RAG architectures, and agent-driven workflows—into the application. Deploy and maintain applications on cloud platforms (AWS preferred, but Azure or GCP experience is also welcome) using containerization and CI/CD pipelines. Use AI coding tools and assistants to accelerate development, debugging, and rapid iteration of production features. Write and maintain unit and integration tests for both frontend and backend using tools like Jest, pytest, or Playwright. Ensure quality and reliability through basic observability, including structured logging and error monitoring. Work closely with designers, product managers, and stakeholders to translate product ideas into high-quality, scalable solutions. Stay current with emerging technologies in web development and AI, specifically regarding LLM orchestration and development workflow optimizations. Qualifications: 5+ years of experience as a Full-Stack Engineer, working across both frontend and backend systems. Strong proficiency in Python and experience with frameworks such as FastAPI, Django, or Flask. Solid experience with JavaScript/TypeScript and React, including modern state management (e.g., Redux, Zustand, or Context API). Comfortable designing and consuming RESTful or GraphQL APIs and integrating with third-party services. Hands-on experience with SQL/NoSQL and familiarity with data modeling and performance optimization. Hands-on experience with LLM integration (e.g., Claude, OpenAI, or Gemini) in production applications. Proficiency with AI coding assistants and a clear understanding of how to integrate them into a professional development workflow. Working knowledge of cloud platforms (AWS, Azure, or GCP), including deployment and basic infrastructure management. Experience with CI/CD pipelines, testing frameworks, and version control (Git). Strong problem-solving and collaboration skills, with a proactive and curious mindset. Excellent communication skills in English, both written and verbal. Our Benefits: Ownership through equity participation. Annual company retreat. Education bonus for continuous learning. Company-wide winter break. Paid time off. Optional in-person events and meetups. Tailored career roadmaps. High-performance culture. At Factored, we believe that passionate, smart people expect honesty and transparency, as well as the freedom to do the best work of their lives while learning and growing as much as possible. Great people enjoy working with other passionate, smart people, so we believe in hiring right, and are very selective about who joins our team. Once we hire you, we will invest in you and support your career and professional growth in many meaningful ways. We hire people who are supremely intelligent and talented, but we recognize that intelligence is not enough. Perhaps more importantly, we look for those who are also passionate about our mission and are honest, diligent, collaborative, kind to others, and fun to be around. Life is too short to work with people who don’t inspire you. We are a transparent workplace, where EVERYBODY has a voice in building OUR company, and where learning and growth are available to everyone based on their merits, not just on stamps on their resume. As impressive as some of the stamps on our resumes are, we recognize that human talent and passion exist everywhere, and come from many backgrounds, so stamps matter much less than results. All of us are dedicated doers and are highly energetic, focusing vehemently on execution because we know that the best learning happens by doing. We recognize that we are creating OUR COMPANY TOGETHER, which is not only a high-performing fast-growing business but is changing the way the world perceives the quality of technical talent in Latin America. We are fueled by the great positive impact we are making in the places where we do business and are committed to accelerating careers and investing in hundreds (and hopefully thousands) of highly talented data science engineers and data analysts. In short, our business is about people, so we hire the best people and invest as much as possible in making them fall in love with their work, their learning, and their mission.  When not nerding out on data science, we love to make music together, play sports, play games, dance salsa, cook delicious food, brew the best coffee, throw the best parties, and generally have a great time with each other.