Senior Full Stack Engineer

Senior Full Stack Engineer (Python, FastAPI & AI-Assisted Development) – Remote Position Type: Full-Time, Remote Working Hours: U.S. Client Business Hours (with flexibility for sprint reviews, deployments, and production support) About the Role At Pavago , one of our clients is hiring a Senior Full Stack Engineer to architect, build, and scale a modern tax filing platform from the ground up. This isn’t just another software engineering role. You’ll own the architecture, backend services, frontend experience, and key technical decisions behind a mission-critical platform where security, accuracy, reliability, and scalability are essential. You’ll work extensively with AI-assisted development tools such as Cursor and Claude Code to accelerate development while maintaining exceptional engineering standards and code quality. If you enjoy solving complex technical challenges, building scalable systems, and taking ownership from architecture through deployment, this role is built for you. What You’ll Own Full-Stack Application Development Design, build, and maintain production-grade web applications. Develop secure backend services using Python and FastAPI. Build intuitive, responsive frontend interfaces for complex workflows. Design scalable REST APIs and service architectures. Integrate frontend and backend systems seamlessly. System Architecture & Technical Design Own end-to-end application architecture. Design scalable data models and service boundaries. Build systems o