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Senior Full Stack Developer at Pavago. Job Title:. Senior Full Stack Developer. Position Type:. Full-Time Contractor. Working Hours:. U.S. Hours. About Pavago. Pavago is hiring a . Senior Full Stack Developer. on behalf of a fast-scaling U.S. startup. This is a unique opportunity for a highly capable developer to own the full-stack development of a brand-new platform and grow into a . CTO-level leadership role. . Our ideal candidate is someone who loves building, is passionate about architecture and technology leadership, and has a solid understanding of modern development practices including AI integrations and scalable, real-time systems.. Responsibilities. . . Lead the Platform Build: . Own the development of a secure, scalable, high-performing full-stack application from ground zero.. . . Define the Stack: . Propose and implement a modern, future-ready tech stack that may include React, Next.js, NestJS, PostgreSQL, Redis, and AWS.. . . Backend Engineering: . Build robust REST APIs, design relational data models, implement middleware logic, and ensure endpoint protection using technologies such as Node.js, NestJS, and Redis.. . . Frontend Development: . Craft highly responsive and accessible UIs using React, Redux Toolkit, Tailwind CSS, and component-driven architecture.. . . AI & Real-Time Features: . Integrate AI-powered features such as LLM-based text processing, basic NLP functionalities, and real-time updates using WebSockets or similar protocols.. . . DevOps & Cloud Deployment: . Set up and manage deployments using AWS (especially EC2), Vercel, or GCP. Implement CI/CD pipelines, monitoring, and alerts.. . . Security & Access Control: . Establish RBAC (Role-Based Access Control), secure authentication/authorization flows, caching strategies, and endpoint protections.. . . Collaborate with Stakeholders: . Work closely with the founder to align development with business vision and user needs. Later, help build and lead the engineering team.. . . Documentation & Team Readiness: . Maintain high-quality documentation, establish best practices, and mentor future technical hires.. . What Makes You a Great Fit. . . Builder-Minded Leader:. You've built production-ready full-stack systems independently and thrive in fast-moving environments.. . . Tech Strategist:. You can make sound architectural decisions, justify your stack, and plan for scale.. . . AI-Curious & Capable:. You have hands-on exposure to WebSockets, LLMs, or NLP whether through projects or experimentation.. . . Security-Conscious:. You take endpoint protection, RBAC, token management, and data security seriously.. . . High Ownership:. You don’t wait to be told rather you see a gap, and you fill it.. . . Strong Communicator:. You write and speak with clarity, and you’re collaborative in remote-first teams.. .  . Required Skills & Experience. . . Full stack experience: . 5+ years of experince ideally in startups or high-ownership environments.. . . Frontend:. Proficiency in React, Redux Toolkit, Next.js, Tailwind CSS.. . . Backend:. Strong knowledge of Node.js, NestJS, REST API development, Express JS.. . . Database:. Experience with PostgreSQL, Prisma, MongoDB, and Redis for caching.. . . Security & Access Control:. Strong implementation skills with RBAC models, JWT/OAuth token handling, and endpoint protection.. . . DevOps:. Deployment experience with AWS EC2 (preferred), GCP, or Vercel; CI/CD via GitHub Actions or CircleCI.. . . Web Sockets & Real-Time Apps:. Comfortable implementing real-time data flows (e.g., using Socket.io or similar).. . . AI/NLP/LLM Exposure:. Experience or strong interest in integrating AI features such as chat interfaces, text summarization, or NLP.. . . Architecture:. Familiar with microservices, middlewares, modular system design, and scalable infrastructures.. . . Collaboration:. Git, GitHub, Notion, Slack, Zoom.. .  . What Does a Typical Day Look Like?. You’ll begin your day by reviewing tasks in GitHub or Notion. Most days involve a mix of coding (backend APIs, frontend UI, or DevOps tasks), testing, and real-time feature development. You might be integrating an AI-powered chat module, optimizing database queries, deploying to AWS EC2, or refining RBAC-based access flows. You'll also join calls with the founder to prioritize next steps and share architectural input. The work is high-impact, hands-on, and foundational.. Interview Process. . . Intro Call:. A quick conversation to align on goals and experience.. . . Technical Deep Dive:. Discuss your previous work, decisions, and approach to scalable systems.. . . Live Coding or Take-Home Challenge:. Showcase your thought process and technical depth.. . . Founder Interview:. Align on product vision, leadership expectations, and long-term role.. . . Reference & Background Check: . Conduct swift verification of your references and past employment details.. . . Ready to Apply?. If you’re a hands-on full stack developer with a passion for architecture, leadership, and innovation including AI and real-time systems this is your moment. You’ll help build the foundation of a product that matters, and grow into a leadership role as the team scales. If you thrive in early-stage environments and are excited about owning both code and technical direction, we want to hear from you..  . Company Location: South Africa.