Hello 👋🏻, I'm Roger Jacob

I'm a full stack engineer and founder who independently conceived, designed, and shipped Nexpenz — a production-grade AI-powered personal finance app for iOS, Android, and the web, built solo with no team or external funding. My Master's in Computer Application gave me the foundation, but taking a real product from Figma to the App Store end to end is what shaped how I truly think about engineering.

My engineering spans the full stack — React and React Native on the frontend, GraphQL APIs and backend services, cloud infrastructure with CI/CD pipelines, and AI integration throughout. I've built agentic AI systems, RAG pipelines, and MCP servers that connect live user data to large language models, while managing production deployments with automated monitoring and real-time alerting. Frontend tools like Redux, Next.js, and Mantine UI are part of my daily toolkit, but owning a product end to end — from API design to cloud deployment to AI — is where I've grown most.

A firm believer in collaboration, I thrive in diverse teams, valuing open communication and shared ownership to bring ideas to life. I'm also a continuous learner, consistently exploring new libraries, design patterns, and AI-powered tools like Claude Code and ChatGPT to enhance development speed and decision-making. These tools help me streamline workflows and focus on building thoughtful, high-impact solutions.

If you're looking for a full stack engineer who can build, ship, and scale — connect with me today!