Benny – React, Python, Next.js

A smart inventory and sales management platform designed for mobile phone retail businesses in emerging markets. The product digitizes day-to-day shop operations by enabling real-time stock tracking down to device model, color, and IMEI, along with fast sales recording and automatic profit calculations. It provides low-stock and reorder alerts, daily sales reports delivered via messaging channels, and comprehensive repair and warranty tracking. The platform also maintains customer purchase histories and leverages AI-driven insights to help shop owners anticipate demand, optimize pricing, and improve margins.

• Designed and built the front-end and backend architecture from inception to production;
• Implemented real-time inventory and sales tracking, including profit calculations and low-stock alerts;
• Integrated WhatsApp reporting and M-Pesa payments;
• Built customer, repair, and warranty management features;
• Developed reusable front-end components and dashboards for non-technical users;
• Wrote unit, integration, and end-to-end tests and handled production debugging and deployments.

An open-source digital platform designed to support large-scale mental health interventions across distributed teams. Built with PostgreSQL, Next.js, and Node.js, the system centralizes complex workflows such as real-time data capture, clinical safeguarding processes, operational automation, and program monitoring. The platform was developed from the ground up and evolved into a production-grade system used at scale to support mental health programs.

• Developed and maintained a digital hub supporting 200,000+ students and 400 fellows;
• Integrated an AI-driven fidelity rating system to assess program quality and effectiveness;
• Built real-time reporting systems and interactive dashboards using React, Next.js, and Python;
• Designed and maintained scalable back-end architecture with Next.js, Prisma, PostgreSQL, and TypeScript;
• Collaborated on UI/UX improvements, boosting usability and adoption across programs;
• Led frontend development with React/Next.js, integrated with APIs.

A behavioral market research platform that shifts decision-making from stated preferences to observed behaviors. It enables companies to make strategic choices with statistical confidence, grounding insights in real user actions rather than self-reported data.

• Built automated survey systems to streamline AI-powered market research;
• Redesigned and optimized the agency’s website, improving performance and user experience;
• Developed data ingestion pipelines and optimized workflows for analytics and reporting;
• Enhanced data processing efficiency to deliver faster insights for clients;
• Implemented UI/UX improvements.

A mobile-first, integrated platform designed to enable precision agriculture at scale for smallholder farmers in low-resource environments. The system provides tools and insights to optimize farming practices, improve crop yields, and support sustainable agricultural operations.

• Designed and built the full-stack architecture from inception to production;
• Implemented farm, crop, and plant domain models with lifecycle tracking;
• Integrated weather and environmental data APIs to power forecasts and risk alerts;
• Built analytics pipelines and dashboards for farm performance insights.
• Implemented calendar-based scheduling and alerting systems for farm operations;
• Developed an AI-driven recommendation for agronomic decisions;
• Wrote unit, integration, and end-to-end tests.
• Handled deployment, monitoring, and production debugging.

A global trunk show and maker directory platform connecting makers with shoppers and collectors through in-person and scheduled events. The platform allowed makers to create profiles, showcase their work, list shops, and schedule shows. Users could discover makers, browse upcoming events, leave reviews, and sync calendar invites. Key features included maker portfolios, event scheduling, calendar integrations, customer reviews, shop listings, and location- or category-based discovery tools.

• Developed Next.js v14 web app with advanced filtering and admin dashboards;
• Built secure CRUD APIs and optimized PostgreSQL schemas with Prisma;
• Implemented CI/CD pipelines (GitHub Actions) and deployed via Heroku;
• Added bulk image upload and tagging features for shows and shops.