👋 Hey there, I'm Timothy Selevani Juma
I'm a passionate Full Stack Developer with over 3 years of experience building fun, challenging, and user-focused applications.
I thrive in both mobile and web development, blending creativity, structure, and analytics to deliver performant and elegant digital solutions.
Lately, I've been diving into the world of LLMs, exploring how they can be harnessed for real-world business applications — especially when working with unstructured or private datasets using tools like LangChain and LangGraph.
I’m always excited to collaborate with fellow developers, share ideas, and tackle the everyday puzzles that come with building great tech. Feel free to reach out on WhatsApp at +254748463195 — and just call me TJ 😊 “I believe that code, like life, is a constant act of creation — a way to bring order to chaos, and meaning to complexity.”
- ⚙️ Experienced in Node.js, Next.js, React, Flutter, and React Native
- 📊 Skilled in data analysis using Python, R, and visualization libraries (Plotly, Matplotlib)
- 🧠 Advocate of clean code, SOLID principles, and modular architecture
- 🎯 Passionate about problem-solving, innovation, and continuous learning
- 🎵 Outside coding, I enjoy geometry, music, art, and audiobooks
🧠 Personal Project | Python Desktop Application
A full-featured Library Management System for tracking patron attendance, book borrowing/returns, and payments for library activities.
Built with Python and PyQt5, featuring integrated analytics dashboards to visualize usage trends, revenue, and member statistics.
💻 Tech Stack:
🛒 Freelance Project | Full Stack (Next.js + Sanity CMS)
Built an end-to-end e-commerce platform for selling computing devices.
Integrated Clerk authentication and Mpesa payments (IntaSend) with a centralized CMS for managing inventory.
💻 Tech Stack:
📲 Personal Project | Flutter + Node.js
Developed a cross-platform media gallery app featuring media playback, JWT authentication, and image caching.
Implemented BLoC architecture and MVC backend design for maintainability.
💻 Tech Stack:
🛒 Freelance Project | React Native
Built a react native application using Expo and was able to print receipts automatically for a transaction. Used Bluetooth to connect to the thermal printer.
💻 Tech Stack:
🛒 Freelance Project | React Native
Built a React web page to promote the Dijifunzi platform. This program provides programming skills to kids and low-level children
💻 Tech Stack:
🛒 Freelance Project | React Native + Node js
Built a react native application using Expo, powered by a NodeJS backend. This was a demo dating application that could match-make matches for profiles and includes chat features.
💻 Tech Stack:
🌐 Source Code → 🌐 Source Code →
💬 Freelance Project | AI + NLP Application
Developed a smart chatbot using PyTorch and FastAPI, designed to identify user intents and automate service requests such as OTP generation and booking initiation.
💻 Tech Stack:
📈 Freelance Project | Data Science & Backend Analytics
Built forecasting models using ARIMA, SARIMAX, and Linear Regression to predict transportation revenue.
Implemented FastAPI endpoints to serve statistical insights and time-series decomposition.
💻 Tech Stack:
🛒 School Project | Nodejs + ejs+ python
Built a NodeJS application running on the EJS view engine and used Python for machine learning capabilities. The system was able to generate a timetable without any collisions easily using integer/linear programming
💻 Tech Stack:
🏢 Internship | Backend Engineering
Contributed to the development of secure, modular APIs using ExpressJS, Prisma ORM, and PassportJS for authentication.
Implemented structured logging and error handling for improved app stability.
💻 Tech Stack:
“A dreamer wakes inside the dream.” ✨