Robert Waithaka

Robert Waithaka works where project management meets hands-on AI. He holds a degree in project planning and management from Maasai Mara University, and since 2021 he has run freelance research and writing work through Fiverr, Upwork and EssayShark. Most of that work has meant handling several clients at once, keeping to deadlines and turning loose requirements into finished work that people can use.

Over the past year his focus has moved to building with AI. He built AI Rewriter, a fine-tuned language model that rewrites text so it reads naturally. He collected and cleaned the training data himself, fine-tuned the model with Unsloth on RunPod GPUs and put it online as a working web app. Doing the whole job end to end showed him how much the training data decides what a model does, an idea that runs through many posts on this site. He is working on a second version.

Since July 2026 he has also worked part-time as an AI trainer with organisations such as Handshake AI, where he evaluates images and checks whether model outputs really follow the prompt they were given.

He writes the beginner explainers on Learn AI Today, and he still takes on research and writing work in business, management, history and technology. Corrections and questions about any post are welcome through the contact page.