Tatenda P.

● Fine-tuned and enhanced the Math Reasoning capabilities and STEM knowledge base of large language models (LLMs) through Prompt Engineering, Reinforcement Learning from Human Feedback (RLHF) and Supervised Fine Tuning (SFT) techniques according to client requirements, improving domain-specific accuracy and contextual understanding by over 60%

● Analyzed and annotated complex conversations on general knowledge, humanities, and social sciences, to train AI models on reasoning, tone, and accuracy, ensuring alignment with helpfulness, honesty, and harmlessness traits

● Created detailed step-by-step annotation workflows, helping improve how the system responded to user queries, especially in technical contexts.

● Provided structured feedback on model outputs and task guidelines, contributing to documentation and process refinement

● Handled day-to-day customer support via email and live chat, maintaining a 95% satisfaction rate.

● Processed orders, handled complaints, and resolved delivery issues while updating listings and support documentation.

● Developed and executed digital marketing strategies on Facebook and Instagram, increasing follower engagement by 15%

and driving a 30% increase in website traffic over six months

Managed content publishing on Ghost CMS, ensuring posts were SEO-optimised for maximum reach.

Developed and implemented a strategic social media plan on X (Twitter) and Pinterest to promote content and drive

traffic.

Monitored engagement metrics to refine content strategy and posting schedules.

Collaborated with stakeholders to align blog topics with brand messaging and audience interests.