Expert Prompt Engineer for Advanced AI Prompt Systems (GPT-4/5, Claude, Gemini)

I’m looking for a skilled Prompt Engineer to build a complete library of high-performance prompts used for text generation, marketing content, visuals, video scripts, and conversational agents. This project requires clear thinking, strong writing ability, and the capacity to create prompts that are stable, consistent, and reusable across GPT-4/5, Claude, Gemini, and similar models. Mission Design a set of optimized prompts to support: text generation visual and image prompts short video scripts marketing and advertising copy storytelling autonomous agent behaviours These prompts will be used inside structured workflows for automation and content production. Responsibilities Create advanced prompts (marketing, narrative, ads, video, multilingual, etc.) Build a categorized prompt library (templates + variations) Maintain coherence, clarity, and consistent tone Test outputs and refine prompts based on performance Provide clear documentation for usage and scaling Required Skills Excellent writing and logical structuring Experience with GPT-4/5, Claude, Gemini Demonstrated ability to design prompt systems (not just single prompts) Understanding of storytelling and marketing psychology Bonus: experience with autonomous agents or multimodal generation Deliverables 40–80 categorized prompts Prompt sets for visuals, video scripts, product descriptions, and ads A structured prompt pack defining voice, style, personality Documentation describing structure, parameters, and workflow integration Project Duration Approx. 1 month Milestone-based delivery Collaboration Style Clear written communication, fast responses, structured feedback, milestone validation. Budget Fixed price: 50 USD Payment released after each milestone is validated. If you have previous work related to prompts or AI content generation, feel free to share samples. Apply tot his job