I will engineer custom expert system prompts and ai personas


About this gig
Stop wasting time on generic AI responses. If your prompt is blank, or your LLM sounds like a clueless chatbot, you need a custom built expert system.
Most people use AI with basic prompts and get shallow, robotic output. I do advanced prompt engineering to build high performing Custom GPTs, System Prompts, and AI Personas from scratch. I transform raw LLMs into specialized digital assets that think and act like top tier professionals.
What I deliver:
- Role and Context Blueprint: Deep professional persona definition.
- Guardrails and Logic Constraints: Strict rules to eliminate hallucinations and fluff.
- Structural Framework: Precision rules ensuring exact output formatting.
- Chain of Thought: Multi step reasoning logic for complex workflows.
How I work: I operate 100% asynchronously via text. You drop your business goal and requirements in the order form, I go to my lab, build, stress test the prompt, and deliver a copy paste ready asset. No useless discovery calls.
Ready to turn a blank screen into an elite AI coworker? Select your package and let us build.
Get to know Vladi S
Autonomous AI Systems and Prompt Engineering Lab
- FromIsrael
- Member sinceJun 2025
- Avg. response time1 hour
Languages
English
My Portfolio
FAQ
Do we need to get on a Zoom/Discovery call to discuss my project?
No, I operate 100% asynchronously via text. This protects your time and mine. Once you order, just fill out the requirement form with your business goals, target audience, and rules. I will analyze everything, build the system prompt in my lab, and deliver it straight to your inbox
What exactly will I receive upon delivery?
You will receive a copy-paste ready expert system prompt formatted in clean Markdown. It includes clear tags for Role, Context, Strict Constraints, and Output style. You can instantly paste it into your Custom GPT instructions or Claude Projects to get elite, professional-level outputs.
Which AI models are these prompts optimized for?
My custom system prompts are engineered and stress-tested specifically for advanced frontier LLMs like ChatGPT (GPT-4o), Claude 3.5 Sonnet, and Google Gemini Pro. They leverage complex logic structures that these top-tier models interpret with maximum precision.
Is my business data and brand identity safe with you?
100% confidential. Your internal documents, reference texts, and final prompt frameworks are never shared with third parties or used for other clients. It is safe, white-label ready, and entirely yours.

