I will provide expert prompt engineering for llms and ai website


Level 2
About this gig
Are you looking for an expert prompt engineer to make GPT-4o, ChatGPT, Claude 4, or Gemini answer exactly the way you want? Look no further!
I'm Stas Sorokin, an experienced developer, and I transform ideas into high-performance AI applications with laser-precise prompts and airtight API integrations.
Whether you need 10 spot-on prompts for a chatbot, a multi-workflow prompt suite, or an enterprise-scale roadmap with A/B testing and compliance safeguards, I have the skills and experience to deliver results that save time, cut token costs, and boost accuracy.
Technologies / Models:
- Python, Node.js, TypeScript
- REST, GraphQL, LangChain, RAG pipelines
- GPT-4o | ChatGPT | Claude 4 | Gemini | Llama 4
Services:
- Prompt design & optimization
- LLM integration & token-cost tuning
- Security / HIPAA & GDPR review
- Performance dashboards & metrics
- Code snippets for web, SaaS, mobile
Why Choose Me?
- Extensive AI & full-stack experience
- Iterative testingno trial-and-error for you
- Enterprise-grade support & clear SLAs
- Top-notch service
Unlock AI automation, sales chatbots, data analytics & content engines without trial-and-error. Contact now and let's supercharge your project together!
Get to know Stas Sorokin
Expert Software Development Full Stack Lead Engineer
Level 2
- FromIsrael
- Member sinceJul 2017
- Avg. response time1 hour
- Last delivery1 day
Languages
English, Russian

Vercel
Software Development

Fiverr
Internet Software & Services
My Portfolio
Other AI Development Services I Offer
FAQ
What makes your prompt engineering different?
I A/B-test against target KPIs, tweak tone & format, then ship code-ready snippets. You launch with proven, high-accuracy outputs—no costly trial-and-error.
Which AI models do you support?
GPT ( All models), ChatGPT, Claude 3, Google Gemini, Llama 2, Cohere Command, plus custom fine-tuned LLMs on AWS or Azure.
Can you integrate prompts into my app?
Yes—Python or Node.js/TypeScript with REST / GraphQL calls. Drop-in snippets, env variables, and error handling are included.
Do you fine-tune models or only write prompts?
Enterprise includes fine-tuning plans: dataset prep, hyper-parameter grids, and orchestration on OpenAI or HuggingFace.
How do revisions work?
Personal 2, Business 4, Enterprise unlimited (30 days). Each round tightens style, tone, or accuracy from your feedback.
How do you ensure data security & compliance?
HIPAA/GDPR guidance, PII redaction, and private-VPC or Azure OpenAI routing keep your data safe.
Can you reduce token costs?
I optimize context, add caching & RAG, often cutting spend effectively.
Will you sign an NDA?
Absolutely—yours or mine, signed before kickoff.
What if I’m not satisfied?
No-risk pledge: refund issued before any negative feedback. I aim for 5 every time.
How is the strategy call run?
Enterprise gets a 60-min Zoom/Meet, recorded and summarized, covering roadmap, metrics, ROI, and next steps.
