You will get a custom Claude AI system prompt or agent skill built for your workflow
Rising Talent
Project details
Generic 'act as an expert' prompts fall apart the moment a real user throws an edge case at them. I build Claude system prompts and custom skills the way I'd build one for a production app: clear role definition, explicit constraints, few-shot examples where they help, and testing against the weird inputs that break most prompts. Whether you need a single reusable skill, a full persona/system prompt for a chatbot or internal tool, or a multi-skill agent setup, I write it so it holds up under real usage -- not just the happy path demo. You get clean, documented, copy-paste-ready output plus a short explanation of why it's structured the way it is, so you're not locked into needing me for every future tweak.
AI Algorithms
Large Language Model, Transformer ModelAI Applications
AI Chatbot, AI Content Creation, Conversational AI, Natural Language Generation, Natural Language UnderstandingAI Development Language
PythonAI Models
GPT-4What's included
| Service Tiers |
Starter
$25
|
Standard
$150
|
Advanced
$400
|
|---|---|---|---|
| Delivery Time | 3 days | 5 days | 10 days |
Number of Revisions | 2 | 3 | 5 |
AI Model Integration | |||
Batch Normalization | - | - | - |
Database Integration | - | - | - |
Detailed Code Comments | - | - | - |
Image Upscaling | - | - | - |
MLOps | - | - | - |
Model Deployment | - | - | - |
Model Documentation | - | - | - |
Model Monitoring | - | - | - |
Model Testing & Optimization | - | - | - |
Model Tuning | - | - | - |
Natural Language Processing | - | - | - |
NLP Tokenization | - | - | - |
Pre-Training | - | - | - |
Prompt Engineering | |||
Setup File | - | - | - |
Source Code | - | - |
Frequently asked questions
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Nick R.
Aug 11, 2026
AI Automation Engineer – Claude Agents & MCP Server Integration (Freelance/Remote)
I hired Paul to build a custom Claude agent with MCP server integration, and I couldn't be more impressed with the results.
What made them stand out:
Deep technical expertise – they don't just prompt, they build. They understand token costs, model limitations, and when to write code instead of relying on prompts.
Cost-conscious – they audited our prompt chains and cut API costs by over 30% without sacrificing quality. That alone paid for the project.
Clean, documented code – I received architecture diagrams, handover notes, and maintainable code – not a black box.
Proactive communication – they flagged risks early, proposed better alternatives, and always kept me in the loop.
Accountable for outcomes – they delivered exactly what we agreed on, on time, and within budget.
This wasn't just a freelancer hitting milestones – they genuinely cared about the project's long-term success. I've already hired them for a second project and plan to continue the partnership.
If you need a battle-tested AI automation engineer who builds systems that actually work in production – this is your person. Highly recommended.
What made them stand out:
Deep technical expertise – they don't just prompt, they build. They understand token costs, model limitations, and when to write code instead of relying on prompts.
Cost-conscious – they audited our prompt chains and cut API costs by over 30% without sacrificing quality. That alone paid for the project.
Clean, documented code – I received architecture diagrams, handover notes, and maintainable code – not a black box.
Proactive communication – they flagged risks early, proposed better alternatives, and always kept me in the loop.
Accountable for outcomes – they delivered exactly what we agreed on, on time, and within budget.
This wasn't just a freelancer hitting milestones – they genuinely cared about the project's long-term success. I've already hired them for a second project and plan to continue the partnership.
If you need a battle-tested AI automation engineer who builds systems that actually work in production – this is your person. Highly recommended.
About Paul
AI Automation Engineer | Claude Agents, MCP Servers & Prompt Audits
Leipzig, Germany - 3:02 am local time
That business is small: a handful of self-published KDP titles and a Gumroad shop for ADHD and autism planners. Behind it runs an agent system I wrote myself. It drafts listings, checks files before they go out, and keeps the catalogue tidy. So a system prompt or an MCP server isn't theory to me. It's the thing I fix on a Tuesday when it breaks.
What I take on:
• Prompt and agent audits. You have something that works four times out of five and nobody knows why the fifth one fails. I find out.
• Claude system prompts and agent skills, written and actually tested against the cases you care about.
• MCP server setup, so your tools talk to the model instead of you copy-pasting.
• Document and contract analysis: extract, compare, flag.
• Spreadsheet and Google Sheets automation.
Straight about where I stand: I'm new on Upwork. One paid contract so far, closed at 5.0 stars. I'd rather tell you that than pad a profile.
I'm in Germany, CET. English or German, either is fine.
Steps for completing your project
After purchasing the project, send requirements so Paul can start the project.
Delivery time starts when Paul receives requirements from you.
Paul works on your project following the steps below.
Revisions may occur after the delivery date.
Scope & Discovery
I map out the exact behavior, tone, and edge cases the skill or system prompt needs to handle.
Build & Iterate
I draft the skill/prompt, test it against real examples, and refine wording until outputs are consistent.