I will build production llm apps with langgraph agents, rag pipelines and evaluations


Vetted Pro
Top Rated
Gig Summary
Vetted by Fiverr Pro
Safiullah R was selected by the Fiverr Pro team for their expertise.
About this gig
LLM applications engineered for production: RAG pipelines and LangGraph agents with evaluations, guardrails and monitoring, for teams whose prototype works in a demo but not reliably with real users.
What this covers
- Review of your current LLM, RAG or agent system, with a written list of failure cases
- Evaluation datasets and automated tests for answer accuracy, retrieval quality and tool calls
- New build or rebuild with LangGraph, LangChain or LlamaIndex, structured outputs and fallbacks
- Guardrails, cost and latency tuning, caching and model routing
- Tracing and dashboards (LangSmith, Langfuse or OpenTelemetry)
How it works
- Access to the code and a sample of real queries
- Baseline measurement, then each change measured against it
- Report, merged code and a handover call
Background
Machine-learning researcher focused on reliable AI (calibration and failure analysis). Top Rated seller and Fiverr Pro in AI and software development, with 100+ completed orders since 2022.
Please message me with a short description of your system and what is going wrong before ordering.
Get to know Safiullah R
Vetted Pro
AI engineer for agents, RAG and production LLM apps
Top Rated
Safiullah R is part of the Fiverr Pro catalog and has been hand-picked by a dedicated Fiverr Pro team for their skills and expertise.
Vetted for
AI Development
Software Development
- FromPakistan
- Member sinceNov 2022
- Avg. response time1 hour
- Last delivery1 month
Languages
Sindhi, Urdu, English
My Portfolio
Other AI Development Services I Offer
FAQ
Do you need access to production?
No. A staging copy and a sample of real, anonymised queries are enough to measure and fix the system.
What does an evaluation set look like?
A few dozen to a few hundred real questions or tasks with expected answers, scored automatically on every change so regressions show up.
Can you work on my existing codebase?
Yes. I first read and run the code, then send a short note on what I would change before writing anything new.
Which AI models do you use?
OpenAI, Anthropic Claude and Google Gemini through their APIs, or open-weight models (Llama, Qwen, Mistral) when data must stay on your servers. The choice follows quality, cost and privacy needs.
14 reviews for this Gig
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Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
S 
sheryl5676

United States
Ongoing collaborationExceptional Python Developer and Outstanding Experience Review: I recently collaborated with safiullah_rahu3 on a Python project involving OpenAI's API and LangChain and was thoroughly impressed by their professionalism, skill level, and communication. From the outset, they demonstrated a deep understanding...
$1,000-$2,500
Price
Helpful?M 
munsifrazathebo

Pakistan
Ongoing collaborationSafiullah is very professional and expert in his domain, he delivered the required work before the deadline as I needed it quickly. Highly recommend him for tasks related to Artificial Intelligence.
$50
Price
2 days
Duration
Helpful?M 
munsifrazathebo

Pakistan
Ongoing collaborationSafiullah has a good understanding of AI and related fields, with good communication skills and professionalism. Highly recommended.
$50
Price
5 days
Duration
Helpful?M mudar_asaid

Germany
I am a student and still do not have enough experience in coding; safiuallh solved the issue in my code. thanks to him
$100-$200
Price
1 day
Duration
Helpful?M maxvankekerenit

Netherlands
Ongoing collaborationVery happy with the delivery of the project. It was fast, professional and overall very happy with the result.
$200-$400
Price
7 days
Duration
Helpful?
14 reviews for this Gig
| (14) | ||
| (0) | ||
| (0) | ||
| (0) | ||
| (0) |
Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
S 
sheryl5676

United States
Ongoing collaborationExceptional Python Developer and Outstanding Experience Review: I recently collaborated with safiullah_rahu3 on a Python project involving OpenAI's API and LangChain and was thoroughly impressed by their professionalism, skill level, and communication. From the outset, they demonstrated a deep understanding...
$1,000-$2,500
Price
Helpful?M 
munsifrazathebo

Pakistan
Ongoing collaborationSafiullah is very professional and expert in his domain, he delivered the required work before the deadline as I needed it quickly. Highly recommend him for tasks related to Artificial Intelligence.
$50
Price
2 days
Duration
Helpful?M 
munsifrazathebo

Pakistan
Ongoing collaborationSafiullah has a good understanding of AI and related fields, with good communication skills and professionalism. Highly recommended.
$50
Price
5 days
Duration
Helpful?M mudar_asaid

Germany
I am a student and still do not have enough experience in coding; safiuallh solved the issue in my code. thanks to him
$100-$200
Price
1 day
Duration
Helpful?M maxvankekerenit

Netherlands
Ongoing collaborationVery happy with the delivery of the project. It was fast, professional and overall very happy with the result.
$200-$400
Price
7 days
Duration
Helpful?

