๐ค Senior AI Consultant & Conversation Designer | Conversational AI Specialist | 7+ years commercial experience | Top Rated Plus | Expert Vetted | MVPs & Production-ready AI Applications
Most companies who automate their interactions end up with robotic, frustrating AI that drives users away. I help businesses build advanced AI Solutions that feel close to human, understand context, and drive real business results. With my academic background in Linguistics and AI, I design natural sounding AI Agents that imitate human speech and guide users to your target actions.
I have over 7 years of experience advanced building AI Assistants and Voice Agents, offering consultations on chatbot development and conversation design, and also teaching people to build chatbots themselves, giving mentoring sessions and workshops.
If your business needs an advanced AI Solution that sounds close to human, let's chat :)
====
#Chatbots #GPT4 #LLMs #Rasa #VoiceFlow #DialogFlow #Landbot #ManyChat # LangChain #OpenAI # RAG #VoiceBots #GenerativeAI #BlantAI #AirAI #Vapi #Prompt Engineering #N8N
====
โ What makes me different from other freelancers:
โฃ Full-cycle AI chatbot development services: from a business idea to production.
โฃ Business-oriented approach: I think about chatbots as a tool to solve a specific problem. I design chatbots with your business goals in mind and the problem you are trying to help your users solve.
โฃ User-centric: For any software project, including developing chatbots, it's very important to always keep users in mind. I do user research before the beginning of the project and validate my assumptions as soon as possible on real users.
โฃ Multidisciplinary: I am not just a full-stack developer. I have a background in Natural Language Processing and Artificial Intelligence and I understand Machine Learning and the mechanisms behind how chatbots actually work.
โฃ A linguist by education: My first education is in Linguistics and I understand how language works. This helps me design conversations that sound natural and are user-friendly.
โฃ I value transparent and direct communication.
โฃ I value your time and I value my time and I prefer to deliver results quickly rather than doing work for the sake of work.
โฃ Based on the reviews, people think I'm a nice person to work with :)
====
โ How I can help:
โฃ Starting AI Assistant project:
With the overwhelming amount of AI technologies available, itโs easy to get lost when trying to build an MVP quickly and cost-effectively to validate your idea. I offer consultations to help you polish your AI strategy and select the right tools, ensuring you build an MVP thatโs aligned with your business goals.
โฃ Full-cycle Advanced AI Chatbot Development:
I offer full-cycle AI Chatbot Development services, from start to finish. For chatbot development I use GPT-4, Rasa, DialogFlow, ManyChat, Landbot and VoiceFlow. For backend I use Python. For frontend I use JavaScript (TypeScript).
โฃ Data & conversation design:
Creating AI solutions that sound natural is hard, you need to know what constitutes a good conversation in your specific domain. If you're looking to design conversations that feel authentic, I use a data-driven approach to analyse real-world conversations and design playbooks and prompts that help create human-like conversations.
โฃ Audit of your existing chatbot:
Is your chatbot struggling to deliver performance and you lack in-house expertise to bring it to the next level? I offer a chatbot audit to provide strategy for improvement. I audit conversation design to help rewrite dialogues to feel more natural, review technical implementation to improve AI quality, and analyse conversation logs to identify feature gaps.
โฃ AI Workshops & Training sessions:
AI is becoming a core part of business, so companies want to grow expertise in-house. If you are looking to train your team, I offer hands-on workshops to help teams design, develop, and optimise chatbots that drive real results.
โฃ Chatbot UI:
I also offer help with creating custom chatbot widgets for your website.
====
โ Tech Stack:
โฃ LLMs, advanced RAG & finetuning, prompt engineering
โฃ Chatbots: LangChain, VoiceFlow, OpenAI, DialogFlow, Rasa, ManyChat
โฃ Voice: Vapi, Bland AI, Air AI, Twilio
โฃ Vector Databases: LanceDB, Pinecone, weviate
โฃ Generative AI: OpenAI, Antropic, Gemini, LangChain, LiteLLM
โฃ Automations: Make, Zapier, n8n, CRM, Replit
โฃ Deployment: Docker, AWS
โฃ Integrations: web, WhatsApp, Telegram, Messenger, mobile apps
โฃ Speech technology: Whisper, Deepgram, Eleven Labs
โฃ Programming Languages: Python, JavaScript
====
โ Featured projects:
โฃ Property Management AI Assistant (LiteLLM, OpenAI, FastAPI)
โฃ Voice Agent for Real Estate (Vapi, ElevenLabs, OpenAI)
โฃ Language Learning AI Agent (Rasa)
โฃ Financial Assistant Chatbot (DialogFlow)
For more see my portfolio below.
Artificial Intelligence
Natural Language Processing
Chatbot
GPT-4
ChatGPT
Bot Development
Chatbot Development
ManyChat
Conversational AI
Generative AI
LLM Prompt Engineering
AI Chatbot
AI Consulting
GPT Chatbot
n8n
Stan F.
Utrecht, Netherlands
$140/hr
5.0
10 jobs
AI developer from the Netherlands, specialised in NLP, with an academic background in Linguistics (bachelor's), Text Mining (master's) and AI (research master's). I have extensive knowledge of language modeling and prompt engineering. My main area of interest is (bio)medical AI modeling.
Biggest achievement: The Amsterdam hospital started using my clinical note classification model. Hundreds of doctors and nurses are interacting with my model on a daily basis. It is projected that the use of this model can reduce the amount of in-patient falls by 15-30%.
Field of interest: biomedical text mining, AI in education
Project History: clinical note classification for AUMC (the Amsterdam hospital), supervising a PhD student on "metastasized lung cancer primary tumor location detection", rehabilitation curve prediction for oncology patients, adverse event extraction for healthcare tech providers, text generation for several commercial companies etc.
If you are looking for a reliable, creative and experienced NLP dev/prompt engineer, you have come to the right place. Send me a message and we can discuss how I can help your project forward.
Artificial Intelligence
Data Science
Deep Learning
Machine Learning
Natural Language Processing
Python
TensorFlow
Natural Language Generation
Sentiment Analysis
GPT-4
GPT-3
Computational Linguistics
Prompt Engineering
LLM Prompt Engineering
Generative AI Prompt Engineering
Ivan P.
Maastricht, Netherlands
$18/hr
5.0
4 jobs
I am Ivan (Vanya) Poliakov, an ML engineer and a freelancer
specializing in AI for SMM, Computer Vision and taking AI Web Apps
from concept to production.
Recent work:
- Translation and content adaptation platform for X accounts
(300k+ followers) using LLM agents with topic clustering and few-shot learning
- Agentic frameworks for automated content suggestions
- A/B testing pipelines for viral content optimization
Available for:
- Social media agents and LLM integration
- AI for advertisements
- Content generation and recommendation systems
- Computer Vision projects
- Data processing and scraping
- ML/GenAI prototypes and further scaling
- C++ and Python development
Fast turnaround, ready to start immediately
Data Science
Deep Learning
Python
C++
PyTorch
Python Scikit-Learn
LangChain
FastAPI
PostgreSQL
Docker
Google Cloud Platform
React
Qt Framework
Multimodal Large Language Model
Agent GPT
Ameer Hamza S.
Amstelveen, Netherlands
$80/hr
4.1
23 jobs
Hello! I'm a Senior AI/ML Engineer with 11+ years of hands-on experience
building production-grade intelligent systems โ from classic machine learning
pipelines to cutting-edge Generative AI, Agentic frameworks, and LLM-powered
applications.
I don't just build models โ I build AI products that ship, scale, and deliver
measurable business value. Whether you need a smart automation agent, a
custom RAG pipeline, or a full AI-integrated web platform, I bring the full
stack: research โ architecture โ deployment โ iteration.
โโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโ
๐ What I Build For You
โโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโ
๐ง Generative & Agentic AI
โธ Custom LLM applications using OpenAI, Anthropic (Claude), Mistral, Llama
โธ Autonomous AI Agents with tool use, memory, and multi-step reasoning
โธ Multi-Agent Systems โ CrewAI, AutoGen, LangGraph, LangChain, LangFlow
โธ RAG pipelines + Vector Search (FAISS, Chroma, Pinecone, Weaviate, Qdrant)
โธ Prompt Engineering, Fine-Tuning (LoRA, QLoRA, PEFT), and RLHF
๐ค Machine Learning & Deep Learning
โธ End-to-end ML pipelines: data โ training โ evaluation โ deployment
โธ Frameworks: PyTorch, TensorFlow, Keras, Scikit-learn, Spark MLLib
โธ Architectures: Transformers, CNNs, RNNs, LSTMs, GANs, Autoencoders
โธ MLOps: experiment tracking (MLflow, W&B), model versioning, CI/CD for ML
๐ฌ NLP & Language AI
โธ Transformer models: BERT, RoBERTa, GPT, T5, Phi, Gemma
โธ Text classification, NER, summarization, semantic search, chatbots
โธ Hugging Face ecosystem, spaCy, Rasa, fastText
๐ Data Engineering & Analytics
โธ ETL pipelines, feature engineering, data cleaning at scale
โธ Pandas, NumPy, Polars, Spark, Plotly, Matplotlib
๐ Full-Stack AI Integration
โธ REST APIs: FastAPI, Flask, Django
โธ Web scraping & automation: Scrapy, Selenium, Playwright, BeautifulSoup
โธ Cloud: AWS (SageMaker, Lambda, EC2), GCP (Vertex AI), Azure
โธ Containers: Docker, Kubernetes
โธ Frontend integration: React, Next.js, Streamlit, Gradio
โโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโ
โ Why Clients Choose Me
โโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโ
โ 11 years of real-world AI/ML delivery across industries
โ I communicate clearly โ no jargon unless you want it
โ I treat your deadline like my own
โ I build for production, not just POCs
โ Available for long-term engagement or focused sprints
Ready to turn your AI idea into a working product?
Let's talk. โฌ
Tell us what you need. Create your own job post or generate one with AI then filter talent matches.
Hire top talent fast
Consult, interview, and hire quickly, so you can meet the freelancers you're excited about.
Collaborate easily
Use Upwork to chat or video call, share files, and track project progress right from the app.
Payment simplified
Manage payments in one place with flexible billing options. Only pay for approved work, hourly or by milestone.
Don't just take our word for it
โUpwork provides an umbrella-level of security. I can see a talentโs work history and ratings. I can hold payments in escrow. I can communicate through Upwork Messages instead of working through my email address.โ
KD
Kim Darling
Emerald Tiger
โUpwork is the best platform to hire skilled professionals when we're not looking for a full-time employee. All the companies in our portfolio use Upwork to find talent across a wide range of fields.โ
DM
David Merry
Kinetic Investments
โOur very specific requirements can be a challengeโWith Upwork, weโre able to access a bigger community to ensure the success of our projects.โ
KK
Katja Krohn
Summa Linguae
How do I hire a NLP Engineer in the Netherlands on Upwork?
You can hire a NLP Engineer in the Netherlands on Upwork in four simple steps:
Create a job post tailored to your NLP Engineer project scope. We'll walk you through the process step by step.
Browse top NLP Engineer talent on Upwork and invite them to your project.
Once the proposals start flowing in, create a shortlist of top NLP Engineer profiles and interview.
Hire the right NLP Engineer for your project from Upwork, the world's largest work marketplace.
At Upwork, we believe talent staffing should be easy.
How much does it cost to hire a NLP Engineer?
Rates charged by NLP Engineers on Upwork can vary with a number of factors including experience, location, and market conditions. See hourly rates for in-demand skills on Upwork.
Why hire a NLP Engineer in the Netherlands on Upwork?
As the world's work marketplace, we connect highly-skilled freelance NLP Engineers and businesses and help them build trusted, long-term relationships so they can achieve more together. Let us help you build the dream NLP Engineer team you need to succeed.
Can I hire a NLP Engineer in the Netherlands within 24 hours on Upwork?
Depending on availability and the quality of your job post, it's entirely possible to sign up for Upwork and receive NLP Engineer proposals within 24 hours of posting a job description.