Matvii Matin
Private message
Offer work
Odessa,
Ukraine
available for hire
Rating
CV
👨💻 AI Engineer & CRM Architect — I build smart sales systems that run like clockwork.
I built my own AI-CRM, «Mercon», from scratch: a platform where an AI agent talks to customers across every channel, processes orders and drives them to payment. So I don't just "write code" — I understand the business logic of sales, logistics and finance, and build solutions that save the team time and bring in revenue.
How I can help:
🧠 AI agents & bots. Telegram and website chatbots with an AI assistant that answer customers, qualify leads and offload your managers. Careful prompt engineering for stable, predictable answers.
🔗 Turnkey CRM integrations. I connect CRMs (keyCRM, KeepinCRM, Creatio, Odoo, Bitrix24) with messengers, marketplaces, ad accounts, telephony, banks and external services via API and webhooks. No lead lost, data stays consistent.
⚙️ Process automation. n8n and Python workflows: auto-handling of requests, routing, triggers, notifications, parsers. I remove the manual routine that eats your time.
📊 Data & analytics. Data pipelines (Supabase, SQL, Google Sheets, Looker Studio) so the owner sees the real picture in one window, without stitching spreadsheets by hand.
🤝 Why I'm easy to work with: I speak the language of business, not just programmers. First a short breakdown of your task, then a clear plan, fixed timelines and an honest estimate of what's quick vs. what takes time.
🛠 Stack: Python (Django/Flask), OpenAI & Claude API, LangChain, Prompt Engineering, n8n, REST API, PostgreSQL/SQL, Supabase, Cloud.
Skills and abilities
Programming
Outsourcing & consulting
Portfolio
- All works 4
- Web Programming 1
- Client Management & CRM 1
- AI & Machine Learning 1
- Enterprise Resource Planning (ERP) 1
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Automation on n8n: bots, parsers, pipelines
Enterprise Resource Planning (ERP)I am eliminating manual routines through automation using n8n and Python.
What I do:
• n8n workflow: incoming request → classification → action (auto-reply, ticket, notification), integrations with Shopify, CRM, Google Sheets;
… • Telegram bots and AI assistants for teams and clients;
• data parsers (including through live browser sessions when there is anti-bot protection);
• data pipelines: CRM + telephony + advertising → Supabase/SQL → Google Sheets / Looker Studio, so everything updates automatically;
• error handling, retries, alerts — to ensure data doesn’t "drop off."
Stack: n8n, Python, REST API, webhooks, Supabase, SQL, Google Sheets API.
#n8n #automation #python #parsing #bot #datapipeline
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Turnkey CRM integrations and automation
Client Management & CRMI configure CRM so that the business operates in one window instead of ten tabs. I connect and test integrations for product businesses and service companies.
What I connect:
• messengers and social networks (Instagram, Telegram, Viber, WhatsApp) — chats within the CRM;
… • marketplaces and websites (Rozetka, Prom, Shopify, WordPress) — orders into a single funnel;
• delivery (Nova Poshta, Ukrposhta) — auto-generation of shipping documents, tracking, auto-notifications to the client;
• payments (Monobank, LiqPay, WayForPay) — auto-status change after payment;
• advertising accounts (Meta, Google Ads) — leads directly into the CRM, without losses and duplicates;
• telephony, fiscalization (PRRO) and external services via API/webhooks.
I work with keyCRM, KeepinCRM, Odoo, Creatio, Bitrix24. I honestly say that in CRM, what is native and free, and what you actually pay for — is correct setup and testing.
#crm #integration #api #keycrm #automation
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AI sales agent that closes orders on its own
AI & Machine LearningAI agent that I developed for the CRM platform Mercon. It independently conducts dialogues with clients across all channels (Instagram, Telegram, website chat), answers questions about products, selects options, processes orders, and guides the client to payment — without the involvement of a manager.
What’s inside:
• LLM agent with thoughtful prompt engineering tailored to the specific business and its products;
… • access to the catalog, stock levels, and discounts in real time;
• multichannel capability — one agent responds equally well everywhere;
• transfer of complex queries to a live manager when necessary.
Why it’s beneficial for business: instant response to clients 24/7, relieved managers, more orders reaching payment.
Stack: Python, OpenAI and Claude API, LangChain, prompt engineering, REST API.
#ai #chatbot #aiassistant #python #crm #automation
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15 000 USD Mercon — AI CRM system for business automation and sales
Web Programming
About the project
Mercon is a next-generation cloud CRM system developed by me from scratch. The main feature of the platform is deep integration of artificial intelligence (AI) for automating routine tasks of managers and increasing sales conversion.
Implemented functionality
…
AI Assistants
Implementation of LLM (OpenAI API) for analyzing correspondence with clients
Automatic generation of responses (Smart Replies) based on the context of the dialogue
Summarization of calls and meetings
Omnichannel communication
A single window for messengers (Telegram, Instagram, Viber, Facebook) and Email
Integration with IP telephony
Architecture and automation
Development of a sales funnel builder (Kanban)
Trigger action system (automatic tasks, reminders, status changes)
Flexible API for integration with external services
Technical stack
Backend: Python (Flask/FastAPI), REST API, WebSockets
Frontend: modern JavaScript Framework (React/Vue), SPA
AI/ML: OpenAI API, LangChain, Prompt Engineering
Database: PostgreSQL, Redis (for caching and task queues)
DevOps: Docker, CI/CD, Nginx
My role
Full-Stack development and architecture. Responsible for the entire product creation cycle: from database design and backend development to implementing AI algorithms and deployment on the server.
This project demonstrates my ability to create high-load commercial-grade systems.
Activity
| Latest proposals 10 | Budget | Added | Deadlines | Proposal | |
|---|---|---|---|---|---|
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Create a team of AI agents
403 USD
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Development of a sales AI agent for an online store on PrestaShop 1.6 with KeyCRM integration
601 USD
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Write meta data for ALT using AI
229 USD
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Marketing automation through AI
458 USD
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Create an offline II that analyzes engineering information
334 USD
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Automatic posting of stories on Instagram
67 USD
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Creation of AI Agent
500 USD
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Need an AI agent for cold calls in Ukrainian.
445 USD
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Setting up Shopify system for offline store
180 USD
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Automation bot for playerok.com
89 USD
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