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Andrii K.
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Andrii K.

AI Agent Developer | RAG Chatbot Developer | Full Stack Developer

🤖 Need an AI agent that works in production, not just in a demo? We build them. We are an AI Agent Developer and Full Stack Developer team shipping RAG chatbots, document AI and multi-agent systems on Node.js and React. 80+ products delivered. 💡 What we build as an AI Agent Developer team We design AI agents that work with a client’s own data. Our AI agent developers build RAG chatbots that answer strictly from your documents, multi-agent platforms where several AI bots reach a decision together, and document AI pipelines that read PDFs and send clean data into QuickBooks, Xero or NetSuite. We also train computer vision models, one of them on 1M+ images for real disease prediction, and use natural language processing for content generation at scale. Python, deep learning and neural networks sit under the hood, while OpenAI and Claude APIs power the agent logic. 🤖 Bridge, our own AI agent framework Every AI agent project starts faster because we built Bridge. It covers RAG pipelines, secure data ingestion from PDFs, CRMs and APIs, MCP servers for tool-calling agents, and deployment to chat, web and internal tools. As a RAG chatbot developer team, we never start from zero. 🔹 The Full Stack Developer team behind every agent An AI agent is useless without a real product around it. Our Full Stack Developer team works with Node.js, React, NestJS and Next.js on AWS, with SQL databases, Git-based CI and CD, and our own BC Next.js and NestJS boilerplate. That is why our agents ship inside production SaaS platforms, marketplaces and ERP or CRM systems, not as stand-alone demos. 🧠 How we work Deep product discovery, architecture design, sprint-based Agile development, transparent daily communication, automated testing and QA, production deployment and scaling support. 🎯 If you are building an AI agent, a RAG chatbot, AI SaaS or a custom AI assistant, we offer a free technical consultation and architecture review. Send us an invite and let’s look at your case.

🇺🇦Sumy, Ukraine$47/hr100% JSS4.98 (30)Since Nov 2013
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Earnings and projects

MRR
$836

Last 6 months ÷ 6

World#56,044 / 412k
🇺🇦Country#2,371 / 14.3k
Revenue, last 30 days
$0

Last 6 months: $5k

Total earnings
$247k

Billed in all: $270k

World#10,954 / 412k
🇺🇦Country#903 / 14.3k
Per project
$7k

$5k in the last 6 months

World#24,147 / 412k
🇺🇦Country#1,611 / 14.3k
Projects, last 6 months
1
0% fixed100% hourly
World#128,092 / 412k
🇺🇦Country#4,718 / 14.3k
Projects in all
35

Across 41 contracts

46% fixed54% hourly
World#85,277 / 412k
🇺🇦Country#3,766 / 14.3k

Earnings, last 30 days

$270kNothing earned in the last 30 daysBilled in all, before Upwork's fee · drag across the chart to see what was earned in any stretch
$265k$270k$275k$280kOct 8Oct 23Nov 7

Skill rankings: Top 10% in CSS 3

Ranked by MRR among everyone on Upwork with the skill.

  1. #6Unsupervised Learning58 freelancers · 🇺🇦 #2Top 10%
  2. #9Supervised Learning75 freelancers · 🇺🇦 #1Top 12%
  3. #44Artificial Neural Network320 freelancers · 🇺🇦 #5Top 14%
  4. #51Neural Network501 freelancers · 🇺🇦 #7Top 10%
  5. #193TensorFlow1,661 freelancers · 🇺🇦 #17Top 12%
  6. #342Deep Learning2,743 freelancers · 🇺🇦 #20Top 12%
  7. #377Natural Language Processing2,688 freelancers · 🇺🇦 #21Top 14%
  8. #390Computer Vision2,498 freelancers · 🇺🇦 #28Top 16%