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Vladimir S.
Expert-Vetted

Vladimir S.

Production AI Engineer | RAG, LLM Agents, Python

I build production AI systems: LLM applications, RAG platforms and AI agents that keep working after the demo. 10+ years in software engineering, Expert-Vetted on Upwork, and personally involved from the first call to release. Most teams come to me with one of three things: an AI feature for an existing product, an LLM prototype that has to survive real users, or a manual process they want an agent to take over. The difficult work is rarely choosing a model. It is designing the system around it: company data, context engineering, integrations, evaluation, monitoring, latency, cost control, security and predictable behaviour. What I build: ✅ AI agents and workflows: tool use, MCP integrations, memory and context management, human approval gates ✅ RAG and internal knowledge systems: hybrid retrieval, pgvector/Qdrant, reranking, evaluation ✅ LLM applications on OpenAI, Claude and self-hosted models ✅ Real-time voice agents: speech-to-text (ASR) and text-to-speech (TTS) ✅ Computer vision and machine learning for production environments ✅ Production backend: Python, FastAPI, Docker, APIs, AWS/Azure How I keep it reliable: observability, evals, regression testing and audit trails, so you know what the system does and what it costs before your users find out. Recent work: ✅ RAG troubleshooting system for a UK manufacturer, funded by Innovate UK ✅ Production AI and computer vision for electronics manufacturing ✅ AI investment-research platform ✅ LLM compliance automation for AdTech ✅ AI-assisted music-therapy product used in dementia and autism care Still deciding where AI fits? I also work as a fractional AI lead: mapping workflows, prioritising use cases, technical due diligence, build-vs-buy decisions, and testing the direction before a team commits serious budget. I'm the founder of Go Wombat, an AI engineering company, and I run AI Talks Valencia, the largest local AI community in Valencia. Send me a short note on what you're building and where it's stuck. I'll reply with how I'd approach it.

🇺🇦Dnipropetrovsk, Ukraine$45/hr100% JSS4.87 (53)Since Feb 2010

Earnings and projects

MRR
$10k

Last 6 months ÷ 6

World#1,275 / 412k
🇺🇦Country#79 / 14.3k
Revenue, last 30 days
$8.4k

Last 6 months: $60k

World#2,088 / 412k
🇺🇦Country#134 / 14.3k
Total earnings
$589k

Billed in all: $608k

World#1,953 / 412k
🇺🇦Country#168 / 14.3k
Per project
$8.1k

$12k in the last 6 months

World#20,675 / 412k
🇺🇦Country#1,411 / 14.3k
Projects, last 6 months
5
60% fixed40% hourly
World#41,746 / 412k
🇺🇦Country#1,797 / 14.3k
Projects in all
73

Across 83 contracts

41% fixed59% hourly
World#40,823 / 412k
🇺🇦Country#1,918 / 14.3k

Earnings, last 30 days

$608k+$8.4k earned in the last 30 daysBilled in all, before Upwork's fee · drag across the chart to see what was earned in any stretch
$595k$600k$605k$610kOct 8Oct 23Nov 7

Skill rankings: Top 0.60% in FastAPI

Top 1% in 6 of 15 skills, ranked by MRR among everyone on Upwork with the skill.

  1. #5Model Context Protocol (MCP)413 freelancers · 🇺🇦 #1Top 1%
  2. #17Computer Vision2,498 freelancers · 🇺🇦 #3Top 0.68%
  3. #26FastAPI4,337 freelancers · 🇺🇦 #3Top 0.60%
  4. #29AI Implementation2,382 freelancers · 🇺🇦 #6Top 1%
  5. #35AI Consulting2,321 freelancers · 🇺🇦 #3Top 2%
  6. #41Large Language Model2,726 freelancers · 🇺🇦 #3Top 2%
  7. #45Retrieval Augmented Generation3,618 freelancers · 🇺🇦 #2Top 1%
  8. #58Claude5,112 freelancers · 🇺🇦 #4Top 1%