Development services · Warsaw, Poland

Senior AI Developer Warsaw, Poland · AI Engineer · Europe & USA

I am a senior AI developer who ships production LLM features - chatbots, RAG, automation and ML integrations - not demo slides. Based in Warsaw, remote across Poland, Europe and the USA.

Senior AI developer AI engineer Warsaw Poland

What I deliver as an AI engineer

  • LLM integration: OpenAI, Claude, custom prompts and guardrails in your stack
  • AI chatbots and virtual assistants (web, Telegram, WhatsApp)
  • RAG pipelines over your docs - private knowledge bases, not public ChatGPT
  • AI for e-commerce: semantic search, recommendations, support deflection
  • Workflow automation: document parsing, email triage, report generation
  • ML model hooks for analytics and forecasting where ROI is measurable
  • API design, monitoring and fallbacks when models throttle or fail

How I work as a senior AI developer

I start with a measurable outcome - “deflect 80% of support tickets” - not “add AI” to the homepage.

Architecture first: where data lives, how prompts version, what happens when the API is down.

I prototype in days on a small dataset before full integration into Laravel, React or WordPress.

GDPR-minded: EU hosting options, keys in env vars, no training on your data without consent.

Polish and US deployments get locale-aware prompts and human escalation when confidence is low.

AI engineer stack

OpenAI APIClaude APILangChainPythonNode.jsVector DBRAGFastAPITelegram Bot API

Technical overview

How I integrate AI into existing products

As an AI engineer I integrate LLMs into products that already have users: chatbots, RAG over private documents, semantic search and workflow automation. The goal is a clear outcome - fewer support tickets, faster document triage, or catalog search that understands natural language.

I work with OpenAI and Claude APIs, orchestration layers, vector databases and Node or Python services with prompt checks and limits. Keys stay in environment variables; prompts are versioned; fallbacks exist when the model is unavailable or returns a weak answer.

RAG pipelines index your knowledge base so answers cite internal content instead of inventing policy. Local or private LLM setups can sit beside CRM data when residency or cost matters. Web, Telegram and WhatsApp assistants can share one backend. I prototype on a small dataset before full integration into Laravel, React or WordPress.

Common AI tasks I help with

  1. How to run a local LLM next to CRM data without leaking records
  2. How to build RAG over internal docs with source citations
  3. How to integrate a support chatbot into an existing help desk
  4. How to add prompt guardrails and block unsafe outputs
  5. How to version prompts and roll back a bad change
  6. How to add semantic search across a product catalog
  7. How to triage inbound email with an LLM and human escalation
  8. How to wire Telegram or WhatsApp bots to the same backend as web chat
  9. How to handle model timeouts with fallbacks and retries
  10. How to measure support load after launching an AI assistant

Warsaw · Poland · Europe · USA

Remote-first development with local presence in Warsaw - the same senior engineer for Polish, European and American clients.

Warsaw

Senior AI developer Warsaw - LLM features for local SMEs, clinics and product teams who need an AI engineer on call.

Poland

AI engineer for Polish companies - PL-language bots, automation and private RAG over internal docs.

Europe

EU-ready AI engineering: data residency, GDPR-conscious integrations and multilingual assistants.

USA

Remote senior AI developer for US startups - EST overlap, English-first bots and production LLM APIs.

Development + SEO

We do not only build - we promote

LLM features bring efficiency; SEO brings leads - I engineer AI systems and promote your site so automation and organic traffic grow together.

Website promotion & SEO
Viktar Liukevich

About me

I'm Viktar Liukevich

Full-stack developer · 15+ years creating web

I am Viktar Liukevich, a senior AI developer and AI engineer in Warsaw with 15+ years in web - I integrate LLMs into real products that survive API limits, bad prompts and messy user input.
Clients hire me as an AI engineer when they need someone who codes the integration: RAG over their docs, support bots wired to CRM, catalog search that understands natural language - not a strategy deck or a no-code widget that breaks in week two.
For computer vision, large-scale model training or dedicated MLOps, I bring in AI/ML partners in Poland, Europe and the USA under NDA. You work with me as lead AI engineer; I own architecture and review every endpoint before production.
300+
Completed Projects
90+
Clients
10+
Partners

Advantages

  • 15+ years working for myself
  • Wide technology stack
  • Rapid development
  • Warranty and support
  • Global quality standards
  • Working with clients worldwide
  • Innovative technological solutions