10/21/2026 updated
100 % available
Senior Full-Stack & AI Engineer | LangChain, AutoGen, CrewAI | Multi-Agent Systems
Chorzow, Poland
Only remote
University of Warsaw - Bachelor of Computer ScienceAbout me
I’m a Full Stack AI Engineer passionate about building autonomous agents. With 10+ years of experience, Over the past few years, I’ve worked creating everything from research & data-gathering bots to trading systems, customer support agents, and IVR voice assistants.
Tailwind CSSLangChainJavaScriptPHPApplication Programming Interfaces (APIs)Artificial IntelligenceApache AirflowDevOpsDjangoPython (Programming Language)Machine LearningNode.jsTensorFlowNext.jsTypeScript
AI & Machine Learning
Expertise in building production-grade AI systems including RAG pipelines, multi-agent orchestration layers, and LLM integrations using frameworks such as LangChain, AutoGen, CrewAI, and OpenAI API. Experience fine-tuning PyTorch-based transformer models for NLP tasks and deploying them as scalable TensorFlow Serving endpoints.
Python Backend Development
Strong background in designing and developing robust server-side architectures using Python, Django, FastAPI, and Node.js. Proven track record of building asynchronous services, RESTful APIs, and data ingestion pipelines handling hundreds of thousands of daily records.
Databases & Storage
Hands-on experience with relational and NoSQL databases including PostgreSQL, MySQL, MongoDB, Redis, Firebase, Supabase, and DynamoDB. Skilled in designing schemas with vector extensions such as pgvector for hybrid semantic-keyword search at scale.
Frontend Technologies
Proficiency in building responsive and modern user interfaces using React, Vue.js, Next.js, Angular, TypeScript, JavaScript, and Tailwind CSS.
MLOps & DevOps
Implementation of comprehensive MLOps practices including experiment tracking with MLflow, model versioning with DVC, and blue-green deployment strategies using Kubernetes on AWS EKS.
Multi-Agent Orchestration
Design and deployment of autonomous agentic workflows using LangChain and CrewAI that perform multi-step research tasks such as web searches, document summarization, and structured report generation with minimal human intervention.
API Integration & Legacy Systems
Integration of third-party APIs and internal legacy systems via Django REST Framework, including Airtable webhooks and Apache Airflow orchestration for structured data pipelines.
Web Scraping & Data Engineering
Development of Scrapy-based web scrapers for aggregating competitive intelligence and feeding structured data into central data warehouses via orchestration tools.
Expertise in building production-grade AI systems including RAG pipelines, multi-agent orchestration layers, and LLM integrations using frameworks such as LangChain, AutoGen, CrewAI, and OpenAI API. Experience fine-tuning PyTorch-based transformer models for NLP tasks and deploying them as scalable TensorFlow Serving endpoints.
Python Backend Development
Strong background in designing and developing robust server-side architectures using Python, Django, FastAPI, and Node.js. Proven track record of building asynchronous services, RESTful APIs, and data ingestion pipelines handling hundreds of thousands of daily records.
Databases & Storage
Hands-on experience with relational and NoSQL databases including PostgreSQL, MySQL, MongoDB, Redis, Firebase, Supabase, and DynamoDB. Skilled in designing schemas with vector extensions such as pgvector for hybrid semantic-keyword search at scale.
Frontend Technologies
Proficiency in building responsive and modern user interfaces using React, Vue.js, Next.js, Angular, TypeScript, JavaScript, and Tailwind CSS.
MLOps & DevOps
Implementation of comprehensive MLOps practices including experiment tracking with MLflow, model versioning with DVC, and blue-green deployment strategies using Kubernetes on AWS EKS.
Multi-Agent Orchestration
Design and deployment of autonomous agentic workflows using LangChain and CrewAI that perform multi-step research tasks such as web searches, document summarization, and structured report generation with minimal human intervention.
API Integration & Legacy Systems
Integration of third-party APIs and internal legacy systems via Django REST Framework, including Airtable webhooks and Apache Airflow orchestration for structured data pipelines.
Web Scraping & Data Engineering
Development of Scrapy-based web scrapers for aggregating competitive intelligence and feeding structured data into central data warehouses via orchestration tools.
Experience
Professional experience5 - 10 years
Freelancer since2017
Languages
EnglishFluentPolishNative speaker
Project history
Architected end-to-end AI applications combining production-grade React dashboards with Node.js middleware and Python-based reasoning engines for financial compliance automation. Built multi-agent orchestration layers coordinating specialized LLM instances for document classification, anomaly detection, and regulatory text generation. Integrated third-party APIs and legacy systems via Django REST Framework with Airtable webhooks. Implemented MLOps practices including experiment tracking with MLflow, model versioning with DVC, and blue-green deployments on AWS EKS.
Spearheaded development of custom RAG pipelines connecting enterprise-grade LLMs to internal policy documents and customer support histories, cutting resolution time for tier-2 support tickets by nearly 60%. Built autonomous agentic workflows using LangChain and CrewAI. Fine-tuned PyTorch-based transformer models for NER and sentiment classification deployed as TensorFlow Serving endpoints behind FastAPI gateways. Designed PostgreSQL schemas with pgvector for hybrid semantic-keyword search over 2+ million records achieving 94% retrieval accuracy.
Designed and scaled data ingestion pipelines processing over 500,000 daily records from IoT sensors across commercial refrigeration units nationwide. Built asynchronous FastAPI services handling real-time telemetry data with PostgreSQL and Redis. Engineered Scrapy-based web scrapers aggregating competitive pricing intelligence, feeding structured JSON into a central data warehouse via Apache Airflow orchestration.
Certificates
Web Development with Python Certification
Google2025
AI Agent Developer | Certified
Anthropic2025
AI Engineer Professional Specialization
Coursera2022