09/08/2026 updated
100 % available
Full-Stack AI Developer | Voice Agents, RAG, LangChain, Claude
Warsaw, Poland
Worldwide
Bachelor of Science in Computer ScienceAbout me
Full-Stack AI Developer with 8+ years of experience shipping 25+ production AI systems across healthcare, life sciences, distribution, hospitality, construction, fintech, and enterprise SaaS.
Artificial IntelligenceDjangoSystems IntegrationBackendFull Stack DevelopmentFront End Software DevelopmentApi DesignArtificial Intelligence Markup Language (AIML)
AI Engineering & LLM Integration
Expertise in OpenAI, Claude, LangChain, LangGraph, LlamaIndex, RAG pipelines, AI agents, embeddings, vector databases, tool calling, structured outputs, and semantic search for production-grade AI systems.
Full-Stack Development
Proficiency in frontend technologies including Next.js, React, and TypeScript, combined with backend frameworks such as Python, FastAPI, Node.js, Express.js, and Django for building scalable full-stack applications.
Cloud & DevOps
Hands-on experience with AWS (EC2, S3, RDS), Vercel, Docker, GitHub Actions, and CI/CD pipelines, following Agile/Scrum, TDD, and Event-Driven Architecture methodologies.
Database Management
Knowledge of PostgreSQL, Supabase, MongoDB, MySQL, Pinecone, and vector databases for managing structured and unstructured data in enterprise applications.
Voice AI & Automation
Development of real-time AI voice automation systems using Vapi, Claude, APIs, and webhook-driven workflows, handling live calls, intent extraction, structured data processing, and automated business actions.
RAG-Based Knowledge Systems
Design and integration of RAG-based knowledge retrieval systems to power intelligent search across large media archives, legal document repositories, and enterprise platforms.
NLP & Billing Intelligence
Building specialized NLP models to generate operational billing scripts, reducing manual billing reconciliation time, and engineering high-performance backend services for real-time billing intelligence inference.
ERP & MES Systems
Development of custom ERP tools, MES modules, and full-stack dashboards for real-time factory floor data visualization, AI-driven quality control, and predictive maintenance features.
API Design & Middleware
Design of custom API middleware connecting disparate enterprise systems for seamless AI-driven automation data flow, including RESTful APIs and microservices in Java and Python.
Enterprise Workflow Automation
Development of custom BPMS modules with intelligent rule engines, responsive frontends using Angular and React, and scalable AWS architectures with secure REST APIs and schemas.
Expertise in OpenAI, Claude, LangChain, LangGraph, LlamaIndex, RAG pipelines, AI agents, embeddings, vector databases, tool calling, structured outputs, and semantic search for production-grade AI systems.
Full-Stack Development
Proficiency in frontend technologies including Next.js, React, and TypeScript, combined with backend frameworks such as Python, FastAPI, Node.js, Express.js, and Django for building scalable full-stack applications.
Cloud & DevOps
Hands-on experience with AWS (EC2, S3, RDS), Vercel, Docker, GitHub Actions, and CI/CD pipelines, following Agile/Scrum, TDD, and Event-Driven Architecture methodologies.
Database Management
Knowledge of PostgreSQL, Supabase, MongoDB, MySQL, Pinecone, and vector databases for managing structured and unstructured data in enterprise applications.
Voice AI & Automation
Development of real-time AI voice automation systems using Vapi, Claude, APIs, and webhook-driven workflows, handling live calls, intent extraction, structured data processing, and automated business actions.
RAG-Based Knowledge Systems
Design and integration of RAG-based knowledge retrieval systems to power intelligent search across large media archives, legal document repositories, and enterprise platforms.
NLP & Billing Intelligence
Building specialized NLP models to generate operational billing scripts, reducing manual billing reconciliation time, and engineering high-performance backend services for real-time billing intelligence inference.
ERP & MES Systems
Development of custom ERP tools, MES modules, and full-stack dashboards for real-time factory floor data visualization, AI-driven quality control, and predictive maintenance features.
API Design & Middleware
Design of custom API middleware connecting disparate enterprise systems for seamless AI-driven automation data flow, including RESTful APIs and microservices in Java and Python.
Enterprise Workflow Automation
Development of custom BPMS modules with intelligent rule engines, responsive frontends using Angular and React, and scalable AWS architectures with secure REST APIs and schemas.
Experience
Professional experience5 - 10 years
Freelancer since2017
Languages
EnglishFluent
Project history
Converted manual infrastructure provisioning to Infrastructure as Code using Terraform and CloudFormation. Standardized environments across development, staging, and production. Reduced infrastructure setup time from days to hours.
Designed and deployed a production Kubernetes cluster on AWS EKS for a high-traffic e-commerce application. Implemented auto-scaling, load balancing, and rolling updates. Achieved 99.9% uptime and reduced infrastructure costs by 25%.
Built end-to-end CI/CD pipelines for a SaaS platform serving 50,000+ users. Automated testing, building, and deployment processes using Jenkins and AWS CodePipeline. Reduced manual errors by 90% and enabled daily releases.