John Steve
Warsaw, Poland
John Steve
AI engineer | Claude AI + Vibe coding | n8n + GHL
Category : Web development
🚀 7+ years turning complex problems into clean, intelligent solutions.
I build AI-powered systems that actually work in production , from autonomous Claude AI agents to end-to-end automation pipelines using n8n and GoHighLevel (GHL). I live at the intersection of vibe coding ✨ and engineering rigour 🔩.
🧠 Passionate about prompt engineering, agentic workflows, and shipping products that make people say "wait, how did it do that?"
🤝 Whether it's automating a business process, building an AI assistant, or integrating LLMs into real-world apps, I've got you covered.
I build AI-powered systems that actually work in production , from autonomous Claude AI agents to end-to-end automation pipelines using n8n and GoHighLevel (GHL). I live at the intersection of vibe coding ✨ and engineering rigour 🔩.
🧠 Passionate about prompt engineering, agentic workflows, and shipping products that make people say "wait, how did it do that?"
🤝 Whether it's automating a business process, building an AI assistant, or integrating LLMs into real-world apps, I've got you covered.
Portfolio
Working hours
- Monday:08h00 To 18h00
- Tuesday:08h00 To 18h00
- Wednesday:08h00 To 18h00
- Thursday:08h00 To 18h00
- Friday:08h00 To 18h00
- Saturday:Not available
- Sunday:Not available
Architected Claude-powered AI agents for client onboarding & lead qualification, reducing manual work by 70%
Built 20+ production n8n automation pipelines integrating Slack, HubSpot, Notion, and custom APIs
Designed GHL sub-account automation for a digital marketing agency managing 80+ clients
Led a team of 3 developers, introduced AI-first engineering practices across all projects
Built 20+ production n8n automation pipelines integrating Slack, HubSpot, Notion, and custom APIs
Designed GHL sub-account automation for a digital marketing agency managing 80+ clients
Led a team of 3 developers, introduced AI-first engineering practices across all projects
Introduced LLM tooling (OpenAI, later Claude) into existing SaaS product, increasing user engagement by 35%
Built Make (Integromat) and n8n workflows for e-commerce clients automating order management & customer comms
Developed Python microservices for data ingestion and AI inference pipelines on AWS Lambda
Built Make (Integromat) and n8n workflows for e-commerce clients automating order management & customer comms
Developed Python microservices for data ingestion and AI inference pipelines on AWS Lambda
Developed and maintained web applications for fintech and logistics clients using Python (FastAPI) & React
Designed relational database schemas (PostgreSQL) handling 1M+ records with optimised query performance
Integrated third-party APIs including payment gateways, Google Maps, and shipping providers
Designed relational database schemas (PostgreSQL) handling 1M+ records with optimised query performance
Integrated third-party APIs including payment gateways, Google Maps, and shipping providers
Built REST APIs and internal tools for small business clients using Python & Django
Collaborated in Agile sprints, contributing to CI/CD pipeline setup using GitHub Actions
Took ownership of bug fixes and feature delivery, consistently hitting sprint goals
Collaborated in Agile sprints, contributing to CI/CD pipeline setup using GitHub Actions
Took ownership of bug fixes and feature delivery, consistently hitting sprint goals
Specialisation in Intelligent Systems & Distributed Computing. Thesis: "Optimising task scheduling in distributed microservice architectures using reinforcement learning."
Core studies in algorithms, data structures, software engineering, and databases. Final project: a real-time collaborative task management web app.
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