Дмитро

DMYTRO SHEFEL
AI AUTOMATION ENGINEER
n8n | Make | Zapier | AI Agents | RAG | API Integrations
[відкрити контакти](див. вище в блоці «контактна інформація») [відкрити контакти](див. вище в блоці «контактна інформація») Telegram: @shef0810
PROFESSIONAL PROFILE
AI Automation Engineer with hands-on project experience designing multi-step workflows, AI agents, RAG-based assistants, and API-driven
business automations. Skilled in n8n, Make, Zapier, REST APIs, webhooks, structured outputs, databases, CRM integrations, error handling,
and human-in-the-loop logic. Founder of Dyshea, a gamified Python-learning platform, combining automation engineering with cybersecurity,
technical support, and product experience to build secure, maintainable systems that reduce manual work and create measurable value.
CORE TECHNOLOGY STACK
Automation: n8n, Make, Zapier, multi-step workflows, conditional Data & Backend: PostgreSQL, MongoDB, Supabase, pgvector,
routing, scheduling, retries, error handling, data mapping Redis, Airtable, SQL, data validation
AI & Agents: OpenAI API, ChatGPT, Claude, Gemini, Grok, Kimi Vector Databases: Pinecone, Qdrant, Weaviate, Supabase Vector
2.5, Codex, tool calling, structured outputs, prompt engineering Business Systems: HubSpot, Salesforce, Pipedrive, Slack,
RAG Systems: LangChain, LlamaIndex, embeddings, chunking, Telegram, Notion, Calendly, Typeform, Gmail, Google Sheets
semantic search, metadata filtering, reranking, knowledge-base Development & Ops: Python, JavaScript, Git, GitHub, Docker,
assistants Linux, self-hosted n8n, logging, monitoring, secure credential
APIs: REST APIs, webhooks, JSON, OAuth 2.0, HTTP requests, management
pagination, rate-limit handling, Postman

PROFESSIONAL EXPERIENCE
Security Analyst - GeekForLess Nov 2025 - Present
• Prepare structured penetration-testing reports, translating technical evidence into clear business impact, risk ratings, and remediation
guidance.
• Coordinate vulnerability communication with external companies, clarify findings, track remediation status, and maintain accurate technical
records.
• Apply a security-aware approach to sensitive data, credentials-related context, workflow documentation, and integration design.
Technical Support Specialist - Crococalls Jul 2025 - May 2026
• Investigated VoIP and IP-telephony incidents by analysing logs, routing behaviour, configurations, call records, and reproducible test cases.
• Created clear escalations and documented recurring issues, resolution patterns, and troubleshooting procedures for internal and client-
facing teams.
• Built strong workflow-debugging skills by tracing inputs, outputs, dependencies, and failure points across technical systems.
SELECTED PROJECTS
Founder & AI Automation Engineer - Dyshea Current
• Built and developed a gamified Python-learning platform while designing AI-assisted workflows for content production, marketing
operations, research, user communication, and internal processes.
• Created automation scenarios using n8n, Make, and Zapier to connect AI models, APIs, webhooks, databases, messaging tools, and
business applications.
• Designed RAG-based assistant workflows with document ingestion, chunking, embeddings, vector search, contextual retrieval, structured
responses, and escalation logic.
• Used ChatGPT, Claude, Gemini, Grok, Kimi 2.5, and Codex for coding support, workflow architecture, research, debugging,
documentation, and multi-step agent tasks.

Dmytro Shefel | AI Automation Engineer
ADDITIONAL AUTOMATION PROJECTS
AI Support & Knowledge-Base Assistant
• Designed a RAG pipeline for internal knowledge retrieval using LangChain/LlamaIndex concepts, vector search, metadata filtering,
confidence checks, and human escalation.
CRM & Lead Automation
• Built project workflows for lead capture, enrichment, qualification, routing, follow-up, and status synchronization across forms, CRMs,
messaging tools, and databases.
API-Connected AI Agent
• Designed an agent workflow that validates requests, calls external APIs, transforms JSON data, produces structured output, logs failures,
and routes exceptions for review.
Self-Hosted Automation Environment
• Configured project environments using Docker, PostgreSQL, Redis, environment variables, credential separation, logging, and basic
monitoring for secure workflow execution.
EDUCATION
DAN.IT Education - AI Automation Engineer Program Current
• Practical training in n8n, Make, Zapier, REST APIs, webhooks, AI agents, RAG, LangChain, databases, business integrations, and
workflow architecture.
KhAI College - Bachelor's Degree in Software Engineering Current
• Programming fundamentals, algorithms, databases, software development, and technical foundations for automation engineering.
IT STEP Academy - Cybersecurity and Networking Completed / Ongoing Practice
• Practical training in networking fundamentals, cybersecurity, system administration, vulnerability analysis, security monitoring, and technical
troubleshooting.
CERTIFICATIONS
• Cisco Networking Academy: CCNA Introduction to Networks; Switching, Routing and Wireless Essentials; Enterprise Networking, Security
and Automation.
• TryHackMe: Cyber Security 101; Pre Security.
LANGUAGES
English: B2 | Ukrainian: C2 | Russian: C2 | Slovak: B1 | Portuguese: A2

Dmytro Shefel | AI Automation Engineer