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Python-програміст
- Considering positions:
- Python-програміст, AI engineer
- City of residence:
- Lviv
- Ready to work:
- Lviv, Remote
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Nikita Rumiantsev
Python Developer
[open contact info ](look above in the "contact info" section) | Lviv, Ukraine | [open contact info ](look above in the "contact info" section)
Summary
Python Developer with commercial experience building and maintaining backend services using Django,
FastAPI, PostgreSQL, Redis, and Celery. Experienced in integrating LLM-powered features with LangChain,
LangGraph, and RAG, as well as developing automation systems, API integrations, and web scraping
solutions. Comfortable working with legacy codebases, Docker, Linux infrastructure, and client-facing
development. Cybersecurity student at Lviv Polytechnic with a security-focused approach to backend
development.
Experience
Python Developer, Insiders 07/2025 - 06/2026
• Maintain and extend an 11-year-old Django service within a microservices architecture; refactor legacy
code, resolve technical debt, and preserve backward compatibility.
• Build and integrate LLM-powered functionality using LangChain and LangGraph.
• Develop REST APIs with FastAPI and maintain asynchronous task pipelines with Celery and Redis.
• Apply security-focused backend practices including input validation and authentication hardening.
• Communicate directly with English-speaking clients to gather requirements, clarify scope, and coordinate
delivery milestones.
Python Developer, Freelance 04/2024 - Present
• Develop custom backend solutions including automation systems, Telegram bots, scraping pipelines, and
third-party API integrations.
• Build Telegram bots with Aiogram using FSM-based workflows and webhook deployments.
• Develop RAG pipelines combining vector search with LLM-generated responses.
• Build web scraping solutions using Selenium and BeautifulSoup.
• Containerize applications with Docker and deploy services on self-hosted Linux environments.
Education
Bachelor - Cybersecurity, Lviv Polytechnic National University 09/2024 - 09/2028
Technical Skills
Backend AI & LLM
Python, Django, DRF, FastAPI, PostgreSQL, Redis, LangChain, LangGraph, RAG, LLM Integrations,
Celery Vector Databases
Automation & Scraping DevOps & Infrastructure
Aiogram, Selenium, BeautifulSoup Docker, Linux (Ubuntu, Arch), Proxmox VE, Tailscale,
CI/CD basics
Development Practices
Git, REST APIs, OOP, SOLID, Design Patterns
Projects
TeleNote - AI Knowledge Manager
Telegram-based personal knowledge management system inspired by Notion and Obsidian. Integrates
LLM-powered note structuring, secure data storage, and RAG-based contextual retrieval.
Smart Garage - IoT & Home Automation
Self-hosted Proxmox + Home Assistant environment for vehicle metrics monitoring through OBD-II, EV
charging reminders, and presence tracking via Tailscale.
Cybersecurity Academic Projects
Network traffic analysis, signal processing, and secure application development as part of the Cybersecurity
program at Lviv Polytechnic.
Certifications & Activities
MCP: Advanced Topics AWS Academy Graduate BEST Hackathon 2026
Anthropic - May 2026 Cloud Foundations - Apr 2026 Participant - BEST Lviv
Languages
Ukrainian English
Native B1+
Python Developer
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Summary
Python Developer with commercial experience building and maintaining backend services using Django,
FastAPI, PostgreSQL, Redis, and Celery. Experienced in integrating LLM-powered features with LangChain,
LangGraph, and RAG, as well as developing automation systems, API integrations, and web scraping
solutions. Comfortable working with legacy codebases, Docker, Linux infrastructure, and client-facing
development. Cybersecurity student at Lviv Polytechnic with a security-focused approach to backend
development.
Experience
Python Developer, Insiders 07/2025 - 06/2026
• Maintain and extend an 11-year-old Django service within a microservices architecture; refactor legacy
code, resolve technical debt, and preserve backward compatibility.
• Build and integrate LLM-powered functionality using LangChain and LangGraph.
• Develop REST APIs with FastAPI and maintain asynchronous task pipelines with Celery and Redis.
• Apply security-focused backend practices including input validation and authentication hardening.
• Communicate directly with English-speaking clients to gather requirements, clarify scope, and coordinate
delivery milestones.
Python Developer, Freelance 04/2024 - Present
• Develop custom backend solutions including automation systems, Telegram bots, scraping pipelines, and
third-party API integrations.
• Build Telegram bots with Aiogram using FSM-based workflows and webhook deployments.
• Develop RAG pipelines combining vector search with LLM-generated responses.
• Build web scraping solutions using Selenium and BeautifulSoup.
• Containerize applications with Docker and deploy services on self-hosted Linux environments.
Education
Bachelor - Cybersecurity, Lviv Polytechnic National University 09/2024 - 09/2028
Technical Skills
Backend AI & LLM
Python, Django, DRF, FastAPI, PostgreSQL, Redis, LangChain, LangGraph, RAG, LLM Integrations,
Celery Vector Databases
Automation & Scraping DevOps & Infrastructure
Aiogram, Selenium, BeautifulSoup Docker, Linux (Ubuntu, Arch), Proxmox VE, Tailscale,
CI/CD basics
Development Practices
Git, REST APIs, OOP, SOLID, Design Patterns
Projects
TeleNote - AI Knowledge Manager
Telegram-based personal knowledge management system inspired by Notion and Obsidian. Integrates
LLM-powered note structuring, secure data storage, and RAG-based contextual retrieval.
Smart Garage - IoT & Home Automation
Self-hosted Proxmox + Home Assistant environment for vehicle metrics monitoring through OBD-II, EV
charging reminders, and presence tracking via Tailscale.
Cybersecurity Academic Projects
Network traffic analysis, signal processing, and secure application development as part of the Cybersecurity
program at Lviv Polytechnic.
Certifications & Activities
MCP: Advanced Topics AWS Academy Graduate BEST Hackathon 2026
Anthropic - May 2026 Cloud Foundations - Apr 2026 Participant - BEST Lviv
Languages
Ukrainian English
Native B1+
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The candidate's resume is posted at https://www.work.ua/resumes/20503357/