Hi, I'm Lenya

Full-stack web developer and 1st-year Master's student.
I build practical systems with clear architecture, containerized environments, and production-style APIs.

💼 Recent work (production case study)

• Event-driven webhook processing platform (work project, private)
  • Purpose: ingest webhooks from multiple sources and deliver normalized events into a CRM
  • Architecture: microservices + event streaming (Kafka), event-sourcing approach
  • Stack: NestJS, Node.js, Docker, GitHub Actions (CI/CD), Next.js (internal UI), ELK for observability
  • Load test results: ~830 webhooks/sec ingestion, ~400 webhooks/sec delivery (CRM outbound)
  • Ownership: designed, implemented, tuned, and load-tested end-to-end

🚀 Featured (public) project

• web3wms — Warehouse Management System + equipment tracking with an auditable transfer history.
  • Microservices communicating via REST and RabbitMQ
  • MongoDB as primary storage (separated by service databases)
  • MVP on-chain audit via Ethereum (Ganache) + smart contracts
  • Docker Compose for local deployment
  • Frontend: Next.js + Mantine UI

web3wms architecture (short)

• Services:
  • auth-service (Go) — auth, roles, user profiles, ETH address mapping
  • warehouse-service (Go) — inventory, transactions, invoices, master data
  • tracking-service (Node.js/Express) — equipment lifecycle + blockchain integration
  • notification-service (Go) — notifications (MVP: in-memory; DB reserved for later)
  • analytics-service (Go) — minimal stub (not in compose)
• Messaging (RabbitMQ):
  • equipment.created → tracking-service
  • equipment.transferred → notification-service
• Storage (MongoDB):
  • warehouse_auth, warehouse_inventory, warehouse_tracking

🎓 Current university project (HSE MIEM, 2025/2026)

• Project #2340 — “Blockchain-based warehouse accounting system”
  https://cabinet.miem.hse.ru/project/2340/
  • Goal: build a functional prototype of a blockchain system for warehouse accounting to improve reliability and transparency
  • Expected deliverables: smart contracts for receiving, putaway, picking, shipping; a blockchain application (based on Hyperledger Fabric or an alternative); and a user interface
  • Milestones: start 2025-11-04, defense window 2026-06-08 – 2026-06-19

#2340 architecture (concise)

• Modular prototype: smart-contract layer (warehouse flow contracts) + application layer (API/services) + UI layer
• Tech direction: Go + JavaScript
• DLT platform: Hyperledger Fabric (or alternative) under evaluation

🛠️ Tech stack

Backend: Go, Node.js, NestJS, Express
Frontend: TypeScript, React, Next.js, Mantine UI
Databases: MongoDB
Messaging: RabbitMQ, Kafka
Blockchain: Ethereum (Ganache for MVP), Hyperledger Fabric (evaluation)
Infrastructure: Docker, Docker Compose, GitHub Actions
Observability: ELK

🔬 Currently learning

📫 Contact

• Telegram: https://t.me/ll_ogl
• Email: oglenyaboss@icloud.com

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