Direct involvement in developing and implementing CRM systems for businesses, including contact center automation, delivery service integrations, and a flexible reporting engine.
Achievements in this role include building the entire infrastructure from the ground up — from hardware configuration to CI/CD pipelines — and ensuring high availability with a 99% SLA.
Also contributed to the development of a custom CRM platform built with Node.js (TypeScript), Vue 3, Quasar, NestJS, and gRPC.
Stack highlights:
-- On-premises bare-metal infrastructure (self-owned servers)
-- Network: Hardware routers & switches
-- Virtualization: Proxmox + Proxmox Backup
-- CI/CD: Self-hosted GitLab
-- Container orchestration: Kubernetes
-- Storage: MinIO (S3-compatible object storage)
-- Databases: MongoDB, PostgreSQL, Redis
-- Observability: Jaeger, Elasticsearch
-- Telephony: FreeSWITCH
-- VPN/Networking: WireGuard, IPsec (IKEv2, L2TP), OpenVPN
