Projects
Case studies and projects: infrastructure, platforms, networks, storage.
HPE BladeSystem + 3PAR + tiered backup
16 HPE BL460c Gen9/Gen10 servers in C7000 chassis. HPE 3PAR 7400 storage, cold backups on ASUS Stor, Proxmox Backup Server for VMs. Zyxel, Eltex, MikroTik, and HPE switches. Home…
InfrastructurePrivate Proxmox VE cloud
4 Dell PowerEdge / Supermicro nodes, 40+ VMs, HA, live migration, replication, Ceph Storage, centralized backup. Zero-downtime upgrades. SLA >99.99%.
PlatformKubernetes Enterprise (12 nodes)
3 masters + 9 workers. Calico, MetalLB, NGINX Ingress, Cert Manager, ArgoCD. Prometheus, Grafana, Loki, OpenTelemetry. 150+ containers, HPA/VPA, canary and blue/green.
Platform · Pet projectSelf-hosted video conferencing on Kubernetes
Self-hosted Jitsi Meet in a production cluster: video conferences, WebRTC, TLS, Ingress, and resilient deployment. Used for consultations and team communication.
Platform · Open SourceNginx Proxy Manager fork for Kubernetes
Custom NPM fork optimized for production Kubernetes: stable operation with 9+ replicas and HPA, QUIC (HTTP/3) support, GeoIP filtering, and targeted improvements for edge proxying…
Network · Pet projectClustered DNS on PowerDNS
Custom resilient DNS implementation: clustered PowerDNS, web UI for zones and records, distributed caching DNS proxies for low latency and authoritative node offload.
Infrastructure · Pet projectSecure Mailcow mail server
Self-hosted corporate mail on Mailcow: SMTP/IMAP, web UI, TLS, anti-spam and anti-virus, DKIM/SPF/DMARC. Full control over domains, mailboxes, and delivery without external…
Network / SANInternal network and SAN fabric
Mixed enterprise network: Spine-Leaf, BGP, OSPF, VXLAN/EVPN, ECMP, LACP, VRRP. Multi-provider load balancing, automatic failover. SAN: Fibre Channel, iSCSI, zoning, multipath. HPE…
StorageCeph cluster
MON/OSD/MGR, CephFS, RBD, S3 RGW, erasure coding, geo-distribution. Dozens of TB, thousands of IOPS. Integration with K8s and Proxmox.
Storage · Pet projectCloud storage with web UI
Self-hosted file cloud on Kubernetes: web UI for upload and sync. Data replication to Ceph (CephFS / RGW), tiered backup to ASUS Stor and external cold storage. TLS, Ingress…
DatabasesPostgreSQL / MySQL: tuning and HA clusters
Performance tuning, streaming/logical replication, Patroni and Galera clusters, pgBouncer, PITR. Monitoring, failover, and production database operations in high-load environments.
DevOpsGitLab Enterprise Platform
GitLab HA, Runner Farm, Docker/K8s Executors, Container Registry, Package Registry. Fully automated CI/CD and GitOps.
DevOpsInfrastructure as Code
Terraform, OpenTofu, Ansible, ArgoCD. New cluster in under 30 minutes. Auto-provisioning, upgrades, backup, full recovery from code.
WebEnterprise CRM
Customer base, financial accounting, tasks, Telegram/Email, REST API, roles and access control. PHP 8, PostgreSQL, Redis.
WebComplex web portal
Redis caching, load balancing, CDN, job queues, search via Elasticsearch.
WebNext-generation forum
Custom engine: topics, moderation, private messages, SEO, mobile app API, integrations with external services.
WebMultipurpose CMS
Modular architecture, page builder, templates, multilingual support, user management, REST API.
WebCorporate blog engine
Multimedia, SEO tools, comments, caching, full-text search.
InfrastructureLinux Software Engineering
Monitoring daemons, backup services, auto-deploy, server management, log rotation, performance diagnostics. Bash and Python.
InfrastructureAsterisk cluster
Full lifecycle: from scratch to a production-ready resilient telephony cluster with complete configuration.