Aleksei Riumin — Senior IT Infrastructure & Network Architect
📧 lxryumin@gmail.com | 🌐 lxryumin-best.github.io
Professional Summary
Senior IT Infrastructure Architect and independent IT consultant with 20+ years of hands-on experience designing, deploying, and maintaining enterprise-grade IT environments. Specializing in fault-tolerant network architectures, server virtualization, cybersecurity, and zero-downtime system migrations. Currently providing SLA-backed infrastructure support and consulting for 25+ corporate B2B clients across manufacturing, healthcare, construction, retail, and agriculture sectors.
Core Competencies
| Area | Technologies & Skills |
|---|---|
| Network Architecture | MikroTik RouterOS, TCP/IP, VLANs, VPN (IPsec, L2TP, PPTP), BGP, OSPF, firewall design |
| Server & Virtualization | Proxmox VE, VMware, Hyper-V, Docker, high-availability clusters, backup strategies |
| Cybersecurity | Kaspersky Endpoint Security, IDS/IPS, DDoS mitigation, Zero Trust architecture |
| Telephony & Communications | VoIP/IP PBX integration, FreePBX, Asterisk |
| Physical Infrastructure | Structured cabling (UTP/STP), server room design, CCTV & access control |
| Operating Systems | Windows Server 2008–2022, Linux (Debian, Ubuntu, CentOS), Active Directory |
| Monitoring & Management | Zabbix, Grafana, PRTG, remote IT support |
Professional Experience
Independent IT Consultant & Infrastructure Architect
2008 — Present · Yaroslavl, Russia
Strategic IT partner for 25+ B2B clients across diverse industries. Key responsibilities and achievements:
- Designed and deployed corporate LAN/WAN infrastructures from ground up, including a project utilizing over 4,500 meters of UTP cabling
- Built fault-tolerant server clusters using Proxmox VE for clients requiring 24/7 uptime guarantees
- Executed zero-downtime IT migrations — complex system relocations and network modernizations without a single minute of business interruption
- Deployed corporate cybersecurity solutions (Kaspersky Endpoint Security) across multi-site enterprise environments
- Integrated VoIP telephony systems reducing clients’ telecommunications costs with no proprietary hardware lock-in
- Provided SLA-backed IT support for 23+ active corporate clients (3 to 100+ workstations per site)
- Designed and implemented secure remote access solutions (VPN tunnels, Zero Trust perimeter)
Certifications
| Certificate | Issuer | Year |
|---|---|---|
| MikroTik Certified Security Engineer (MTCSE) | MikroTik | 2020 |
| MikroTik Certified Network Associate (MTCNA) | MikroTik | 2020 |
| Kaspersky Authorized Specialist | Kaspersky Lab | 2019 |
Currently preparing for: Certified Kubernetes Administrator (CKA)
Education
- Engineering & IT background with 20+ years of continuous self-development and practical field experience
- Ongoing professional training in container orchestration, cloud-native architectures, and DevOps practices
Notable Client Portfolio
Federal tool & equipment networks · Manufacturing plants · Medical & dental clinics · Construction companies · Agricultural enterprises · Government expertise bodies · Private security organizations · Hotel complexes
Full client list and project documentation available upon request.
Download Documents
📄 Download Resume (PDF — English) 📁 Download Top Enterprise Cases (PDF)
(References and detailed project documentation are provided upon request during B2B negotiations.)