10/26/2026 updated

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IT Infrastructure & Operations Consultant | AWS, Azure, Networks, Migrations

Belgrade, Serbia
Worldwide
Secondary school-lyceum No. 72, Tashkent, 1994
Belgrade, Serbia
Worldwide
Secondary school-lyceum No. 72, Tashkent, 1994

Profile attachments

Aleksandr Rzhanov – IT Systems Engineer.pdf

About me

I design and run the systems businesses actually run on. 30+ years in IT, since 1994: built ISP infrastructure and a company data center from scratch, ran IT operations for a Norwegian IoT company (AWS and Azure costs down 50%+ in 6 months). Remote or Belgrade. English, Russian.

Amazon Web ServicesAtlassian ConfluenceAtlassian JiraMicrosoft AzureLinuxDevOpsDomain Name System (DNS)GitHubHyper-VInformation Technology OperationsVirtual Private Networks (VPN)Windows ServersRoutingAzure Active DirectoryAnsibleServer AdministrationVMware InfrastructureGoogle CloudFirewalls (Computer Science)GitLabGitlab-ciSlackCloudflareCloud MigrationCloud OptimizationTerraformCiscoDockerVMware
Focus: IT infrastructure audit and modernization; cloud migration and cost optimization (AWS, Azure, GCP, hybrid and on-premise); outsourced IT operations for small and mid-sized companies; infrastructure and DevOps support for digital agencies (hosting, deployments, monitoring). Skills and tools: Linux and Windows Server administration; networks (routing, VPN, firewalls, Wi-Fi, Cisco, Ubiquiti UniFi); email infrastructure, DNS, Cloudflare (DNS, WAF, Zero Trust); Microsoft 365, Google Workspace, SSO and access management, 1Password; backups, disaster recovery, monitoring and alerting; Docker, Terraform, Ansible, GitHub Actions, GitLab CI; security and GDPR-aligned practices, IT documentation; Notion, Slack, Jira, Confluence; workflow automation and AI-assisted IT operations.

Experience

Professional experience10+ years
Freelancer since2011

Languages

EnglishFluentRussianNative speaker

Project history

Staff DevOps Engineer

Grid Dynamics

Internet & IT

1000-5000 team member

SRE platform engineering for a Fortune-50 retailer; Python MCP server, CI/CD controls, Docker, GitHub Actions.

Founder, IT Infrastructure & Operations Consultant

AR Solutions

Internet & IT

IT infrastructure, cloud and operations for small businesses and agencies.

DevOps Engineer

Dazlab (Australia, remote)

Internet & IT

< 10 team member

Terraform IaC, GitHub Actions CI/CD, GCP, Docker, monitoring and alerting, cloud cost optimization.

Senior IT Systems Operations Manager / Engineer

SENIORLEADS (California, USA, remote)

Marketing, PR and design

10-50 team member

Rebuilt outdated infrastructure, migrated to AWS, Docker/LXC, DNS and email deliverability, Cloudflare (DNS, WAF, Zero Trust), 24/7 monitoring, automated backups, secrets management.

IT Systems Operations Manager

XEPTO AS (Oslo, Norway, remote)

Energy, Water & Environment

< 10 team member

IoT company providing battery-powered monitoring and alarm solutions for municipal water and wastewater and for mobile storage security. Remote role. Reported directly to the COO and CEO.

Ran day-to-day IT operations: hybrid on-premise and multi-cloud infrastructure, development environments, monitoring, collaboration tools, DNS, network, email and backups.

- Reduced AWS and Azure costs by 50%+ within the first 6 months
- Maintained Microsoft 365 and Azure infrastructure
- Implemented SSO between Azure and AWS
- Coordinated access and environments for external vendors who developed and updated the application software
- Created an organization-wide access control chart for data security
- Implemented GDPR best practices for data handling
- Managed Notion, Jira and Confluence for documentation and collaboration, integrated with Slack
- Improved monitoring of web applications and systems for early threat detection
- Documented all IT operations and procedures

Technologies: AWS (EC2, S3, Route53, CloudWatch), Azure, Microsoft 365, Linux, Notion, Jira, Confluence, Slack, Postfix, backup systems, SSO, 1Password for Developers.

Senior DevOps Engineer

SKUGRID (USA, remote)

Internet & IT

Linux servers, GitLab CI, Ansible.

Senior Support Engineer

Pilbeam & Co. Ltd (UK)

Internet & IT

< 10 team member

UK software and IT services company. Remote role.

Provided IT systems and network troubleshooting for the company's enterprise clients.

- Diagnosed and resolved Linux, Windows and mobile device issues
- Troubleshot client network and connectivity problems
- Delivered remote support with remote access tools and documented resolutions

Technologies: Linux, Windows, mobile platforms, network troubleshooting, remote support tools.

Senior Technical Support Engineer

United Toll Systems (OSSP), Russia

Transport & Logistics

1000-5000 team member

Operator of toll collection systems on Russian federal highways. Onsite role.

Level 2 technical support for complex information systems behind highway toll collection. Performed root cause analysis and implemented fixes for critical incidents.

- Designed and maintained the network connecting remote toll collection points
- Configured Cisco network equipment for reliable data transmission from highway control systems
- Deployed Ubiquiti UniFi wireless bridges for point-to-point links between toll stations
- Introduced network operations and monitoring procedures for the distributed infrastructure

Technologies: Cisco, Ubiquiti UniFi, wireless point-to-point links, network monitoring, troubleshooting, root cause analysis.

Senior Systems Administrator

Kapital Sugurta (Tashkent)

Insurance

Built company data center from scratch, Cisco ASA, Windows Server, Hyper-V, AD, Exchange.

Assistant Project Manager, IT Consulting

ActiveCloud (Softline Group), Tashkent branch

Internet & IT

50-250 team member

International cloud and hosting provider (hosting, domains, IaaS and SaaS). Reported to the HQ Project Manager.

Helped establish the local branch in Uzbekistan in line with corporate standards.

- Adapted and implemented corporate regulations and IT policies for the local branch
- Organized staff training on IT procedures and company standards
- Coordinated the launch of the corporate website and services in the local market
- Managed procurement and delivery of server hardware from the USA to Uzbekistan
- Coordinated with international vendors and partners

Technologies: hosting infrastructure, international project management.

IT Infrastructure Manager

EISST Ltd (Tashkent)

Internet & IT

VMware virtualization, migration of legacy Linux servers to AWS.

Systems and Networks Administrator

BillurNet ISP (Tashkent)

Telecommunications

Built ISP infrastructure, billing, email service mail.uz, hosting and domain registration.

System Administrator

OOO Texnoprosistem (TPS), Tashkent

Telecommunications

50-250 team member

Internet service provider in Tashkent (TPS). Onsite role.

Managed the distributed city network, company servers, remote access points and billing systems.

- Managed dial-up and last-mile connectivity (ADSL, xDSL, leased lines)
- Configured site-to-site VPN between distributed network locations
- Implemented network and system security policies
- Set up monitoring for all networks and systems and produced network performance reports
- Deployed the public email service inbox.uz with spam filtering, antivirus and POP3/IMAP/SMTP over SSL, with multi-domain support
- Provided technical support and troubleshooting for other administrators

Technologies: Linux, Postfix, Dovecot, Cisco, Huawei, Mikrotik RouterOS, site-to-site VPN, billing systems, network monitoring.

System Administrator, Developer, Webmaster

OOO Payvaz, Tashkent

Telecommunications

10-50 team member

Internet service provider in Tashkent. Built the ISP infrastructure from scratch. Onsite role.

- Managed the satellite channel for upstream internet connectivity
- Managed dial-up and last-mile connectivity (ADSL, xDSL, leased lines)
- Built billing, email, traffic accounting and firewall systems
- Configured iptables firewall rules, advanced routing (ip route/rules) and traffic shaping
- Integrated a MySQL database with the email and billing systems
- Upgraded network topology and traffic control
- Set up the technical support and customer service departments, their structure and workflows

Technologies: Linux, satellite communication, iptables, advanced routing, MySQL, Postfix, BIND, billing systems.

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