Alexey Sapunov

Responsibilities:

• Developed and implemented IT strategies to support business objectives, ensuring scalability, security, and operational efficiency
• Managed a team of 35 engineers and 50 support specialists to ensure uninterrupted operation of IT systems critical for payment services
• Oversaw the IT budget with a focus on aligning expenditures with strategic priorities
• Introduced a hybrid infrastructure model with partial migration of services to the cloud to enhance reliability and scalability
• Collaborated closely with development teams to design internal products and systems aimed at improving fault tolerance and service performance
• Worked in tandem with the information security team to ensure compliance with PCI DSS standards, protect client data, and mitigate risks
• Established policies for monitoring, incident management, and disaster recovery to maintain SLA compliance at 99.99%
• Communicated IT goals, risks, and opportunities effectively to senior management to align technology initiatives with business priorities
• Managed vendor relationships and negotiated contracts for key projects

Achievements:

• Increased SLA levels from 99.9% to 99.99%, critical for transactional services
• Optimized IT infrastructure costs by 15% without compromising service quality by revising vendor contracts and introducing cost-effective solutions
• Reduced incident response times by 30% through the implementation of advanced monitoring tools and workflows
• Successfully implemented a hybrid infrastructure model by migrating critical services to the cloud while maintaining on-premises reliability
• Deployed DDoS protection measures across all data centers to ensure uninterrupted service availability
• Automated key monitoring and incident management processes, reducing operational overheads

Responsibilities:

• Designed a complex distributed network for payment services with high availability (99.995%) across three geographically dispersed data centers with redundancy at all levels (routers, switches, servers)
• Collaborated closely with development teams to ensure the network supported high-load transactional services efficiently
• Configured secure VPN connections (IPsec, SSL) for client and partner communication
• Integrated the network with VMware virtual environments for fault tolerance and scalability under increasing workloads
• Partnered with the information security team to implement PCI DSS-compliant data protection measures critical for financial transactions
• Monitored network performance using Zabbix and Grafana tools; resolved incidents in real-time

Achievements:

• Successfully implemented a highly redundant network architecture that ensured uninterrupted operation of payment services even during peak loads
• Achieved a high availability rate of 99.995% through comprehensive redundancy across all network layers
• Built a scalable network architecture capable of supporting growing client demands without compromising performance

Responsibilities:

• Designed and deployed enterprise networks (LAN, WLAN, WAN) for commercial and government organizations using Cisco equipment
• Configured servers, routers, switches, and other networking devices to meet customer requirements
• Ensured network security through access control measures and disaster recovery planning
• Mentored junior engineers on technical issues and best practices

Achievements:

• Successfully implemented several complex projects for corporate clients, including the deployment of advanced VPN networks.
• Conducted reorganization of existing networks, resulting in significantly improved availability, security, and reliability of clients’ infrastructure.
• Optimized network solutions tailored to clients’ specific needs, enhancing operational efficiency and reducing maintenance costs.
• Actively collaborated with clients to analyze their requirements and design technical solutions aligned with their business objectives

Started my career in IT in 2003 as a Linux System Administrator and IP Telephony Engineer. This foundational experience provided me with deep technical knowledge in server administration, networking technologies, and ensuring uninterrupted operation of corporate infrastructure.