Infrastructure Lead / Team Lead System Administrator

Salary: $5,000–10,000/month Location: Cyprus (relocation after probation period)

About the Role

We are looking for an experienced Infrastructure Lead / Team Lead System Administrator to take ownership of the company’s entire infrastructure landscape, ensuring the reliability, scalability, security, and performance of mission-critical fintech services.

This is a leadership role combining deep hands-on technical expertise with team management responsibilities.

Requirements

• 5+ years of experience as an Infrastructure Lead, DevOps Engineer, or System Administrator
• Proven experience managing infrastructure teams (5–15+ engineers) and building 24/7 support processes
• Strong Linux administration expertise (Ubuntu/Debian), including kernel, I/O, networking, and advanced troubleshooting
• Hands-on experience with VMware ESXi/vSphere (clusters, HA, DRS, storage, networking)
• Experience designing and operating bare-metal infrastructure and private on-premise cloud environments
• Experience supporting high-load, highly available production systems
• Strong expertise with Nginx (reverse proxy, rate limiting, geo-routing, ACLs, caching)
• Deep understanding of PostgreSQL (replication, failover, performance tuning, backup strategies)
• Experience with Redis and RabbitMQ
• Hands-on experience building CI/CD pipelines using GitLab CI and/or Bitbucket Pipelines
• Automation experience using Ansible, Bash, and Python
• Experience building monitoring and observability platforms using Prometheus, Grafana, ELK/OpenSearch, and alerting systems
• Strong networking knowledge: VLANs, LACP, routing, VPNs, firewalls, and network segmentation
• Experience with Cloudflare services (WAF, Zero Trust, CDN, rate limiting)
• Experience implementing Zero Trust and secure VPN access models
• Strong experience with Windows Server (2016/2019/2022)
• Practical experience deploying and maintaining RDS (Remote Desktop Services) environments
• Experience with Active Directory administration
• Experience balancing workloads across RDS hosts
• Ability to effectively manage critical incidents, including production outages and data loss risks
• Strong analytical mindset and result-oriented approach

Responsibilities

• Design, develop, and manage the company’s entire infrastructure ecosystem (on-premise and partially cloud-based)
• Lead and mentor a team of System Administrators and DevOps Engineers (L1–L3)
• Organize and maintain 24/7 support operations, including SLA management, on-call schedules, and escalation processes
• Ensure uninterrupted operation of critical fintech platforms and services
• Design and implement High Availability and Disaster Recovery solutions, including failover, replication, and backup data centers
• Maintain the stability and performance of VMware clusters and virtualized infrastructure
• Build and manage backup and recovery systems, including ransomware protection strategies
• Continuously optimize system performance across compute, storage, networking, and databases
• Develop and improve CI/CD processes for both infrastructure and backend services
• Implement and maintain monitoring, logging, and alerting solutions
• Establish and enforce infrastructure security policies, access controls, segmentation, and Zero Trust architecture
• Manage network infrastructure, including VLANs, VPNs, load balancing, and traffic isolation
• Collaborate closely with development teams to improve system reliability, scalability, and deployment efficiency
• Maintain infrastructure documentation, operational procedures, and technical standards