About Us
Within Earth Holidays is a leading global B2B travel technology company operating large-scale, mission-critical production systems. We are looking for a hands-on Senior Infrastructure Manager to own and manage our production infrastructure, ensuring high availability, scalability, security, and operational excellence.
Key Responsibilities
- Manage and maintain on-premises Windows and Linux production infrastructure.
- Deploy, configure, and manage physical servers and virtual machines.
- Manage XCP-ng virtualization infrastructure and Xen Orchestra.
- Configure, optimize, and troubleshoot HAProxy load balancers.
- Ensure high availability with a near-zero downtime production environment.
- Plan and execute infrastructure scaling to support business growth.
- Lead production incident response, troubleshooting, root cause analysis, and preventive improvements.
- Drive DevOps and Site Reliability Engineering (SRE) best practices.
- Configure and maintain monitoring, alerting, and capacity planning.
- Manage SQL Server, MongoDB, Redis, ClickHouse, and PostgreSQL infrastructure.
- Manage VPNs, firewalls, DNS, SSL certificates, VLANs, routing, and enterprise networking.
- Implement backup, disaster recovery, business continuity, and security best practices.
- Perform server hardening, patch management, and vulnerability remediation.
- Support CI/CD pipelines and production deployments.
- Automate operational and infrastructure tasks using Bash or PowerShell (Python knowledge is an advantage).
- Evaluate and implement new infrastructure technologies and solutions.
- Maintain technical documentation, SOPs, and infrastructure diagrams.
- Work closely with development teams to improve application reliability and performance.
- Participate in on-call production support and be willing to work rotational shifts, varying working hours, weekends, and public holidays when required.
Required Skills
Operating Systems
• Windows Server (2016/2019/2022)
• Linux (Ubuntu, Debian, CentOS, Rocky Linux)
Virtualization
• XCP-ng
• Xen Orchestra
• Virtual Machine Administration
• Storage Management
Networking
• HAProxy
• Load Balancing
• TCP/IP
• DNS
• VPN
• VLAN
• Routing
• Firewall Configuration
• Reverse Proxy
• SSL Certificates
Databases
• Microsoft SQL Server
• MongoDB
• Redis
• ClickHouse
• PostgreSQL
Strong knowledge of:
• High Availability
• Replication
• Backup & Recovery
• Disaster Recovery
• Performance Tuning
• Capacity Planning
• Troubleshooting
Monitoring
• Datadog
• Zabbix
• Grafana
• Performance Monitoring
• Alerting
• Log Analysis
DevOps
• Git
• CI/CD
• Docker
• Bash or PowerShell Scripting
• Python (Preferred)
Cloud
• Microsoft Azure
• Azure Virtual Machines
• Azure Networking
• Hybrid Infrastructure
Preferred Experience
• Kubernetes
• RabbitMQ
• IIS & .NET Application Hosting
• ELK Stack
• Active Directory
• Microsoft 365
• High-Traffic Production Environments
• Travel Technology / OTA Industry
Soft Skills
- Excellent troubleshooting and analytical skills.
- Strong ownership and accountability.
- Ability to work independently with minimal supervision.
- Calm under pressure during production incidents.
- Strong communication and documentation skills.
- Team player with a proactive attitude.
- Passion for automation, reliability, and continuous improvement.
What We Offer
- Opportunity to manage large-scale, high-traffic production infrastructure.
- Direct reporting to the CTO.
- Exposure to enterprise infrastructure, DevOps, SRE, and cloud technologies.
- Career growth within a fast-growing global travel technology company