Kerja Sepenuh Masa, LEAD INFRASTRUCTURE ENGINEER di Within Earth Federal Territory - Maukerja

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 Lead Infrastructure Engineer 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