- Deployed 200+ mission-critical Push-to-Talk communication servers across global enterprise customers, delivering scalable solutions for private LTE, on-premises, and multi-cloud environments.
- Served as technical bridge between customers, partners, and engineering teams, translating business requirements into comprehensive system architectures and deployment strategies.
- Led pre-sales technical consulting and solution validation, conducting proof-of-concepts, architecture reviews, and technical presentations for enterprise stakeholders.
- Designed and managed 20+ high-availability Percona MySQL clusters globally, ensuring 99.9% uptime for mission-critical communication infrastructure.
- Conducted comprehensive root cause analysis and presented technical findings and remediation strategies to C-level executives and technical stakeholders.
- Architected containerized deployment solutions using Docker and Rancher, reducing customer onboarding time by 40% and improving solution portability.
- Provided cloud architecture consulting across AWS, GCP, and Alibaba Cloud platforms, advising on best practices for security, scalability, and cost optimization.
- Designed and implemented network security architectures including firewalls, VPNs (IPsec/OpenVPN), and private network deployments for government and enterprise clients.
- Developed automation frameworks using Bash and Ansible, reducing manual deployment errors by 60% and accelerating delivery timelines.
- Implemented comprehensive monitoring and observability solutions using Zabbix, providing customers with real-time system health insights and proactive alerting.
- Planned and executed complex system upgrades and data migrations with zero downtime, coordinating cross-functional teams and customer stakeholders.
- Performed API validation and performance testing using Postman and JMeter to ensure seamless third-party integrations and system scalability.
- Delivered technical training and knowledge transfer sessions for customers and partners across Singapore, India, Indonesia, and Philippines, ensuring successful solution adoption.
Professional Experience
- Implemented and managed WordPress-based e-commerce infrastructure hosted on virtualized servers, ensuring high availability and stable operations.
- Maintained and monitored VM-hosted web servers, ensuring system stability, performance, and uptime.
- Administered and optimized Nginx, PHP-FPM, MariaDB, and Memcached to deliver fast, reliable web performance.
- Configured and managed SSL/TLS certificates, securing customer transactions and web communications.
- Designed and maintained automated backup strategies, ensuring data integrity and rapid recovery.
- Performed regular software upgrades, patching, and system maintenance to improve security and reliability.
- Monitored server health and performance, responding to alerts and proactively preventing service disruptions.
- Investigated and resolved website performance bottlenecks, improving responsiveness and user experience.
- Troubleshot web application and hosting issues, minimizing downtime and customer impact.
- Diagnosed and resolved infrastructure-level hosting issues, coordinating fixes across web, database, and OS layers.
- Managed Linux server environments, ensuring stability, security, and performance across shared hosting platforms.
- Administered virtualization platforms including Hyper-V and SolusVM (KVM) for customer hosting environments.
- Configured, maintained, and optimized web servers (Nginx, Apache HTTP Server) for multi-tenant hosting workloads.
- Implemented and managed DNS services using BIND9, supporting reliable domain resolution for customer domains.
- Operated and maintained Nginx reverse proxy infrastructure, improving traffic handling and service availability.
- Managed hosting control panels (Plesk and cPanel/WHM), providing provisioning, configuration, and troubleshooting support.
- Administered Windows Server environments, supporting customer application and hosting requirements.
- Implemented server backup and recovery procedures, ensuring data protection and rapid restoration during incidents.
- Performed advanced troubleshooting during server crashes and system failures, minimizing downtime and customer impact.
- Deployed and maintained hosting services for end customers, ensuring SLA compliance and service reliability.
- Conducted drive tests and walk tests for 3G and 4G networks, collecting RF performance data to support coverage analysis and network optimization.
- Assisted in radio frequency (RF) measurements and data validation, contributing to network quality assessment and reporting.
- Assisted with onsite verification of antenna orientation, tilt, and BTS positioning, ensuring alignment with RF planning and coverage requirements.
Key Enterprise Deployments
- Delhi Police Mission-Critical Communications: Deployed enterprise-scale TASSTA infrastructure supporting 1,000+ users across metropolitan area, delivered comprehensive technical training for IT operations team.
- Athena Security (Singapore): Led technical consultation and product training for security operations deployment, ensuring seamless integration with existing infrastructure.
- Indonesia Traffic Police (Korlantas SIMKOMLA): Deployed pilot project for national traffic management communication system with redundant failover capabilities.
- Philippine National Police (PNP) MCX Deployment: Delivered Mission Critical Push-to-Talk solution integrating with LTE network infrastructure, supporting nationwide law enforcement operations.
Languages
English
Professional Working Proficiency
Bahasa Indonesia
Native
Bahasa Minang
Native