Zaenal Akhmad Rifai

Zaenal Akhmad Rifai

Senior IT Infrastructure & Big Data Engineer

Senior IT Engineer with 10+ years building and operating large-scale infrastructure at Smartfren and Detik.com — from Hadoop clusters and Kubernetes to CI/CD pipelines and data centre operations. Founder of Doctor Web, delivering cloud infrastructure and a commercial POS product. AWS, Azure, ArangoDB, Ubiquiti, and TP-Link certified.

✉ togatta.fudo@gmail.com ☎ +62 858-833-0332-0 📍 Karawang 🔗 linkedin.com/in/zaenal-akhmad-rifai-59516ba8

Skills

AWSAzureDockerKubernetesRancherOpenStackJenkins CI/CDHadoopHDFSAmbariHiveYARNApache SolrELK StackFlumeRapidminerLinuxProxmoxNginxApacheTomcatIPTablesZimbraLVSZabbixObserviumNagiosTP-Link OmadaUbiquiti UniFiOPNSenseD-LinkZAP ProxyPenetration TestingMySQLPostgreSQLArangoDBBashPythonAnsible

Experience

Feb 2025 – Present
Founder · IT Consultant & Product Developer
Doctor Web

Founded Doctor Web, an IT solutions company in Karawang offering cloud infrastructure, server setup, cybersecurity, and digital product development. Built and launched Laris, a browser-based POS system for Indonesian SMEs with offline-first sync, multi-outlet management, QRIS payments, thermal printer integration, and enterprise-grade security. Delivered freelance server setup for TGShop, SuperFrezz, Mallgue, and Super Project. Earned 5 IT certifications.

Nov 2023 – Feb 2025
IT Infrastructure Engineer (Freelance)
ITM Indonesia

Managed Proxmox virtualization platform hosting 40 VMs; administered Zimbra mail server for 1 enterprise client (200 users). Maintained infrastructure visibility with Zabbix and Observium. Administered Apache, Nginx, MySQL, and PostgreSQL servers. Operated data centre facilities and configured OPNSense proxy/firewall.

Oct 2020 – Nov 2023
Senior System Operations Engineer
Smartfren

Deployed and maintained a 230-node Hadoop cluster via Ambari; set up MySQL, PostgreSQL, and NFS storage. Built ELK Stack monitoring platform for 240 VMs. Implemented fully automated CI/CD with Jenkins and Ansible for 2 teams across 5 pipelines. Conducted penetration testing with ZAP Proxy and load testing with Locust.

Mar 2019 – Feb 2020
Big Data System Engineer
Datasynthesis

Installed end-to-end Hadoop ecosystem using Ambari. Managed HDFS data operations including backup/restore and ACL governance. Automated operational tasks with Jenkins; monitored with ELK Stack. Authored customer-facing installation documentation.

Nov 2018 – Mar 2019
Big Data System Engineer
Neviim

Deployed Hadoop cluster using Ambari and managed HDFS data lifecycle (backup/restore, ACLs) in a short-term project engagement.

Jul 2015 – Nov 2018
System Administrator
Detik.com

Installed and managed a 26-node Hadoop cluster (18 production, 4 staging, 4 dev) alongside MySQL/PostgreSQL databases and Apache Flume pipelines across 30 data centre servers. Implemented LVS for high-availability NameNode and ResourceManager failover. Monitored with Nagios, performed data centre hardware maintenance.

Jul 2014 – Jul 2015
Cloud Support Engineer
CBN Cloud

Provisioned and configured OpenStack cloud instances and cPanel environments. Diagnosed and resolved technical support issues; managed email deliverability and anti-spam systems.

Mar 2013 – Jan 2014
IT Staff
Artikulpi

Configured network infrastructure, delivered end-user training, produced technical documentation. Performed QA testing and bug reporting; produced user manuals.

Education

Bachelor of Informatics Engineering (Teknik Informatika)
STT-PLN Jakarta
2008 – 2013

Projects

Laris
A full-featured browser-based POS system for Indonesian SMEs, featuring offline-first sync, multi-outlet management, QRIS payments, and enterprise-grade security.

Certifications

AWS Cloud Practitioner
Amazon Web Services
Microsoft Azure Fundamentals (AZ-900)
Microsoft
ArangoDB Certified Professional
ArangoDB
Platform Administration Master
Rapidminer
UniFi Full Stack Professional (UFSP)
Ubiquiti
Omada Certified Network Administrator
TP-Link
OCNA Routing & Switching
TP-Link
VIGI Certified Security Administrator
TP-Link
D-Link Certified Network Associate
D-Link

Languages

Bahasa Indonesia
Native
English
Professional

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