Zaenal Akhmad Rifai
Available for Opportunities

Zaenal Akhmad Rifai

Professional

Senior IT Engineer with 10+ years building and operating large-scale infrastructure at companies including Smartfren and Detik.com — from Hadoop clusters and Kubernetes deployments to CI/CD pipelines and data centre operations. Currently founder of Doctor Web, an IT solutions company in Karawang, where I deliver cloud infrastructure services and independently built

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

Skills

PythonGoReactSqlPostgresqlMysqlAwsAzureDockerKubernetesCi/CdGitLinuxNginxIos

Experience

Feb 2025 – Sekarang
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 to local businesses •Built and launched Laris — a full-featured browser-based POS system for Indonesian SMEs, developed with React/Vite, featuring offline-first sync, multi-outlet management, QRIS payments, thermal printer integration, and enterprise-grade security (JWT, WAF, rate limiting). Live at doctor.web.id/product •Delivered freelance server setup and configuration for commercial projects including TGShop, SuperFrezz, Mallgue, and Super Project •Earned 5 IT certifications (TP-Link OCNA, OCNA R&S, VIGI, UniFi UFSP, D-Link DCNA) and currently pursuing AWS, Azure, and Google Cloud certifications

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

•Managed Proxmox virtualisation platform hosting 40 VMs across client environments; administered Zimbra mail server for 1 enterprise client (200 users) •Maintained infrastructure visibility and uptime through proactive monitoring with Zabbix and Observium •Administered Apache, Nginx, MySQL, and PostgreSQL servers across multiple client environments •Operated data centre facilities and configured OPNSense proxy/firewall for perimeter security

Oct 2020 – Nov 2023
Senior System Operations Engineer
Smartfren

•Deployed and maintained a 230-node Hadoop cluster via Ambari across production environments; set up MySQL, PostgreSQL, and NFS storage solutions •Built ELK Stack observability platform monitoring 240 VMs across the infrastructure fleet, enabling proactive incident detection •Implemented fully automated CI/CD with Jenkins and Ansible — every approved push request triggered automatic deployment to target environments, eliminating manual uploads for 2 development teams across 5 pipelines •Conducted penetration testing with ZAP Proxy and application load testing with Locust to ensure system security and resilience

Mar 2019 – Feb 2020
Big Data System Engineer
Datasynthesis

•Installed end-to-end Hadoop ecosystem using Ambari, enabling repeatable and automated cluster deployments •Managed HDFS data operations including backup/restore and ACL-based access governance •Automated operational tasks with Jenkins; monitored resources with ELK Stack •Authored customer-facing installation documentation adopted as the official deployment reference

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 (Linux Virtual Server) for high-availability NameNode and ResourceManager failover, ensuring cluster resilience •Monitored infrastructure with Nagios and performed data centre hardware maintenance and machine replacements

Jul 2014 – Jul 2015
Cloud Support Engineer
CBN Cloud

•Provisioned and configured OpenStack cloud instances and cPanel environments, enabling enterprise customers to go live on the cloud platform •Diagnosed and resolved technical support issues for cloud service customers; managed email deliverability and anti- spam systems to maintain service reliability

Mar 2013 – Jan 2014
IT Staff
Artikulpi

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

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

📬 Get in Touch

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