Work & Implementations
A comprehensive history of professional work, research, and technical implementations across cloud, DevOps, security, and infrastructure engineering.
ArgoCD GitOps Implementation inside AWS EKS
PT. IDstar Cipta TeknologiGitLab CIArgoCDAWS EKSHelmDockerECR
ArgoCD GitOps Implementation inside AWS EKS
PT. IDstar Cipta TeknologiRole: DevOps Engineer · Goal: Streamline application deployment and infrastructure management using GitOps methodology.
- Developed GitLab CI/CD pipelines to build and push Docker images to AWS ECR.
- Configured ArgoCD to monitor Git repositories for application and infrastructure manifests using Helm Charts.
- Implemented ArgoCD Image Updater for automated image tag synchronization from AWS ECR.
- Automated cluster state synchronization between Git and AWS EKS.
Outcomes
- Efficient and automated application delivery process.
- Single source of truth for all Kubernetes cluster configurations.
- Enhanced scalability and observability for cloud-native applications.
AWS EKS: Kubernetes Cluster Installation and Configuration
PT. IDstar Cipta TeknologiTerraformAWS EKSKubernetesHelmVPC
AWS EKS: Kubernetes Cluster Installation and Configuration
PT. IDstar Cipta TeknologiRole: DevOps Engineer · Goal: Set up a production-ready Kubernetes cluster on Amazon EKS for scalable containerized workloads.
- IaC: Provisioned EKS cluster, secure VPC, subnets, and security groups using Terraform.
- Node Management: Deployed managed EC2 node groups integrated with the EKS control plane.
- Networking: Configured VPC CNI for efficient pod networking and ALB/NLB for external traffic.
- Security: Implemented IAM roles and granular Kubernetes RBAC policies.
- Scalability: Deployed Cluster Autoscaler and Horizontal Pod Autoscaler (HPA).
- Tooling: Installed Helm, ArgoCD, cert-manager, and Nginx Ingress.
Outcomes
- Production-grade EKS environment supporting high-availability critical applications.
- Simplified resource management through automated scaling and monitoring.
Implement DevSecOps GitLab CI/CD Pipeline
PT. IDstar Cipta TeknologiGitLabAWSDockerTerraformAnsible
Implement DevSecOps GitLab CI/CD Pipeline
PT. IDstar Cipta TeknologiRole: DevOps Engineer
- Deployed a self-hosted GitLab instance on AWS EC2 using Docker containers.
- Automated infrastructure provisioning and server configuration with Terraform and Ansible.
- Designed and implemented CI/CD pipelines to streamline deployment for multiple development teams.
DevSecOps Pipeline Using Trivy
PT. IDstar Cipta TeknologiGitLab CITrivyDockerBash
DevSecOps Pipeline Using Trivy
PT. IDstar Cipta TeknologiRole: DevOps Engineer
- Integrated Trivy security scanner into GitLab CI/CD pipeline stages.
- Automated vulnerability detection and reporting for container images prior to deployment.
- Improved the overall security posture by reducing manual audit overhead.
GitLab Runner Cost Optimization Using Spot Instances
PT. IDstar Cipta TeknologiAWS EC2 SpotASGGitLab RunnerDockerTerraform
GitLab Runner Cost Optimization Using Spot Instances
PT. IDstar Cipta TeknologiRole: DevOps Engineer
- Successfully migrated GitLab Runners to AWS EC2 Spot Instances, reducing infrastructure costs by 60–70%.
- Configured Auto Scaling Groups (ASG) to ensure runner availability and scalability.
- Implemented fallback strategies with On-Demand instances to maintain pipeline reliability.
Self-Hosted GitLab for Company Code Repository
PT. IDstar Cipta TeknologiGitLab CE/EEUbuntuNginxPostgreSQLDocker
Self-Hosted GitLab for Company Code Repository
PT. IDstar Cipta TeknologiRole: DevOps Engineer
- Installed and secured a high-availability self-hosted GitLab platform.
- Integrated PostgreSQL backend and Nginx reverse proxy with SSL/TLS.
- Managed repository migration and implemented RBAC/SSO for developer access.
- Automated backup and disaster recovery procedures for data protection.
Migrate to Docker and Optimize WordPress Company Profile
PT. IDstar Cipta TeknologiDockerDocker ComposeNginxMySQLPHP-FPMLet's Encrypt
Migrate to Docker and Optimize WordPress Company Profile
PT. IDstar Cipta TeknologiRole: DevOps Engineer
- Containerized the WordPress stack for improved portability and scalability.
- Optimized PHP-FPM and Nginx caching, resulting in 40% faster response times.
- Automated SSL/TLS certificate management using Let's Encrypt.
- Established CI/CD workflows for development, staging, and production environments.
DevOps New Generation Banking System: KB Bukopin
PT. IDstar Cipta TeknologiGitLab CIFastlaneKubernetesSonarQube
DevOps New Generation Banking System: KB Bukopin
PT. IDstar Cipta TeknologiRole: DevOps Engineer
- Configured on-premises GitLab Runners to support secure banking build environments.
- Automated mobile app (iOS/Android) releases using Fastlane and GitLab CI.
- Integrated SonarQube for continuous code quality and static security analysis (SAST).
- Collaborated in an Agile/Scrum environment to ensure mission-critical platform compliance.
Product Capstone: Communicare (Bangkit Academy 2023)
Bangkit Academy · Google / GoTo / TravelokaGCPFirebaseCloud RunGitHub Actions
Product Capstone: Communicare (Bangkit Academy 2023)
Bangkit Academy · Google / GoTo / TravelokaRole: DevOps & Cloud Lead
- Orchestrated the cloud environment on GCP to host backend and Machine Learning services.
- Automated deployment pipelines using GitHub Actions for seamless service delivery.
- Managed containerized services on Cloud Run, ensuring scalability for user traffic.
- Authored comprehensive documentation for system design and deployment procedures.
OCR Machine Learning System: EZxtract
PT. IDstar Cipta TeknologiCentOSPythonGunicornNginx
OCR Machine Learning System: EZxtract
PT. IDstar Cipta TeknologiRole: DevOps Engineer
- Configured production-ready server environments for OCR/ML workloads.
- Deployed Python applications with Gunicorn and Nginx reverse proxy for high performance.
- Created systemd services to ensure process resiliency and auto-restarts.
Internal Apps IDStar IDSWP
PT. IDstar Cipta TeknologiDocker ComposeNginxPostgreSQLGitLab CI
Internal Apps IDStar IDSWP
PT. IDstar Cipta TeknologiRole: DevOps Engineer
- Designed microservices architecture for internal company applications using Docker Compose.
- Integrated service orchestration and persistent storage for databases and caching.
- Optimized dev-to-prod workflows through automated GitLab CI/CD pipelines.
Grafana Resource Monitoring, Logging & Alerting System
PT. IDstar Cipta TeknologiGrafanaPrometheusLokiAlertmanagerCloudWatch
Grafana Resource Monitoring, Logging & Alerting System
PT. IDstar Cipta TeknologiRole: DevOps Engineer
- Implemented a centralized observability stack for metrics and log aggregation.
- Designed interactive Grafana dashboards for real-time infrastructure visibility.
- Configured proactive alerting via Slack/Email, significantly reducing MTTR.
Amazon CloudWatch EC2 Resource Monitoring
PT. IDstar Cipta TeknologiAWS CloudWatchSNSIAM
Amazon CloudWatch EC2 Resource Monitoring
PT. IDstar Cipta TeknologiRole: DevOps Engineer
- Configured performance monitoring for EC2 instances with detailed custom metrics (Memory/Disk).
- Established real-time alerting using CloudWatch Alarms and SNS.
- Improved incident response times through performance dashboards.
Self-Hosted Taiga Project Management Tool
PT. IDstar Cipta TeknologiPostgreSQLNginxDockerUbuntu
Self-Hosted Taiga Project Management Tool
PT. IDstar Cipta TeknologiRole: DevOps Engineer
- Deployed and secured a self-hosted Taiga instance for Agile project tracking.
- Configured Nginx reverse proxy with SSL/TLS and managed Dockerized services.
GitLab Event Notification Integration with Mattermost
PT. IDstar Cipta TeknologiGitLabMattermostWebhooks
GitLab Event Notification Integration with Mattermost
PT. IDstar Cipta TeknologiRole: DevOps Engineer · Goal: Deliver real-time notifications for repository and pipeline activities.
- Integrated GitLab webhooks with Mattermost for instant team feedback on CI/CD events.
- Automated notifications for Merge Requests, issues, and pipeline failures.
AWS Cost Alert: SNS Integration With Mattermost
PT. IDstar Cipta TeknologiAWS CloudWatchSNSMattermost
AWS Cost Alert: SNS Integration With Mattermost
PT. IDstar Cipta TeknologiRole: DevOps Engineer · Goal: Establish proactive cloud billing governance.
- Integrated AWS CloudWatch billing alarms with SNS and Mattermost webhooks.
- Provided real-time visibility into usage thresholds and cost spikes.
Website Uptime Monitoring System (Uptime Kuma)
PT. IDstar Cipta TeknologiUptime KumaDockerNginxMattermost
Website Uptime Monitoring System (Uptime Kuma)
PT. IDstar Cipta TeknologiRole: DevOps Engineer
- Deployed Uptime Kuma to track availability and latency for critical company services.
- Configured real-time incident alerting via Mattermost and Email.
Cross-Account Migration of EC2 Instances and S3 Buckets
PT. IDstar Cipta TeknologiAWS CLIAMIS3IAM Roles
Cross-Account Migration of EC2 Instances and S3 Buckets
PT. IDstar Cipta TeknologiRole: DevOps Engineer
- Planned and executed secure cross-account transfers of EC2 resources and S3 data.
- Managed cross-account IAM permissions and verified data integrity post-migration.
OCR Server Migration to GCP
PT. IDstar Cipta TeknologiGCPCompute EngineCloud Storage
OCR Server Migration to GCP
PT. IDstar Cipta TeknologiRole: DevOps Engineer
- Successfully migrated OCR workloads from on-premises to GCP instances.
- Configured network security and firewalls within the GCP environment.
Google Workspace Admin Implementation
PT. Tosan Perkasa UnicornGoogle WorkspaceDNSSPF/DKIM/DMARC
Google Workspace Admin Implementation
PT. Tosan Perkasa UnicornRole: IT Support & Network Engineer · Goal: Centralize company collaboration and user management.
- Deployed Google Workspace Admin Console and migrated user accounts/emails.
- Configured DNS authentication (SPF, DKIM, DMARC) for secure email delivery.
- Established role-based access control and 2FA security policies.
On-Premises Infrastructure Migration to AWS Cloud
Sekolah DevOps Cilsy · Batch #14AWS EC2RDSS3TerraformAnsible
On-Premises Infrastructure Migration to AWS Cloud
Sekolah DevOps Cilsy · Batch #14- Designed and executed migration of on-premises workloads to AWS infrastructure.
- Automated provisioning using Infrastructure as Code (Terraform) and configuration with Ansible.
- Configured VPC networking and security groups for cloud compliance.
Container Orchestration Infrastructure: Kubernetes
Sekolah DevOps Cilsy · Batch #14KubernetesDockerHelmNginx Ingress
Container Orchestration Infrastructure: Kubernetes
Sekolah DevOps Cilsy · Batch #14- Orchestrated microservices deployment on a production-like Kubernetes cluster.
- Implemented Nginx Ingress Controller for traffic routing and load balancing.
On-Premises Infrastructure for Web Apps
Sekolah DevOps Cilsy · Batch #14LinuxNginxPostgreSQLDockerProxmox
On-Premises Infrastructure for Web Apps
Sekolah DevOps Cilsy · Batch #14- Built a robust on-premises infrastructure using virtualization for web hosting.
- Configured web servers and database environments for secure internal application access.
Tendean Office LAN Network Installation
PT. Tosan Perkasa UnicornCiscoMikrotikCat6Ubiquiti
Tendean Office LAN Network Installation
PT. Tosan Perkasa UnicornRole: IT Support & Network Engineer · Goal: Implement reliable connectivity for a new office location.
- Designed and installed comprehensive LAN infrastructure using Cisco and Mikrotik.
- Deployed structured cabling (Cat6) and managed Wi-Fi coverage with Ubiquiti.
HR System Migration to Proxmox Virtualization
PT. Tosan Perkasa UnicornProxmox VELinuxMySQL
HR System Migration to Proxmox Virtualization
PT. Tosan Perkasa UnicornRole: IT Support & Network Engineer
- Virtualized legacy physical servers using Proxmox VE to improve resource utilization.
- Established automated backup and snapshot policies for critical HR data.
Proxmox VE Installation and Configuration
PT. Tosan Perkasa UnicornProxmox VEZFSKVM/LXC
Proxmox VE Installation and Configuration
PT. Tosan Perkasa UnicornRole: IT Support & Network Engineer
- Deployed Proxmox VE as the primary enterprise virtualization platform.
- Configured ZFS storage pools for high-performance virtual disks.
Internet Bandwidth QoS Optimization
PT. Tosan Perkasa UnicornMikrotik RouterOSQoS/HTBTraffic Shaping
Internet Bandwidth QoS Optimization
PT. Tosan Perkasa UnicornRole: IT Support & Network Engineer
- Analyzed traffic patterns and prioritized business-critical bandwidth (VoIP/Video).
- Reduced network latency by optimizing traffic markings and queue disciplines.
FortiGate 30E Installation and Configuration
PT. Tosan Perkasa UnicornFortiGate 30EFortiOSVPNIPS/IDS
FortiGate 30E Installation and Configuration
PT. Tosan Perkasa UnicornRole: IT Support & Network Engineer
- Deployed FortiGate firewall for advanced threat protection and secure remote access.
- Configured IPSec/SSL VPN and web filtering policies to secure the office network.
Mikrotik Replacement and Configuration Migration
PT. Tosan Perkasa UnicornMikrotik RouterOSFirewallNATVPN
Mikrotik Replacement and Configuration Migration
PT. Tosan Perkasa UnicornRole: IT Support & Network Engineer
- Managed hardware migration of core routers with zero service downtime.
- Migrated complex firewall, NAT, and VPN configurations to newer Mikrotik models.
Zimbra Email Migration to Google Workspace
PT. Tosan Perkasa UnicornZimbraGoogle WorkspaceDNS
Zimbra Email Migration to Google Workspace
PT. Tosan Perkasa UnicornRole: IT Support & Network Engineer
- Successfully migrated enterprise email from Zimbra to Google Workspace.
- Managed DNS reconfiguration and data transfer for 100+ users.
Zabbix Monitoring System Implementation
PT. Tosan Perkasa UnicornZabbixSNMPMySQLGrafana
Zabbix Monitoring System Implementation
PT. Tosan Perkasa UnicornRole: IT Support & Network Engineer
- Deployed comprehensive monitoring for servers and network appliances.
- Configured real-time alerts for service outages and performance bottlenecks.
VPN IPSec/L2TP Network Implementation
PT. Tosan Perkasa UnicornIPSecL2TPRADIUS
VPN IPSec/L2TP Network Implementation
PT. Tosan Perkasa UnicornRole: IT Support & Network Engineer
- Established secure site-to-site and remote access VPN tunnels.
- Configured RADIUS authentication for centralized user access control.
Bandwidth Improvement and Optimization
PT. Tosan Perkasa UnicornFirewall RulesConnection Tracking
Bandwidth Improvement and Optimization
PT. Tosan Perkasa UnicornRole: IT Support & Network Engineer
- Optimized throughput by fine-tuning firewall rules and connection tracking.
- Achieved measurable improvements in latencies for critical business apps.
Core Router Migration & Replacement
PT. Tosan Perkasa UnicornMikrotikBGP/OSPF
Core Router Migration & Replacement
PT. Tosan Perkasa UnicornRole: IT Support & Network Engineer
- Upgraded core network backbone with high-performance Mikrotik hardware.
- Implemented BGP/OSPF routing for network redundancy and failover.
CCTV System Migration to IP-Based Infrastructure
PT. Tosan Perkasa UnicornIP CCTVNVRNetwork Segmentation
CCTV System Migration to IP-Based Infrastructure
PT. Tosan Perkasa UnicornRole: IT Support & Network Engineer
- Modernized analog surveillance to a high-definition IP-based CCTV system.
- Managed NVR storage configurations and network segmentation for video traffic.
Video Conference Room Infrastructure Installation
PT. Tosan Perkasa UnicornAV SystemsQoSZoomMicrosoft Teams
Video Conference Room Infrastructure Installation
PT. Tosan Perkasa UnicornRole: IT Support & Network Engineer
- Designed and installed audio-visual systems for corporate meeting rooms.
- Integrated dedicated QoS for Zoom and Microsoft Teams reliability.
Computer Network Performance Improvement: Mikrotik
PT. Tosan Perkasa UnicornMikrotik RouterOSFirewall
Computer Network Performance Improvement: Mikrotik
PT. Tosan Perkasa UnicornRole: IT Support & Network Engineer
- Performed deep-dive optimization of router configurations.
- Enhanced network security posture through hardened firewall rules.
CV. Lintas Opsi Gradasi Informatika: LAN Design
Junior Network Engineer InternshipCisco Packet TracerSubnettingVLAN
CV. Lintas Opsi Gradasi Informatika: LAN Design
Junior Network Engineer Internship- Designed Local Area Network (LAN) topologies and IP addressing schemes for small businesses.
- Documented equipment requirements and VLAN segmentation strategies.