Wawang Holanda
DEVOPS
Indonesia
wawang.holanda@gmail.com
Skills
Cloud Platforms (AWS, GCP)
Advanced
Infrastructure as Code (Terraform, Ansible)
Advanced
Containerization & K8s (Docker, EKS, Rancher)
Advanced
CI/CD Pipelines (GitLab CI, GitHub Actions, Jenkins)
Advanced
Networking & Security (VPN, Load Balancer, Firewalls)
Advanced
Observability & Logging (Grafana, ELK Stack)
Advanced
Scripting & Automation (Python, Bash)
Advanced
Databases & Queues (PostgreSQL, Kafka, NoSQL)
Intermediate
Aliyun Cloud
Basic
Languages
Indonesian
English
Work Experience
DevOps & Cloud Projects (Personal Goal Pursuit)
Des 2025 - Current
- - Architected and provisioned scalable cloud infrastructure on AWS utilizing Docker Compose for application containerization.
- - Configured AWS Auto Scaling Groups integrated with AWS Systems Manager (SSM) for secure, keyless server management and high availability.
- - Administered, tuned, and optimized PostgreSQL databases and Apache Kafka message brokers for enhanced system performance and reliability.
- - Implemented secure network connectivity using WireGuard VPN for encrypted remote access and node communication.
- - Established real-time observability and resource monitoring using Grafana dashboards for system metrics and log analysis.
- - Built automated CI/CD pipelines via GitHub Actions to streamline Docker Compose application deployments to AWS.
Platform Engineering Specialist / PT. Fintek Karya Nusantara
Oct 2019 - Nov 2025
- - Executed seamless infrastructure migration from legacy on-premise environments (Telkomsel) to AWS & GCP multi-cloud architecture.
- - Designed and implemented end-to-end multi-cloud networks across AWS & GCP, including IP address grouping, multi-zone VPCs, layered subnetting (Public, Private, DB, EKS), ALB/NLB, and security groups.
- - Architected secure network integrations connecting LinkAja with external partners using StrongSwan, HAProxy, Site-to-Site VPNs, and Leased Lines.
- - Established automated IaC workflows using Terraform, Atlantis, HashiCorp Vault, and GitLab CI to standardize infrastructure provisioning.
- - Developed custom reusable Terraform modules (VPC, EKS, RDS, EC2, ASG) integrated with GitLab CI pipelines for automated infrastructure updates.
- - Built automated CI/CD pipelines using GitLab CI for seamless containerized deployments to Kubernetes (EKS) clusters.
- - Spearheaded R&D on Terraform automate operational tasks.
- - Conducted Proof of Concept (PoC) on Aliyun Cloud to evaluate feature compatibility, performance, and cost efficiency for future expansion.
Senior DevOps Engineer / Grab
Feb 2017 - Sep 2019
- - Monitored mission-critical web services and software applications to ensure high availability, optimal performance, and strict SLA compliance.
- - Diagnosed system alarms, conducted in-depth Root Cause Analysis (RCA), and implemented proactive preventive measures to minimize incident reoccurrence.
- - Rapidly troubleshot and resolved complex technical production issues to maintain system reliability and minimize business downtime.
- - Automated infrastructure provisioning using Terraform and Ansible, drastically reducing environment setup time from days to minutes.
- - Built and optimized automated CI/CD pipelines using Jenkins to accelerate deployment workflows and release cycles.
- - Optimized AWS cloud resource utilization and operational cost efficiency by engineering dynamic AWS Auto Scaling solutions.
- - Designed and implemented automation frameworks and custom internal tools to streamline software deployment and enhance developer productivity.
- - Collaborated cross-functionally with development teams to build integrated deployment and monitoring solutions for web applications.
- - Performed technical system analyses to provide actionable insights for improving overall infrastructure scalability and robustness.
- - Championed DevOps culture, best practices, and knowledge-sharing across the engineering department to accelerate delivery cycles.
DevOps & Cloud Projects (Personal Goal Pursuit)
Sept 2016 - Jan 2017
- - Deployed and configured Rancher for simplified Kubernetes (K8s) cluster management, deployment orchestration, and multi-cluster monitoring.
- - Administered, tuned, and optimized PostgreSQL databases and Apache Kafka message brokers for enhanced system performance and reliability.
- - Established real-time observability and resource monitoring using Grafana dashboards for system metrics and log analysis.
- - Built automated CI/CD pipelines via Gitlab to streamline Docker Compose application deployments to GCP.
SysOps Engineer | HappyFresh
May 2016 - Aug 2016
- - Managed and maintained cloud infrastructure services, implementing self-healing mechanisms to ensure high platform availability and fault tolerance.
- - Enhanced full-stack visibility by deploying advanced monitoring, custom metrics, and log analytics solutions covering both system and application layers.
- - Conducted Root Cause Analysis (RCA) on critical platform incidents and implemented corrective actions to ensure long-term stability.
- - Built and optimized deployment tools to support continuous delivery workflows and accelerate engineering release cycles.
- - Optimized cloud performance and network architectures, including secure private cloud access and VPN configurations.
- - Developed automated system tools and scripts to streamline routine server maintenance and operational tasks.
Site Reliability & DevOps Engineer | PT Moka Teknologi Indonesia
Nov 2015 - May 2016
- - Engineered software solutions and automation frameworks to enhance the availability, scalability, latency, and operational efficiency of Moka's core services.
- - Diagnosed and resolved production issues across mission-critical services, implementing self-service automation to prevent incident recurrence.
- - Contributed to system architecture design, establishing technical standards and best practices for resilient, large-scale distributed systems.
- - Managed service capacity planning, demand forecasting, and performance tuning to ensure seamless handling of traffic growth.
- - Participated in periodic 24/7 on-call rotations, maintaining strict SLA/SLO commitments for critical web and mobile backend services.
Site Infra Engineer | Traveloka.com
Apr 2014 - Oct 2015
- - Spearheaded a major AWS network migration strategy, moving 360+ EC2 instances from Classic to VPC with zero service disruption.
- - Architected highly available multi-tiered Linux server environments, securing perimeter networks via MikroTik, iptables, CSF firewalls, and Nginx reverse proxies.
- - Automated end-to-end server provisioning, multi-server EC2 deployments, and database backups using Ansible, Python, Jinja, Shell scripting, and AWS S3.
- - Deployed and maintained scalable NoSQL/SQL database clusters, including MongoDB (ReplicaSets & Sharding), PostgreSQL, Cassandra, Redis, and Memcached.
- - Established centralized logging (ELK Stack) and dynamic monitoring systems (Icinga, Graphite, Grafana, Collectd) with auto-discovery for new instances.
- - Centralized enterprise identity and access management across server fleets by deploying FreeIPA (LDAP).
- - Championed DevOps cultural shift from traditional operations to agile deployment, automation, and continuous observability.
Network & System Administrator | FAIMS Media
Jul 2012 - Apr 2014
- - Administered end-to-end IT infrastructure, managing Linux, Windows, and macOS environments, performance tuning, automated backup/restore routines, and system updates.
- - Configured and maintained enterprise TCP/IP networks, firewalls, routers (MikroTik), and managed switches (HP) to ensure secure, high-speed office connectivity.
- - Implemented highly available MySQL Master-Master replication clusters for continuous database uptime and data redundancy.
- - Authored comprehensive technical documentation, including multi-tiered network topology diagrams, System Access Management procedures, and Business Continuity / Disaster Recovery Plans (BCP/DRP).
Network Operations Controller Staff | PT. REALTECH SOLUSINDO
Apr 2010 - Jun 2012
- - Monitored and maintained mission-critical IT and telecommunications infrastructure to guarantee uninterrupted network and system operations.
- - Conducted real-time system testing, event logging, incident handling, and escalation management to minimize operational downtime.
- - Assisted System, Network, Security, and Telco Engineers with routine operational maintenance, hardware diagnostics, and component repairs.
- - Executed routine software updates, system patches, and scheduled backup operations to maintain data integrity and security compliance.
System Administrator Jr. | 1rstWAP
Aug 2007 - Apr 2010
- - Provided Tier-1 operational support in monitoring, testing, and maintaining IT hardware, servers, and core telecommunication systems.
- - Performed continuous system logging, initial fault diagnosis, and incident escalation to ensure high uptime across services.
- - Collaborated closely with Senior System, Network, and Security Engineers to execute routine maintenance, hardware troubleshooting, and software patching.
- - Managed routine system backup procedures and disaster recovery readiness to maintain business continuity and data integrity.
Education
Gadjah Mada University
1998 - 2007
Bachelor's Degree
Physics