About
Hi, I’m Arief Januar Rizki.
Senior DevOps Engineer with 9 years total IT experience, 7+ years specialized in DevOps/SRE.
I design, automate, and operate cloud infrastructure across AWS, GCP, and Alibaba Cloud — focusing on reliability, security, scalability, and cost efficiency through infrastructure automation, CI/CD, Kubernetes, observability, and platform engineering.
Proven track record of reducing infrastructure costs by up to 50% and accelerating CI/CD pipelines by up to 60%. Strong background in Kubernetes, Terraform, observability engineering, and security hardening across high-traffic production environments.
This blog documents my technical notes, production lessons, and solutions for real infrastructure challenges. I write about cloud platforms, DevOps workflows, Linux systems, and practical engineering that helps build reliable systems at scale.
What I Work With
Cloud
AWS (EC2, ECS, EKS, ECR, RDS, S3, SSM, ALB, NLB, VPC, IAM, Lambda, Route53, CloudFront, WAF, API Gateway, SQS, SNS) GCP (GCE, GCS, Artifact Registry, IAM) Alibaba Cloud (ECS, OSS, EKS, CLB, NLB)
IaC & Config
Terraform Ansible
CI/CD
GitHub Actions GitLab CI Jenkins ArgoCD Rundeck
Containers
Docker Kubernetes (EKS, GKE, self-managed) AWS ECS/Fargate
Observability
Prometheus Grafana Loki Tempo Cortex OpenTelemetry Datadog ELK Stack PMM Jaeger
Security
Cloudflare WAF HashiCorp Vault OWASP SonarQube Fail2Ban ModSecurity ISO 27001
Databases
MySQL PostgreSQL MongoDB Redis RDS Cloud SQL ProxySQL Pgpool-II
Networking
HAProxy Traefik AWS ALB/NLB Cloudflare DNS/WAF Pritunl VPN AWS IP-Sec VPN AWS VPC AWS Transit Gateway GCP VPC GCP Cloud Load Balancing
Web Server & Reverse Proxy
Nginx Traefik Apache
Messaging
RabbitMQ Kafka NSQ AWS SQS AWS SNS
Scripting
Python Bash/Shell
Virtualization
QEMU/KVM Proxmox Hyper-V
Professional Background
Senior DevOps Engineer — Teknologi Usaha Nusantara (broom.id)
Oct 2023 – Present
Led infrastructure modernization across AWS by redesigning public-facing environments into isolated VPCs for development, infrastructure, and production. Introduced Terraform and Ansible to bring stronger infrastructure-as-code and automation practices into the platform, improving consistency across provisioning, deployment, migration, and operational tasks.
Built a new ECS-based container platform with Terraform, Docker, AWS ECR, and GitHub Actions, while improving access control, deployment workflows, and operational visibility. I also led major cost optimization initiatives, observability migration from Datadog to a self-managed Grafana stack, and ongoing modernization work across both legacy and microservices-based systems.
DevOps Engineer — Mingjaya Sejahtera (ctlyst.id / jamtangan.com / voila.id)
Sep 2021 – Sep 2023
Kubernetes deployments, Terraform infrastructure, security tooling (SonarQube, OWASP), VPN automation, observability integration with data engineering teams.
Site Reliability Engineer — Fintek Karya Nusantara (LinkAja.id)
Apr 2020 – Sep 2021
Production reliability across AWS EKS + Alibaba Cloud Kubernetes. Incident response, RCA, operational automation (Python/Bash/Ansible/Rundeck).
System Administrator & Hadoop Administrator — Solusi 247 Co.
Jul 2017 – Apr 2020
Hadoop cluster management (Cloudera/Hortonworks), system performance tuning, ELK logging, Docker stacks, security hardening (Fail2Ban, ModSecurity).
IT Support Engineer Intern — PD Pasar Resik Kota Tasikmalaya
Aug 2014 – Feb 2015
MikroTik network configuration, network layout design, troubleshooting.
Freelance & Contract
| Company | Period | Scope |
|---|---|---|
| Her Moves Indonesia | Oct 2025 – Present | Independent DevOps / Technical Consultant |
| Alpha Cipta Teknologi | Sep 2022 – Feb 2024 | CI/CD, HA databases, Grafana stack, Cloudflare WAF, self-hosted email |
| Royal Phinisi / comodo.id | Aug – Dec 2023 | GCP, Terraform, PostgreSQL HA, NSQ, Typesense, Cloudflare DNS/WAF |
| Sphere Global Solusi Co. | Sep 2018 – Aug 2023 | VM deployments, GitLab CI/CD, monitoring, MySQL/PostgreSQL replication, backups |
| Pranagroup Co. | Jul 2021 – Dec 2023 | Jenkins CI/CD, Traefik, DB tuning, SSL automation, DigitalOcean |
| DPR RI | Sep 2021 – Apr 2022 | On-prem Hadoop stack (Ambari, HDFS, YARN, Hive, HBase, Spark, NiFi, Metron) |
Scope: CI/CD pipelines, Terraform deployments, HA databases, observability stacks, VPN/email infrastructure, on-prem Hadoop.
Things I’ve Built
Crypto Trading Bot
Python-based algorithmic trading with breakout, pullback, scalping, and volume spike strategies. Migrated from Lambda to systemd for latency/cost optimization.
smallPict
WordPress plugin for image compression + WebP/AVIF conversion. Serverless AWS Lambda backend with Freemius SaaS monetization.
Certifications & Education
AWS Certified Solutions Architect – Associate (SAA-C03) — Feb 2020
AWS Certified SysOps Administrator – Associate — Nov 2020
B.Eng. Informatics Engineering — Universitas Siliwangi, Tasikmalaya (2011–2017)
Open Source
Slackware Linux Indonesia contributor — planet.slackware-id.org maintenance, SlackBuilds, open-source packaging.