About

About

Intro - Arief Januar Rizki

Senior DevOps Engineer with 7+ years of experience designing, automating, and optimizing infrastructure across AWS, GCP, and Alibaba Cloud.
LinkedIn: https://linkedin.com/in/arief-jr Github: https://github.com/4IP / https://github.com/tuxnoob

About Me

Tech-driven Senior DevOps Engineer with a strong track record in system reliability, CI/CD automation, and cost optimization (up to ~40%).
I specialize in Infrastructure as Code, observability, and secure architecture design—building scalable systems that improve performance, reduce costs, and streamline deployments.

Core skills

  • Cloud platforms: AWS, Google Cloud Platform (GCP), Alibaba Cloud.
  • Infrastructure as Code: Terraform.
  • Configuration management: Ansible.
  • CI/CD: GitHub Actions, GitLab CI, Jenkins, ArgoCD.
  • Containers: Docker, Kubernetes, AWS ECS.
  • Observability: Prometheus, Grafana, Datadog, New Relic, CloudWatch, ELK Stack, PMM, Jaeger.
  • Security & compliance: OWASP, WAF, HashiCorp Vault, ISO 27001, Fail2Ban.
  • Databases & caching: MySQL, PostgreSQL, MongoDB, RDS, ProxySQL, Pgpool-II, Redis.
  • Web/app servers & proxies: Nginx, Apache2, Tomcat, uWSGI, HAProxy, Traefik, AWS/GCP load balancers.
  • Messaging/streaming: RabbitMQ, Kafka, NSQ.
  • Scripting: Bash, Python.
  • Virtualization: QEMU/KVM, Proxmox, Hyper-V.
  • Big data ecosystem: Hadoop, Hive, HBase, Solr, Cloudera, Hortonworks.

Experience

Teknologi Usaha Nusantara (broom.id) — Senior DevOps Engineer (Oct 2023 – Present)

  • Modernized a monolithic system into a hybrid architecture by integrating new microservices on AWS ECS while maintaining monolith stability.
  • Shifted compute strategy from AWS Fargate to EC2 Auto Scaling Groups and migrated RDS databases (dev/staging) to self-managed instances.
  • Refactored EC2 workloads and ECS services to run on ARM64 within a private network, reducing infrastructure costs by ~50%.
  • Built CI/CD pipelines using GitHub Actions for backend services and mobile apps (iOS/Android), including unit tests and static analysis with SonarQube.
  • Implemented automated scheduled shutdown workflows (AWS Boto3 + shell scripts) to reduce idle-resource spend.
  • Improved security using Cloudflare WAF and CORS rules; strengthened database security by removing public access to production RDS and applying least-privilege security groups.
  • Implemented monitoring and alerting (Datadog APM with Slack alerts based on golden signals).
  • Migrated distributed tracing/APM from Datadog to Grafana Tempo using OpenTelemetry; added TypeScript instrumentation for NestJS, React, and Next.js services.
  • Built a full Grafana observability stack (Grafana, Tempo, Alloy, Prometheus, Loki, Cortex) to replace Datadog for traces/logs/metrics.
  • Automated service management, user provisioning, and database migration using AWS SSM and Ansible; enabled secure internal access via Pritunl VPN.
  • Deployed workloads to Kubernetes using GitHub Actions CI/CD and provisioned infrastructure with Terraform (reported deployment/provisioning acceleration up to ~60%).

Mingjaya Sejahtera (ctlyst.id, jamtangan.com, voila.id) — DevOps Engineer (Sep 2021 – Sep 2023)

  • Monitored and ensured reliability for legacy and cloud-native applications, including root cause analysis for reliability issues.
  • Automated repetitive tasks using Ansible and Rundeck.
  • Supported Kubernetes clusters on AWS EKS and Alibaba Cloud Kubernetes.
  • Produced technical documentation, on-call rotation guidelines, and incident response policies.

Fintek Karya Nusantara (LinkAja.id) — Site Reliability Engineer (Apr 2020 – Sep 2021)

  • Deployed Hadoop clusters (Cloudera/Hortonworks) on VM and on-prem; tuned YARN, Hive, and HBase performance.
  • Configured virtualization (QEMU/KVM, Hyper-V) and load balancing with HAProxy.
  • Secured systems using Fail2Ban, ModSecurity, and Kerberos/LDAP; automated deployments with Ansible and shell scripts.
  • Operated Docker-based PHP/Apache stacks and ELK for logging; built Apache Atlas, Kafka, HBase, and Solr from source for data governance.

Solusi 247 — System Administrator / Hadoop Administrator (Jul 2017 – Apr 2020)

  • Built GitLab CI/CD pipelines for deployment and automated infrastructure tasks using Ansible and shell scripting.
  • Implemented centralized logging/monitoring (Grafana, Loki, Prometheus) and IDS/IPS alerts to Telegram.
  • Maintained WordPress/email services and managed MySQL/PostgreSQL replication, proxy configurations, and scheduled backups.

Certifications & education

  • AWS Certified Solutions Architect – Associate (SAA-C03), Feb 2020.
  • AWS Certified SysOps Administrator – Associate, Nov 2020.
  • Bachelor’s Degree in Informatics Engineering, Siliwangi University of Tasikmalaya (2011–2017), GPA 3.06.

Community & languages

  • Member and contributor of Slackware Linux Indonesia; maintains the official community website (planet.slackware-id.org) and contributes to SlackBuilds/open-source packaging initiatives.
  • Languages: Indonesian, English, Japanese (elementary level).