About Me

Juni Yadi

Juni Yadi

Lead DevOps Engineer

Professional Summary

Results-driven Cloud DevOps Engineer with 4+ years of experience specializing in cloud infrastructure automation, Kubernetes orchestration, and CI/CD pipeline development. Expertise in AWS, Kubernetes, Terraform, Ansible, and security best practices to optimize system performance and reliability.

Proven track record of implementing cost-efficient cloud solutions, reducing infrastructure costs by over 60%, cut deployment times by 40%, and enhancing security through automated compliance checks. Passionate about designing scalable, resilient architectures and streamlining workflows to improve operational efficiency.

Skills

Cloud & Infrastructure

  • AWS (EC2, EKS, Lambda, S3, RDS, VPC)
  • Terraform, CloudFormation, Pulumi
  • Docker, Kubernetes, Helm
  • CI/CD (Jenkins, GitHub Actions)
  • GitOps, ArgoCD

Security & Monitoring

  • AWS IAM, Secrets Manager
  • Vault, Teleport, Pritunl
  • ELK Stack, Fluentbit
  • Prometheus, Grafana, CloudWatch
  • SonarQube, Trivy

Networking & Services

  • Istio, AWS ALB/NLB
  • Nginx, HAProxy
  • VPN, AWS Route 53
  • AWS API Gateway, CloudFront
  • Redis, RabbitMQ

Programming & Automation

  • Python, Bash Script
  • TypeScript, JavaScript
  • Ansible
  • Serverless Framework, SST Framework
  • AWS EventBridge, SNS, SQS

Certifications

AWS Certified Cloud Practitioner

April 2024

AWS Certified SysOps Administrator – Associate

November 2022

AWS Academy Graduate - AWS Academy Cloud Operations

October 2022

Professional Experience

Lead DevOps Engineer

PT. Pintar Pemenang Asia | August 2024 - Present

  • Spearheaded the DevOps team to enhance automation, security, and infrastructure reliability across multiple environments
  • Designed and optimized AWS EKS clusters using auto-scaling, Spot Instances, and Terraform, improving cost efficiency and reliability by 30%
  • Built and managed GitOps-based CI/CD pipelines using ArgoCD, Jenkins, Terraform, and Ansible, enabling automated zero-downtime deployments
  • Optimized build and deployment times for Java & Node.js applications by fine-tuning Jenkins pipelines, caching dependencies, and parallelizing builds, reducing deployment time by 80%
  • Integrated SonarQube for automated security scanning & code quality checks, ensuring vulnerabilities are fixed before deployment
  • Implemented Istio service mesh with mTLS for secure service-to-service communication, traffic control, and observability in microservices
  • Developed real-time monitoring & observability by integrating AWS CloudWatch, Prometheus, and Discord log alerts, reducing incident response time by 50%
  • Optimized and scaled Jitsi infrastructure for Prakerja (Government Program), ensuring seamless video conferencing for thousands of users
  • Led network observability and traffic control improvements using Istio and Kiali, enhancing performance and debugging capabilities
  • Configured AWS ALB Ingress Controller for secure SSL termination & path-based routing to expose microservices efficiently
  • Integrated Elastic Cloud for log monitoring and APM for anomaly detection, improving troubleshooting and performance analysis
  • Enabled centralized logging with Fluent Bit, ELK Stack (Elasticsearch, Logstash, Kibana), enhancing log insights and system debugging
  • Reduced infrastructure costs by migrating Java microservices from x86_64 to ARM architecture using AWS Graviton
  • Assisted in integrating AWS infrastructure with client environments on Azure, ensuring seamless interoperability
  • Collaborated with Product Teams to develop real-time dashboards in AWS QuickSight, providing critical insights into application performance and user behavior

DevOps Engineer

PT. Pintar Pemenang Asia | August 2022 - August 2024

  • Reduced AWS costs by 40% within the first three months through resource optimization and instance right-sizing
  • Designed and built scalable AWS infrastructure, implementing autoscaling, cost optimization strategies, and microservices architecture
  • Lowered bandwidth costs by 90% for internal applications by leveraging AWS VPC Endpoints, optimizing traffic routing, and implementing caching mechanisms
  • Reduced storage costs by 60% by implementing the correct S3 storage classes based on usage patterns
  • Automated manual infrastructure tasks using Terraform, Ansible, Bash scripts, and Python, improving operational efficiency and reducing manual work
  • Developed internal DevOps tools using AWS Lambda, API Gateway, and AWS SNS to monitor AWS SES bounce and complaint rates for proactive email deliverability management
  • Integrated microservices with AWS Lambda using Python and TypeScript to build efficient internal automation tools
  • Created and managed Java Spring Boot microservices deployments on AWS EKS, ensuring high availability and auto-scaling
  • Designed and deployed an uptime monitoring system with real-time alerting, capable of detecting downtime and sending alerts within one second
  • Set up and configured Teleport for secure SSH access, internal application authentication, access control, and monitoring, ensuring compliance and security
  • Created Ansible scripts to integrate multiple DevOps tools and tested them in a controlled development environment
  • Migrated legacy tools (manual deployments) to Helm charts, streamlining updates and maintenance for better Kubernetes (EKS) application management
  • Managed and monitored Kubernetes infrastructure using Rancher, ensuring EKS cluster stability, workload performance, and security
  • Designed and deployed a scalable Jitsi video conferencing infrastructure for the Prakerja Program, optimizing storage costs for recordings by 50%

DevOps Engineer

PT. Aku Cinta Memiles | July 2021 - August 2022

  • Built and managed scalable AWS infrastructure for production environments, improving system reliability
  • Migrated a traditional database to AWS, ensuring high availability and scalability to handle thousands of users during promotional events
  • Configured and optimized Nginx servers for Laravel and Next.js applications, improving response times and resource efficiency
  • Implemented Redis as a caching layer, significantly reducing database load and improving system performance
  • Migrated system from a single-instance to a multi-instance architecture, resolving I/O bottlenecks and increasing resilience
  • Designed and deployed a CI/CD pipeline using GitHub Actions, automating deployments across all existing repositories
  • Automated infrastructure provisioning using Ansible, reducing manual setup time and improving consistency
  • Managed RDS databases with automated backups, monitoring, and performance optimization
  • Performed safe database migrations, ensuring schema updates were executed securely through version-controlled repositories
  • Upgraded system notifications using AWS SES, enhancing email reliability and reducing delivery failures
  • Conducted frequent system updates and vulnerability scans, strengthening security and reducing risks

Backend Development and Cloud/Serverless Architecture

Pojokan Projects | May 2019 - July 2021

  • Developed and maintained serverless backend systems using PHP, Node.js, and TypeScript, leveraging AWS Lambda, API Gateway, and DynamoDB for cost-efficient scalability
  • Optimized serverless architectures to reduce costs during idle periods while maintaining high availability for applications in hospital surveys, education platforms, and restaurant management systems
  • Designed and implemented CI/CD pipelines using GitHub Actions, automating deployments for seamless application updates
  • Built and integrated AWS Chime to enable reliable and scalable online communication features
  • Managed and optimized Amazon S3 object storage for faster access and cost reduction
  • Utilized Serverless Framework to manage and maintain AWS Lambda functions and associated resources, ensuring efficient IAM policy attachments
  • Designed and implemented DNS management solutions using Amazon Route 53 and Cloudflare, ensuring high availability and low latency
  • Implemented secure authentication and authorization mechanisms using OAuth2, JWT, and AWS IAM, ensuring robust access control
  • Collaborated with cross-functional teams to deliver high-quality software solutions, including front-end engineers, product managers, and designers

Education

Bachelor's in Informatics Engineering

University Widya Kartika, Surabaya, Indonesia | 2022 - Present

Projects

Pulumi Easy

pulumi-easy is a Python package that simplifies AWS infrastructure-as-code using Pulumi. It provides higher-level abstractions that make it easier to create common AWS resources without having to write boilerplate code.

Technologies:
  • Python
  • Pulumi
  • AWS

JuniYadi Portfolio & Blog Website

A personal portfolio and blog website built using Next.js, showcasing my projects, skills, and experiences. The website is hosted on Vercel for optimal performance and scalability.

Technologies:
  • Next.js
  • Vercel
  • Tailwind CSS