Maksudur Rahman Maateen, Software Developer in Dhaka, Bangladesh
Maksudur Rahman Maateen

Software Developer in Dhaka, Bangladesh

Member since April 22, 2020
Maksudur is a DevOps enthusiast with five years of hands-on experience architecting secure, highly available, scalable, and cost-effective cloud infrastructures on AWS and GCP that support millions of concurrent users. He specializes in delivering cloud-native solutions focusing on automation, CI /CD, and container orchestration. He has worked with both startups and enterprise companies.
Maksudur is now available for hire

Portfolio

  • Digital Healthcare Solutions
    RabbitMQ, GitLab CI/CD, Travis CI, Drone CI, Amazon EKS, Elasticsearch...
  • Telenor Health
    RabbitMQ, ELK (Elastic Stack), Jenkins, DevOps, Amazon Web Services (AWS)...
  • ExonHost, LLC
    Amazon Web Services (AWS), Git, Python 3, Linux, Linux Server Administration...

Experience

Location

Dhaka, Bangladesh

Availability

Part-time

Preferred Environment

Amazon Web Services (AWS), Python 3, Terraform, Kubernetes, Docker, Linux, Ansible, Prometheus, Elasticsearch, Helm

The most amazing...

...infrastructure architecture I've designed and built on top of AWS and Kubernetes serves 7 million customers globally.

Employment

  • DevOps Engineer

    2019 - PRESENT
    Digital Healthcare Solutions
    • Planned the growth of microservices on the Kubernetes cluster to support thousands of concurrent users.
    • Automated infrastructure provisioning with Terraform and configuration management with Ansible for managing infrastructure in GitOps way.
    • Increased service availability up to 99.98% by designing, building and maintaining fault-tolerant, secured, and scalable cloud infrastructure on AWS and OpenStack.
    • Decreased request duration percentile to 700ms while handling 100k concurrent requests with Traefik Ingress on Kubernetes.
    • Boosted delivery speed up to 5x developing CI/CD pipelines for zero-downtime deployment with Ansible and Jenkins.
    • Built fast, persistent, and high-available Redis Cluster with Sentinel-HAProxy stack on nine nodes to centrally host user sessions of 7 million users.
    • Decreased average incident response time by building a combo platform for logging, monitoring, and alerting system on top of ELK, Prometheus, and Grafana.
    • Injected security in every phase of product delivery, leveraging DevSecOps workflow for enabling the team to operate at high speed and wide scale.
    • Awarded on-call superhero for solid incident management capability through PagerDuty.
    Technologies: RabbitMQ, GitLab CI/CD, Travis CI, Drone CI, Amazon EKS, Elasticsearch, DevOps, Amazon Web Services (AWS), Git, Python 3, Linux, Ubuntu, Amazon API Gateway, Linux Server Administration, Grafana, Prometheus, ELK (Elastic Stack), Python, Jenkins, OpenStack, AWS, Ansible, Terraform, Docker, Kubernetes
  • DevOps Engineer

    2017 - 2019
    Telenor Health
    • Planned the growth of core infrastructure pieces to support hundreds of thousands of concurrent users.
    • Increased service availability up to 99.91% by designing, building, and maintaining redundant hybrid cloud infrastructure.
    • Achieved high availability (HA) in micro-services leveraging AWS and Docker container orchestration.
    • Boosted delivery speed up to 5x developing CI/CD pipelines with Ansible and Jenkins.
    • Built security tooling and automation for enabling the team to operate at high speed and wide scale.
    • Conducted application security reviews and threat modeling tied to security services.
    • Injected security in every phase of product delivery, leveraging DevSecOps workflow.
    • Optimized the monthly cost of AWS around 60% by restructuring the architecture, reshaping instances as per forecast, and reserving infrastructure components where possible.
    • Achieved government health and telco data compliance leading Project Shield.
    • Awarded on-call superhero for responding quickly to incidents at PagerDuty.
    Technologies: RabbitMQ, ELK (Elastic Stack), Jenkins, DevOps, Amazon Web Services (AWS), Git, Python 3, Linux, Ubuntu, Linux Server Administration, CoreOS, Grafana, Prometheus, Kibana, Elasticsearch, Terraform, Kubernetes, Docker, Ansible, AWS
  • L2 System Engineer

    2017 - 2017
    ExonHost, LLC
    • Increased server uptime up to 99.5% setting up failover and resolving system malfunctions.
    • Achieved 99% customer satisfaction triaging issues, debugging, and finding workarounds if possible.
    • Reduced ticket response time up to three minutes supporting L1 system admins as subject matter expert.
    • Participated in the on-call rotation to provide 24/7 emergency customer response.
    Technologies: Amazon Web Services (AWS), Git, Python 3, Linux, Linux Server Administration, AWS, MariaDB, MySQL, PostgreSQL, HAProxy, NGINX, Bash, Python, CentOS, Ubuntu
  • Linux System Administrator

    2015 - 2017
    Contractual Projects
    • Took ownership and responsibility for the infrastructure, reliability, scalability, and performance of applications and services.
    • Achieved low latency (<100ms) in peer-to-peer video streaming building scalable private cloud infrastructure in the nearest data center.
    • Decreased operational cost by 57% virtualizing dedicated servers with OpenVZ and Xen.
    • Maintained and improved monitoring and alerting systems across AWS applications.
    Technologies: Amazon Web Services (AWS), Git, Python 3, Linux, Linux Server Administration, AWS, MariaDB, MySQL, PostgreSQL, HAProxy, NGINX, Bash, Python, CentOS, Ubuntu

Experience

  • Battery Monitor
    https://github.com/maateen/battery-monitor

    Battery Monitor is a utility tool developed on Python3 and PyGtk3. It will notify the user about charging, discharging, not charging and critically low battery state of the battery on Linux (surely if the battery is present).

  • Dockohealer
    https://github.com/maateen/dockohealer

    This daemon monitors and restarts unhealthy Docker containers instantly. This project is inspired by docker-autoheal and written on Golang with love. You should use systemd or supervisor to keep this daemon in running state always if you are not using a Dockerized version.

  • AWS Redshift Terraform Module
    https://github.com/terraform-aws-modules/terraform-aws-redshift

    Terraform module which creates Redshift resources on AWS.
    These types of resources are supported:
    - Redshift Cluster
    - Redshift parameter group
    - Redshift subnet group
    Terraform versions
    Terraform 0.12. Pin module version to ~> v2.0. Submit pull-requests to master branch.
    Terraform 0.11. Pin module version to ~> v1.0. Submit pull-requests to terraform011 branch.

  • TextSuggest
    https://github.com/bharadwaj-raju/TextSuggest

    TextSuggest is a program that shows completions for the word selected or (optionally) currently being typed.
    It is generally bound to a keyboard shortcut. Autocomplete, text expansion, etc, in all GUI apps (on X11).
    TextSuggest supports multiple languages and extensions.

  • Terraform AWS EKS Cluster
    https://github.com/maateen/terraform-aws-eks-cluster

    Terraform codes for launching a managed Kubernetes Cluster on AWS EKS.

  • Docker Pruner
    https://github.com/maateen/docker-pruner

    Clean up all unused Docker containers, images (both dangling and unreferenced), networks, and volumes regularly.

  • Terraform Digitalocean Kubernetes Cluster
    https://github.com/maateen/do-k8s

    This Kubernetes Cluster is managed by Digitalocean. Initially, there are two nodes and can be scaled anytime.

  • Docker Beanstalkd
    https://github.com/maateen/docker-beanstalkd

    A Docker container for beanstalkd, a simple and fast general-purpose work queue.

  • K8s Kickstart
    https://github.com/maateen/k8s-kickstart

    An Ansible Playbook which gifts you all components you require on K8s cluster.

Skills

  • Languages

    Python 3, Python, YAML, Bash, Go
  • Frameworks

    OAuth 2, Django, Flask, AWS EMR
  • Libraries/APIs

    Jenkins Pipeline
  • Tools

    GitHub, GitLab, Amazon SQS, Amazon CloudWatch, AWS Push Notification Service (AWS SNS), AWS IAM, AWS CLI, Amazon CloudFront CDN, NGINX, Jenkins, Fluentd, Kibana, Ansible, Docker Compose, Git, Terraform, AWS ELB, Amazon ElastiCache, Amazon EKS, Amazon Virtual Private Cloud (VPC), ELK (Elastic Stack), VPN, OpenVPN, AWS Key Management Service (KMS), Travis CI, Traefik, GitLab CI/CD, Helm, Grafana, Google Compute Engine (GCE), Google Kubernetes Engine (GKE), CircleCI, AWS CloudTrail, AWS CloudFormation, Istio, Apache, RabbitMQ, Logstash, Nagios, Kong, Vault, Amazon ECS (Amazon Elastic Container Service)
  • Paradigms

    Microservices, Automation, Continuous Delivery (CD), Continuous Integration (CI), DevOps, Continuous Deployment, Change Management, Test Automation
  • Platforms

    Ubuntu, CentOS, Kubernetes, Docker, Amazon EC2 (Amazon Elastic Compute Cloud), Linux, Amazon Web Services (AWS), DigitalOcean, AWS Elastic Beanstalk, WordPress, CoreOS, Drone CI, Google Cloud Platform (GCP), OpenStack, AWS Kinesis, AWS Lambda
  • Storage

    PostgreSQL, Redis, Elasticsearch, Amazon S3 (AWS S3), Amazon DynamoDB, Database Migration, MySQL, MariaDB, Redshift, Google Cloud SQL, Amazon Aurora
  • Other

    Load Balancers, Cloud Services, Cost Management, Cloudflare, Identity & Access Management (IAM), Linux Server Administration, DNS Configuration, Infrastructure as Code (IaC), DNS, Ingress Controllers, Webhook, AWS, AWS Auto Scaling, Configuration Management, Infrastructure Architecture, Monitoring, AWS DevOps, Continuous Monitoring, IPsec, System Administration, Site Reliability Engineering (SRE), Server Migration, Domains & Hosting, Prometheus, Incident Management, Release Management, Machine Learning, Amazon API Gateway, Video Streaming, Linkerd, Cloud Engineering, Infrastructure Automation, Cloud Architecture, Cloud Infrastructure, HAProxy, Galera Cluster, Consul, Security Operations Centers (SOC)
  • Industry Expertise

    Security, IT Security

Education

  • Bachelor of Science Degree in Computer Science and Engineering
    2014 - 2017
    Patuakhali Science and Technology University - Patuakhali, Bangladesh

Certifications

  • AWS Certified Solutions Architect – Associate
    JANUARY 2021 - JANUARY 2024
    Amazon Web Services Training and Certification
  • HashiCorp Certified: Terraform Associate
    JANUARY 2021 - JANUARY 2023
    HashiCorp

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