Maksudur Rahman Maateen
Verified Expert in Engineering
Software Developer
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.
Portfolio
Experience
Availability
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.
Work Experience
DevOps Engineer
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.
DevOps Engineer
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.
L2 System Engineer
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.
Linux System Administrator
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.
Experience
Battery Monitor
https://github.com/maateen/battery-monitorDockohealer
https://github.com/maateen/dockohealerAWS Redshift Terraform Module
https://github.com/terraform-aws-modules/terraform-aws-redshiftThese 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/TextSuggestIt 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-clusterDocker Pruner
https://github.com/maateen/docker-prunerTerraform Digitalocean Kubernetes Cluster
https://github.com/maateen/do-k8sDocker Beanstalkd
https://github.com/maateen/docker-beanstalkdK8s Kickstart
https://github.com/maateen/k8s-kickstartSkills
Languages
Python 3, Python, YAML, Bash, Go
Frameworks
OAuth 2, Django, Flask
Libraries/APIs
Jenkins Pipeline
Tools
GitHub, GitLab, Amazon Simple Queue Service (SQS), Amazon CloudWatch, Amazon Simple Notification Service (Amazon 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 Elastic MapReduce (EMR), Amazon Elastic Container Service (Amazon ECS)
Paradigms
Microservices, Automation, Continuous Delivery (CD), Continuous Integration (CI), DevOps, Continuous Deployment, Change Management, Test Automation
Platforms
Ubuntu, CentOS, Kubernetes, Docker, Amazon EC2, Linux, Amazon Web Services (AWS), DigitalOcean, AWS Elastic Beanstalk, WordPress, CoreOS, Drone CI, Google Cloud Platform (GCP), OpenStack, 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, Webhooks, AWS Auto Scaling, Configuration Management, Infrastructure Architecture, Monitoring, AWS DevOps, Continuous Monitoring, IPsec, Security, IT Security, 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, Cloud Architecture, Cloud Infrastructure, HAProxy, Galera Cluster, Consul, Amazon Kinesis, Security Operations Centers (SOC), Infrastructure
Education
Bachelor of Science Degree in Computer Science and Engineering
Patuakhali Science and Technology University - Patuakhali, Bangladesh
Certifications
AWS Certified Solutions Architect Associate
AWS
HashiCorp Certified: Terraform Associate
HashiCorp
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