Mohaimenul Islam Mubin

Mohaimenul Islam Mubin

DevOps Engineer

Dhaka, Bangladesh

mohaimenul22@gmail.com

Available for work

Building infrastructure that teams can rely on

I'm a DevOps Engineer with 3+ years of hands-on experience designing, building, and operating production infrastructure for fintech and enterprise clients. My work focuses on DevOps engineering, cloud-native infrastructure, and CI/CD automation to deliver scalable, reliable systems and streamline developer workflows.

I specialize in Kubernetes, GitOps workflows, and Infrastructure as Code. I've built CI/CD pipelines serving multiple engineering teams, containerized enterprise applications, and implemented observability stacks that reduce mean time to recovery significantly.

Beyond the technical work, I care deeply about developer experience and operational excellence. Reliable infrastructure should be invisible — it should let engineers focus on product, not plumbing.

When I'm not automating things, I explore blockchain and cryptography, contribute to personal projects, and keep up with the latest in cloud-native technologies.

Experience

DevOps Engineer

RedDot Digital Limited · Gulshan, Dhaka, Bangladesh

September 2025Present

Current role

Designing and managing containerized infrastructure for fintech and enterprise clients. Building CI/CD pipelines and Kubernetes-based deployments for high-availability production systems.

  • Designed and managed containerized applications using Docker and Kubernetes for scalable deployments
  • Built and maintained CI/CD pipelines (GitLab CI / GitHub Actions / Jenkins) to automate integration, testing, and deployment
  • Configured Kubernetes clusters and managed microservices using Helm charts and service mesh
  • Implemented IaC using Terraform and Ansible for consistent automated provisioning
  • Monitored system performance with Prometheus, Grafana, and ELK Stack
  • Worked on fintech projects: Telecash, Lenden, Mycash MFS — handling deployments, pipelines, and infrastructure issues
  • Contributed to HRIS, Axentec Corporate Website, and Robi internal projects
KubernetesDockerHelmGitLab CIPrometheusGrafanaELK StackGitHub ActionsTerraformAnsibleJenkins

Associate Platform Engineer

Business Automation Limited · Dhaka, Bangladesh

June 2023August 2025

Facilitated implementation and maintenance of web services and microservice environments. Executed Central Monitoring Service and handled multiple enterprise Kubernetes deployments.

  • Created and maintained deployment environments tailored for microservices architecture
  • Implemented Central Monitoring Service for unified oversight of in-house and client web services
  • Executed BIDA OSS integration with Ceylon Bank and SCB Bank
  • Deployed A2i ERP and NPO training management web service on Kubernetes
  • Established BRAC FMS and QMS services on Kubernetes environments
  • Participated in system upgrades, installations, configurations, and data migrations
KubernetesKnativeDockerPrometheusGrafanaPMM ServerLinuxNginxAnsible

Cyber Security Trainee

Dot Com Systems Limited · Dhaka, Bangladesh

May 2023August 2023

Part-time trainee role focused on vulnerability assessment, penetration testing, and malware analysis.

  • Conducted hands-on vulnerability assessments
  • Performed penetration testing with Burp Suite
  • Performed hybrid malware analysis
  • Maintained OWASP checklist for manual penetration testing
  • Conducted source code audits and produced documentation reports
Burp SuiteNmapMetasploitWiresharkOWASP

Technical expertise

Container & Orchestration

Container lifecycle management and orchestration at scale

KubernetesExpert
DockerExpert
Docker SwarmIntermediate
HelmAdvanced
ArgoCDAdvanced
K0sExpert
K3sExpert
K3dAdvanced

CI/CD Pipelines

Automated build, test, and deployment workflows

GitExpert
GitLab CIExpert
GitHub ActionsAdvanced
JenkinsExpert
Harbor Image RegistryIntermediate
Nexus RepositoryIntermediate

Infrastructure as Code

Declarative infrastructure provisioning and management

TerraformAdvanced
AnsibleAdvanced
PuppetIntermediate
ChefIntermediate
HashiCorp VaultIntermediate

Cloud Platforms

Multi-cloud architecture and services

AWSAdvanced
GCPIntermediate
AzureIntermediate
Oracle CloudAdvanced

Observability & Monitoring

End-to-end system visibility and alerting

PrometheusExpert
GrafanaExpert
Elasticsearch StackExpert
LokiAdvanced
TempoAdvanced
New RelicAdvanced
Uptime KumaAdvanced
Apache SkywalkingIntermediate
Percona PMMAdvanced
ZipkinIntermediate

Networking & API Gateway

Reverse proxies, ingress controllers, and service mesh

NginxAdvanced
ApacheAdvanced
KongExpert
Kong IngressExpert
IstioExpert
TraefikIntermediate

Databases

Relational and enterprise database management

MySQLAdvanced
MariaDBAdvanced
PostgreSQLIntermediate
MSSQLIntermediate
OracleDBIntermediate

Data Streaming

Event-driven architecture and message brokering

KafkaIntermediate
DebeziumIntermediate
RabbitMQIntermediate
KafdropIntermediate
ConduktorIntermediate

Security Tools

Vulnerability assessment and penetration testing

Burp SuiteIntermediate
NmapIntermediate
NessusIntermediate
AcunetixIntermediate
WiresharkIntermediate
MetasploitIntermediate

Systems & Scripting

Linux administration and automation scripting

Ubuntu / CentOS / RHELExpert
Bash / ShellExpert
PythonAdvanced
VMware ESXiIntermediate
YAML / JSONAdvanced

Credentials & Certifications

Industry-recognized certifications validating cloud and DevOps expertise.

Oracle

Oracle Cloud Infrastructure 2025 Certified DevOps Professional

Earned July 2025· Expires July 2027
Oracle CloudDevOpsOCI
View credential

Oracle

Oracle Cloud Infrastructure 2025 Certified Observability Professional

Earned July 2025· Expires July 2027
Oracle CloudObservabilityOCI
View credential

Oracle

Oracle Cloud Infrastructure 2025 Migration Architect Certified Professional

Earned August 2025· Expires August 2027
Oracle CloudMigrationArchitectureOCI
View credential

Oracle

Oracle Cloud Infrastructure 2025 Certified Foundations Associate

Earned July 2025· Expires July 2027
Oracle CloudOCICloud Foundations
View credential

Amazon Web Services

AWS Educate Introduction to Cloud 101

Earned July 2024
AWSCloud
View credential

Amazon Web Services

AWS Educate Getting Started with Compute

Earned July 2024
AWSCloudEC2Compute
View credential

OPSWAT

Introduction to Critical Infrastructure Protection (ICIP)

Earned December 2024· Expired
SecurityCritical InfrastructureCybersecurity
View credential

Cisco

Introduction to Cybersecurity

Earned July 2022
CybersecurityCiscoNetworking
View credential

Cisco

Networking Basics

Earned July 2022
NetworkingCisco
View credential

Cisco

Networking Devices and Initial Configuration

Earned September 2022
NetworkingCiscoConfiguration
View credential

Cisco

Endpoint Security

Earned October 2022
CybersecurityCiscoEndpoint SecurityLinux
View credential

Skill Badges

Hands-on skill badges earned through practical labs and assessments.

Implement Load Balancing on Compute Engine

Google Cloud · Earned April 2025

Set Up an App Dev Environment on Google Cloud

Google Cloud · Earned April 2025

Build a Secure Google Cloud Network

Google Cloud · Earned May 2025

Develop Your Google Cloud Network

Google Cloud · Earned May 2025

Build Infrastructure with Terraform on Google Cloud

Google Cloud · Earned May 2025

Implement Cloud Security Fundamentals on Google Cloud

Google Cloud · Earned May 2025